详细错误信息

HTTP Status 500 - javax.servlet.ServletException: java.lang.OutOfMemoryError: PermGen spacetype Exception reportmessage javax.servlet.ServletException: java.lang.OutOfMemoryError: PermGen spacedescription The server encountered an internal error that prevented it from fulfilling this request.exceptionorg.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.OutOfMemoryError: PermGen spaceorg.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)javax.servlet.http.HttpServlet.service(HttpServlet.java:727)org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:115)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root causejavax.servlet.ServletException: java.lang.OutOfMemoryError: PermGen spaceorg.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:916)org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:845)org.apache.jsp.index_jsp._jspService(index_jsp.java:1102)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)javax.servlet.http.HttpServlet.service(HttpServlet.java:727)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)javax.servlet.http.HttpServlet.service(HttpServlet.java:727)org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:115)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root causejava.lang.OutOfMemoryError: PermGen spacejava.lang.Class.getDeclaredConstructors0(Native Method)java.lang.Class.privateGetDeclaredConstructors(Unknown Source)java.lang.Class.getConstructor0(Unknown Source)java.lang.Class.newInstance(Unknown Source)org.apache.jasper.runtime.TagHandlerPool.get(TagHandlerPool.java:120)org.apache.jsp.index_jsp._jspx_meth_c_005fset_005f0(index_jsp.java:1115)org.apache.jsp.index_jsp._jspService(index_jsp.java:85)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)javax.servlet.http.HttpServlet.service(HttpServlet.java:727)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)javax.servlet.http.HttpServlet.service(HttpServlet.java:727)org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:115)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.54 logs.Apache Tomcat/7.0.54

PermGen space

PermGen space的全称是Permanent Generation space,是指内存的永久保存区域OutOfMemoryError: PermGen space从表面上看就是内存益出，解决方法也一定是加大内存。说说为什么会内存益出：这一部分用于存放Class和Meta的信息,Class在被 Load的时候被放入PermGen space区域，它和和存放Instance的Heap区域不同,GC(Garbage Collection)不会在主程序运行期对PermGen space进行清理，所以如果你的APP会LOAD很多CLASS的话,就很可能出现PermGen space错误。这种错误常见在web服务器对JSP进行pre compile的时候。

解决方法

只需要在Tomcat的bin目录下的“catalina.sh”文件中添加一行就可以解决问题

JAVA_OPTS='-Xms512m -Xmx2048m -XX:PermSize=128M -XX:MaxNewSize=256m -XX:MaxPermSize=256m'

具体位置如下图：