java.net.SocketException：服务器中的文件意外结束

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我正在使用一个Servlet,它将一个String参数传递给另一个远程系统中的另一个Servlet,以从该远程Servlet获取xml响应.

当我尝试从本地PC连接到该远程Servlet时,此方法工作正常.

但是我收到错误java.net.SocketException：当我从另一台服务器执行文件时,该文件从服务器意外结束.

错误：

2011-06-04 11:27:24,305 INFO  [STDOUT] strURL in Inventry --> http://1**.1**.**.27:7777/GatewayServlet
/Status?Str=Inventory&PARTNUM=200A104%27%2C%27200A112%27%2C%27200A114%27%2C%27200A113%27%2C%27200A117%27%2C%27200A120%27%2C%27240A503%27%2C%27200A132%27%2C%27200A128%27%2C%27200A124
2011-06-04 11:28:06,243 ERROR [STDERR] java.net.SocketException: Unexpected end of file from server
2011-06-04 11:28:06,243 ERROR [STDERR]  at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
2011-06-04 11:28:06,243 ERROR [STDERR]  at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
2011-06-04 11:28:06,243 ERROR [STDERR]  at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
2011-06-04 11:28:06,243 ERROR [STDERR]  at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
2011-06-04 11:28:06,243 ERROR [STDERR]  at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
2011-06-04 11:28:06,243 ERROR [STDERR]  at com.cim.web.servlet.DBGatewayServiceServlet.processRequest(DBGatewayServiceServlet.java:52)
2011-06-04 11:28:06,243 ERROR [STDERR]  at com.cim.web.servlet.DBGatewayServiceServlet.doGet(DBGatewayServiceServlet.java:113)
2011-06-04 11:28:06,243 ERROR [STDERR]  at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
2011-06-04 11:28:06,243 ERROR [STDERR]  at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2    011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
2011-06-04 11:28:06,243 ERROR [STDERR]  at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
2011-06-04 11:28:06,243 ERROR [STDERR]  at java.lang.Thread.run(Unknown Source)

My Servlet(客户端)中的代码：

if(queryString.equals("Inventory")) {

   String partNum = (String)session.getAttribute("PARTNUM");
   String locId = (String)session.getAttribute("locids");

   strURL = strURL+"/InventoryStatus?queryStr=Inventory&PARTNUM="+partNum;

   URLConnection dbGatewayURL = new URL(strURL).openConnection();

   BufferedReader in = new BufferedReader(new InputStreamReader(dbGatewayURL.getInputStream()));//--This is line 52 Mentioned in Error above

   StringBuffer responseData = new StringBuffer();
   String line="";

   while((line = in.readLine()) != null) {
      responseData.append(line);
   }

   String result =responseData.toString();
   request.setAttribute("inventryStock",result);

   RequestDispatcher rd=request.getRequestDispatcher ("inventryStatus.jsp?resp=Yes");
   rd.forward(request, response);  
}

解决方法:

尝试从服务器远程登录到远程servlet,并查看其是否按预期连接.如果不是,那就是连接问题.

如果是这样,请尝试使用TCP监视器查看从服务器到具有servlet的远程服务器的HTTP通信. http://ws.apache.org/commons/tcpmon/

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