OutOfMemoryError

Question

严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space
    at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:114)
    at java.io.OutputStreamWriter.write(OutputStreamWriter.java:203)
    at org.apache.tomcat.util.buf.C2BConverter.convert(C2BConverter.java:87)
    at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:457)
    at org.apache.catalina.connector.CoyoteWriter.write(CoyoteWriter.java:162)
    at org.apache.catalina.connector.CoyoteWriter.write(CoyoteWriter.java:171)
    at org.phprpc.PHPRPC_Server.sendCallback(PHPRPC_Server.java:252)
    at org.phprpc.PHPRPC_Server.sendError(PHPRPC_Server.java:282)
    at org.phprpc.PHPRPC_Server.start(PHPRPC_Server.java:697)
    at org.apache.jsp.emp_jsp._jspService(emp_jsp.java:61)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
    at java.lang.Thread.run(Thread.java:619)

网上都在说修改 tomcat的文件。数据量大了，在改也没有用呀。。

有什么好的办法吗？？？？？？

Answer 1

如果你开的内存都到极限了，你还是仔细检查下你的程序吧，推荐使用JProfiler，如果你确定你的程序没问题，那只有最后一步就是升级硬件，不过一般都是程序的问题，所以先检查程序，看那个模块出现问题！