Caused by: java.lang.ClassNotFoundException: DemoApplication - java

I created a new Spring application from https://start.srping.io
My build.gradle
plugins {
id 'java'
id 'org.springframework.boot' version '2.7.5'
id 'io.spring.dependency-management' version '1.0.15.RELEASE'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '19'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-security'
implementation 'org.springframework.boot:spring-boot-starter-web'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
testImplementation 'org.springframework.security:spring-security-test'
}
tasks.named('test') {
useJUnitPlatform()
}
File DemoApplication.java
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
I press button Run, the program error. How to fix it?

Looks like project dependencies mentioned in build.gradle file not downloaded properly because I can see some compilation errors as well.
Please run this command and try again.
gradle build

Related

build.gradle cannot resolve symbol 'groovy.json.JsonSlurper'

I can't resolve the groovy.json.JsonSlurper in the build.gradle file with Intellij, does anyone know how to fix it?
plugins {
id 'java'
}
group 'org.example'
version '1.0-SNAPSHOT'
repositories {
mavenCentral()
}
dependencies {
testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
}
test {
useJUnitPlatform()
}
task sample() {
doLast {
sample();
}
}
import groovy.json.JsonSlurper
def sample(){
def json = new JsonSlurper().parseText('{"a":"b"}')
println(json);
}
You missing the needed dependency.
Add org.codehaus.groovy:groovy-json:3.0.9 in dependencies section so ti will look like
dependencies {
testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
implementation 'org.codehaus.groovy:groovy-json:3.0.9'
}
And then you can test with CLI as gradle sample or ./gradlew sample and it will return {a=b}

Getting a ClassNotFound exception when using mongotemplate

I am getting the following exception when running a spring boot application that uses the mongo template:
Caused by: java.lang.ClassNotFoundException: org.springframework.data.mongodb.MongoDatabaseFactory
This is the main code:
package com.example.redismongo.mongodb;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.mongodb.config.EnableMongoAuditing;
import org.springframework.data.mongodb.core.MongoTemplate;
#Configuration
#EnableMongoAuditing
public class MongoConfiguration {
#Bean
public MongoClient mongo(){
return MongoClients.create("mongodb://localhost:27017");
}
#Primary
#Bean(name = "mongoTemplate")
public MongoTemplate mongoTemplate(){
return new MongoTemplate(mongo(), "test");
}
}
plugins {
id 'org.springframework.boot' version '2.4.2'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation group: 'org.springframework.data', name: 'spring-data-commons', version: '2.2.8.RELEASE'
implementation group: 'org.springframework.data', name: 'spring-data-mongodb', version: '2.2.8.RELEASE'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}
I need to test the 2.2.8 version as that is the version that is being used at work. I am trying to test some of its functionality in my pc to test certain fail scenarios. How can I make 2.2.8 work?
Try adding spring-boot-starter-data-mongodb instead of spring-data-mongodb.

