yeelink HTTP格式学习

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最近在网上接触了开源硬件Arduino，觉得很好玩，就弄了个板子玩玩，进而接触的yeelink 。yeelink是一个很好玩的物联网云平台，通过HTTP协议发送接收。由于本人对HTTP协议不熟悉，遂通过实际代码学习yeelink通信原理。

JAVA实现的简单测试代码：

发送一个查询设备数据点的HTTP请求，

服务器回复所查询的设备信息。

三个步骤：第一部分，进行DNS地址解析；第二部分，发送HTTP请求；第三部分，接收HTTP响应。

输出结果：

api.yeelink.net/42.96.164.52
GET /v1.1/device/15527/sensor/26738/datapoints HTTP/1.1
U-ApiKey: 29f95415ec8xxxxxxxxxxxxxxxxxxxx
Host: api.yeelink.net

HTTP/1.1 200 OK
Server: nginx/1.1.19
Date: Sat, 08 Nov 2014 15:45:10 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.3.10-1ubuntu3.6

55
{"value":1,"timestamp":"2014-11-08T22:18:08","sensor_id":"26738","device_id":"15527"}
0

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package HTTPTEST;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.net.InetAddress;import java.net.Socket;import java.net.UnknownHostException;public class MAIN {/** * @param args * @throws IOException  */public static void main(String[] args) throws IOException {// TODO Auto-generated method stub<span style="white-space:pre"></span>String host_name = "api.yeelink.net"; // HTTP请求  http://api.yeelink.net/v1.1/device/15527/sensor/26738/datapointsString send_buf = "GET /v1.1/device/15527/sensor/26738/datapoints HTTP/1.1\r\nU-ApiKey: xxxxxxxxxxxxxxxx\r\nHost: api.yeelink.net\r\n\r\n";        char[] cbuf = null;        cbuf = new char[1024];InetAddress myServer = null;//DNS解析出IPmyServer = InetAddress.getByName(host_name);System.out.println(myServer);//创建套接字Socket socket = new Socket(myServer, 80);//创建套接字读写流        BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);        //发送请求        out.println(send_buf);        System.out.print(send_buf);        //读服务器返回值        in.read(cbuf);        System.out.println(cbuf);}}

参考博客：http://blog.csdn.net/xukai871105/article/details/17096319

http://blog.csdn.net/xukai871105/article/details/8607338

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