我在使用 DefaultHttpClient 时遇到问题。
如果我同时向同一服务器执行一些请求 (> 2),它将挂起它们(不会收到任何响应)。所有接下来的请求也将挂起。
这是代码。
public class ConnectionService {
// Should be called once with application context
public static void initWithContext(Context ctx) {
// Creating custom multithread connection manager to handle multiple simultaneous requests
HttpParams params = new BasicHttpParams();
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
ClientConnectionManager cm = new ThreadSafeClientConnManager(params, schemeRegistry);
ConnManagerParams.setMaxTotalConnections(params, 200);
ConnPerRoute cpr = new ConnPerRoute() {
@Override
public int getMaxForRoute(HttpRoute httpRoute) {
return 50;
}
};
ConnManagerParams.setMaxConnectionsPerRoute(params, cpr);
httpClient = new DefaultHttpClient(cm, params);
httpClient.setCookieStore(new PersistentCookieStore(ctx));
}
static private DefaultHttpClient httpClient = null;
private JsonExecutorInterface requestExecutorForRelativePathAndParams(String path, WebParams params) throws UnsupportedEncodingException {
HttpPost postRequest = new HttpPost(rootUrl.toString() + path);
if(params != null) {
postRequest.setEntity(params.getFormEntity());
}
JsonExecutorProxy executor = new JsonExecutorProxy();
executor.setRequest(postRequest);
executor.setErrorsHandlerDelegate(this);
return executor;
}
}
最佳答案
这很可能是由于您构建所使用的 ThreadSafeClientConnManager
的方式所致。如果稍微改变顺序,您应该会得到更好的结果。
HttpParams params = new BasicHttpParams();
// The params are read in the ctor of the pool constructed by
// ThreadSafeClientConnManager, and need to be set before constructing it.
ConnManagerParams.setMaxTotalConnections(params, 200);
ConnPerRoute cpr = new ConnPerRoute() {
@Override
public int getMaxForRoute(HttpRoute httpRoute) {
return 50;
}
};
ConnManagerParams.setMaxConnectionsPerRoute(params, cpr);
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
ClientConnectionManager cm = new ThreadSafeClientConnManager(params, schemeRegistry);
关于java - Android HttpClient 挂起并发请求,直到我向另一个主机执行请求,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10782553/