无法在 Wildfly 上使用 Hibernate 创建 Postgresql table
Unable to create Postgresql table using Hibernate on Wildfly
我正在使用 Wildfly 9.0.2、Postgresql 9.5、Hibernate 5.1。0.Final、Java JDK 1.7.0_79
这是我的persistence.xml
<persistence 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_2_0.xsd"
version="2.0">
<persistence-unit name="com.example.flow.persistence.jpa" transaction-type="RESOURCE_LOCAL">
<description>Flow Persistence Unit</description>
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.archive.autodetection" value="class" />
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
<property name="hibernate.connection.driver_class" value="org.postgresql.Driver" />
<property name="hibernate.connection.url" value="jdbc:postgresql://localhost:5431/test_db" />
<property name="hibernate.connection.username" value="postgres" />
<property name="hibernate.connection.password" value="password" />
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.flushMode" value="FLUSH_AUTO" />
<property name="hibernate.hbm2ddl.auto" value="validate" />
</properties>
</persistence-unit>
</persistence>
这是我的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.example</groupId>
<artifactId>flow</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Flow</name>
<description>To catch cockroach</description>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.2.4.Final</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.4.1208.jre6</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
和一个 User.java 实体 class
package my.com.oguniform.flow.model;
import javax.persistence.Entity;
import java.io.Serializable;
import javax.persistence.Table;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Column;
import javax.persistence.Version;
@Entity
@Table(name = "app_user")
public class User implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", updatable = false, nullable = false)
private Long id;
@Version
@Column(name = "version")
private int version;
public Long getId() {
return this.id;
}
public void setId(final Long id) {
this.id = id;
}
public int getVersion() {
return this.version;
}
public void setVersion(final int version) {
this.version = version;
}
@Override
public String toString() {
String result = getClass().getSimpleName() + " ";
if (id != null)
result += "id: " + id;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof User)) {
return false;
}
User other = (User) obj;
if (id != null) {
if (!id.equals(other.id)) {
return false;
}
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
}
部署后，出现此错误：
17:01:33,822 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 171) WFLYUT0022: Unregistered web context: /flow
17:01:33,835 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0011: Stopping Persistence Unit (phase 2 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,841 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0011: Stopping Persistence Unit (phase 1 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,863 INFO [org.jboss.as.server.deployment] (MSC service thread 1-5) WFLYSRV0028: Stopped deployment flow.war (runtime-name: flow.war) in 45ms
17:01:33,865 INFO [org.jboss.as.server.deployment] (MSC service thread 1-4) WFLYSRV0027: Starting deployment of "flow.war" (runtime-name: "flow.war")
17:01:33,943 INFO [org.jboss.as.jpa] (MSC service thread 1-4) WFLYJPA0002: Read persistence.xml for com.example.flow.persistence.jpa
17:01:33,964 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0010: Starting Persistence Unit (phase 1 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,964 INFO [org.hibernate.jpa.internal.util.LogHelper] (ServerService Thread Pool -- 172) HHH000204: Processing PersistenceUnitInfo [
name: com.example.flow.persistence.jpa
...]
