Mybatis-Spring Java Configuration #MapperScan Annotation - java

I am trying to set up my mybatis-spring like shown in the following examples:
1)Code from a previous answer on stackoverflow, a few answer down
(MyBatis-Spring + #Configuration - Can't autowire mapper beans)
#Configuration
#MapperScan("org.mybatis.spring.sample.mapper")
public class AppConfig
{
#Bean
public DataSource dataSource()
{
return new EmbeddedDatabaseBuilder().addScript("schema.sql").build();
}
#Bean
public DataSourceTransactionManager transactionManager()
{
return new DataSourceTransactionManager(dataSource());
}
#Bean
public SqlSessionFactory sqlSessionFactory() throws Exception
{
SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
return sessionFactory.getObject();
}
}
2)Code from their documentation (http://www.mybatis.org/spring/mappers.html)
Usage:
public class FooServiceImpl implements FooService {
private UserMapper userMapper;
public void setUserMapper(UserMapper userMapper) {
this.userMapper = userMapper;
}
public User doSomeBusinessStuff(String userId) {
return this.userMapper.getUser(userId);
}
}
Registering Mapper with #MapperScan:
#Configuration
#MapperScan("org.mybatis.spring.sample.mapper")
public class AppConfig {
#Bean
public DataSource dataSource() {
return new EmbeddedDatabaseBuilder().addScript("schema.sql").build()
}
#Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
return sessionFactory.getObject();
}
}
My code which isn't working is as shown below:
My Application with nested AppConfig:
#SpringBootApplication
#MapperScan(basePackages="com.tjwhalen.game.service.dao")
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
//#MapperScan(basePackages="com.tjwhalen.game.service.dao")
public class AppConfig {
#Autowired
DataSource datasource;
#Bean
public DataSourceTransactionManager transactionManager() {
return new DataSourceTransactionManager(datasource);
}
#Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sqlSessionFactory = new SqlSessionFactoryBean();
sqlSessionFactory.setDataSource(datasource);
//sqlSessionFactory.setTypeAliasesPackage("com.tjwhalen.game.model");
return (SqlSessionFactory) sqlSessionFactory.getObject();
}
#Bean
public ItemSummaryDbService itemSummaryDbService() {
return new ItemSummaryDbServiceImpl();
}
}
}
My service:
public class ItemSummaryDbServiceImpl implements ItemSummaryDbService {
#Autowired
private ItemSummaryMapper itemSummaryMapper;
public void setItemSummaryMapper(ItemSummaryMapper itemSummaryMapper) {
this.itemSummaryMapper = itemSummaryMapper;
}
public void writeItemSummarys(List<ItemSummary> itemSummarys) {
for(ItemSummary itemSummary : itemSummarys) {
itemSummaryMapper.insertItemSummary(itemSummary);
}
}
public List<ItemSummary> lookupItemSummarys() {
return itemSummaryMapper.selectItemSummarys();
}
}
My mapper in the package indicated by the #MapperScan annotaion:
package com.tjwhalen.game.service.dao;
import java.util.List;
import com.tjwhalen.game.model.ItemSummary;
public interface ItemSummaryMapper {
public void insertItemSummary(ItemSummary itemSummary);
public List<ItemSummary> selectItemSummarys();
}
My usage:
public class LoadItems implements CommandLineRunner {
private final static Logger logger = LoggerFactory.getLogger(LoadItems.class);
#Autowired
private ItemSummaryDbService service;
public void run(String... arg0) throws Exception {
logger.info("LoadItems is running");
ArrayList<ItemSummary> list = new ArrayList<ItemSummary>();
list.add(new ItemSummary(1, "one", 1));
service.writeItemSummarys(list);
}
}
My stacktrace:
java.lang.AbstractMethodError: org.mybatis.spring.transaction.SpringManagedTransactionFactory.newTransaction(Ljava/sql/Connection;Z)Lorg/apache/ibatis/transaction/Transaction;
at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSessionFromDataSource(DefaultSqlSessionFactory.java:77) ~[ibatis-core-3.0.jar:na]
at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSession(DefaultSqlSessionFactory.java:40) ~[ibatis-core-3.0.jar:na]
at org.mybatis.spring.SqlSessionUtils.getSqlSession(SqlSessionUtils.java:102) ~[mybatis-spring-1.3.0.jar:1.3.0]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:429) ~[mybatis-spring-1.3.0.jar:1.3.0]
at com.sun.proxy.$Proxy41.insert(Unknown Source) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:279) ~[mybatis-spring-1.3.0.jar:1.3.0]
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:54) ~[ibatis-core-3.0.jar:na]
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:35) ~[ibatis-core-3.0.jar:na]
at com.sun.proxy.$Proxy42.insertItemSummary(Unknown Source) ~[na:na]
at com.tjwhalen.game.service.impl.ItemSummaryDbServiceImpl.writeItemSummarys(ItemSummaryDbServiceImpl.java:32) ~[classes/:na]
at com.tjwhalen.game.loader.LoadItems.run(LoadItems.java:28) ~[classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:798) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:782) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:769) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at com.tjwhalen.game.Application.main(Application.java:37) [classes/:na]
And finally my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tjwhalen.game</groupId>
<artifactId>Runescape-App</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
</parent>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/postgresql/postgresql -->
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>8.4-702.jdbc4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.ibatis/ibatis-core -->
<dependency>
<groupId>org.apache.ibatis</groupId>
<artifactId>ibatis-core</artifactId>
<version>3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<!-- <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.2.RELEASE</version>
</dependency> -->
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.batch/spring-batch-infrastructure -->
<dependency>
<groupId>org.springframework.batch</groupId>
<artifactId>spring-batch-infrastructure</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
I've had a lot of problems in the past regarding incorrect pom.xml, so I looked at each dependency involving database access and made sure the project had the correct provided dependencies. I also checked that the versions were the same as mentioned in the provided dependencies.
What does the error message AbstractMethodError indicate?
Feel free to ask any clarifying questions


