Related
When I worked on my computer at home, it worked well without any errors, but when I downloaded the project to my laptop through git, the error occurred as below.
2022-08-01 00:12:43.419 INFO 25004 --- [ main] c.p.r.mysqlcheck.MySqlConnectionTest : The following 1 profile is active: "config"
***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
2
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (the profiles config are currently active).
I search on google and it saids that this error occur because of wrong data source information.
But I checked data source several times but nothing's wrong.
So I think config profile file is not registered properly.
How can I solve this problem??
I'll show my code below.
application.properties
#Important information will be placed in here
spring.profiles.include=config
## I'm going to hide this file beacause it has personal information
#mybatis mapper location
mybatis.type-aliases-package=com.prac.react.model.dto
mybatis.mapper-locations=classpath:mappers/*.xml
mybatis.configuration.map-underscore-to-camel-case=true
application-config.properties
spring.datasource.url=jdbc:mysql://localhost:3306/kculter?serverTimezone=UTC&allowPublicKeyRetrieval=true
spring.datasource.username=id
spring.datasource.password=1234
##db를 로컬 서버로 돌렸고 username과 pwd는 제 로컬에서 사용하는걸로 변경했습니다.
##db 서버 연결 테스트코드를 위한 변수를 만들었습니다.
mysqlusername=id
pwd=1234
Test Code
#SpringBootTest
public class MySqlConnectionTest {
private final String DRIVER = "com.mysql.jdbc.Driver"; //mysql 드라이버 생성 주소?
private final String URL = "jdbc:mysql://localhost:3306/kculter"; //mysql 주소
#Autowired
Mysql mysql;
Logger logger = LoggerFactory.getLogger(MySqlConnectionTest.class);
#Test
#DisplayName("MySql 연결 확인 테스트")
public void testConnection() throws Exception{
boolean flag = true;
logger.info(mysql.toString());
Class.forName(DRIVER); //위에서의 정보르들을 가지고 해당 driver를 JVM에 등록시키는것
try(Connection con = DriverManager.getConnection(URL,mysql.getUsername(),mysql.getPwd())){
logger.info(con.toString()); //콘솔창에서 연결정보
}catch(Exception e) {
logger.error("연결 실패");
flag = false;
assertTrue(flag);
}
}
}
Mysql.java
package com.prac.react.model.dto;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
#Component
public class Mysql {
#Value("${mysqlusername}")
private String username;
#Value("${pwd}")
private String pwd;
public Mysql() {}
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPwd() {
return this.pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
#Override
public String toString() {
return "{" +
" username='" + getUsername() + "'" +
", pwd='" + getPwd() + "'" +
"}";
}
}
Reason
The JPA auto configuration feature of the spring boot application attempts to establish database connection using JPA Datasource. The JPA DataSource bean requires database driver to connect to a database.
The database driver should be available as a dependency in the pom.xml file. For the external databases such as Oracle, SQL Server, MySql, DB2, Postgres, MongoDB etc requires the database JDBC connection properties to establish the connection.
The in-memory databases such as H2, HSQL, Derby etc will establish a connection without JDBC connection properties as it is part of the spring boot application.
This error happens if you have configured in your pom.xml file the spring-boot-starter-data-jpa dependency and you haven’t defined any datasource url in your application.properties
Solution
I had the same problem, I resolved it by clean install and then doing right click on the project, maven/update project.
If that does not solve your issue then make sure your application.properties contains the complete configuration. Also make sure that your pom.xml file has the JDBC Driver for your DB
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/kculter
spring.datasource.username=id
spring.datasource.password=1234
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
## Hibernate Properties
# The SQL dialect makes Hibernate generate better SQL for the chosen database
I created a new spring boot project using the IntelliJ Idea's spring initializer and checked the Web/Spring reactive Web and the SQL/Spring data R2DBC dependencies.