17:01:33,994 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0010: Starting Persistence Unit (phase 2 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,997 INFO [org.hibernate.dialect.Dialect] (ServerService Thread Pool -- 172) HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
17:01:34,000 INFO [org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory] (ServerService Thread Pool -- 172) HHH000397: Using ASTQueryTranslatorFactory
17:01:34,009 INFO [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000229: Running schema validator
17:01:34,009 INFO [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000102: Fetching database metadata
17:01:34,009 ERROR [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000319: Could not get database metadata: org.h2.jdbc.JdbcSQLException: Table "PG_CLASS" not found; SQL statement:
select relname from pg_class where relkind='S' [42102-173]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:331)
at org.h2.message.DbException.get(DbException.java:171)
at org.h2.message.DbException.get(DbException.java:148)
at org.h2.command.Parser.readTableOrView(Parser.java:4864)
at org.h2.command.Parser.readTableFilter(Parser.java:1107)
at org.h2.command.Parser.parseSelectSimpleFromPart(Parser.java:1713)
at org.h2.command.Parser.parseSelectSimple(Parser.java:1821)
at org.h2.command.Parser.parseSelectSub(Parser.java:1707)
at org.h2.command.Parser.parseSelectUnion(Parser.java:1550)
at org.h2.command.Parser.parseSelect(Parser.java:1538)
at org.h2.command.Parser.parsePrepared(Parser.java:405)
at org.h2.command.Parser.parse(Parser.java:279)
at org.h2.command.Parser.parse(Parser.java:251)
at org.h2.command.Parser.prepareCommand(Parser.java:218)
at org.h2.engine.Session.prepareLocal(Session.java:428)
at org.h2.engine.Session.prepareCommand(Session.java:377)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1138)
at org.h2.jdbc.JdbcStatement.executeQuery(JdbcStatement.java:72)
at org.jboss.jca.adapters.jdbc.WrappedStatement.executeQuery(WrappedStatement.java:381)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.initSequences(DatabaseMetadata.java:178)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.<init>(DatabaseMetadata.java:92)
at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:168)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:525)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:857)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:154)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:117)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:665)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:182)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
17:01:34,010 ERROR [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000300: Could not complete schema validation: org.h2.jdbc.JdbcSQLException: Table "PG_CLASS" not found; SQL statement:
select relname from pg_class where relkind='S' [42102-173]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:331)
at org.h2.message.DbException.get(DbException.java:171)
at org.h2.message.DbException.get(DbException.java:148)
at org.h2.command.Parser.readTableOrView(Parser.java:4864)
at org.h2.command.Parser.readTableFilter(Parser.java:1107)
at org.h2.command.Parser.parseSelectSimpleFromPart(Parser.java:1713)
at org.h2.command.Parser.parseSelectSimple(Parser.java:1821)
at org.h2.command.Parser.parseSelectSub(Parser.java:1707)
at org.h2.command.Parser.parseSelectUnion(Parser.java:1550)
at org.h2.command.Parser.parseSelect(Parser.java:1538)
at org.h2.command.Parser.parsePrepared(Parser.java:405)
at org.h2.command.Parser.parse(Parser.java:279)
at org.h2.command.Parser.parse(Parser.java:251)
at org.h2.command.Parser.prepareCommand(Parser.java:218)
at org.h2.engine.Session.prepareLocal(Session.java:428)
at org.h2.engine.Session.prepareCommand(Session.java:377)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1138)
at org.h2.jdbc.JdbcStatement.executeQuery(JdbcStatement.java:72)
at org.jboss.jca.adapters.jdbc.WrappedStatement.executeQuery(WrappedStatement.java:381)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.initSequences(DatabaseMetadata.java:178)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.<init>(DatabaseMetadata.java:92)
at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:168)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:525)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:857)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:154)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:117)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:665)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:182)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
17:01:34,011 WARN [org.hibernate.internal.SessionFactoryImpl] (ServerService Thread Pool -- 172) HHH000008: JTASessionContext being used with JDBCTransactionFactory; auto-flush will not operate correctly with getCurrentSession()
17:01:34,025 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 173) WFLYUT0021: Registered web context: /flow
17:01:34,135 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) WFLYSRV0016: Replaced deployment "flow.war" with deployment "flow.war"
17:01:34,135 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) WFLYCTL0183: Service status report
WFLYCTL0186: Services which failed to start: service jboss.serverManagement.controller.management.http: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service
这就是我感到困惑的地方。我已经设置了 postgres 驱动程序等，但在错误日志中，我看到 Wildfly 尝试使用 h2 驱动程序进行连接。
如果我将 hbm2ddl.auto 更改为 'create'，我可以在日志中看到创建了 table 'app_user'，但没有出现在我的 postgresql table，所以我怀疑它是在 H2 中创建的。
请帮忙。
您需要将 postgresql jdbc 驱动程序作为模块和数据源添加到 Wildfly，因为 Wildfly 没有开箱即用。
您可以使用 wildfly bin 目录中的 wildfly 命令行执行此操作：
./jboss-cli.sh
然后添加模块：
module add --name=org.postgres --resources=/tmp/postgresql-9.3-1101.jdbc41.jar --dependencies=javax.api,javax.transaction.api
然后在服务器上安装驱动：
/subsystem=datasources/jdbc-driver=postgres:add(driver-name="postgres",driver-module-name="org.postgres",driver-class-name=org.postgresql.Driver)
然后配置数据源：注意这一步有JNDI名字需要匹配你的persistence.xml.
