http post带参数请求

import java.util.ArrayList; import java.util.List;  import org.apache.http.NameValuePair; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils;  public class DoPOSTParam { public static void main(String[] args) throws Exception { // 创建Httpclient对象  CloseableHttpClient httpclient = HttpClients.createDefault();   // 创建http POST请求  HttpPost httpPost = new HttpPost("http://www.oschina.net/search");   // 设置2个post参数，一个是scope、一个是q  List<NameValuePair> parameters = new ArrayList<NameValuePair>(0);  parameters.add(new BasicNameValuePair("scope", "project"));  parameters.add(new BasicNameValuePair("q", "java"));  // 构造一个form表单式的实体  UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(parameters);  // 将请求实体设置到httpPost对象中  httpPost.setEntity(formEntity);   CloseableHttpResponse response = null;  try { // 执行请求  response = httpclient.execute(httpPost);  // 判断返回状态是否为200  if (response.getStatusLine().getStatusCode() == 200) { String content = EntityUtils.toString(response.getEntity(), "UTF-8");  System.out.println(content);  } } finally { if (response != null) { response.close();  } httpclient.close();  } } }