I also added the the dependency to the R2DBC implementation for MySQL
<dependency>
<groupId>dev.miku</groupId>
<artifactId>r2dbc-mysql</artifactId>
<version>0.8.2.RELEASE</version>
</dependency>
and the java connector
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
Asking the version of the MySQL server from a console with
select version();
I get
8.0.17
The connection factory configuration is like this:
#Configuration
#RequiredArgsConstructor
public class R2dbcConfig extends AbstractR2dbcConfiguration {
#Bean
public ConnectionFactory connectionFactory() {
ConnectionFactoryOptions conf = ConnectionFactoryOptions.builder()
.option(DRIVER, "mysql")
.option(HOST, "the.db.url")
.option(PORT, 33066612)
.option(USER, "myUserName")
.option(PASSWORD, "myPassword")
.option(DATABASE, "aDbName")
.build();
return ConnectionFactories.find(conf);
}
}
Nevertheless, when I run the application I get the following exception
reactor.core.Exceptions$ErrorCallbackNotImplemented: org.springframework.dao.DataAccessResourceFailureException: Failed to obtain R2DBC Connection; nested exception is io.r2dbc.spi.R2dbcNonTransientResourceException: [1193] Unknown system variable 'tx_isolation'
Caused by: org.springframework.dao.DataAccessResourceFailureException: Failed to obtain R2DBC Connection; nested exception is io.r2dbc.spi.R2dbcNonTransientResourceException: [1193] Unknown system variable 'tx_isolation'
Answers to similar questions instructed the asker to update the version of the mysql:mysql-connector-java to 8.+, and according to IntelliJ the versión resolved by maven is 8.0.26.
Curiously, if I remove the connector dependency the result is exactly the same.
So, I debbuged the R2DBC implementation to find out what is happening and I discovered that during the handshake, the dev.miku.r2dbc.mysq.QueryFlow#initHandshake method receives a HandshakeRequest message whose headers tell that the server version is "5.5.30". And that causes the R2DBC implementation to use the old "tx_isolation" system variable name instead of the new "transaction_isolation".
Why?
What am I missing?
https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html says:
The tx_isolation and tx_read_only system variables have been removed. Use transaction_isolation and transaction_read_only instead.
You checked and discovered the server version is 8.0.17. This is more authoritative than the handshake headers message.
I recommend searching your classpath for any leftover jar files with old versions of the connector. You may have both version 8.0.26 of the connector and an older version that hasn't been updated to use the new option names.
Could you solved it? I found that R2dbc mysql driver doesn't get my MySql version, because it has a check of it to ask for tx_isolation or transaction_isolation.
The solution I got was changing the driver to Jasync.
//DB
implementation("com.github.jasync-sql:jasync-r2dbc-mysql:2.0.4")
implementation("io.r2dbc:r2dbc-h2")
implementation("org.springframework.boot:spring-boot-starter-data-r2dbc:2.6.0")
And my config:
#Configuration
#EnableTransactionManagement
#EnableConfigurationProperties(DbPropertiesConfig::class)
class DataSourceConfiguration {
#Configuration
class ProdMySQLConfiguration(#Autowired val dbPropertiesConfig: DbPropertiesConfig) : AbstractR2dbcConfiguration() {
#Bean
override fun connectionFactory(): ConnectionFactory =
JasyncConnectionFactory(MySQLConnectionFactory(
com.github.jasync.sql.db.Configuration(
database = dbPropertiesConfig.db,
port = dbPropertiesConfig.port,
username = dbPropertiesConfig.username,
host = dbPropertiesConfig.host,
password = dbPropertiesConfig.password
)
))
}
}
Taking into consideration I have that DbPropertiesConfig in my yml.
