HTTP提交数据

 1     /**
 2      * 将放入的参数转换成POST的形式key=value
 3      * @param parames
 4      * @param encode
 5      * @return
 6      */
 7     public static String sendPostMessage(Map<String,String> parames,String encode){
 8         
 9         StringBuffer buffer=new StringBuffer();
10         try{
11         
12         if(parames!=null&&!parames.isEmpty())
13         {
14             for(Map.Entry<String, String> entry:parames.entrySet()){
15                 buffer.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), encode)).append("&");
16             }
17         }
18         return sendOutput(buffer.toString());
19         }catch(Exception e){
20             
21         }
22         return null;
23         
24     }
25     /**
26      * @param outputStream 传入的要输出的对象的流
27      * @param data 获取发送的数据
28      * @return 
29      */
30     private static String sendOutput(String data){
31         try{
32             byte[] mydata=data.getBytes();
33             URL url=new URL(URL_path);
34             HttpURLConnection connection=(HttpURLConnection)url.openConnection();
35             connection.setConnectTimeout(3000);
36             connection.setDoInput(true);
　　　　　　　　　connection.setDoOutput(true);
　　　　　　　　　//设置提交数据方式
　　　　　　　　　connection.setRequestMethod("POST");
37             //设置手机端访问服务器端时请求头信息（http协议）
38             //设置请求的类型为文本类型
39             connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
40             //设置请求体的长度
41             connection.setRequestProperty("Content-Length", String.valueOf(mydata.length));
42             
43             OutputStream outputStream=connection.getOutputStream();
44             outputStream.write(mydata);
45             
46             return changeInputStream(connection.getInputStream(), "utf-8");
47             
48         }catch(Exception e){
49             
50         }
51         return null;
52     }
53     
54     /**
55      * 强输入流转换为字符串输出到内存
56      * @param inputStream
57      * @param encode
58      * @return
59      */
60     private static String changeInputStream(InputStream inputStream,String encode){
61         ByteArrayOutputStream outputStream=new ByteArrayOutputStream();
62         byte[] buffer=new byte[1024];
63         int length=0;
64         try {
65             while(-1!=(length=inputStream.read(buffer))){
66                 outputStream.write(buffer, 0, length);
67             }
68             return new String(outputStream.toByteArray(), "encode");
69         } catch (IOException e) {
70             // TODO Auto-generated catch block
71             e.printStackTrace();
72         }
73         
74         return null;
75     }
76     public static void main(String[] args) {
77         Map<String, String> parames=new HashMap<String,String>();
78         parames.put("username", "admin");
79         parames.put("password", "admin");
80         sendPostMessage(parames, "utf-8");
81     }
82 }
posted on 2016-04-18 12:30 oldcowstruggle 阅读(206) 评论(0) 编辑收藏举报