内存溢出PermGen space & Java heap space解决办法(转载)

今天访问web服务器，点击几个网页，tomcat服务就瘫痪了，通过查看日志，发现java.lang.OutOfMemoryError: PermGen space错误，如下

Mar 6, 2010 3:27:06 PM org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler process
SEVERE: Error reading request, ignored
java.lang.OutOfMemoryError: PermGen space
Exception in thread "scheduler_QuartzSchedulerThread" java.lang.OutOfMemoryError: PermGen space

Exception in thread "http-80-5" java.lang.OutOfMemoryError: PermGen space
Exception in thread "http-80-3" java.lang.OutOfMemoryError: PermGen space

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解决办法：

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