以编程方式配置 Hibernate - 无法创建请求的服务 [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]答案

【问题标题】：Configuring Hibernate programmatically - Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]以编程方式配置 Hibernate - 无法创建请求的服务 [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
【发布时间】：2017-12-30 04:38:43
【问题描述】：

我想使用以下代码以编程方式创建一个新的 SessionFactory：

    private static void createSessionFactory() {
    try {
        Configuration conf = new Configuration();
        conf.setProperty("hibernate.connection.driver_class", "com.mysql.jdbc.Driver");
        conf.setProperty("hibernate.connection.url", "jdbc:mysql://localhost:3306/database?zeroDateTimeBehavior=convertToNull");
        conf.setProperty("hibernate.connection.username", "root");
        conf.setProperty("hibernate.connection.password", "toor");
        conf.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
        conf.setProperty("hibernate.show_sql", "false");
        conf.setProperty("hibernate.hbm2ddl.auto", "update");
        conf.setProperty("hibernate.current_session_context_class", "thread");
//Added 2 annotated classes.
        conf.addAnnotatedClass(webtest.Category.class)
                .addAnnotatedClass(webtest.Question.class)
        SessionFactory.sessionFactory = conf.buildSessionFactory();
    } catch (HibernateException excp) {
        System.out.println("Error: " + excp);
    }
}

在最后一行 (SessionFactory.sessionFactory = conf.buildSessionFactory()) 应用程序抛出：

Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]

Mysql server 工作正常，log 和密码都OK。我检查了 .JAR，我认为一切正常。

谢谢。

------- 编辑新数据 -------- 我添加 Hibernate 日志输出：

jul 24, 2017 7:41:08 PM org.hibernate.Version logVersion INFO: HHH000412: 
Hibernate Core {5.2.10.Final} jul 24, 2017 7:41:08 PM  
org.hibernate.cfg.Environment <clinit> INFO: HHH000206: hibernate.properties 
not found

一旦执行第一行：

Configuration conf = new Configuration();

---------------- 使用堆栈跟踪编辑 ----------

org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:271)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
    at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418)
    at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691)
    at bbddgestor.SessionFactory.createSessionFactory(SessionFactory.java:52)
    at bbddgestor.SessionFactory.<clinit>(SessionFactory.java:19)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at bbddgestor.BBDDController.openSession(BBDDController.java:30)
    at main.Main.JSONCONSULTADOR(Main.java:52)
    at main.Main.main(Main.java:47)
Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator$1$1.convert(BasicConnectionCreator.java:105)
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.convertSqlException(BasicConnectionCreator.java:123)
    at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:41)
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:58)
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections.addConnections(PooledConnections.java:123)
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:42)
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:20)
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections$Builder.build(PooledConnections.java:161)
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:109)
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:72)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259)
    ... 19 more
Caused by: java.sql.SQLException: The server time zone value 'Hora de verano romance' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:545)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:513)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:505)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:479)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:489)
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:69)
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1606)
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:633)
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:347)
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:219)
    at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:38)
    ... 34 more
Caused by: com.mysql.cj.core.exceptions.InvalidConnectionAttributeException: The server time zone value 'Hora de verano romance' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at com.mysql.cj.core.exceptions.ExceptionFactory.createException(ExceptionFactory.java:54)
    at com.mysql.cj.core.exceptions.ExceptionFactory.createException(ExceptionFactory.java:73)
    at com.mysql.cj.jdbc.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:118)
    at com.mysql.cj.mysqla.MysqlaSession.configureTimezone(MysqlaSession.java:293)
    at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:2399)
    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:1739)
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1596)
    ... 38 more

------- 用 POM.XML 编辑 -------

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.webtest</groupId>
    <artifactId>GestorBBDD</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>5.2.10.Final</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->

        <dependency> 
            <groupId>mysql</groupId> 
            <artifactId>mysql-connector-java</artifactId> 
            <version>6.0.3</version> 
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-xml</artifactId>
            <version>2.8.1</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-entitymanager</artifactId>
            <version>5.0.8.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-osgi</artifactId>
            <version>5.0.8.Final</version>
        </dependency>
    </dependencies>

