使用 Jetty 时,出现“响应标头太大”的异常,该异常仅在客户端的大小达到时才会抛出jsonValue
很大(大于 1500 字节)。如果jsonvalue
较小,一切正常。
这是我的代码,非常简单。
服务器代码:
Server server = new Server(8080);
ServletHandler handler = new ServletHandler();
server.setHandler(handler);
handler.addServletWithMapping(StoreServlet.class, "/store");
server.start();
server.join();
StoreServlet类代码:
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException {
response.setStatus(HttpServletResponse.SC_OK);
response.getWriter().println("<h1>Store SimpleServlet</h1>");
}
客户端代码:
HttpClient httpClient = new HttpClient();
httpClient.start();
ContentResponse response = httpClient.POST("http://0.0.0.0:" + host.getPort() + "/store").param("p", jsonValue).send();
静态跟踪:
java.util.concurrent.ExecutionException: java.io.IOException: Response header too large
at org.eclipse.jetty.client.util.FutureResponseListener.getResult(FutureResponseListener.java:118)
at org.eclipse.jetty.client.util.FutureResponseListener.get(FutureResponseListener.java:101)
at org.eclipse.jetty.client.HttpRequest.send(HttpRequest.java:589)
at com.paywithbytes.communication.http.client.HttpClientHelper.doPost(HttpClientHelper.java:54)
at com.paywithbytes.communication.http.client.HttpClientHelper.main(HttpClientHelper.java:35)
Caused by: java.io.IOException: Response header too large
at org.eclipse.jetty.http.HttpGenerator.generateRequest(HttpGenerator.java:249)
at org.eclipse.jetty.client.http.HttpSenderOverHTTP.sendHeaders(HttpSenderOverHTTP.java:78)
at org.eclipse.jetty.client.HttpSender.send(HttpSender.java:191)
at org.eclipse.jetty.client.http.HttpChannelOverHTTP.send(HttpChannelOverHTTP.java:52)
at org.eclipse.jetty.client.http.HttpConnectionOverHTTP$Delegate.send(HttpConnectionOverHTTP.java:168)
at org.eclipse.jetty.client.http.HttpConnectionOverHTTP.send(HttpConnectionOverHTTP.java:69)
at org.eclipse.jetty.client.http.HttpDestinationOverHTTP.send(HttpDestinationOverHTTP.java:36)
at org.eclipse.jetty.client.http.HttpDestinationOverHTTP.send(HttpDestinationOverHTTP.java:26)
at org.eclipse.jetty.client.PoolingHttpDestination$2.run(PoolingHttpDestination.java:130)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:607)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:536)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.nio.BufferOverflowException
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:183)
at java.nio.ByteBuffer.put(ByteBuffer.java:832)
at org.eclipse.jetty.http.HttpGenerator.generateRequestLine(HttpGenerator.java:500)
at org.eclipse.jetty.http.HttpGenerator.generateRequest(HttpGenerator.java:218)
... 11 more
选择的答案是完美的,我只是想补充一点,当发送大文件时,最好使用这种方法:
Request request = httpClient.POST("http://0.0.0.0:" + host.getPort() + "/store").content(
new BytesContentProvider(jsonValue.getBytes()), "text/plain");
否则,如果发送大量jsonValue
as a POST param
, 你会得到:
414 Request-URI Too Long