java 服务器发送请求数据_java以json格式向后台服务器接口发送请求的实例

import java.io.BufferedReader;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.URL;

import net.sf.json.JSONObject;

public class InterfaceRequest {

//模拟向腾讯云发送接口

//接口

private final static String URL = "https://console.tim.qq.com/v4/im_open_login_svc/account_import?";

/**

* @param args

* @throws IOException

*/

public static void main(String[] args) throws IOException {

// TODO Auto-generated method stub

//连接服务器

HttpURLConnection connection = connection(URL);

DataOutputStream out = new DataOutputStream(

connection.getOutputStream());

JSONObject obj = new JSONObject();

obj.element("Identifier", "hehe");

System.out.println(obj.toString());

// 向腾讯请求传入编码为UTF-8格式的json数据

out.write(obj.toString().getBytes("UTF-8"));

out.flush();

out.close();

//获得服务器返回的结果

BufferedReader reader = new BufferedReader(new InputStreamReader(

connection.getInputStream()));

String lines;

StringBuffer sb = new StringBuffer("");

while ((lines = reader.readLine()) != null) {

lines = new String(lines.getBytes(), "utf-8");

sb.append(lines);

}

reader.close();

}

public static HttpURLConnection connection(String URL

) throws IOException {

URL url = new URL(URL);

HttpURLConnection connection = (HttpURLConnection) url.openConnection();

connection.setDoOutput(true);

connection.setDoInput(true);

connection.setRequestMethod("POST");

connection.setUseCaches(false);

connection.setInstanceFollowRedirects(true);

connection.setRequestProperty("Content-Type",

"application/x-www-form-urlencoded;charset=UTF-8");

connection.connect();

return connection;

// TODO Auto-generated method stub

}

}