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无法打开Hibernate Session进行事务处理;嵌套异常是org.hibernate.exception.JDBCConnectionException：无法打开连接

2017-02-18 184 views
3

我是Spring-MVC和Hibernate的新手。尝试使用Spring-MVC（4.0.3）,休眠（4.3.5）并使用MySQL作为后端来创建测试Web应用程序。无法打开Hibernate Session进行事务处理;嵌套异常是org.hibernate.exception.JDBCConnectionException：无法打开连接

连接到数据库时没有问题，因为我尝试使用简单的JDBC连接语句从示例testJavaClass中的同一个数据库获取数据，并且我能够获取记录。

错误日志：

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Could not open connection 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973) 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:620) 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:727) 

root cause 

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Could not open connection 
org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:515) 
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) 
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:420) 
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:257) 
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
com.sun.proxy.$Proxy130.listPersons(Unknown Source) 
com.journeldev.spring.PersonController.listPersons(PersonController.java:29) 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
java.lang.reflect.Method.invoke(Method.java:606) 
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) 
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) 
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:620) 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

这里是我的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>org.raju.spring</groupId> 
    <artifactId>spring-mvc-hibernate</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <packaging>war</packaging> 

    <properties> 
    <java-version>1.7</java-version> 
    <org.springframework-version>4.0.3.RELEASE</org.springframework-version> 
    <org.aspectj-version>1.7.4</org.aspectj-version> 
    <org.slf4j-version>1.7.5</org.slf4j-version> 
    <hibernate.version>4.3.5.Final</hibernate.version> 
</properties> 

<dependencies> 
    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-context</artifactId> 
     <version>${org.springframework-version}</version> 
     <exclusions> 
      <!-- Exclude Commons Logging in favor of SLF4j --> 
      <exclusion> 
       <groupId>commons-logging</groupId> 
       <artifactId>commons-logging</artifactId> 
      </exclusion> 
     </exclusions> 
    </dependency> 

    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-webmvc</artifactId> 
     <version>${org.springframework-version}</version> 
    </dependency> 

    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-tx</artifactId> 
     <version>${org.springframework-version}</version> 
    </dependency> 

    <dependency> 
     <groupId>org.hibernate</groupId> 
     <artifactId>hibernate-core</artifactId> 
     <version>${hibernate.version}</version> 
    </dependency> 

    <dependency> 
     <groupId>org.hibernate</groupId> 
     <artifactId>hibernate-entitymanager</artifactId> 
     <version>${hibernate.version}</version> 
    </dependency> 

    <!-- Apache Commons DBCP --> 
    <dependency> 
     <groupId>commons-dbcp</groupId> 
     <artifactId>commons-dbcp</artifactId> 
     <version>1.4</version> 
    </dependency> 

    <!-- Spring ORM --> 
    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-orm</artifactId> 
     <version>${org.springframework-version}</version> 
    </dependency> 

    <!-- AspectJ --> 
    <dependency> 
     <groupId>org.aspectj</groupId> 
     <artifactId>aspectjrt</artifactId> 
     <version>${org.aspectj-version}</version> 
    </dependency> 

    <!-- Logging --> 
    <dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-api</artifactId> 
     <version>${org.slf4j-version}</version> 
    </dependency> 

    <dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>jcl-over-slf4j</artifactId> 
     <version>${org.slf4j-version}</version> 
     <scope>runtime</scope> 
    </dependency> 

    <dependency> 
     <groupId>org.slf4j</groupId> 
     <artifactId>slf4j-log4j12</artifactId> 
     <version>${org.slf4j-version}</version> 
     <scope>runtime</scope> 
    </dependency> 

    <dependency> 
     <groupId>log4j</groupId> 
     <artifactId>log4j</artifactId> 
     <version>1.2.15</version> 
     <exclusions> 
      <exclusion> 
       <groupId>javax.mail</groupId> 
       <artifactId>mail</artifactId> 
      </exclusion> 
      <exclusion> 
       <groupId>javax.jms</groupId> 
       <artifactId>jms</artifactId> 
      </exclusion> 
      <exclusion> 
       <groupId>com.sun.jdmk</groupId> 
       <artifactId>jmxtools</artifactId> 
      </exclusion> 
      <exclusion> 
       <groupId>com.sun.jmx</groupId> 
       <artifactId>jmxri</artifactId> 
      </exclusion> 
     </exclusions> 
     <scope>runtime</scope> 
    </dependency> 

    <!-- @Inject --> 
    <dependency> 
     <groupId>javax.inject</groupId> 
     <artifactId>javax.inject</artifactId> 
     <version>1</version> 
    </dependency> 

    <!-- Servlet --> 
    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>servlet-api</artifactId> 
     <version>2.5</version> 
     <scope>provided</scope> 
    </dependency> 

    <dependency> 
     <groupId>javax.servlet.jsp</groupId> 
     <artifactId>jsp-api</artifactId> 
     <version>2.1</version> 
     <scope>provided</scope> 
    </dependency> 

    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>jstl</artifactId> 
     <version>1.2</version> 
    </dependency> 