Doc/Example:
Doc
Example
Gitter: https://gitter.im/jasync-sql/support
I am using spring-boot in my web application and use spring-jpa to read/write from/to my database. It works very well but I want to understand how to manage the database connections. Below is my properties configuration for database:
spring.datasource.url=jdbc:mysql://localhost:3306/test?characterEncoding=utf8
spring.datasource.username=user
spring.datasource.password=pwd
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.max-active=500
I have set the maximum connections to 500. When a user makes a request on my spring application, a database connection will be opened for him. After finishing the request, will spring jpa close this connection? If not, when will it close the unused connections?
I have read through the spring jpa reference document from http://docs.spring.io/spring-data/jpa/docs/current/reference/html/. But it doesn't mention anything about the connections.
When using DB connection pooling, a call to sqlconnection.close() will not necessarily close the heavyweight connection to the database, instead most often will just release the connection as re-usable in the pool. That's why it is advisable to invoke the close() on connection as soon as possible when leveraging a client side connection pool.
In your configuration, the pool will contain a maximum number of 500 connections ( it would be also good to configure maxIdle, minIdle, and minEvictableIdleTimeMillis to tune the number of ready-to-use connections and how often to release them when not used).
Some more doc here
You have already found that you can configure this from application.properties
You can find all the possible properties here.
Notice that from Spring Boot 1.4 there are datasource properties for every datasource vendor that spring integrates with, out of the box. There is spring.datasource.dbcp.*,spring.datasource.tomcat.* and so on. See 1.4 docs
If that's not enought, and you need something very specific, you can declare the datasource bean yourself. Here is the example with Tomcat datasource:
#Bean
public DataSource dataSource(){
PoolProperties p = new PoolProperties();
p.setUrl("jdbc:mysql://localhost:3306/mysql");
p.setDriverClassName("com.mysql.jdbc.Driver");
p.setUsername("root");
p.setPassword("password");
p.setJmxEnabled(true);
p.setTestWhileIdle(false);
p.setTestOnBorrow(true);
p.setValidationQuery("SELECT 1");
p.setTestOnReturn(false);
p.setValidationInterval(30000);
p.setTimeBetweenEvictionRunsMillis(30000);
p.setMaxActive(100);
p.setInitialSize(10);
p.setMaxWait(10000);
p.setRemoveAbandonedTimeout(60);
p.setMinEvictableIdleTimeMillis(30000);
p.setMinIdle(10);
p.setLogAbandoned(true);
p.setRemoveAbandoned(true);
p.setJdbcInterceptors(
"org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;"+
"org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer");
DataSource datasource = new DataSource();
datasource.setPoolProperties(p);
return datasource ;
}
I am trying run a spring-boot application which uses hibernate via spring-jpa, but i am getting this error:
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:104)
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:71)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:205)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206)
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:843)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:842)
at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:336)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1613)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550)
... 21 more
my pom.xml file is this:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.8.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-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
</dependency>
</dependencies>
my hibernate configuration is that (the dialect configuration is in the last method from this class):
#Configuration
#EnableTransactionManagement
#ComponentScan({ "com.spring.app" })
public class HibernateConfig {
#Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(restDataSource());
sessionFactory.setPackagesToScan(new String[] { "com.spring.app.model" });
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
#Bean
public DataSource restDataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName("org.postgresql.Driver");
dataSource.setUrl("jdbc:postgresql://localhost:5432/teste?charSet=LATIN1");
dataSource.setUsername("klebermo");
dataSource.setPassword("123");
return dataSource;
}
#Bean
#Autowired
public HibernateTransactionManager transactionManager(SessionFactory sessionFactory) {
HibernateTransactionManager txManager = new HibernateTransactionManager();
txManager.setSessionFactory(sessionFactory);
return txManager;
}
#Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
Properties hibernateProperties() {
return new Properties() {
/**
*
*/
private static final long serialVersionUID = 1L;
{
setProperty("hibernate.hbm2ddl.auto", "create");
setProperty("hibernate.show_sql", "false");
setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
}
};
}
}
what I am doing wrong here?
First remove all of your configuration Spring Boot will start it for you.