data-source add --jndi-name=java:/PostGreDS --name=PostgrePool --connection-url=jdbc:postgresql://localhost/postgres --driver-name=postgres --user-name=postgres --password=postgres
测试完成后，您可以根据此参考和教程进行一些调整：
Configuring a datasource with PostgreSQL and JBoss/WildFly.
另请参阅：
更新：您还需要更新 persistence.xml 才能使用 Container Managed Datasource:
<persistence-unit name="prod" transaction-type="JTA">
<jta-data-source>jdbc/sample</jta-data-source>
应用程序与容器管理之间的区别 EntityManager。由于您要部署到容器 (Wildfly)，因此您希望使用容器管理的 EntityManager。参考：Container vs Application Managed EntityManager
首先关注pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>com.crossover</groupId>
<artifactId>compiler-web-application</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<version.jboss.bom>10.0.0.Final</version.jboss.bom>
<version.wildfly.maven.plugin>1.0.2.Final</version.wildfly.maven.plugin>
<version.war.plugin>2.1.1</version.war.plugin>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.wildfly.bom</groupId>
<artifactId>wildfly-javaee7-with-tools</artifactId>
<version>${version.jboss.bom}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.annotation</groupId>
<artifactId>jboss-annotations-api_1.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.ws.rs</groupId>
<artifactId>jboss-jaxrs-api_2.0_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.ejb</groupId>
<artifactId>jboss-ejb-api_3.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<scope>provided</scope>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.faces</groupId>
<artifactId>jboss-jsf-api_2.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<!-- HELPERS -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.12.2</version>
</dependency>
<!-- TESTES -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
<!-- Primefaces + FileUpload -->
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>6.0</version>
</dependency>
<dependency>
<groupId>org.primefaces.extensions</groupId>
<artifactId>primefaces-extensions</artifactId>
<version>6.0.0</version>
</dependency>
<dependency>
<groupId>org.primefaces.themes</groupId>
<artifactId>bootstrap</artifactId>
<version>1.0.10</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>${version.war.plugin}</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>${version.wildfly.maven.plugin}</version>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>apache.snapshots</id>
<name>Apache Maven Snapshot Repository</name>
<url>http://people.apache.org/repo/m2-snapshot-repository</url>
</repository>
<repository>
<id>prime-repo</id>
<name>PrimeFaces Maven Repository</name>
<url>http://repository.primefaces.org</url>
<layout>default</layout>
</repository>
</repositories>
<!--If want use openshift -->
<!--<profiles>-->
<!--<profile>-->
<!--<id>openshift</id>-->
<!--<build>-->
<!--<plugins>-->
<!--<plugin>-->
<!--<artifactId>maven-war-plugin</artifactId>-->
<!--<version>${version.war.plugin}</version>-->
<!--<configuration>-->
<!--<outputDirectory>deployments</outputDirectory>-->
<!--<warName>ROOT</warName>-->
<!--</configuration>-->
<!--</plugin>-->
<!--</plugins>-->
<!--</build>-->
<!--</profile>-->
<!--</profiles>-->
- 现在你需要配置postgresql
为此：
- 下载模块的 de jar（示例：postgresql-9.4.1209.jre6.jar）
- 在您的 wildfly 中添加新模块：
创建目录 postgresql/main/
/wildfly-10.0.0.Final/modules/system/layers/base/org/postgresql/main/
-- 在文件里面创建module.xml
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.3" name="org.postgresql">
<resources>
<resource-root path="postgresql-9.4.1209.jre6.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
-- 现在在 standalone.xml 文件中添加新的配置。
/wildfly/wildfly-10.0.0.Final/standalone/configuration/standalone.xml
<datasource jndi-name="java:jboss/datasources/PostgresDS" pool-name="PostgresDS" enabled="true" use-java-context="true">
<connection-url>jdbc:postgresql://localhost:5432/dbname</connection-url>
<driver>postgresql</driver>
<transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
<pool>
<min-pool-size>5</min-pool-size>
<max-pool-size>30</max-pool-size>
<prefill>true</prefill>
<use-strict-min>false</use-strict-min>
<flush-strategy>FailingConnectionOnly</flush-strategy>
</pool>
<security>
<user-name>postgres</user-name>
<password>root</password>
</security>
<statement>
<prepared-statement-cache-size>32</prepared-statement-cache-size>
</statement>
</datasource>
-- 将驱动添加到同一个文件中：
<driver name="postgresql" module="org.postgres">
<xa-datasource-class>org.postgresql.Driver</xa-datasource-class>
</driver>
-- 您的 persistence.xml 将是：
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/persistence"
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="compilerPU" transaction-type="JTA">
