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我的 spring security/hibernate 应用程序有问题，我无法解决，因为我是 spring 新手，也是 hibernate。这是我的问题：

    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userAccountService': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [javax.persistence.EntityManagerFactory] is defined: expected single bean but found 0: 
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:343)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1120)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:647)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:598)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:661)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:517)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:458)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138)
    at javax.servlet.GenericServlet.init(GenericServlet.java:241)
    at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
    at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:263)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:736)
    at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282)
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518)
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    at org.mortbay.jetty.Server.doStart(Server.java:224)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at runjettyrun.Bootstrap.main(Bootstrap.java:97)
2013-04-15 14:39:30.076:INFO::Started SelectChannelConnector@0.0.0.0:8080

我无法弄清楚那里有什么问题。我用谷歌搜索并尝试了一些可能对其他人有帮助的解决方案，但我的错误不断出现。由于我是 Spring 新手，因此可能是我在代码中犯的一些简单错误。:)

web.xml

<web-app id="WebApp_ID" version="2.4"
    xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext-security.xml</param-value>
    <param-value>/WEB-INF/applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- Spring Security -->
  <filter>
      <filter-name>springSecurityFilterChain</filter-name>
      <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  </filter> 
  <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <welcome-file-list>
    <welcome-file>jsp/index.jsp</welcome-file>
  </welcome-file-list>

</web-app>

应用程序上下文.xml

    <beans:beans xmlns="http://www.springframework.org/schema/security"
             xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:mvc="http://www.springframework.org/schema/mvc"
             xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/security
            http://www.springframework.org/schema/security/spring-security-3.1.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <mvc:annotation-driven />

    <http auto-config="true">
        <form-login login-page="/login" default-target-url="/" authentication-failure-url="/loginfailed" />
        <logout logout-success-url="/logout" />
        <intercept-url pattern="/admin" access="ROLE_ADMIN" />
        <intercept-url pattern="/" access="ROLE_USER,ROLE_ADMIN" />
    </http>

    <beans:bean id="loginService" class="fishpoop.services.LoginService" />

    <authentication-manager>
        <authentication-provider user-service-ref="loginService">
        </authentication-provider>
    </authentication-manager>

</beans:beans>

hibernateContext.xml

    <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="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-3.1.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">

    <context:property-placeholder location="/WEB-INF/jdbc.properties" />

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

    <!-- Declare a datasource that has pooling capabilities-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
          destroy-method="close"
          p:driverClass="${jdbc.driverClassName}"
          p:jdbcUrl="${jdbc.url}"
          p:user="${jdbc.username}"
          p:password="${jdbc.password}"
          p:acquireIncrement="5"
          p:idleConnectionTestPeriod="60"
          p:maxPoolSize="100"
          p:maxStatements="50"
          p:minPoolSize="10" />

    <!-- Declare a JPA entityManagerFactory-->
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" >
        <property name="persistenceXmlLocation" value="classpath*:META-INF/persistence.xml"></property>
        <property name="persistenceUnitName" value="hibernatePersistenceUnit" />
        <property name="dataSource" ref="dataSource"/>
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" >
                <property name="showSql" value="true"/>
            </bean>
        </property>
    </bean>

    <!-- Declare a transaction manager-->
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>

</beans>

用户帐户服务.java

package fishpoop.services;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import fishpoop.model.UserAccount;

@Service("userAccountService")
@Transactional
public class UserAccountService {

    private EntityManager entityManager;

    @PersistenceContext
    public void setEntityManager(EntityManager entityManager){ 
            this. entityManager = entityManager; 
        }
    public UserAccount get(Integer id)
    {
        Query query = entityManager.createQuery("FROM user_account as ua WHERE ua.id="+id);
        return (UserAccount) query.getSingleResult();
    }

    public UserAccount get(String username)
    {
        Query query = entityManager.createQuery("FROM user_account as ua WHERE ua.username='"+username+"'");
        return (UserAccount) query.getSingleResult();
    }

    public void add(UserAccount userAccount)
    {
        entityManager.persist(userAccount);
    }
}

有人可以帮我解决这个错误吗？

4

1 回答 1

1

看来您的文件名不匹配：

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext-security.xml</param-value>
<param-value>/WEB-INF/applicationContext.xml</param-value>

在合同中，您提到applicationContext.xml并hibernateContext.xml

无论如何param-value应该只出现一次，例如：

 <context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/hibernateContext.xml /WEB-INF/applicationContext.xml
</param-value>

param-value注意标签内两个值之间的空格

Spring 已启动并定位您的 Service 类（通过<mvc:annotation-driven />）的事实表明它使用的是第一个 xml 文件，而不是第二个

于 2013-04-15T12:42:31.687 回答