Make sure you have an application.properties in your classpath and add the following properties.
spring.datasource.url=jdbc:postgresql://localhost:5432/teste?charSet=LATIN1
spring.datasource.username=klebermo
spring.datasource.password=123
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=create
If you really need access to a SessionFactory and that is basically for the same datasource, then you can do the following (which is also documented here although for XML, not JavaConfig).
#Configuration
public class HibernateConfig {
#Bean
public HibernateJpaSessionFactoryBean sessionFactory(EntityManagerFactory emf) {
HibernateJpaSessionFactoryBean factory = new HibernateJpaSessionFactoryBean();
factory.setEntityManagerFactory(emf);
return factory;
}
}
That way you have both an EntityManagerFactory and a SessionFactory.
UPDATE: As of Hibernate 5 the SessionFactory actually extends the EntityManagerFactory. So to obtain a SessionFactory you can simply cast the EntityManagerFactory to it or use the unwrap method to get one.
public class SomeHibernateRepository {
#PersistenceUnit
private EntityManagerFactory emf;
protected SessionFactory getSessionFactory() {
return emf.unwrap(SessionFactory.class);
}
}
Assuming you have a class with a main method with #EnableAutoConfiguration you don't need the #EnableTransactionManagement annotation, as that will be enabled by Spring Boot for you. A basic application class in the com.spring.app package should be enough.
#Configuration
#EnableAutoConfiguration
#ComponentScan
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
Something like that should be enough to have all your classes (including entities and Spring Data based repositories) detected.
UPDATE: These annotations can be replaced with a single #SpringBootApplication in more recent versions of Spring Boot.
#SpringBootApplication
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
I would also suggest removing the commons-dbcp dependency as that would allow Spring Boot to configure the faster and more robust HikariCP implementation.
I was facing a similar problem when starting up the application (using Spring Boot) with the database server down.
Hibernate can determine the correct dialect to use automatically, but in order to do this, it needs a live connection to the database.
add spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLDialect in application.properties file
I got this error when my database was not created. After creating the DB manually, it worked fine.
I also faced a similar issue. But, it was due to the invalid password provided. Also, I would like to say your code seems to be old-style code using spring. You already mentioned that you are using spring boot, which means most of the things will be auto configured for you. hibernate dialect will be auto selected based on the DB driver available on the classpath along with valid credentials which can be used to test the connection properly. If there is any issue with the connection you will again face the same error. only 3 properties needed in application.properties
# Replace with your connection string
spring.datasource.url=jdbc:mysql://localhost:3306/pdb1
# Replace with your credentials
spring.datasource.username=root
spring.datasource.password=
Remove the redundant Hibernate Configuration
If you're using Spring Boot, you don't need to provide the JPA and Hibernate configuration explicitly, as Spring Boot can do that for you.
Add database configuration properties
In the application.properties Spring Boot configuration file, you have the add your database configuration properties:
spring.datasource.driverClassName = org.postgresql.Driver
spring.datasource.url = jdbc:postgresql://localhost:5432/teste
spring.datasource.username = klebermo
spring.datasource.password = 123
Add Hibernate specific properties
And, in the same application.properties configuration file, you can also set custom Hibernate properties:
# Log SQL statements
spring.jpa.show-sql = false
# Hibernate ddl auto for generating the database schema
spring.jpa.hibernate.ddl-auto = create
# Hibernate database Dialect
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
That's it!
I ran into the same problem and my issue was that the DB I was trying to connect to didn't exist.
I created the DB, verified the URL/connection string and reran and everything worked as expected.
I had same issue. adding this to the application.properties solved the issue:
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQLDialect
The following are some of the reasons for the hibernate.dialect not set issue.
Most of these exceptions are shown in the startup log which is finally followed by the mentioned issue.
Example: In Spring boot app with Postgres DB
1. Check if the database is actually installed and its server is started.
org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
java.net.ConnectException: Connection refused: connect
org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
2. Check if the database name is correctly mentioned.
org.postgresql.util.PSQLException: FATAL: database "foo" does not exist
In application.properties file,
spring.datasource.url = jdbc:postgresql://localhost:5432/foo
but foo didn't exist.
