代码重构 spring自动装配 struts动态方法-优快云博客

本文链接：https://blog.youkuaiyun.com/chenpy/article/details/84526722

本文记录了一次将Struts2与Spring框架整合的过程，包括动态方法调用配置、Spring的组件扫描与代理配置、解决类未找到及Bean重复加载等问题。最终实现了Struts2与Spring的成功整合。

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今天工作需要把原来另外一个团队的代码重构

1：原来的一个请求一个action要修改为多个请求一个aciton

修改1：在struts.xml 文件里面增加

然后新的action配置如下

2：修改原来spring的使用方式

遇到的问题1

在applicationContext.xml文件中新增

<context:component-scan base-package="*.*" />

出现问题

Caused by: org.springframework.aop.framework.AopConfigException: Cannot proxy target class because CGLIB2 is not available. Add CGLIB to the class path or specify proxy interfaces.
    at org.springframework.aop.framework.DefaultAopProxyFactory.createAopProxy(DefaultAopProxyFactory.java:67)
    at org.springframework.aop.framework.ProxyCreatorSupport.createAopProxy(ProxyCreatorSupport.java:104)
    at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:112)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:476)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:362)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:407)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1426)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    ... 24 more

加入jar包 cglib-nodep-2.2.jar 问题解决

然后spring还是没有装配好

然后在寻找问题，发现还少配置

新增配置 <aop:aspectj-autoproxy proxy-target-class="true" />

然后发现有报错

Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Aspect
    at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.hasAspectAnnotation(AbstractAspectJAdvisorFactory.java:119)
    at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.isAspect(AbstractAspectJAdvisorFactory.java:115)
    at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.isInfrastructureClass(AnnotationAwareAspectJAutoProxyCreator.java:100)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:278)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:848)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:820)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:446)
    ... 23 more

加入jar包 aspectjrt-1.5.4.jar
aspectjweaver-1.6.11.jar 后不报错了，但是service还是空。

继续寻找问题。

网上搜索可能是需要struts和spring的自动装配的配置，然后在struts配置文件中增加

然后报错

Caused by: Unable to load bean: type:com.opensymphony.xwork2.ObjectFactory class:org.apache.struts2.spring.StrutsSpringObjectFactory - bean - file:/D:/tomcat/tomcat-7/webapps/admin/WEB-INF/classes/struts.xml:10:129
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:232)
    at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
    ... 20 more
Caused by: java.lang.ClassNotFoundException: org.apache.struts2.spring.StrutsSpringObjectFactory
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
    at com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:157)
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:203)
    ... 23 more

网上搜索后发现是少jar包

加上jar包 struts2-spring-plugin-2.1.8.1.jar 后

报错

Caused by: Unable to load bean: type:com.opensymphony.xwork2.ObjectFactory class:org.apache.struts2.spring.StrutsSpringObjectFactory - bean - file:/D:/tomcat/tomcat-7/webapps/admin/WEB-INF/classes/struts.xml:10:129
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:232)
    at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
    ... 20 more
Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name spring has already been loaded by [unknown location] - bean - file:/D:/tomcat/tomcat-7/webapps/admin/WEB-INF/classes/struts.xml:10:129
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:216)
    ... 23 more

是bean重复创建的问题

删除 <bean type="com.opensymphony.xwork2.ObjectFactory" name="spring" class="org.apache.struts2.spring.StrutsSpringObjectFactory" />
问题解决。

久违的自动装配bean成功装配好