JOOQ Doesn't Generate

I was following here. I used postgresql instead of h2. I was able to build the project with some additional fields.
I created a package database under com.example.demo, but it was still empty after project was built.
build.gradle:
buildscript {
ext {
springBootVersion = '2.4.2'
}
repositories {
mavenLocal()
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
classpath 'org.jooq:jooq-codegen:3.14.4'
classpath 'org.postgresql:postgresql:42.2.18'
}
}
apply plugin: 'java'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '15'
repositories {
mavenLocal()
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-jdbc'
implementation 'org.springframework.boot:spring-boot-starter-jooq'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.flywaydb:flyway-core'
runtimeOnly 'org.postgresql:postgresql'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}
import org.jooq.codegen.GenerationTool
import org.jooq.meta.jaxb.*
task generate {
def configuration = new Configuration()
configuration
.withJdbc(new Jdbc()
.withDriver('org.postgresql.Driver')
.withUrl('jdbc:postgresql://localhost:5432/vertx')
.withUser('postgres')
.withPassword('postgres'))
.withGenerator(new Generator()
.withDatabase(new Database().withInputSchema('public'))
.withGenerate(new Generate()
.withPojos(true)
.withDaos(true))
.withTarget(new Target()
.withPackageName('com.example.demo.database')
.withDirectory('src/main/java')))
doLast {
GenerationTool.generate(configuration)
}
}
Is there something I am missing? Why can I not see pojos and daos in database package? My database has only one table with 2 columns.
BUILD SUCCESSFULL when I type ./gradlew generate, but nothing gets generated.
You can try ./gradlew generate --info command, which will give you more information about the build process.
My gradle script is quite similar to yours. By using above command, I find out that the classes are actually generated, but in a different folder /Users/{MyUserName}/.gradle/daemon/7.1.1/src/main/java.
So I have to explicitly set the output directory with def outputDirectory = projectDir.toString() + '/src/main/java'.
This works for me
buildscript {
repositories {
mavenLocal()
mavenCentral()
}
dependencies {
classpath 'org.jooq:jooq-codegen:3.16.2'
classpath 'mysql:mysql-connector-java:8.0.27'
}
}
plugins {
id 'org.springframework.boot' version '2.6.2'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
if(JavaVersion.current() != JavaVersion.VERSION_11){
throw new GradleException("This build must be run with java 11")
}
repositories {
mavenCentral()
}
group = 'snorlax'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
//create a fat Jar with all dependencies
jar {
duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
from {
configurations.compileClasspath.collect { it.isDirectory() ? it : zipTree(it) }
}
manifest {
attributes "Main-Class": "com.snorlax.userservice.MainApplication"
}
}
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
dependencies {
// Spring boot
implementation 'org.springframework.boot:spring-boot-starter-actuator'
implementation 'org.springframework.boot:spring-boot-starter-web'
developmentOnly 'org.springframework.boot:spring-boot-devtools'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
// Swagger
implementation group: 'io.springfox', name: 'springfox-swagger2', version: '2.9.2'
implementation group: 'io.springfox', name: 'springfox-swagger-ui', version: '2.9.2'
// Lombok
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
// RDS Connection
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
runtimeOnly 'mysql:mysql-connector-java:8.0.27'
// AWS secretes manager
implementation 'com.amazonaws.secretsmanager:aws-secretsmanager-jdbc:1.0.6'
// JOOQ
implementation 'org.springframework.boot:spring-boot-starter-jooq'
implementation 'org.jooq:jooq-meta:3.16.2'
compileOnly 'org.jooq:jooq-codegen:3.16.2'
}
test {
useJUnitPlatform()
}
/************************
jooq code generation
*************************/
import org.jooq.codegen.GenerationTool;
import org.jooq.meta.jaxb.*;
task generate {
def outputDirectory = projectDir.toString() + '/src/main/java'
def configuration = new Configuration()
.withJdbc(new Jdbc()
.withDriver('com.mysql.cj.jdbc.Driver')
.withUrl('jdbc:mysql://127.0.0.1:3306/snorlaxRds')
.withUser('root')
.withPassword('123456'))
.withGenerator(new Generator()
.withDatabase(new Database().withInputSchema("snorlaxRds"))
.withGenerate(new Generate()
.withPojos(true)
.withDaos(true))
.withTarget(new Target()
.withPackageName('snorlax.userservice.database')
.withDirectory(outputDirectory)));
doLast {
GenerationTool.generate(configuration)
}
}
Your file looks okay. I had a similar issue (while using maven). Try three things (that worked for me):
check case of the schema in "withInputSchema" property. Try to pass uppercase PUBLIC.
try to change 'src/main/java' to './src/main/java'
add "includes" and pass .* in it (to generate for all tables in the schema)

A component required a bean named 'org.springframework.boot.context.internalConfigurationPropertiesBinder' that could not be found