So I created the database from pgAdmin for postgres
CREATE DATABASE foo;
3. Check if the host name and server port is accessible.
org.postgresql.util.PSQLException: Connection to localhost:5431 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
java.net.ConnectException: Connection refused: connect
4. Check if the database credentials are correct.
as #Pankaj mentioned
org.postgresql.util.PSQLException: FATAL: password authentication failed for user "postgres"
spring.datasource.username= {DB USERNAME HERE}
spring.datasource.password= {DB PASSWORD HERE}
In spring boot for jpa java config you need to extend JpaBaseConfiguration and implement it's abstract methods.
#Configuration
public class JpaConfig extends JpaBaseConfiguration {
#Override
protected AbstractJpaVendorAdapter createJpaVendorAdapter() {
final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
return vendorAdapter;
}
#Override
protected Map<String, Object> getVendorProperties() {
Map<String, Object> properties = new HashMap<>();
properties.put("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
}
}
this is happening because your code is not bale to connect the database. Make sure you have mysql driver and username, password correct.
Make sure your application.properties has all correct info: (I changed my db port from 8889 to 3306 it worked)
db.url: jdbc:mysql://localhost:3306/test
It turns out there is no one mentioning set spring.jpa.database=mysql in application.properties file, if you use Spring JPA. This is the simplest answer to me and I want to share in this question.
In my case the user could not connect to the database. If will have same issue if the log contains a warning just before the exception:
WARN HHH000342: Could not obtain connection to query metadata : Login failed for user 'my_user'.
Make sure you have your database in your pom like OP did. That was my problem.
My problem was that embedded database was already connected. close connection
I got this issue when Eclipse was unable to find the JDBC driver. Had to do a gradle refresh from the eclipse to get this work.
I had the same issue and after debugging it turns out that Spring application.properties had wrong IP address for DB server
spring.datasource.url=jdbc:oracle:thin:#WRONG:1521/DEV
If you are using this line:
sessionFactory.getHibernateProperties().put("hibernate.dialect", env.getProperty("hibernate.dialect"));
make sure that env.getProperty("hibernate.dialect") is not null.
Same but in a JBoss WildFly AS.
Solved with properties in my META-INF/persistence.xml
<properties>
<property name="hibernate.transaction.jta.platform"
value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform" />
<property name="spring.jpa.database-platform" value="org.hibernate.dialect.PostgreSQLDialect" />
<property name="spring.jpa.show-sql" value="false" />
</properties>
For those working with AWS MySQL RDS, it may occur when you are unable to connect to the database. Go to AWS Security Groups setting for MySQL RDS and edit the inbound IP rule by refreshing MyIP.
I faced this issue and doing above got the problem fixed for me.
I also had this problem. In my case it was because of no grants were assigned to MySQL user. Assigning grants to MySQL user which my app uses resolved the issue:
grant select, insert, delete, update on my_db.* to 'my_user'#'%';
Adding spring.jpa.database-platform=org.hibernate.dialect.MariaDB53Dialect to my properties file worked for me.
PS: i'm using MariaDB
I reproduced this error message in the following three cases:
There does not exist database user with username written in application.properties file or persistence.properties file or, as in your case, in HibernateConfig file
The deployed database has that user but user is identified by different password than that in one of above files
The database has that user and the passwords match but that user does not have all privileges needed to accomplish all database tasks that your spring-boot app does
The obvious solution is to create new database user with the same username and password as in the spring-boot app or change username and password in your spring-boot app files to match an existing database user and grant sufficient privileges to that database user. In case of MySQL database this can be done as shown below:
mysql -u root -p
>CREATE USER 'theuser'#'localhost' IDENTIFIED BY 'thepassword';
>GRANT ALL ON *.* to theuser#localhost IDENTIFIED BY 'thepassword';
>FLUSH PRIVILEGES;
Obviously there are similar commands in Postgresql but I haven't tested if in case of Postgresql this error message can be reproduced in these three cases.