</project>

【问题讨论】：

你使用的是什么版本的休眠？
我尝试了 5.2.10
你可以试试这个，看看有什么不同 ************ ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder() .applySettings(configuration.getProperties()).build( ); sessionFactory = 配置 .buildSessionFactory(serviceRegistry);
感谢您的快速回复。我试过了，同样的错误在sessionFactory = conf.buildSessionFactory(serviceRegistry);
请尝试使用更新版本的MYSQL------ mysqlmysql-connector-java6.0. 3

标签： java mysql hibernate

【解决方案1】：

请尝试使用更新版本的 MYSQL 或至少更改您的 MYSQL jar 版本

 <dependency> 
    <groupId>mysql</groupId> 
    <artifactId>mysql-connector-java</artifactId> 
    <version>6.0.3</version> 
    </dependency>

【讨论】：

【解决方案2】：

格式化所有内容并重新安装我的计算机时，我没有注意到 MySQL 版本并下载了最后一个可用的版本。

我克隆了我的项目并开始犯错误。我遇到了同样的错误，并按照 Joseph 建议的步骤操作。

我会尝试在这里查看事实，看看是否有人可以提供帮助。

这是第一个：

Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver # connect

我想了想，司机的问题。我没有连接本地“jdbc:mysql://localhost:3306/mydb”，而是尝试连接到另一台 PC，将连接 URL 更改为“jdbc:mysql://192.168.1.5: 3306/mydb”，我得到了错误：

Host is not allowed to connect to this mysql server

我正在更新 mysql 连接器版本。我从 6.03 开始，然后是 6.0.6，依此类推。根据 (https://github.com/dbeaver/dbeaver/issues/1042)，我能够识别出这个新版本使用了强密码系统

由于我已经安装了，我选择删除 root 用户并再次添加它，但是通过命令行并使用默认密码系统，根据 https://www.spigotmc.org/threads/mysql-errors-unable -to-load-authentication-plugin-caching_sha2_password。 304616 /

更新连接器时，我不得不将“hibernate.connection.driver_class”属性更新为“com.mysql.cj.jdbc.Driver”

这样，又出现了一些错误：

Caused by: java.sql.SQLException: Unknown system variable 'query_cache_size'

然后我将 maven 升级到了最新版本的连接器。他继续提出错误：

Caused by: java.lang.ClassNotFoundException: Could not load requested class: com.mysql.jdbc.Driver

在Hibernate - ClassNotFoundException: com.mysql.jdbc.Driver 之后，我添加了一个外部 JAR。

最后连时区也出问题了

The server time zone value 'official time of Brazil' is unrecognized or represents more than one time zone. You must configure either the server or the JDBC driver (via the serverTimezone configuration property) to use a specific time zone value if you want to use time zone support.

有了https://en.stackoverflow.com/questions/128873/erro-ao-execute-hibernate这里的提示，我更改了连接网址，终于成功了。

歌剧总结：

属性改变

public class HibernateConnector {

    private static HibernateConnector me;
    private Configuration cfg;
    private SessionFactory sessionFactory;

    private HibernateConnector () throws HibernateException {

        cfg = new Configuration ();
      
        cfg.setProperty ("hibernate.connection.driver_class", "com.mysql.cj.jdbc.Driver");
        cfg.setProperty ("hibernate.connection.url", "jdbc: mysql: // localhost: 3306 / mydatabase? useTimezone = true & serverTimezone = UTC");
        cfg.setProperty ("hibernate.connection.username", "root");
        cfg.setProperty ("hibernate.connection.password", "myPassword");
        cfg.setProperty ("hibernate.show_sql", "true");
        cfg.setProperty ("hibernate.hbm2ddl.auto", "update");

        cfg.addAnnotatedClass (myPackage.MyClass.class);

        sessionFactory = cfg.buildSessionFactory ();
    }
}

添加了外部 JAR。 [编辑]项目运行后，我删除了 JAR 并且工作正常。[/编辑]

POM.xml 中的 E

<dependency>
<groupId> mysql </groupId>
<artifactId> mysql-connector-java </artifactId>
<version> 8.0.11 </version>
</dependency>

所以，它奏效了。我希望它可以帮助某人。

【讨论】：

【解决方案3】：

这是 MYSQL 和 C/J (mysql-connector-java) 之间的版本兼容问题

尝试升级您的 C/J。具体版本可以参考here。

【讨论】：