I figured it out. I added a dependency
<!-- https://mvnrepository.com/artifact/org.apache.ibatis/ibatis-core -->
<dependency>
<groupId>org.apache.ibatis</groupId>
<artifactId>ibatis-core</artifactId>
<version>3.0</version>
</dependency>
and removing it fixed. I don't know why this dependency was here, I went through and checked the rest of my dependencies to see if they depended on ibatis-core and they didn't.
So it was an oversight on my part, and shows that AbstractMethodError is likely a dependency issue, and that is the first thing that should be checked when facing it

Related

KeyCloak configuration and Spring permitAll not working

I am trying to configure Keycloak with spring boot. But the endpoints that I configure wether its open or with a Role I walys get a 401
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true,
jsr250Enabled = true)
public class KeycloakSecurityConfig extends
KeycloakWebSecurityConfigurerAdapter {
#Override
protected void configure(HttpSecurity http) throws Exception {
super.configure(http);
http.authorizeRequests()
.antMatchers("/test/anoymous").permitAll();
.antMatchers("/test/user").hasAnyRole("user")
.antMatchers("/test/admin").hasAnyRole("admin")
.antMatchers("/test/all-user").hasAnyRole("user","admin")
.anyRequest()
http.csrf().disable();
}
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
KeycloakAuthenticationProvider keycloakAuthenticationProvider = keycloakAuthenticationProvider();
keycloakAuthenticationProvider.setGrantedAuthoritiesMapper(new SimpleAuthorityMapper());
auth.authenticationProvider(keycloakAuthenticationProvider);
}
#Bean
#Override
protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
return new RegisterSessionAuthenticationStrategy(new SessionRegistryImpl());
}
#Bean
public KeycloakConfigResolver KeycloakConfigResolver() {
return new KeycloakSpringBootConfigResolver();
}
}
When I hit the test endpoint anonymous I get back
{
"timestamp": "2021-07-08T20:39:21.265+0000",
"status": 401,
"error": "Unauthorized",
"message": "Unauthorized",
"path": "/test/anonymous"
}
However even with the keycloak token I get an error which is not authorized... The same as above but with Bearer Token.
#RestController
#RequestMapping("/test")
public class KeyController {
#RequestMapping(value="/anonymous", method=RequestMethod.GET)
public ResponseEntity<String> AdminEndpoint() {
return ResponseEntity.ok("Hello Anounymous");
}
#RolesAllowed("user")
#RequestMapping(value="/user", method=RequestMethod.GET)
public ResponseEntity<String> getUser(){
return ResponseEntity.ok("Hello User");
}
#RequestMapping(value="/admin", method=RequestMethod.GET)
public ResponseEntity<String> getAdmin(){
return ResponseEntity.ok("Hello Admin");
}
#RequestMapping(value="/all-users", method=RequestMethod.GET)
public ResponseEntity<String> getAllUsers(){
return ResponseEntity.ok("Hello to all");
}
}
It runs normally but I checked every spring security configuration on stack as possible as I can but nothing worked. Please help me.
This is the Pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.io.keycloak</groupId>
<artifactId>keycloak</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<spring.version>5.3.4</spring.version>
<keycloak.version>14.0.0</keycloak.version>
<java.version>11</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-boot-starter</artifactId>
<version>${keycloak.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