I had the same issue and it was caused by being unable to connect to the database instance. Look for hibernate error HHH000342 in the log above that error, it should give you an idea to where the db connection is failing (incorrect username/pass, url, etc.)
This happened to me because I hadn't added the conf.configure(); before beginning the session:
Configuration conf = new Configuration();
conf.configure();
Make sure that you have enter valid detail in application.properties and whether your database server is available. As a example when you are connecting with MySQL check whether XAMPP is running properly.
I faced the same issue: The db I was trying to connect did not exist. I used jpa.database=default (which I guess means it will try to connect to the database and then auto select the dialect). Once I started the database, it worked fine without any change.
I faced this issue due to Mysql 8.0.11 version reverting back to 5.7 solved for me
I had the same error after using the hibernate code generation
https://www.mkyong.com/hibernate/how-to-generate-code-with-hibernate-tools/
then the hibernate.cfg.xml was created in /src/main/java
but without the connection parameters
after removing it - my problem was solved
I am trying run a spring-boot application which uses hibernate via spring-jpa, but i am getting this error:
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:104)
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:71)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:205)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206)
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:843)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:842)
at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:336)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1613)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1550)
... 21 more
my pom.xml file is this:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.8.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-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
</dependency>
</dependencies>
my hibernate configuration is that (the dialect configuration is in the last method from this class):
#Configuration
#EnableTransactionManagement
#ComponentScan({ "com.spring.app" })
public class HibernateConfig {
#Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(restDataSource());
sessionFactory.setPackagesToScan(new String[] { "com.spring.app.model" });
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
#Bean
public DataSource restDataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName("org.postgresql.Driver");
dataSource.setUrl("jdbc:postgresql://localhost:5432/teste?charSet=LATIN1");
dataSource.setUsername("klebermo");
dataSource.setPassword("123");
return dataSource;
}
#Bean
#Autowired
public HibernateTransactionManager transactionManager(SessionFactory sessionFactory) {
HibernateTransactionManager txManager = new HibernateTransactionManager();
txManager.setSessionFactory(sessionFactory);
return txManager;
}
#Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
Properties hibernateProperties() {
return new Properties() {
/**
*
*/
private static final long serialVersionUID = 1L;
{
setProperty("hibernate.hbm2ddl.auto", "create");
setProperty("hibernate.show_sql", "false");
setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
}
};
}
}
what I am doing wrong here?
First remove all of your configuration Spring Boot will start it for you.
Make sure you have an application.properties in your classpath and add the following properties.
spring.datasource.url=jdbc:postgresql://localhost:5432/teste?charSet=LATIN1
spring.datasource.username=klebermo
spring.datasource.password=123
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=create
If you really need access to a SessionFactory and that is basically for the same datasource, then you can do the following (which is also documented here although for XML, not JavaConfig).
#Configuration
public class HibernateConfig {
#Bean
public HibernateJpaSessionFactoryBean sessionFactory(EntityManagerFactory emf) {
HibernateJpaSessionFactoryBean factory = new HibernateJpaSessionFactoryBean();
factory.setEntityManagerFactory(emf);
return factory;
}
}
That way you have both an EntityManagerFactory and a SessionFactory.
UPDATE: As of Hibernate 5 the SessionFactory actually extends the EntityManagerFactory. So to obtain a SessionFactory you can simply cast the EntityManagerFactory to it or use the unwrap method to get one.
public class SomeHibernateRepository {
#PersistenceUnit
private EntityManagerFactory emf;
protected SessionFactory getSessionFactory() {
return emf.unwrap(SessionFactory.class);
}
}
Assuming you have a class with a main method with #EnableAutoConfiguration you don't need the #EnableTransactionManagement annotation, as that will be enabled by Spring Boot for you. A basic application class in the com.spring.app package should be enough.
