作者：gggs520_164 | 来源：互联网 | 2023-07-23 17:42
一、问题描述在Eclipse中启动Tomcat（部署2个项目时），访问时，出现java.lang.OutOfMemoryError:PermGenspace原因就是内存溢出，因为Tomcat本身
一、问题描述
在Eclipse中启动Tomcat（部署2个项目时），访问时，出现java.lang.OutOfMemoryError: PermGen space
原因就是内存溢出，因为Tomcat本身默认的内存是比较小的，如果部署多个项目，内存就不够用了，因为需要把内存修改得大点。
错误信息如下：
Java代码
- 2016-9-20 10:25:21 org.apache.catalina.core.StandardWrapperValve invoke
- 严重: Servlet.service() for servlet [spring] in context with path [/businesshall] threw exception [Handler processing failed; nested exception is java.lang.OutOfMemoryError: PermGen space] with root cause
- java.lang.OutOfMemoryError: PermGen space
- at java.lang.ClassLoader.defineClass1(Native Method)
- at java.lang.ClassLoader.defineClassCond(Unknown Source)
- at java.lang.ClassLoader.defineClass(Unknown Source)
- at java.security.SecureClassLoader.defineClass(Unknown Source)
- at java.net.URLClassLoader.defineClass(Unknown Source)
- at java.net.URLClassLoader.access$000(Unknown Source)
- at java.net.URLClassLoader$1.run(Unknown Source)
- at java.security.AccessController.doPrivileged(Native Method)
- at java.net.URLClassLoader.findClass(Unknown Source)
- at java.lang.ClassLoader.loadClass(Unknown Source)
- at java.lang.ClassLoader.loadClass(Unknown Source)
- at org.apache.jasper.compiler.ParserController.getPageEncodingForJspSyntax(ParserController.java:479)
- at org.apache.jasper.compiler.ParserController.determineSyntaxAndEncoding(ParserController.java:420)
- at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:190)
- at org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:119)
- at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:194)
- at org.apache.jasper.compiler.Compiler.compile(Compiler.java:374)
- at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
- at org.apache.jasper.compiler.Compiler.compile(Compiler.java:341)
- at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:662)
- at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:364)
- at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
- at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
- at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
- at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
- at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
- at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
- at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
- at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
- at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
- at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:209)
- at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:267)
二、解决方案下载
1、在Eclipse点击Tomcat打开配置页面，如下图所示：
2、点击open launch configuration下载
3、进入Arguments标签项
4、配置VM Arguments，加入内存的相关配置，如下图所示：
Java代码
- -Xms512m -Xmx1024m
- -XX:PermSize=512M
- -XX:MaxPermSize=1024M
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