博主在整合Struts2和Spring时遇到内存溢出问题，经过排查发现是由于struts.ui.theme设置为sample并在src下创建了对应的模板文件夹导致的死循环。解决方案是将struts.ui.theme改为xhtml并删除自定义模板文件夹。
两天了,我还没有解决,贴出来,大侠们帮我看看(现在已经解决了,请看下面)
错误信息如下:
org.apache.jasper.JasperException: An exception occurred processing JSP page /form/login.jsp at line 13
10: </title>
11: </head>
12: <body>
13: <s:form namespace="/main" action="login" method="post" >
14: <s:textfield key="login.page.username" name="fchrUsername"/>
15: <s:password key="login.page.password" name="fchrPassword"/>
16: <s:submit key="login.page.login"/>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:389)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:102)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
root cause
javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791) org.apache.jsp.form.login_jsp._jspService(login_jsp.java:101) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:389) com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:102) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
root cause
java.lang.OutOfMemoryError: Java heap space java.util.Arrays.copyOf(Arrays.java:2760) java.util.Arrays.copyOf(Arrays.java:2734) java.util.ArrayList.ensureCapacity(ArrayList.java:167) java.util.ArrayList.add(ArrayList.java:351) org.apache.struts2.components.template.Template.getPossibleTemplates(Template.java:72) org.apache.struts2.components.template.FreemarkerTemplateEngine.renderTemplate(FreemarkerTemplateEngine.java:92) org.apache.struts2.components.UIBean.mergeTemplate(UIBean.java:559) org.apache.struts2.components.ClosingUIBean.start(ClosingUIBean.java:59) org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:53) org.apache.jsp.form.login_jsp._jspx_meth_s_005fform_005f0(login_jsp.java:179) org.apache.jsp.form.login_jsp._jspService(login_jsp.java:91) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:389) com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:102) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="true" />
<constant name="struts.action.extension" value="do" />
<package name="main" extends="struts-default">
<action name="login" class="loginAction">
<result name="success">/form/index.jsp</result>
<result name="input">/form/login.jsp</result>
</action>
</package>
</struts>
applicationContext.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:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName"
value="com.mysql.jdbc.Driver">
</property>
<property name="url"
value="jdbc:mysql://localhost:3306/spring">
</property>
<property name="username" value="root"></property>
<property name="password" value=""></property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>com/study/hibernate/beans/User.hbm.xml</value>
</list>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>
<!-- config hibernate dao -->
<bean id="UserDAO" class="com.study.hibernate.dao.UserDAO">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<!-- config userDAO proxy -->
<!--
<bean id="UserDAOProxy"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="target">
<ref local="UserDAO" />
</property>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
-->
<!-- config Struts action -->
<bean name="loginAction" class="com.study.struts2.actions.LoginAction">
<property name="userDAO">
<ref local="UserDAO" />
</property>
</bean>
<!-- config logger -->
<bean name="logger" class="com.study.spring.aop.LoggingInterceptor"></bean>
<!-- config proxy -->
<bean name="loggingAutoProxy"
class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
<property name="beanNames">
<list>
<value>/login</value>
</list>
</property>
<property name="interceptorNames">
<list>
<value>logger</value>
</list>
</property>
</bean>
</beans>
那里配置的不对吗,这个问题太难了!谢谢
问题:咋一看是内存溢出，左看右看也没有写什么占内存的地方呀，本以为是struts2和spring的配置文件没配置好，死循环？。。。
原因：在检查了无数次的struts2和spring的配置后，我确定原因不是这里
出问题的自定义模板struts.properties设置(看了这个帖子http://xiezuoming.javaeye.com/blog/410545)
struts.ui.theme=sample
在src下新建template/sample文件夹,存放fielderror.ftl
并新建theme.properties,添加内容parent = simple
偶然间,我修改了struts.properties文件的struts.ui.theme=xhtml,页面就可以正常显示了,于是我删除了template/sample文件夹,问题就解决了!
总结:应该是parent = simple造成了死循环了吧.希望对大家有帮助!
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