简易版post get 请求 

 1 GET请求
 2 
 3  
 4  /**
 5      * 从网络获取json数据,(String byte[})
 6 
 7      * @param path
 8      * @return
 9      */
10     public static String getJsonByInternet(String path){
11         try {
12             URL url = new URL(path.trim());
13             //打开连接
14             HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
15 
16             if(200 == urlConnection.getResponseCode()){
17                 //得到输入流
18                 InputStream is =urlConnection.getInputStream();
19                 ByteArrayOutputStream baos = new ByteArrayOutputStream();
20                 byte[] buffer = new byte[1024];
21                 int len = 0;
22                 while(-1 != (len = is.read(buffer))){
23                     baos.write(buffer,0,len);
24                     baos.flush();
25                 }
26                 return baos.toString("utf-8");
27             }
28         }  catch (IOException e) {
29             e.printStackTrace();
30         }
31 
32         return null;
33     }
34 
35 
36 POST请求
37 
38 
39  
40 //获取其他页面的数据
41     /**
42      * POST请求获取数据
43      */
44     public static String postDownloadJson(String path,String post){
45         URL url = null;
46         try {
47             url = new URL(path);
48             HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
49             httpURLConnection.setRequestMethod("POST");// 提交模式
50             // conn.setConnectTimeout(10000);//连接超时 单位毫秒
51             // conn.setReadTimeout(2000);//读取超时 单位毫秒
52             // 发送POST请求必须设置如下两行
53             httpURLConnection.setDoOutput(true);
54             httpURLConnection.setDoInput(true);
55             // 获取URLConnection对象对应的输出流
56             PrintWriter printWriter = new PrintWriter(httpURLConnection.getOutputStream());
57             // 发送请求参数
58             printWriter.write(post);//post的参数 xx=xx&yy=yy
59             // flush输出流的缓冲
60             printWriter.flush();
61             //开始获取数据
62             BufferedInputStream bis = new BufferedInputStream(httpURLConnection.getInputStream());
63             ByteArrayOutputStream bos = new ByteArrayOutputStream();
64             int len;
65             byte[] arr = new byte[1024];
66             while((len=bis.read(arr))!= -1){
67                 bos.write(arr,0,len);
68                 bos.flush();
69             }
70             bos.close();
71             return bos.toString("utf-8");
72         } catch (Exception e) {
73             e.printStackTrace();
74         }
75         return null;
76     }

 

posted @ 2017-12-05 22:17  勤能补拙Android  阅读(677)  评论(0)    收藏  举报