已经尝试了几个小时将一般 POST 消息发送到服务器。我正在使用 HTTP 核心库。
所有标头似乎都正确组合,但不知何故,消息的正文(实体)被删除并且没有发送到服务器。调用“process”命令或相同的“preProcess”后会出现问题。注意:这实际上与官方 Apache 示例相同。将感谢任何建议。
import java.net.*;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.DefaultHttpClientConnection;
import org.apache.http.message.BasicHttpEntityEnclosingRequest;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.params.SyncBasicHttpParams;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.ExecutionContext;
import org.apache.http.protocol.HttpProcessor;
import org.apache.http.protocol.HttpRequestExecutor;
import org.apache.http.protocol.ImmutableHttpProcessor;
import org.apache.http.protocol.RequestConnControl;
import org.apache.http.protocol.RequestContent;
import org.apache.http.protocol.RequestExpectContinue;
import org.apache.http.protocol.RequestTargetHost;
import org.apache.http.protocol.RequestUserAgent;
import org.apache.http.util.EntityUtils;
public class HTTPCommunicator
{
public static String TOKEN = null;
public static void main(String[] args) throws Exception
{
BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("POST", "/api");
HttpHost host = new HttpHost("localhost", 80);
HttpRequestExecutor httpexecutor = new HttpRequestExecutor();
HttpContext context = new BasicHttpContext(null);
DefaultHttpClientConnection conn = new DefaultHttpClientConnection();
context.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
context.setAttribute(ExecutionContext.HTTP_TARGET_HOST, host);
request.addHeader("Host", "localhost");
request.addHeader("Accept", "application/json,application/xml");
request.addHeader("Accept-Encoding", "gzip, deflate");
HttpParams params = new SyncBasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, "UTF-8");
HttpProtocolParams.setUserAgent(params, "MyClient");
HttpProtocolParams.setUseExpectContinue(params, true);
request.setParams(params);
String sRequest = "userName=yourusername&password=yourpassword";
request.setEntity(new StringEntity(sRequest));
HttpProcessor httpproc = new ImmutableHttpProcessor(new HttpRequestInterceptor[] {
// Required protocol interceptors
new RequestContent(), new RequestTargetHost(),
// Recommended protocol interceptors
new RequestConnControl(), new RequestUserAgent(), new RequestExpectContinue() });
httpproc.process(request, context);
//httpexecutor.preProcess(request, httpproc, context);
//Sending request
Socket socket = new Socket(host.getHostName(), host.getPort());
conn.bind(socket, params);
HttpResponse response = httpexecutor.execute(request, conn, context);
System.out.println(EntityUtils.toString(response.getEntity()));
}