<description>uptake pu</description>
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<jta-data-source>java:jboss/datasources/PostgresDS</jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode>
<!--<!– provedor/implementacao do JPA –>-->
<!--<provider>org.hibernate.ejb.HibernatePersistence</provider>-->
<!--<!– entidade mapeada –>-->
<!--<class>model.User</class>-->
<properties>
<property name="hibernate.transaction.flush_before_completion" value="true"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL9Dialect"/>
<property name="hibernate.cache.use_second_level_cache" value="true"/>
<property name="hibernate.cache.use_query_cache" value="true"/>
<property name="hibernate.jdbc.batch_size" value="50"/>
<property name="hibernate.max_fetch_depth" value="0"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.format_sql" value="true"/>
<!-- se for dar lazy vai buscar separamente -->
<property name="hibernate.enable_lazy_load_no_trans" value="true"/>
</properties>
</persistence-unit>
</persistence>
重要提示：持久性需要在应用程序的 META-INF 目录中。
我正在使用 Wildfly 9.0.2、Postgresql 9.5、Hibernate 5.1。0.Final、Java JDK 1.7.0_79
这是我的persistence.xml
<persistence 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_2_0.xsd"
version="2.0">
<persistence-unit name="com.example.flow.persistence.jpa" transaction-type="RESOURCE_LOCAL">
<description>Flow Persistence Unit</description>
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.archive.autodetection" value="class" />
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
<property name="hibernate.connection.driver_class" value="org.postgresql.Driver" />
<property name="hibernate.connection.url" value="jdbc:postgresql://localhost:5431/test_db" />
<property name="hibernate.connection.username" value="postgres" />
<property name="hibernate.connection.password" value="password" />
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.flushMode" value="FLUSH_AUTO" />
<property name="hibernate.hbm2ddl.auto" value="validate" />
</properties>
</persistence-unit>
</persistence>
这是我的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.example</groupId>
<artifactId>flow</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Flow</name>
<description>To catch cockroach</description>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.2.4.Final</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.4.1208.jre6</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
和一个 User.java 实体 class
package my.com.oguniform.flow.model;
import javax.persistence.Entity;
import java.io.Serializable;
import javax.persistence.Table;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Column;
import javax.persistence.Version;
@Entity
@Table(name = "app_user")
public class User implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", updatable = false, nullable = false)
private Long id;
@Version
@Column(name = "version")
private int version;
public Long getId() {
return this.id;
}
public void setId(final Long id) {
this.id = id;
}
public int getVersion() {
return this.version;
}
public void setVersion(final int version) {
this.version = version;
}
@Override
public String toString() {
String result = getClass().getSimpleName() + " ";
if (id != null)
result += "id: " + id;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof User)) {
return false;
}
User other = (User) obj;
if (id != null) {
if (!id.equals(other.id)) {
return false;
}
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
}
部署后，出现此错误：
17:01:33,822 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 171) WFLYUT0022: Unregistered web context: /flow
17:01:33,835 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0011: Stopping Persistence Unit (phase 2 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,841 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0011: Stopping Persistence Unit (phase 1 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,863 INFO [org.jboss.as.server.deployment] (MSC service thread 1-5) WFLYSRV0028: Stopped deployment flow.war (runtime-name: flow.war) in 45ms
17:01:33,865 INFO [org.jboss.as.server.deployment] (MSC service thread 1-4) WFLYSRV0027: Starting deployment of "flow.war" (runtime-name: "flow.war")
17:01:33,943 INFO [org.jboss.as.jpa] (MSC service thread 1-4) WFLYJPA0002: Read persistence.xml for com.example.flow.persistence.jpa
17:01:33,964 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0010: Starting Persistence Unit (phase 1 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,964 INFO [org.hibernate.jpa.internal.util.LogHelper] (ServerService Thread Pool -- 172) HHH000204: Processing PersistenceUnitInfo [
name: com.example.flow.persistence.jpa
...]
