WildFly + Hibernate [英] WildFly + Hibernate
问题描述
我一直在努力配置Hibernate并在WildFly上运行它。
I've been struggling for days with configuring Hibernate and run it on WildFly.
这是我的代码:
META-INF / persistence.xml
META-INF/persistence.xml
<persistence version="1.0"
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="blog" transaction-type="JTA">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<properties>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/blog?createDatabaseIfNotExist=true"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.username" value="abc"/>
<property name="hibernate.connection.password" value="abc"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
<property name="hibernate.hbm2ddl.auto" value="create"/>
<property name="hibernate.show_sql" value="true"/>
<property name="jboss.as.jpa.providerModule" value="org.hibernate:5.0"/>
</properties>
</persistence-unit>
pom.xml
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.2.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
</dependencies>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
用户:
@Entity
@Table(name = "users")
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
@Column(name = "username")
private String username;
@Column(name = "password")
private String password;
@OneToMany(mappedBy = "user")
private Set<Post> posts;
}
当我加载主页面时,没有创建数据库。
When I load my main page no database is created.
此外我想坚持用户。
@Stateless
public class UserRepositoryImpl implements UserRepository {
@PersistenceContext(unitName = "blog")
private EntityManager entityManager;
public void create(User user) {
this.entityManager.persist(user);
}
}
没有创建数据库且实体管理器为空。我需要配置什么才能使其运行?
我正在使用IntelliJ进行测试。
No database is created and the entity manager is null. What do I need to configure to make it run? I am using IntelliJ for testing.
推荐答案
JTA数据源由jpa容器管理(在wildfly内部)。
您必须在standalone.xml中定义url,username和password。
搜索数据源子系统< subsystem xmlns =urn:jboss:domain:datasources:4.0>
并添加数据源定义,例如:
A JTA datasource is managed by the jpa container (inside wildfly).
You must define the url, username, password in the standalone.xml.
Search for the datasources subsystem <subsystem xmlns="urn:jboss:domain:datasources:4.0">
and add a datasource definition, for example:
<datasource jta="true" jndi-name="java:/jdbc/myDS" pool-name="MyDS" enabled="true" use-java-context="true" use-ccm="true">
<connection-url>jdbc:mysql://localhost:3306/blog</connection-url>
<driver>mysqldriver.jar</driver>
<security>
<user-name>username</user-name>
<password>password</password>
</security>
</datasource>
接下来,您必须为数据库驱动程序创建一个模块。有关详细信息,请查看文档: https://docs.jboss.org/author / display / WFLY8 / DataSource + configuration
Next you have to create a module for your database driver. For the details check the documentation: https://docs.jboss.org/author/display/WFLY8/DataSource+configuration
然后你的persistence.xml将如下所示:
Then your persistence.xml will look like this:
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
version="2.1">
<persistence-unit name="blog">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<jta-data-source>jdbc/myDS</jta-data-source>
<properties>
<property name="hibernate.archive.autodetection" value="class" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
<property name="hibernate.hbm2ddl.auto" value="create"/>
<property name="hibernate.show_sql" value="true"/>
</properties>
</persistence-unit>
</persistence>
在服务器和组件开始时监视异常。
During server and component start watch for exceptions.
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