httpclient post 发送Json数据

String url = "http://127.0.0.1:8099/login";
String json = "{\"login_name\": \"18800000000\",\"login_password\": \"123456\"}";
@Test
public void post() throws ClientProtocolException, IOException{
//创建client
CloseableHttpClient httpclient = HttpClients.createDefault();
try {
//创建post请求
HttpPost httppost = new HttpPost(url);
//json
StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
httppost.setEntity(entity);
System.out.println("executing request " + httppost.getRequestLine());
//执行post请求
CloseableHttpResponse response = httpclient.execute(httppost);
try {
System.out.println("----------------------------------------");
//状态
System.out.println(response.getStatusLine());
//响应实体
HttpEntity resEntity = response.getEntity();
if (resEntity != null) {
System.out.println(EntityUtils.toString(resEntity));
}
//关闭HttpEntity流
EntityUtils.consume(resEntity);
} finally {
response.close();
}
} finally {
httpclient.close();
}
}