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我的JSF代碼如何得到“ java.lang.OutOfMemoryError：Java堆空間”？

[英]How come my JSF code is getting a “java.lang.OutOfMemoryError: Java heap space”?

 原文  2015-01-05 04:26:37  3   1    jsf/ jsf-1.1

問題描述

我收到了java.lang.OutOfMemoryError: Java heap space ，我不確定如何避免。 我正在寫我以為基本上是套接字緩沖區的內容。 我認為這是javax.servlet.jsp.JspWriter 。

但是，當我嘗試編寫非常大的HTML文件（約700,000行）時，出現java.lang.OutOfMemoryError: Java heap space 。 我很困惑為什么框架不僅僅刷新到套接字。 （瑪莎，瑪莎，瑪莎）開個玩笑，我可以讓它沖向插槽，而不是僅僅增加緩沖區。

我正在使用JSF 1.1。

注意，我確實嘗試添加此web.xml： 

<context-param>  
    <param-name>facelets.BUFFER_SIZE</param-name>  
    <param-value>500000</param-value>  
</context-param>

它似乎並沒有改變任何東西。

這是我的代碼示例： 

<html>
    <f:view>
        <head>
            <title>Test</title>
        </head>
        <body id="page_body"
            <h:form id="form">
                <%
                    String s;
                    for (int i = 0; i < rowCount; i++) {
                        s = data.get(i);
                        out.println(s);
                        //flush after on every thousandths row.
                        //if(i%1000==1)
                        //         out.flush();
                    }  // for loop
                %>
            </h:form>
        </body>
    </f:view>
</html>

這是我得到的異常： 

org.apache.jasper.JasperException: org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space
    org.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:728)
    com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
    com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
    test.CustomLocaleRemapViewHandler.renderView(CustomLocaleRemapViewHandler.java:94)
    com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
    com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
    test.CustomFilter.doFilter(CustomFilter.java:46)
    test.CustomFilter2.doFilter(CustomFilter2.java:81)
    org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)


root cause 

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space
    org.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:728)
    org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:746)
    org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:716)
    org.apache.jsp.test2_jsp._jspService(test2_jsp.java:122)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    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:728)
    com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
    com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
    test.CustomLocaleRemapViewHandler.renderView(CustomLocaleRemapViewHandler.java:94)
    com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
    com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
    test.CustomFilter.doFilter(CustomFilter.java:46)
    test.CustomFilter2.doFilter(CustomFilter2.java:81)
    org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)


root cause 

javax.servlet.ServletException: java.lang.OutOfMemoryError: Java heap space
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:912)
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:841)
    org.apache.jsp.test_jsp._jspService(test_jsp.java:745)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    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:728)
    org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.java:746)
    org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:716)
    org.apache.jsp.test2_jsp._jspService(test2_jsp.java:122)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    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:728)
    com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
    com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
    test.CustomLocaleRemapViewHandler.renderView(CustomLocaleRemapViewHandler.java:94)
    com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
    com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
    test.CustomFilter.doFilter(CustomFilter.java:46)
    test.CustomFilter2.doFilter(CustomFilter2.java:81)
    org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)


root cause 

java.lang.OutOfMemoryError: Java heap space
    java.util.Arrays.copyOf(Unknown Source)
    java.io.ByteArrayOutputStream.grow(Unknown Source)
    java.io.ByteArrayOutputStream.ensureCapacity(Unknown Source)
    java.io.ByteArrayOutputStream.write(Unknown Source)
    sun.nio.cs.StreamEncoder.writeBytes(Unknown Source)
    sun.nio.cs.StreamEncoder.implWrite(Unknown Source)
    sun.nio.cs.StreamEncoder.write(Unknown Source)
    java.io.OutputStreamWriter.write(Unknown Source)
    java.io.PrintWriter.write(Unknown Source)
    java.io.PrintWriter.write(Unknown Source)
    test.CustomWrapper$CustomPrintWriter.write(CustomWrapper.java:82)
    org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:119)
    org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:336)
    java.io.Writer.write(Unknown Source)
    com.sun.faces.renderkit.html_basic.HtmlResponseWriter.write(HtmlResponseWriter.java:519)
    com.sun.faces.taglib.jsf_core.ViewTag.doAfterBody(ViewTag.java:196)
    org.apache.jsp.test_jsp._jspService(test_jsp.java:725)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    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:728)

順便說一句，BalusC，如果您在那里，請幫助。 沒有壓力，哈哈。 您回答了大約一半的JSF問題。

格雷

1 個解決方案

解決方案1
 0  2015-01-05 04:29:50

您可以嘗試使用-Xmx來增加堆大小。
對於apache tomcat，請使用export CATALINA_OPTS =“-Xmx1024M”

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