java.lang.IllegalStateException: getOutputStream() has already been called fo...

小二

我是直接在浏览器地址栏中调用的这个方法；response的的输出被重复调用导致资源占用，请问x5后台的输出流怎么关闭？找不到该对象

1. HttpServletResponse response=(HttpServletResponse) context.get(ActionContext.RESPONSE);
   
2.                 downloadLocal(response);
   
3.                  // 下载本地文件
   
4.         String fileName = "photo.zip".toString(); // 文件的默认保存名
   
5.         // 读到流中
   
6.         InputStream inStream = new FileInputStream("F:/mytest03.zip");// 文件的存放路径
   
7.         // 设置输出的格式
   
8.         response.reset();
   
9.         response.setContentType("bin");
   
10.         response.addHeader("Content-Disposition", "attachment; filename="" + fileName + """);
    
11.         // 循环取出流中的数据
    
12.         byte[] b = new byte[100];
    
13.         int len;
    
14.         try {
    
15.                 ServletOutputStream sos = response.getOutputStream();
    
16.             while ((len = inStream.read(b)) > 0){
    
17.                     sos.write(b, 0, len);
    
18.             }
    
19.             inStream.close();
    
20.             sos.close();
    
21.         } catch (IOException e) {
    
22.             e.printStackTrace();
    
23.         }

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小二

1. 严重: Servlet.service() for servlet WeX5_Baas_Servlet threw exception
   
2. java.lang.IllegalStateException: getOutputStream() has already been called for this response
   
3.         at org.apache.catalina.connector.Response.getWriter(Response.java:611)
   
4.         at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
   
5.         at com.justep.baas.data.DataUtils.writeJsonToResponse(Unknown Source)
   
6.         at com.justep.baas.servlet.BaasServlet.execService(Unknown Source)
   
7.         at com.justep.baas.servlet.BaasServlet.service(Unknown Source)
   
8.         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   
9.         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   
10.         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    
11.         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    
12.         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    
13.         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    
14.         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    
15.         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    
16.         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
    
17.         at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
    
18.         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    
19.         at java.lang.Thread.run(Thread.java:745)
    

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jishuang

sos 关闭之前,按https://blog.csdn.net/xyajia/article/details/78730751中的方法处理看看

小二

jishuang 发表于 2018-11-29 10:20
sos 关闭之前,按https://blog.csdn.net/xyajia/article/details/78730751中的方法处理看看

这个方法是需要在jsp页面调用的，直接写在x5的java中就会内置到jsp页面吧？我直接替换javax.servlet的jar就行了吗？