大家先不要争了，现在我请教各位java 高手。
我现在用java开发了一个以mvc的网站，但是出现了down机的现象，非常严重，一天得5-6次，我总要重新启动tomcat。真是my god。
原因是用户访问量太大。
怎么结决呢。
只好请教各位了。

把错误日志贴出来看看.

一般可以如下
1:调整启动堆栈大小.
2:增大最大连接数.

最大连接数是指连接池吧，这个方法我试过，没有用的，第一个方法我不太明白，还望指教。
错误日志什么也没有，当down机时静态的html也访问不了。

org.apache.jasper.JasperException: null
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at

org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:160)
at org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:523)
at org.apache.coyote.Response.doWrite(Response.java:524)
at org.apache.coyote.tomcat4.OutputBuffer.realWriteBytes(OutputBuffer.java:384)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:439)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:359)
at org.apache.coyote.tomcat4.OutputBuffer.writeBytes(OutputBuffer.java:411)
at org.apache.coyote.tomcat4.OutputBuffer.write(OutputBuffer.java:398)
at org.apache.coyote.tomcat4.CoyoteOutputStream.write(CoyoteOutputStream.java:110)
at org.apache.catalina.servlets.DefaultServlet.copyRange(DefaultServlet.java:1996)
at org.apache.catalina.servlets.DefaultServlet.copy(DefaultServlet.java:1745)
at org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.java:1073)
at org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.java:506)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at

java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:295)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:161)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:148)
at java.net.Socket.connect(Socket.java:425)
at java.net.Socket.connect(Socket.java:375)
at sun.net.NetworkClient.doConnect(NetworkClient.java:139)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:366)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:582)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:292)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:253)
at sun.net.www.http.HttpClient.New(HttpClient.java:321)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.http.HttpClient.New(HttpClient.java:301)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:469)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:460)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:562)
at java.net.URL.openStream(URL.java:955)
at org.apache.jsp.newbdxdcxok_jsp._jspService(newbdxdcxok_jsp.java:228)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:210)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at

2004-01-05 20:15:27 StandardWrapperValve[default]: Servlet.service() for servlet default threw exception
java.net.SocketException: Socket closed
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:126)
at

清华大学的数字化校园就是，你可以去看看

地址是什么

修改 tomcat.sh


%_RUNJAVA% %TOMCAT_OPTS% -Dtomcat.home="%TOMCAT_HOME%" \
-Xmx256m org.apache.tomcat.startup.Tomcat %2 %3 %4 %5 %6 %7 %8 %9

根据你服务器的实际内存调整 -Xmx256m

多谢指教

tomcat.sh 我没找到呀，在哪呀
bin下没有

catalina.sh

中


根据你选择的启动类型 修改

哎，又是无知者无畏了！！！


看看IBM网站上的成功案例吧

呵呵，不是使用EJB才是J2EE的，选择合适的才是适合的：）

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