使用 Context 集合时，嵌入式 Jetty 不会调用 doPost

Question

我在嵌入式模式下使用 Jetty 6。我在 ContextHandlerCollection 中有许多 servlet。除了这个问题之外，servlet 在不同的 URL 上也能正常工作。

ContextHandlerCollection contexts = new ContextHandlerCollection();
server.setHandler(contexts);
HandlerContainer mainhandler = contexts;

    Context qxrpc = new Context(contexts,"/api",Context.SESSIONS);

    ServletHolder rpcServHolder = new ServletHolder(new FrzRpcServlet()); 
    rpcServHolder.setInitParameter("referrerCheck", "public"); 
            // allows cross-domain calls
    qxrpc.addServlet( rpcServHolder, "*.qxrpc");

    Context statscontext =new Context(contexts,"/stats",Context.SESSIONS);
    ServletHolder statsHolder = new ServletHolder(new FrzStatsServlet());
    statsHolder.setInitParameter("restrictToLocalhost", "false"); 
                // allows cross-domain calls        
    statscontext.addServlet(statsHolder, "/*");

    Context hellocontext = new Context(contexts,"/hello", Context.SESSIONS);        
    hellocontext.addServlet(new ServletHolder(new HelloServlet("HELLO TEST: ")),
                                          "/*");

    Context zdbcontext = new Context(contexts,"/zdb", Context.ALL);     
    ServletHolder zdbHolder = new ServletHolder(new FrzZdbServlet());
    statsHolder.setInitParameter("restrictToLocalhost", "false");
            // allows cross-domain calls        

    zdbcontext.addServlet(zdbHolder, "/*");

    Context root = new Context(mainhandler,"/",Context.SESSIONS);
    root.setResourceBase(docroot);
    root.addServlet(DefaultServlet.class, "/");  

我知道 POST 请求正在发送到我的服务器。以下是一些 ngrep 输出：

T 127.0.0.1:51634 -> 127.0.0.1:8080 [AP]
GET /zdb/test.123:1.1.local1.stringtest HTTP/1.1..Host: 127.0.0.1:8080..Connection: keep-alive..Referer: http://127.0.0.1:8888/GWT_ZDB_editor.html?gwt.codesvr=127.0.0.1:9997..Origin: http://127.0.0.1:8888..User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/534.24 (KHTML, like Gecko) Chrome/11.0.696.71 Safari/534.24..Content-Type: text/plain; charset=utf-8..Accept: */*..Accept-Encoding: gzip,deflate,sdch..Accept-Language: en-US,en;q=0.8..Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3....      
##
T 127.0.0.1:8080 -> 127.0.0.1:51634 [AP]
  HTTP/1.1 200 OK..Access-Control-Allow-Origin: *..Content-Type: application/json; charset=ISO-8859-1..Content-Length: 124..Server: Jetty(6.1.15)....                                                     
##
T 127.0.0.1:8080 -> 127.0.0.1:51634 [AP]
  { "r":0,"D":"test.123:1.1.local1.stringtest","m":"OK","t":0,"p": {"ztype": "STRING", "dat" : { "cp":0, "v": "test12131" }}}                                                                            
##

Unsuccessful POST - reports 200 OK - but never gets to servlet

T 127.0.0.1:51634 -> 127.0.0.1:8080 [AP]
OPTIONS /zdb/test.123:1.1.local1.stringtest/put HTTP/1.1..Host: 127.0.0.1:8080..Connection: keep-alive..Referer: http://127.0.0.1:8888/GWT_ZDB_editor.html?gwt.codesvr=127.0.0.1:9997..Access-Control-Request-Method: POST..Origin: http://127.0.0.1:8888..User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/534.24 (KHTML, like Gecko) Chrome/11.0.696.71 Safari/534.24..Access-Control-Request-Headers: content-type..Accept: */*..Accept-Encoding: gzip,deflate,sdch..Accept-Language: en-US,en;q=0.8..Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3....                                                        
#
T 127.0.0.1:8080 -> 127.0.0.1:51634 [AP]
  HTTP/1.1 200 OK..Allow: GET, HEAD, POST, TRACE, OPTIONS..Content-Length: 0..Server: Jetty(6.1.15)...
  .                

我不明白的是为什么 doPost() 没有被调用，而 doGet() 被调用。有问题的 servlet 是 FrzZdbServlet。

在 Google 上找到了许多线程，但 Jetty 人员只返回示例，而这些示例又只为 Context 示例实现 do doGet() 。如此处

另外，我从 GWT 代码发布，并且使用内容类型 application/json。这可能是问题所在吗？任何指示将不胜感激。

Answer 1

我的上下文显然不接受内容类型为 application/json 的 POST。在我的客户端代码上删除它可以修复它。如果其他人有意见，请感激不尽。