没有注入实体管理器: Spring方面JAR是否配置为AJC/AJDT方面库？

Question

我正在尝试编写一个简单的spring rest web服务，因为我不熟悉maven (而且因为maven通常无法完成任务--连接问题)，所以我现在尝试ant build。现在，构建正常，服务可以运行了。但如果持久化函数被触发，则会提示：

 01:48:39 Handler execution resulted in exception - forwarding to resolved error view: ModelAndView: reference to view with name 'uncaughtException'; model is {exception=java.lang.IllegalStateException: Entity manager has not been injected (is the Spring Aspects JAR configured as an AJC/AJDT aspects library?)} -org.springframework.web.servlet.DispatcherServlet
 java.lang.IllegalStateException: Entity manager has not been injected (is the Spring Aspects JAR configured as an AJC/AJDT aspects library?)
    at com.books.domain.UserInfo.entityManager(UserInfo.java:96)
    at com.books.domain.UserInfo.findUserByNamePassword(UserInfo.java:157)
    at com.books.web.UserController.register(UserController.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)

我的蚂蚁build.xml：

<target name="compile" depends="init" description="compile the source ">
    <!--<javac srcdir="${src}" 
    debug="on"
    destdir="${build}" 
    classpathref="compile.classpath"
    includeantruntime="false"/>-->
    <iajc source ="1.6" target="1.6" sourceroots="src/main/java" destDir="src/main/webapp/WEB-INF/classes" showweaveinfo="true" verbose="true">
        <classpath>
            <path refid="compile.classpath"/>
            <path refid="aspectj.classpath"/>
        </classpath>
    </iajc>
</target>

我的applicationContext.xml：

<bean class="org.springframework.orm.jpa.JpaTransactionManager" id="transactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
<tx:annotation-driven mode="aspectj" transaction-manager="transactionManager"/>
<bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" id="entityManagerFactory">
    <property name="dataSource" ref="dataSource"/>
</bean>

任何帮助都将不胜感激。谢谢!

Answer 1

我找到了解决方案：

这是正确的iajc任务

<iajc source ="1.6" target="1.6" sourceroots="src/main/java" destDir="src/main/webapp/WEB-INF/classes" showweaveinfo="true" verbose="true">
    <classpath>
        <path refid="compile.classpath"/>
        <path refid="aspectj.classpath"/>
    </classpath>
    <aspectpath>
         <pathelement location="${workdir}/WEB-INF/lib/spring-aspects-3.2.6.RELEASE.jar" />
    </aspectpath>
</iajc>

Answer 2

通过使用ROO和maven pom解决了此问题。关于如何使用Ant build的信息太少了。

Answer 3

考虑到切换到Roo并不是一个真正的解决方案，而是一种变通方法，我想分享一下我在这个问题上的经验。

有两件事你需要检查：

你需要通过编译你的类。Maven aspectj插件提供了必须用@Configurable注释的requirement.

• Your实体类