    <!-- Test --> 
    <dependency> 
     <groupId>junit</groupId> 
     <artifactId>junit</artifactId> 
     <version>4.7</version> 
     <scope>test</scope> 
    </dependency> 

    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> 
    <dependency> 
     <groupId>mysql</groupId> 
     <artifactId>mysql-connector-java</artifactId> 
     <version>5.1.6</version> 
    </dependency> 

</dependencies> 

<build> 
    <plugins> 
     <plugin> 
      <artifactId>maven-eclipse-plugin</artifactId> 
       <version>2.9</version> 
       <configuration> 
        <additionalProjectnatures> 
         <projectnature>org.springframework.ide.eclipse.core.springnature</projectnature> 
        </additionalProjectnatures> 
        <additionalBuildcommands> 
         <buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand> 
        </additionalBuildcommands> 
        <downloadSources>true</downloadSources> 
        <downloadJavadocs>true</downloadJavadocs> 
       </configuration> 
     </plugin> 
     <plugin> 
      <groupId>org.apache.maven.plugins</groupId> 
      <artifactId>maven-compiler-plugin</artifactId> 
      <version>2.5.1</version> 
      <configuration> 
       <source>1.6</source> 
       <target>1.6</target> 
       <compilerArgument>-Xlint:all</compilerArgument> 
       <showWarnings>true</showWarnings> 
       <showDeprecation>true</showDeprecation> 
      </configuration> 
     </plugin> 
     <plugin> 
      <groupId>org.codehaus.mojo</groupId> 
      <artifactId>exec-maven-plugin</artifactId> 
      <version>1.2.1</version> 
      <configuration> 
       <mainClass>org.test.int1.Main</mainClass> 
      </configuration> 
     </plugin> 
    </plugins> 
    <finalName>${project.artifactId}</finalName> 
    </build> 
    </project>

项目结构在Eclipse：

enter image description here

的servlet-context.xml中：（更新根据@Maciej Kowalski的回答，我仍然看到相同的问题）

<?xml version="1.0" encoding="UTF-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" 
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 
xmlns:aop="http://www.springframework.org/schema/aop" 
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd 
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd 
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> 

<!-- DispatcherServlet Context: defines this servlet's request-processing 
    infrastructure --> 

<!-- Enables the Spring MVC @Controller programming model --> 
<annotation-driven /> 

<!-- Handles HTTP GET requests for /resources/** by efficiently serving 
    up static resources in the ${webappRoot}/resources directory --> 
<resources mapping="/resources/**" location="/resources/" /> 

<!-- Resolves views selected for rendering by @Controllers to .jsp resources 
    in the /WEB-INF/views directory --> 
<beans:bean 
    class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
    <beans:property name="prefix" value="/WEB-INF/views/" /> 
    <beans:property name="suffix" value=".jsp" /> 
</beans:bean> 

<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 
    destroy-method="close"> 
    <beans:property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
    <beans:property name="url" 
     value="jdbc:mysql://localhost:3307/rajuDB" /> 
    <beans:property name="username" value="raju" /> 
    <beans:property name="password" value="raju" /> 
</beans:bean> 

<!-- Hibernate 4 SessionFactory Bean definition --> 
<beans:bean id="hibernate4AnnotatedSessionFactory" 
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> 
    <beans:property name="dataSource" ref="dataSource" /> 
    <beans:property name="annotatedClasses"> 
     <beans:list> 
      <beans:value>com.journeldev.spring.model.Person</beans:value> 
     </beans:list> 
    </beans:property> 
    <beans:property name="hibernateProperties"> 
     <beans:props> 
      <beans:prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect 
      </beans:prop> 
      <beans:prop key="hibernate.show_sql">true</beans:prop> 
     </beans:props> 
    </beans:property> 
</beans:bean> 

<beans:bean id="personDAO" class="com.journeldev.spring.dao.PersonDAOImpl"> 
    <beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" /> 
</beans:bean> 
<beans:bean id="personService" class="com.journeldev.spring.service.PersonServiceImpl"> 
    <beans:property name="personDAO" ref="personDAO"></beans:property> 
</beans:bean> 

<!-- the transactional advice (what 'happens'; see the <aop:advisor/> bean below) --> 

<context:component-scan base-package="com.journeldev.spring" /> 

<tx:annotation-driven transaction-manager="transactionManager"/> 

<beans:bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> 
    <beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" /> 
</beans:bean> 

<tx:advice id="txAdvice" transaction-manager="transactionManager"> 
    <!-- the transactional semantics... --> 
    <tx:attributes> 
     <!-- all methods starting with 'get' are read-only --> 
     <tx:method name="get*" read-only="true"/> 
     <!-- other methods use the default transaction settings (see below) --> 
     <tx:method name="*"/> 
    </tx:attributes> 
</tx:advice> 

<!-- ensure that the above transactional advice runs for any execution 
    of an operation defined by the FooService interface --> 
<aop:config> 
    <aop:pointcut id="personServiceOperation" expression="execution(* com.journeldev.spring.service.PersonServiceImpl.*(..))"/> 
    <aop:advisor advice-ref="txAdvice" pointcut-ref="personServiceOperation"/> 
</aop:config> 
</beans:beans>