#Configuration
#EnableAutoConfiguration
#ComponentScan
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
Something like that should be enough to have all your classes (including entities and Spring Data based repositories) detected.
UPDATE: These annotations can be replaced with a single #SpringBootApplication in more recent versions of Spring Boot.
#SpringBootApplication
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
I would also suggest removing the commons-dbcp dependency as that would allow Spring Boot to configure the faster and more robust HikariCP implementation.
I was facing a similar problem when starting up the application (using Spring Boot) with the database server down.
Hibernate can determine the correct dialect to use automatically, but in order to do this, it needs a live connection to the database.
add spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLDialect in application.properties file
I got this error when my database was not created. After creating the DB manually, it worked fine.
I also faced a similar issue. But, it was due to the invalid password provided. Also, I would like to say your code seems to be old-style code using spring. You already mentioned that you are using spring boot, which means most of the things will be auto configured for you. hibernate dialect will be auto selected based on the DB driver available on the classpath along with valid credentials which can be used to test the connection properly. If there is any issue with the connection you will again face the same error. only 3 properties needed in application.properties
# Replace with your connection string
spring.datasource.url=jdbc:mysql://localhost:3306/pdb1
# Replace with your credentials
spring.datasource.username=root
spring.datasource.password=
Remove the redundant Hibernate Configuration
If you're using Spring Boot, you don't need to provide the JPA and Hibernate configuration explicitly, as Spring Boot can do that for you.
Add database configuration properties
In the application.properties Spring Boot configuration file, you have the add your database configuration properties:
spring.datasource.driverClassName = org.postgresql.Driver
spring.datasource.url = jdbc:postgresql://localhost:5432/teste
spring.datasource.username = klebermo
spring.datasource.password = 123
Add Hibernate specific properties
And, in the same application.properties configuration file, you can also set custom Hibernate properties:
# Log SQL statements
spring.jpa.show-sql = false
# Hibernate ddl auto for generating the database schema
spring.jpa.hibernate.ddl-auto = create
# Hibernate database Dialect
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
That's it!
I ran into the same problem and my issue was that the DB I was trying to connect to didn't exist.
I created the DB, verified the URL/connection string and reran and everything worked as expected.
I had same issue. adding this to the application.properties solved the issue:
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQLDialect
The following are some of the reasons for the hibernate.dialect not set issue.
Most of these exceptions are shown in the startup log which is finally followed by the mentioned issue.
Example: In Spring boot app with Postgres DB
1. Check if the database is actually installed and its server is started.
org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
java.net.ConnectException: Connection refused: connect
org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
2. Check if the database name is correctly mentioned.
org.postgresql.util.PSQLException: FATAL: database "foo" does not exist
In application.properties file,
spring.datasource.url = jdbc:postgresql://localhost:5432/foo
but foo didn't exist.
So I created the database from pgAdmin for postgres
CREATE DATABASE foo;
3. Check if the host name and server port is accessible.
org.postgresql.util.PSQLException: Connection to localhost:5431 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
java.net.ConnectException: Connection refused: connect
4. Check if the database credentials are correct.
as #Pankaj mentioned
org.postgresql.util.PSQLException: FATAL: password authentication failed for user "postgres"
spring.datasource.username= {DB USERNAME HERE}
spring.datasource.password= {DB PASSWORD HERE}
In spring boot for jpa java config you need to extend JpaBaseConfiguration and implement it's abstract methods.
#Configuration
public class JpaConfig extends JpaBaseConfiguration {
#Override
protected AbstractJpaVendorAdapter createJpaVendorAdapter() {
final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
return vendorAdapter;
}
#Override
protected Map<String, Object> getVendorProperties() {
Map<String, Object> properties = new HashMap<>();
properties.put("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
}
}
this is happening because your code is not bale to connect the database. Make sure you have mysql driver and username, password correct.