I figured it out ...
1 - The class RestController was not being found because it was in another package. So at the main class where the main function is I inputed #ComponentScan for where the RestController was.
#SpringBootApplication
#ComponentScan("com.io*") //This was the issue...
public class mainApp {
public static void main(String[] args) {
//Hello
SpringApplication.run(mainApp.class, args);
}
}
Just an FYI. Even with the #RestController, #Component, #Controller and other annotations where automatically spring would find does not actually work that way. You sometimes need to input #ComponentScan as well.
The result:

Why does Spring throw "IllegalStateException: No ServletContext set" when using a WebApplicationInitializer

im just learning java, and now try to creat UI for my application with using MVC+thymeleaf. When i try to run application, i get error, stacktrace like this:
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceHandlerMapping' defined in org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'resourceHandlerMapping' threw exception; nested exception is java.lang.IllegalStateException: No ServletContext set
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:89)
at com.foxminded.university.Main.main(Main.java:26)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'resourceHandlerMapping' threw exception; nested exception is java.lang.IllegalStateException: No ServletContext set
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651)
... 14 more
Caused by: java.lang.IllegalStateException: No ServletContext set
at org.springframework.util.Assert.state(Assert.java:73)
at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.resourceHandlerMapping(WebMvcConfigurationSupport.java:534)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
... 15 more
my config file:
#Configuration
#ComponentScan("com.foxminded.university")
#PropertySource("classpath:config.properties")
#EnableWebMvc
public class ContextConfig implements WebMvcConfigurer {
private final ApplicationContext applicationContext;
#Value("${url}")
public String url;
#Value("${user}")
public String user;
#Value("${password}")
public String password;
#Value("${driverClass}")
public Class<Driver> driverClass;
#Autowired
public ContextConfig(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
#Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
#Bean
public JdbcTemplate jdbcTemplate(DataSource dataSource) {
return new JdbcTemplate(dataSource);
}
#Bean
public DataSource dataSource() {
SimpleDriverDataSource dataSource = new SimpleDriverDataSource();
dataSource.setDriverClass(driverClass);
dataSource.setUsername(user);
dataSource.setUrl(url);
dataSource.setPassword(password);
return dataSource;
}
#Bean
public SpringResourceTemplateResolver templateResolver() {
SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
templateResolver.setApplicationContext(applicationContext);
templateResolver.setPrefix("/WEB-INF/views/");
templateResolver.setSuffix(".html");
templateResolver.setTemplateMode(TemplateMode.HTML);
return templateResolver;
}
#Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver());
templateEngine.setEnableSpringELCompiler(true);
return templateEngine;
}
#Override
public void configureViewResolvers(ViewResolverRegistry registry) {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
resolver.setTemplateEngine(templateEngine());
registry.viewResolver(resolver);
}
}
dispatcherServlet:
public class SpringMvcDispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer{
#Override
protected Class<?>[] getRootConfigClasses() {
return null;
}
#Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] {ContextConfig.class};
}
#Override
protected String[] getServletMappings() {
return new String[] {"/"};
}
}
and pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.foxminded.tasks</groupId>
<artifactId>University1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>University1</name>
<properties>
<maven.compiler.target>11</maven.compiler.target>
<maven.compiler.source>11</maven.compiler.source>
<junit.jupiter.version>5.6.0</junit.jupiter.version>
<org.springframework.version>5.2.5.RELEASE</org.springframework.version>
<org.springframework.boot.version>2.2.6.RELEASE</org.springframework.boot.version>
<h2.version>1.4.200</h2.version>
<org.postgres.version>42.2.11</org.postgres.version>
<org.sonarsource.scanner.maven.version>3.2</org.sonarsource.scanner.maven.version>
<mockito.version>3.3.3</mockito.version>
<logback.version>1.3.0-alpha5</logback.version>
<slf4j.version>2.0.0-alpha1</slf4j.version>
<servlet.version>4.0.1</servlet.version>
<thymeleaf.version>3.0.11.RELEASE</thymeleaf.version>
</properties>
<profiles>
<profile>
<id>sonar</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<sonar.host.url>