17:01:33,994 INFO [org.jboss.as.jpa] (ServerService Thread Pool -- 172) WFLYJPA0010: Starting Persistence Unit (phase 2 of 2) Service 'flow.war#com.example.flow.persistence.jpa'
17:01:33,997 INFO [org.hibernate.dialect.Dialect] (ServerService Thread Pool -- 172) HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
17:01:34,000 INFO [org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory] (ServerService Thread Pool -- 172) HHH000397: Using ASTQueryTranslatorFactory
17:01:34,009 INFO [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000229: Running schema validator
17:01:34,009 INFO [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000102: Fetching database metadata
17:01:34,009 ERROR [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000319: Could not get database metadata: org.h2.jdbc.JdbcSQLException: Table "PG_CLASS" not found; SQL statement:
select relname from pg_class where relkind='S' [42102-173]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:331)
at org.h2.message.DbException.get(DbException.java:171)
at org.h2.message.DbException.get(DbException.java:148)
at org.h2.command.Parser.readTableOrView(Parser.java:4864)
at org.h2.command.Parser.readTableFilter(Parser.java:1107)
at org.h2.command.Parser.parseSelectSimpleFromPart(Parser.java:1713)
at org.h2.command.Parser.parseSelectSimple(Parser.java:1821)
at org.h2.command.Parser.parseSelectSub(Parser.java:1707)
at org.h2.command.Parser.parseSelectUnion(Parser.java:1550)
at org.h2.command.Parser.parseSelect(Parser.java:1538)
at org.h2.command.Parser.parsePrepared(Parser.java:405)
at org.h2.command.Parser.parse(Parser.java:279)
at org.h2.command.Parser.parse(Parser.java:251)
at org.h2.command.Parser.prepareCommand(Parser.java:218)
at org.h2.engine.Session.prepareLocal(Session.java:428)
at org.h2.engine.Session.prepareCommand(Session.java:377)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1138)
at org.h2.jdbc.JdbcStatement.executeQuery(JdbcStatement.java:72)
at org.jboss.jca.adapters.jdbc.WrappedStatement.executeQuery(WrappedStatement.java:381)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.initSequences(DatabaseMetadata.java:178)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.<init>(DatabaseMetadata.java:92)
at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:168)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:525)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:857)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:154)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:117)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:665)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:182)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
17:01:34,010 ERROR [org.hibernate.tool.hbm2ddl.SchemaValidator] (ServerService Thread Pool -- 172) HHH000300: Could not complete schema validation: org.h2.jdbc.JdbcSQLException: Table "PG_CLASS" not found; SQL statement:
select relname from pg_class where relkind='S' [42102-173]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:331)
at org.h2.message.DbException.get(DbException.java:171)
at org.h2.message.DbException.get(DbException.java:148)
at org.h2.command.Parser.readTableOrView(Parser.java:4864)