I have a spring boot multi-module project with Gradle. While running the application i am getting the below error:-
Description:
A component required a bean named 'org.springframework.boot.context.internalConfigurationPropertiesBinder' that could not be found.
Action:
Consider defining a bean named 'org.springframework.boot.context.internalConfigurationPropertiesBinder' in your configuration.
The project has a root project which has a subproject 'GetAssociationService'
rootproject - build.gradle
plugins {
id 'org.springframework.boot' version '2.2.5.RELEASE'
id 'io.spring.dependency-management' version '1.0.9.RELEASE'
id 'java'
id 'com.github.johnrengelman.shadow' version '5.2.0'
}
bootJar { enabled = false }
jar { enabled = true }
subprojects {
group = 'org.qmetech'
version = '1.0.0'
sourceCompatibility = '1.8'
targetCompatibility = '1.8'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'com.github.johnrengelman.shadow'
apply plugin: 'java'
}
repositories { mavenCentral ( ) }
ext { set ( 'springCloudVersion' , "Hoxton.SR3" ) }
dependencies {
testImplementation ( 'org.springframework.boot:spring-boot-starter-test' ) {
exclude group: 'org.junit.vintage' , module: 'junit-vintage-engine'
}
}
ext.libraries = [
commonlibraries: [ 'org.springframework.boot:spring-boot-starter:2.2.5.RELEASE' ,
'org.springframework.cloud:spring-cloud-function-context' ,
'org.springframework.cloud:spring-cloud-function-adapter-aws:2.0.1.RELEASE' ,
'com.amazonaws:aws-lambda-java-log4j:1.0.0' ,
'org.springframework.boot:spring-boot-starter-web:2.2.5.RELEASE' ,
'org.springframework.cloud:spring-cloud-starter-function-web:1.0.0.RELEASE' ,
'org.springframework.boot.experimental:spring-boot-thin-layout:1.0.11.RELEASE' ,
'org.springframework.boot:spring-boot-starter-data-mongodb:2.2.5.RELEASE',
'org.springframework.cloud:spring-cloud-function-compiler:2.0.0.RELEASE'] ,
]
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
}
}
test { useJUnitPlatform ( ) }
ChildProject - build.gradle
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
mavenCentral()
}
springBoot {
mainClassName = 'org.qmetech.GetAssociationService'
}
dependencies {
dependencies {
compile libraries.commonlibraries
implementation 'org.springframework.boot:spring-boot-starter-data-mongodb'
}
}
UserRepository.java
package org.qmetech.repository;
import org.qmetech.domain.User;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
#Repository
public interface UserRepository extends MongoRepository<User, Integer> { }
AssociationService.java
package org.qmetech.service;
import org.qmetech.domain.User;
import org.qmetech.repository.UserRepository;
import org.springframework.stereotype.Component;
import java.util.List;
import java.util.function.Function;
#Component
public class AssociationService implements Function<String, List<User>> {
private final UserRepository userRepository;
public AssociationService(UserRepository userRepository) {
this.userRepository = userRepository;
}
#Override
public List<User> apply(String uppercaseRequest) {
List<User> users = userRepository.findAll();
return users;
}
}
The Complete Code can be found here - https://github.com/iftekharkhan09/Services
Can Anyone please tell me what am I doing wrong?
Thanks!
I also had this problem and in my case, there was the problem in 'org.springframework.boot' version. I changed my version to 2.1.6 Release. Then the problem resolved.
Please verify your pom.xml and make sure you are using the matching version of the Spring boot framework for Spring Cloud.
e.g. For Spring Cloud Greenwich you will need Spring boot 2.1.x
Here is Spring cloud documentation : https://spring.io/projects/spring-cloud
Revisit section : Release Trains

Springboot war in tomcat not working

I'm trying to deploy a war generated with springboot in Tomcat, in which I have succeeded previously, but can't figure out what is wrong this time.
The most important code is added:
config/AppConfig
#Configuration
#EnableTransactionManagement
#Component
//#EnableWebMvc
#ComponentScan("com.singleuseapps")
public class AppConfig {
LaptopsApplication
#SpringBootApplication
#ComponentScan(basePackageClasses = {AppConfig.class,LaptopsApplication.class})
public class LaptopsApplication extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(LaptopsApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(LaptopsApplication.class, args);
}
build.gradle
buildscript {
ext {
springBootVersion = '1.4.2.RELEASE'
}
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'
apply plugin: 'idea'
apply plugin: 'war'
springBoot{
executable = true
}
jar {
baseName = 'laptops'
}
war {
baseName = 'laptops'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
compile('org.springframework.boot:spring-boot-starter-web')
compile("org.springframework.boot:spring-boot-starter-data-jpa")
compile 'org.hibernate:hibernate-core:5.0.9.Final'
compile("com.h2database:h2")
testCompile('org.springframework.boot:spring-boot-starter-test')
compile 'javax.servlet:javax.servlet-api:3.1.0'
compile 'org.javassist:javassist:3.15.0-GA'
compile 'mysql:mysql-connector-java:5.1.31'
compile 'commons-dbcp:commons-dbcp:1.4'
compile('org.springframework.boot:spring-boot-starter-jdbc')
providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
compileOnly "org.projectlombok:lombok:1.16.10"
compile "io.springfox:springfox-swagger2:2.6.0"
compile 'io.springfox:springfox-swagger-ui:2.6.0'
compile 'com.sun.mail:javax.mail'
compile( 'org.springframework.boot:spring-boot-starter-mail')
}
Hope someone gets why I failed.
[edit]
Line in catalina.out
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.singleuseapps.LaptopsApplication]; nested exception is java.io.FileNotFoundException: class path resource [com/singleuseapps/cart/TestMailController.class] cannot be opened because it does not exist
You should:
remove #Component from AppConfig (it's already annotated with #Configuration)
remove .configure method from LaptopsApplication, it's already annotated with #SpringBootApplication and is automatically a configuration class you don't need to add it again
Ensure your controller class is in the package specified by your two #ComponentScan annotations (you probably just need the one on your main app class)

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