http://localhost:9000
</sonar.host.url>
</properties>
</profile>
</profiles>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
<version>${org.springframework.boot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.2.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<version>2.2.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring5</artifactId>
<version>${thymeleaf.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.sonarsource.scanner.maven</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>${org.sonarsource.scanner.maven.version}</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>${org.postgres.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logback.version}</version>
</dependency>
</dependencies>
</project>
please, can u explain, where is problem and what can i do. I tried to delete .m2 repository and rebuild project, but nothing was happend.
main method i didn change from creating dao and service layer, its make little menu in console for getting time table for students and teachers:
public class Main {
private final static Logger logger = LoggerFactory.getLogger(Main.class);
public static void main(String[] args) {
logger.info("Start Main");
#SuppressWarnings("resource")
final ApplicationContext context = new AnnotationConfigApplicationContext(ContextConfig.class);
DatabaseInitializer initializer = context.getBean("databaseInitializer", DatabaseInitializer.class);
try {
initializer.createTableInsertData();
} catch (IOException e1) {
logger.error("DB was not created");
System.exit(0);
}
TimeTable timeTable = context.getBean("timeTable", TimeTable.class);
TeacherService teacherService = context.getBean("teacherService", TeacherService.class);
StudentService studentService = context.getBean("studentService", StudentService.class);
final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
final String commandListMessage = "Please select which TimeTable you want take:\n"
+ "\"1\" - TimeTable for student for selected interval;\n"
+ "\"2\" - TimeTable for teacher for selected interval;\n"
+ "\"help\" - for get this list of commands again;\n" + "or \"exit\" to exit.";
System.out.println(commandListMessage);
String command = "";
try {
command = reader.readLine();
logger.debug("command is {}", command);
logger.debug("start menu loop");
while (!(command.equalsIgnoreCase("exit"))) {
logger.info("switch command");
switch (command) {
case "1":
logger.debug("case 1");
System.out.println("Enter student id:");
int studentId = Integer.parseInt(reader.readLine());
Student student = studentService.findOne(studentId);
if (student != null) {
System.out.println("Enter date interval as \"MM.DD-MM.DD\":");
String[] dateInterval = reader.readLine().split("\\D");
logger.debug("getting TT for student {} and period {}.{}-{}.{}", student, dateInterval[0], dateInterval[1], dateInterval[2], dateInterval[3]);
String timeTableString = timeTable.getTTForGroup(student,
LocalDateTime.of(Year.now().getValue(), Month.of(Integer.parseInt(dateInterval[0])),
Integer.parseInt(dateInterval[1]), 0, 0, 0),
LocalDateTime.of(Year.now().getValue(), Month.of(Integer.parseInt(dateInterval[2])),
Integer.parseInt(dateInterval[3]), 23, 59, 59));
timeTable.printTimeTable(timeTableString);
} else {
System.out.println("student whith this id \"" + studentId + "\" is not exist.");
logger.warn("student with this id {} is not exist", studentId);
}
break;
case "2":
logger.debug("case 2");
System.out.println("Enter teacher id:");
int teacherId = Integer.parseInt(reader.readLine());
Teacher teacher = teacherService.findOne(teacherId);
if (teacher != null) {
System.out.println("Enter date interval as \"MM.DD-MM.DD\":");
String[] dateInterval = reader.readLine().split("\\D");
logger.debug("getting TT for teacher {} and period {}.{}-{}.{}", teacher, dateInterval[0], dateInterval[1], dateInterval[2], dateInterval[3]);
String timeTableString = timeTable.getTTForTeacher(teacher,
LocalDateTime.of(Year.now().getValue(), Month.of(Integer.parseInt(dateInterval[0])),
Integer.parseInt(dateInterval[1]), 0, 0, 0),
LocalDateTime.of(Year.now().getValue(), Month.of(Integer.parseInt(dateInterval[2])),
Integer.parseInt(dateInterval[3]), 23, 59, 59));
timeTable.printTimeTable(timeTableString);
} else {
System.out.println("teacher whith this id \"" + teacherId + "\" is not exist.");
logger.warn("teacher with this id {} is not exist", teacherId);
}
break;
case "help":
logger.debug("case help");
System.out.println(commandListMessage);
break;
default:
logger.debug("case default");
System.out.println("Please enter the correct command.");
break;
}
command = reader.readLine();
}
reader.close();
} catch (IOException e) {
logger.error("Reading failure", e);
}
logger.info("Exit Main");
}
}