Make sure your application.properties has all correct info: (I changed my db port from 8889 to 3306 it worked)
db.url: jdbc:mysql://localhost:3306/test
It turns out there is no one mentioning set spring.jpa.database=mysql in application.properties file, if you use Spring JPA. This is the simplest answer to me and I want to share in this question.
In my case the user could not connect to the database. If will have same issue if the log contains a warning just before the exception:
WARN HHH000342: Could not obtain connection to query metadata : Login failed for user 'my_user'.
Make sure you have your database in your pom like OP did. That was my problem.
My problem was that embedded database was already connected. close connection
I got this issue when Eclipse was unable to find the JDBC driver. Had to do a gradle refresh from the eclipse to get this work.
I had the same issue and after debugging it turns out that Spring application.properties had wrong IP address for DB server
spring.datasource.url=jdbc:oracle:thin:#WRONG:1521/DEV
If you are using this line:
sessionFactory.getHibernateProperties().put("hibernate.dialect", env.getProperty("hibernate.dialect"));
make sure that env.getProperty("hibernate.dialect") is not null.
Same but in a JBoss WildFly AS.
Solved with properties in my META-INF/persistence.xml
<properties>
<property name="hibernate.transaction.jta.platform"
value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform" />
<property name="spring.jpa.database-platform" value="org.hibernate.dialect.PostgreSQLDialect" />
<property name="spring.jpa.show-sql" value="false" />
</properties>
For those working with AWS MySQL RDS, it may occur when you are unable to connect to the database. Go to AWS Security Groups setting for MySQL RDS and edit the inbound IP rule by refreshing MyIP.
I faced this issue and doing above got the problem fixed for me.
I also had this problem. In my case it was because of no grants were assigned to MySQL user. Assigning grants to MySQL user which my app uses resolved the issue:
grant select, insert, delete, update on my_db.* to 'my_user'#'%';
Adding spring.jpa.database-platform=org.hibernate.dialect.MariaDB53Dialect to my properties file worked for me.
PS: i'm using MariaDB
I reproduced this error message in the following three cases:
There does not exist database user with username written in application.properties file or persistence.properties file or, as in your case, in HibernateConfig file
The deployed database has that user but user is identified by different password than that in one of above files
The database has that user and the passwords match but that user does not have all privileges needed to accomplish all database tasks that your spring-boot app does
The obvious solution is to create new database user with the same username and password as in the spring-boot app or change username and password in your spring-boot app files to match an existing database user and grant sufficient privileges to that database user. In case of MySQL database this can be done as shown below:
mysql -u root -p
>CREATE USER 'theuser'#'localhost' IDENTIFIED BY 'thepassword';
>GRANT ALL ON *.* to theuser#localhost IDENTIFIED BY 'thepassword';
>FLUSH PRIVILEGES;
Obviously there are similar commands in Postgresql but I haven't tested if in case of Postgresql this error message can be reproduced in these three cases.
I had the same issue and it was caused by being unable to connect to the database instance. Look for hibernate error HHH000342 in the log above that error, it should give you an idea to where the db connection is failing (incorrect username/pass, url, etc.)
This happened to me because I hadn't added the conf.configure(); before beginning the session:
Configuration conf = new Configuration();
conf.configure();
Make sure that you have enter valid detail in application.properties and whether your database server is available. As a example when you are connecting with MySQL check whether XAMPP is running properly.
I faced the same issue: The db I was trying to connect did not exist. I used jpa.database=default (which I guess means it will try to connect to the database and then auto select the dialect). Once I started the database, it worked fine without any change.
I faced this issue due to Mysql 8.0.11 version reverting back to 5.7 solved for me
I had the same error after using the hibernate code generation
https://www.mkyong.com/hibernate/how-to-generate-code-with-hibernate-tools/
then the hibernate.cfg.xml was created in /src/main/java
but without the connection parameters
after removing it - my problem was solved