at org.h2.command.Parser.readTableFilter(Parser.java:1107)
at org.h2.command.Parser.parseSelectSimpleFromPart(Parser.java:1713)
at org.h2.command.Parser.parseSelectSimple(Parser.java:1821)
at org.h2.command.Parser.parseSelectSub(Parser.java:1707)
at org.h2.command.Parser.parseSelectUnion(Parser.java:1550)
at org.h2.command.Parser.parseSelect(Parser.java:1538)
at org.h2.command.Parser.parsePrepared(Parser.java:405)
at org.h2.command.Parser.parse(Parser.java:279)
at org.h2.command.Parser.parse(Parser.java:251)
at org.h2.command.Parser.prepareCommand(Parser.java:218)
at org.h2.engine.Session.prepareLocal(Session.java:428)
at org.h2.engine.Session.prepareCommand(Session.java:377)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1138)
at org.h2.jdbc.JdbcStatement.executeQuery(JdbcStatement.java:72)
at org.jboss.jca.adapters.jdbc.WrappedStatement.executeQuery(WrappedStatement.java:381)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.initSequences(DatabaseMetadata.java:178)
at org.hibernate.tool.hbm2ddl.DatabaseMetadata.<init>(DatabaseMetadata.java:92)
at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:168)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:525)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:857)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:154)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:117)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:665)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:182)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
17:01:34,011 WARN [org.hibernate.internal.SessionFactoryImpl] (ServerService Thread Pool -- 172) HHH000008: JTASessionContext being used with JDBCTransactionFactory; auto-flush will not operate correctly with getCurrentSession()
17:01:34,025 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 173) WFLYUT0021: Registered web context: /flow
17:01:34,135 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) WFLYSRV0016: Replaced deployment "flow.war" with deployment "flow.war"
17:01:34,135 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) WFLYCTL0183: Service status report
WFLYCTL0186: Services which failed to start: service jboss.serverManagement.controller.management.http: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service
这就是我感到困惑的地方。我已经设置了 postgres 驱动程序等，但在错误日志中，我看到 Wildfly 尝试使用 h2 驱动程序进行连接。
如果我将 hbm2ddl.auto 更改为 'create'，我可以在日志中看到创建了 table 'app_user'，但没有出现在我的 postgresql table，所以我怀疑它是在 H2 中创建的。
请帮忙。
您需要将 postgresql jdbc 驱动程序作为模块和数据源添加到 Wildfly，因为 Wildfly 没有开箱即用。
您可以使用 wildfly bin 目录中的 wildfly 命令行执行此操作：
./jboss-cli.sh
然后添加模块：
module add --name=org.postgres --resources=/tmp/postgresql-9.3-1101.jdbc41.jar --dependencies=javax.api,javax.transaction.api
然后在服务器上安装驱动：
/subsystem=datasources/jdbc-driver=postgres:add(driver-name="postgres",driver-module-name="org.postgres",driver-class-name=org.postgresql.Driver)
然后配置数据源：注意这一步有JNDI名字需要匹配你的persistence.xml.
data-source add --jndi-name=java:/PostGreDS --name=PostgrePool --connection-url=jdbc:postgresql://localhost/postgres --driver-name=postgres --user-name=postgres --password=postgres
测试完成后，您可以根据此参考和教程进行一些调整：
Configuring a datasource with PostgreSQL and JBoss/WildFly.