As was said, the problem was with tomcat. i added tomcat7 plugin and maven-war-plugin, and run it as tomcat7:run, so it works now. and make version of servlet 4.0.0, not 4.0.1 cause for some reason it does not work with it.

I guess you may not have overridden methods of this class
AbstractAnnotationConfigDispatcherServletInitializer correctly. Look something around this. Enable debug log. Why don't you give try with Spring Boot. It automatically manages creation of all dependencies for you.

Spring Boot and Keycloak configuration in properties raise a NullPointerException then 500 status code

I am currently working on a project and I have to deal with Spring Boot and keycloak.
I want a configuration that is in the application.properties of spring.
Here is a part of my configuration file:
keycloak.enabled = true
keycloak.auth-server-url=${SSO_URL:http://MYIP:8082/auth/}
keycloak.realm=${SSO_REALM:approfox-dev}
keycloak.resource=${SSO_CLIENT:approfox-dev-login}
keycloak.ssl-required=none
keycloak.public-client=true
keycloak.principal-attribute=preferred_username
But when I try to access to any API endpoint, I got an 500 Internal Server Error with juste a NullPointerException. I do not know from where or why this exception occures. It seems that the application properties file is not loading by keycloak because when I use keycloack.json and the method that load it, it works.
#Configuration
#EnableWebSecurity
#KeycloakConfiguration
#ComponentScan(basePackageClasses = KeycloakSecurityComponents.class)
#ConditionalOnProperty(
value = "keycloak.enabled",
havingValue = "true",
matchIfMissing = false
)
class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) {
SimpleAuthorityMapper grantedAuthorityMapper = new SimpleAuthorityMapper();
grantedAuthorityMapper.setPrefix("ROLE_");
KeycloakAuthenticationProvider keycloakAuthenticationProvider = keycloakAuthenticationProvider();
keycloakAuthenticationProvider.setGrantedAuthoritiesMapper(grantedAuthorityMapper);
auth.authenticationProvider(keycloakAuthenticationProvider);
}
#Bean
#Override
#ConditionalOnMissingBean(HttpSessionManager.class)
protected HttpSessionManager httpSessionManager() {
return new HttpSessionManager();
}
// Keycloak Spring Boot resolver not working
#Bean
public KeycloakSpringBootConfigResolver KeycloakConfigResolver() {
return new KeycloakSpringBootConfigResolver();
}
#Bean
#Override
protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
return new RegisterSessionAuthenticationStrategy(
new SessionRegistryImpl());
}
#Override
protected void configure(HttpSecurity http) throws Exception {
super.configure(http);
http.csrf()
.disable()
.cors()
.and()
.authorizeRequests()
.antMatchers("/exemple1")
.hasRole("student")
.antMatchers("/exemple2")
.hasRole("admin")
.anyRequest()
.permitAll();
}
// keycloak.json working...
/**
* Overrides default keycloak config resolver behaviour (/WEB-INF/keycloak.json) by a simple mechanism.
* <p>
* This example loads other-keycloak.json when the parameter use.other is set to true, e.g.:
* {#code ./gradlew bootRun -Duse.other=true}
*
* #return keycloak config resolver
*/
/*#Bean
public KeycloakConfigResolver keycloakConfigResolver() {
return new KeycloakConfigResolver() {
private KeycloakDeployment keycloakDeployment;
#Override
public KeycloakDeployment resolve(HttpFacade.Request facade) {
if (keycloakDeployment != null) {
return keycloakDeployment;
}
String path = "/keycloak.json";
InputStream configInputStream = getClass().getResourceAsStream(path);
if (configInputStream == null) {
throw new RuntimeException("Could not load Keycloak deployment info: " + path);
} else {
keycloakDeployment = KeycloakDeploymentBuilder.build(configInputStream);
}
return keycloakDeployment;
}
};
}*/
}
I have searched all over internet I can't find anything about that issue...
My POM.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.1.RELEASE</version>
</parent>
<groupId>xxx</groupId>
<artifactId>xxxx</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>xxxx</name>
<description>xxxx</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-boot-starter</artifactId>
<version>8.0.1</version>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-boot-adapter</artifactId>
<version>8.0.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.18</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.keycloak.bom</groupId>
<artifactId>keycloak-adapter-bom</artifactId>
<version>3.3.0.Final</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- <plugin>-->
<!-- <artifactId>maven-assembly-plugin</artifactId>-->
<!-- <version>3.1.1</version>-->
<!-- <configuration>-->
<!-- <descriptorRefs>-->
<!-- <descriptorRef>project</descriptorRef>-->
<!-- </descriptorRefs>-->
<!-- </configuration>-->
<!-- <executions>-->
<!-- <execution>-->
<!-- <id>make-assembly</id>-->
<!-- <phase>package</phase>-->
<!-- <goals>-->
<!-- <goal>single</goal>-->
<!-- </goals>-->
<!-- </execution>-->
<!-- </executions>-->
<!-- </plugin>-->
</plugins>
</build>
</project>