我也查了很多其他的线程在互联网上，并试图改变我的servlet-context.xml文件，但没有解决我的问题。

例：试图按本StackOverflow Thread如下

<beans:property name="initialSize" value="7"/> 
    <beans:property name="maxActive" value="7"/> 
    <beans:property name="maxWait" value="10000"/> 
    <beans:property name="validationQuery" value="SELECT 1" /> 
    <beans:property name="validationQueryTimeout" value="34000" /> 
    <beans:property name="testOnBorrow" value="true" />

结果添加额外的参数：问题仍然是相同的：

出2：试图改变数据源按本StackOverflow Thread如下

<beans:bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <beans:property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
    <beans:property name="url" 
     value="jdbc:mysql://localhost:3307/rajuDB" /> 
    <beans:property name="username" value="raju" /> 
    <beans:property name="password" value="raju" /> 
</beans:bean>

结果：问题仍然是相同的

更新按从@詹姆斯Jithin评论：19月 - 2017年

try{ 
     Class.forName("com.mysql.jdbc.Driver"); 
     Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3307/rajuDB", "raju", "raju"); 
     Statement state=conn.createStatement(); 
     ResultSet rs=state.executeQuery("select * from Person"); 

     if(rs!=null && rs.next()) 
     { 
      System.out.println("conn connected"); 
     } 
     else 
     { 
      System.out.println("not connected"); 
     } 
    } 
    catch(Exception e){ 

    }

来源

2017-02-18 Ghost Rider

+0

我已将“Transactional”注释添加到PersonServiceImpl方法的所有方法，该方法在类级别再次用“@Service”注解。 –

+0

建议阅读：[如何创建最小，完整和可验证的示例]（http://stackoverflow.com/help/mcve） – wogsland

+0

请分享您尝试使用的示例Java JDBC连接。 –

回答

0

这是错误的赫克，我已经做了！我很抱歉。代码和xml配置文件没有问题。

初始计划：我在虚拟机中安装了MySql并在端口3306下运行。计划是从运行在我的主机上的tomcat实例运行应用程序。因此，我已经启动了从主机到端口3307-> 3306的端口转发，并且在MYSQL中创建了远程用户'raju'，以便能够从我的主机（在主机中运行的tomcat）进行连接。

错误:(由于一些不可解释的原因）。我决定 在我的虚拟机上运行的单独的tomcat实例中运行该应用程序，该实例正在运行在 上。在这种情况下，tomcat和MySQL将在同一台机器上运行 。

1：所以没有必要做端口映射，我应该直接使用 端口3306

2：我已经获准当前远程用户（“拉朱”），以 有能力本地连接为

grant all privileges on rajuDB.* to 'raju'@'localhost' identified by 'XXXX';

最终结果：现在我能够从database.Every事情按预期工作来获取详细信息。

来源

2017-02-25 05:09:39

0

您已经定义了personService在XML文件中，但你尝试添加事务行为通过注释。不是100％肯定，但我会坚持到XML定义所有的方式，并添加事务配置有：

<!-- the transactional advice (what 'happens'; see the <aop:advisor/> bean below) --> 
    <tx:advice id="txAdvice" transaction-manager="txManager"> 
     <!-- the transactional semantics... --> 
     <tx:attributes> 
      <!-- all methods starting with 'get' are read-only --> 
      <tx:method name="get*" read-only="true"/> 
      <!-- other methods use the default transaction settings (see below) --> 
      <tx:method name="*"/> 
     </tx:attributes> 
    </tx:advice> 

    <!-- ensure that the above transactional advice runs for any execution 
     of an operation defined by the FooService interface --> 
    <aop:config> 
     <aop:pointcut id="personServiceOperation" expression="execution(* com.journeldev.spring.service.PersonServiceImpl.*(..))"/> 
     <aop:advisor advice-ref="txAdvice" pointcut-ref="personServiceOperation"/> 
    </aop:config>

而且从服务中删除的@Transactional注解，以防万一。

示例基于：Spring Transaction Management Article。它包含有关如何使用xml配置使整个服务层事务处理的信息。

来源

2017-02-18 17:18:29

+0

或者直接从XML中移除'personService'的bean定义。他已经用@ @ Service注释了它，并且已经安装了组件扫描。根据他的配置，他不应该做任何事情。 – Naros

+0

@Naros：我已经从xml中删除了“personService”bean并尝试运行。我收到一个错误。 “personController”类期望“personService”被自动装配。 –

+0

@Maciej Kowalski：我会根据你的评论尝试更新我的代码，我会在这里发表我的评论。 –

0

你应该相信错误消息：

org.hibernate.exception。JDBCConnectionException：无法打开 连接

仅仅因为你可以连接到使用MySQL客户端应用程序的数据库，并不意味着你可以在DB通过TCP。 MySQL可以通过TCP端口连接，也可以使用管道连接。您的mySql客户端可能使用命名管道连接到数据库。

https://dev.mysql.com/doc/refman/5.7/en/connecting.html

来源

2017-02-18 17:29:08 raminr

+0

我有MySQL WorkBench设置连接到数据库并通过标准（TCP/IP）连接方法连接。 –

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