另请参阅：
更新：您还需要更新 persistence.xml 才能使用 Container Managed Datasource:
<persistence-unit name="prod" transaction-type="JTA">
<jta-data-source>jdbc/sample</jta-data-source>
应用程序与容器管理之间的区别 EntityManager。由于您要部署到容器 (Wildfly)，因此您希望使用容器管理的 EntityManager。参考：Container vs Application Managed EntityManager
首先关注pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0
<groupId>com.crossover</groupId>
<artifactId>compiler-web-application</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<version.jboss.bom>10.0.0.Final</version.jboss.bom>
<version.wildfly.maven.plugin>1.0.2.Final</version.wildfly.maven.plugin>
<version.war.plugin>2.1.1</version.war.plugin>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.wildfly.bom</groupId>
<artifactId>wildfly-javaee7-with-tools</artifactId>
<version>${version.jboss.bom}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.annotation</groupId>
<artifactId>jboss-annotations-api_1.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.ws.rs</groupId>
<artifactId>jboss-jaxrs-api_2.0_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.ejb</groupId>
<artifactId>jboss-ejb-api_3.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<scope>provided</scope>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.faces</groupId>
<artifactId>jboss-jsf-api_2.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<!-- HELPERS -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.12.2</version>
</dependency>
<!-- TESTES -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
<!-- Primefaces + FileUpload -->
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>6.0</version>
</dependency>
<dependency>
<groupId>org.primefaces.extensions</groupId>
<artifactId>primefaces-extensions</artifactId>
<version>6.0.0</version>
</dependency>
<dependency>
<groupId>org.primefaces.themes</groupId>
<artifactId>bootstrap</artifactId>
<version>1.0.10</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>${version.war.plugin}</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>${version.wildfly.maven.plugin}</version>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>apache.snapshots</id>
<name>Apache Maven Snapshot Repository</name>
<url>http://people.apache.org/repo/m2-snapshot-repository</url>
</repository>
<repository>
<id>prime-repo</id>
<name>PrimeFaces Maven Repository</name>
<url>http://repository.primefaces.org</url>
<layout>default</layout>
</repository>
</repositories>
<!--If want use openshift -->
<!--<profiles>-->
<!--<profile>-->
<!--<id>openshift</id>-->
<!--<build>-->
<!--<plugins>-->
<!--<plugin>-->
<!--<artifactId>maven-war-plugin</artifactId>-->
<!--<version>${version.war.plugin}</version>-->
<!--<configuration>-->
<!--<outputDirectory>deployments</outputDirectory>-->
<!--<warName>ROOT</warName>-->
<!--</configuration>-->
<!--</plugin>-->
<!--</plugins>-->
<!--</build>-->
<!--</profile>-->
<!--</profiles>-->
- 现在你需要配置postgresql
为此：
- 下载模块的 de jar（示例：postgresql-9.4.1209.jre6.jar）
- 在您的 wildfly 中添加新模块： 创建目录 postgresql/main/
/wildfly-10.0.0.Final/modules/system/layers/base/org/postgresql/main/
-- 在文件里面创建module.xml
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.3" name="org.postgresql">
<resources>
<resource-root path="postgresql-9.4.1209.jre6.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
-- 现在在 standalone.xml 文件中添加新的配置。
/wildfly/wildfly-10.0.0.Final/standalone/configuration/standalone.xml
<datasource jndi-name="java:jboss/datasources/PostgresDS" pool-name="PostgresDS" enabled="true" use-java-context="true">
<connection-url>jdbc:postgresql://localhost:5432/dbname</connection-url>
<driver>postgresql</driver>
<transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
<pool>
<min-pool-size>5</min-pool-size>
<max-pool-size>30</max-pool-size>
<prefill>true</prefill>
<use-strict-min>false</use-strict-min>
<flush-strategy>FailingConnectionOnly</flush-strategy>
</pool>
<security>
<user-name>postgres</user-name>
<password>root</password>
</security>
<statement>
<prepared-statement-cache-size>32</prepared-statement-cache-size>
</statement>
</datasource>
-- 将驱动添加到同一个文件中：
<driver name="postgresql" module="org.postgres">
<xa-datasource-class>org.postgresql.Driver</xa-datasource-class>
</driver>
-- 您的 persistence.xml 将是：
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/persistence"
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="compilerPU" transaction-type="JTA">
<description>uptake pu</description>
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<jta-data-source>java:jboss/datasources/PostgresDS</jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode>
<!--<!– provedor/implementacao do JPA –>-->
<!--<provider>org.hibernate.ejb.HibernatePersistence</provider>-->
<!--<!– entidade mapeada –>-->
<!--<class>model.User</class>-->
<properties>
<property name="hibernate.transaction.flush_before_completion" value="true"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL9Dialect"/>
<property name="hibernate.cache.use_second_level_cache" value="true"/>
<property name="hibernate.cache.use_query_cache" value="true"/>
<property name="hibernate.jdbc.batch_size" value="50"/>
<property name="hibernate.max_fetch_depth" value="0"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.format_sql" value="true"/>
<!-- se for dar lazy vai buscar separamente -->
<property name="hibernate.enable_lazy_load_no_trans" value="true"/>
</properties>
</persistence-unit>
</persistence>
重要提示：持久性需要在应用程序的 META-INF 目录中。