Null Autowired Spring Bean (Cassandra Repository) in Service

I am getting a NullPointerException on an autowired bean in a service class. The class I'm trying to autowire is a Cassandra Repository.
My main class Application.java
#SpringBootApplication
#EnableAutoConfiguration
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
My Cassandra configuration CassandraConfig.java
#Configuration
#EnableCassandraRepositories(basePackages = "com.myretail")
public class CassandraConfig extends AbstractCassandraConfiguration {
#Override
protected String getKeyspaceName() {
return "myretail";
}
#Bean
public CassandraClusterFactoryBean cluster() {
CassandraClusterFactoryBean cluster =
new CassandraClusterFactoryBean();
cluster.setContactPoints("127.0.0.1");
cluster.setPort(9042);
return cluster;
}
#Bean
public CassandraMappingContext cassandraMapping()
throws ClassNotFoundException {
return new BasicCassandraMappingContext();
}
#Bean
public ProductService productService() {
return new ProductService();
}
}
My repository (dao) ProductPriceRepository.java
public interface ProductPriceRepository extends CassandraRepository<ProductPrice> {
#Query("select * from productprice where productId = ?0")
ProductPrice findByProductId(String productId);
}
My service class ProductService.java
#Path("/product")
#Component
public class ProductService {
#Autowired
ProductPriceRepository productPriceRepository;
#GET
#Path("/{id}")
#Produces(MediaType.APPLICATION_JSON)
public Product getTargetProduct(#PathParam("id") String productId) {
String urlString = "https://api.vendor.com/products/v3/" + productId + "?fields=descriptions&id_type=TCIN&key=43cJWpLjH8Z8oR18KdrZDBKAgLLQKJjz";
JSONObject json = null;
try {
json = new JSONObject(JsonReader.getExternalJsonResponse(urlString));
} catch (JSONException e) {
e.printStackTrace();
}
Product product = new Product();
product.setId(productId);
try {
JSONObject productCompositeResponse = json.getJSONObject("product_composite_response");
JSONArray items = productCompositeResponse.getJSONArray("items");
JSONObject item = items.getJSONObject(0);
JSONObject onlineDescription = item.getJSONObject("online_description");
product.setName(onlineDescription.getString("value"));
} catch (JSONException e) {
e.printStackTrace();
}
ProductPrice productPrice = productPriceRepository.findByProductId(productId);
product.setProductPrice(productPrice);
return product;
}
}
My pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myretail</groupId>
<artifactId>MyRetail</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>MyRetail</name>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>2.1.5</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-cassandra</artifactId>
<version>1.4.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit-spring</artifactId>
<version>2.1.9.2</version>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit-shaded</artifactId>
<version>2.1.9.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hectorclient</groupId>
<artifactId>hector-core</artifactId>
<version>2.0-0</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-servlet</artifactId>
<version>1.18.3</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.18.3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
<version>1.3.6.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>http://localhost:8080/manager/text</url>
<server>my-tomcat</server>
<path>/myRetail</path>
</configuration>
</plugin>
</plugins>
</build>
</project>
It is my understanding that the annotations should pick up the repository and create the bean based off of the #EnableCassandraRepositories annotation. The #Autowired ProductPriceRepository in ProductService.java is always null though when I run this on tomcat. HOWEVER, if I run a junit test against the service call, the bean is properly created, the object is not null, and the tests pass (via #ContextConfiguration annotation).
I've looked at a couple different patterns that I thought might help, but none of them have worked. I can't create an implementation of my interface because Cassandra handles that internally and I'm forced to implement the Cassandra methods.
I feel like something is just slightly off with the annotations somewhere. Any ideas?

