CloseableHttpClient 发送post请求

import org.apache.http.impl.client.CloseableHttpClient;

import org.apache.http.impl.client.HttpClients;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.client.methods.CloseableHttpResponse;

import org.apache.http.HttpEntity;

import org.apache.http.entity.StringEntity;

import org.apache.http.util.EntityUtils;

 

 

String url="";

String params="";

CloseableHttpClient httpClient = HttpClients.createDefault();

HttpPost httpPost = new HttpPost(url);

httpPost.addHeader("Content-Type", "application/json");

httpPost.setEntity(new StringEntity(params));

CloseableHttpResponse response = httpClient.execute(httpPost);

System.out.println(response.getStatusLine().getStatusCode() + "\n");

HttpEntity entity = response.getEntity();

String responseContent = EntityUtils.toString(entity, "UTF-8");

System.out.println(responseContent);

response.close();

httpClient.close();