java socket 异常处理

我有一个RESTful服务器,它从客户端接受http POST输入,在服务器上投票.我已经为客户端使用了Apache HTTPClient.

public boolean vote() {

HttpClient client = new DefaultHttpClient(getHttpParameters());

HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); // Timeout Limit

HttpResponse response;

try {

HttpPost post = new HttpPost("http://127.0.0.1:8080/ws/");

StringEntity se = new StringEntity("{ "song_id" : "2" }");

se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE,"application/json"));

post.setEntity(se);

response = client.execute(post);

if (response != null) {

InputStream in = response.getEntity().getContent(); // Get the data in the Entity

String result = convertStreamToString(in);

return true;

}

} catch (Exception e) {

e.printStackTrace();

return false;

}

return false;

}

public static HttpParams getHttpParameters() {

HttpParams httpParameters = new BasicHttpParams();

int timeoutConnection = 30000;

HttpConnectionParams.setConnectionTimeout(httpParameters,

timeoutConnection);

int timeoutSocket = 30000;

HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

return httpParameters;

}

当我点击投票按钮继续,经过少数投票(如7-8),我得到java.net.SocketTimeoutException：读取超时异常.

当我搜索原因时,我发现这是因为客户端在超时时间内没有得到服务器响应.但问题是,当我使用其他应用程序,如Chrome REST控制台或JMeter,我可以在相同的服务器上投票赞成相同的参数和路径.我的java代码有什么问题吗？请帮我弄清楚.以下是我的堆栈跟踪：

java.net.SocketTimeoutException: Read timed out

at java.net.SocketInputStream.socketRead0(Native Method)

at java.net.SocketInputStream.read(Unknown Source)

at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)

at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:90)

at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:281)

at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:92)

at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62)

at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254)

at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289)

at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252)

at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:191)

at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300)

at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)

at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:715)

at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:520)

at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)

at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)

at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)

at notdefault.ServerStuffs.vote(ServerStuffs.java:72)

at notdefault.MainClass.actionPerformed(MainClass.java:105)

at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)

at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)

at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)

at javax.swing.DefaultButtonModel.setPressed(Unknown Source)

at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)

at java.awt.Component.processMouseEvent(Unknown Source)

at javax.swing.JComponent.processMouseEvent(Unknown Source)

at java.awt.Component.processEvent(Unknown Source)

at java.awt.Container.processEvent(Unknown Source)

at java.awt.Component.dispatchEventImpl(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)

at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)

at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Window.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.EventQueue.dispatchEventImpl(Unknown Source)

at java.awt.EventQueue.access$400(Unknown Source)

at java.awt.EventQueue$2.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)