The problem is with your pom.xml
For spring-boot Cassandra application, you have to include below dependencies and parent pom in pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency>
</dependencies>

Spring MVC Java based config - JSP not resolving

I am developing a little demo project with Spring MVC on a Tomcat with hibernate and JSPs. The application was working with thymeleaf as a view resolver but I need to rewrite my thymeleaf template as a .JSP. So I needed to reconfig everything. I am also trying to only use annotation configuration files without any xml.
The problem is that I am seeing the source code of my JSP-File without resolving.
The Request-Mapping and the program logic already worked with thymeleaf + spring. I am getting no error messages in the log files. I tried a lot of changes so my config files may be inconsistent at the moment. Any pointers or advice is appreciated.
My config files are below:
MyWebAppInitializer:
public class MyWebAppInitializer implements WebApplicationInitializer {
private static final String CONFIG_LOCATION = "MvcConfiguration";
private static final String MAPPING_URL = "/";#Override
public void onStartup(ServletContext servletContext) throws ServletException {
WebApplicationContext context = getContext();
servletContext.addListener(new ContextLoaderListener(context));
ServletRegistration.Dynamic dispatcher = servletContext.addServlet("DispatcherServlet", new DispatcherServlet(context));
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping(MAPPING_URL);
}
private AnnotationConfigWebApplicationContext getContext() {
AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
context.setConfigLocation(CONFIG_LOCATION);
return context;
}
}
MvcConfiguration:
class MvcConfiguration extends WebMvcConfigurerAdapter {
#Bean
public ViewResolver viewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
BenutzerController:
#Controller
public class BenutzerController {
#Autowired
BenutzerRepository repository;
#ModelAttribute("Benutzer")
public Benutzer loadEmptyModelBean() {
return new Benutzer();
}
#ModelAttribute("userList")
public List < Benutzer > userList() {
return toList(repository.findAll());
}
#RequestMapping("/verwaltung")
public String verwaltung(#RequestParam(value = "message", required = false, defaultValue = "Defaultvalue") String message, ModelMap model) {
model.addAttribute("message", message);
return "verwaltung";
}
pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<name>benutzerverwaltung</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.3.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
EDIT: SOLUTION
editing the pom.xml:
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>8.0.29</version>
</dependency>

Are you using Spring Boot's embedded Tomcat? According to the answer to this question, you may need to add a dependency: compile("org.apache.tomcat.embed:tomcat-embed-jasper"). However, I've never got JSPs to work properly with an embedded tomcat - you can create a war file instead, as it says in the docs.

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