Servlet 远程服务IO流传输数据

在项目中，不同的两个服务器如果存在相互传输数据的时候，如果一般用HTTP-URL传输的话，要考虑很多问题，而且URL的get方法不能传输过多的数据。
出于安全和业务方面的考虑，服务器之间、客户端和服务器之间使用IO流来传输数据不失为一种很好的解决方案。也不用过多考虑出现乱码的问题等。
（发送并接收）

 1         String jsonStr="{'user':'user1','password':'16468498498'}";
 2         String ecod=null;
 3         //加密
 4         try {
 5             ecod = Des3.encode(jsonStr);
 6         } catch (Exception e1) {
 7             e1.printStackTrace();
 8         }
 9 
10         try {
11             
12             
13             URL url = new URL("http://www.testService.com/data.action"); 
14             HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); 
15             urlConn.setDoOutput(true);
16             urlConn.setDoInput(true);
17             urlConn.setUseCaches(false);  
18             urlConn.setRequestProperty("Content-type","application/x-java-serialized-object");  
19             urlConn.setRequestMethod("POST");  
20             urlConn.connect();  
21             OutputStream outStrm = urlConn.getOutputStream();  
22             outStrm.write(ecod.getBytes()); 
23             outStrm.flush();
24             outStrm.close();
25         }
26         
27         //接收到的返回数据 已加密(使用特定的密钥)
28         InputStream i = urlConn.getInputStream(); 
29         BufferedReader in = new BufferedReader(new InputStreamReader(i));
30         StringBuffer buffer = new StringBuffer();
31         String line = "";
32         while ((line = in.readLine()) != null){
33               buffer.append(line);
34         }
35         line = buffer.toString();
36         System.out.println(line);

基于JSON 的数据传输技术（处理并返回）

 1     public void doPost(HttpServletRequest request, HttpServletResponse response)
 2             throws ServletException, IOException {
 3 
 4         
 5         request.setCharacterEncoding("UTF-8");
 6         String dcod = null;
 7         InputStream i = request.getInputStream();
 8         BufferedReader in = new BufferedReader(new InputStreamReader(i));
 9         StringBuffer buffer = new StringBuffer();
10         String line = "";
11             while ((line = in.readLine()) != null){
12                   buffer.append(line);
13             }
14             dcod = buffer.toString();
15             String s = null;
16             if(dcod!=null){
17             
18                 try {
19                 //解密    
20                 s = Des3.decode(dcod);
21                 } catch (Exception e) {
22                 
23                 e.printStackTrace();
24              }
25             }
26 
27             ActionMap amp= (ActionMap) JsonUtil.getDtoFromJsonObjStr(s,ActionMap.class);//将json数据转换成对象
28             /***这里是业务逻辑处理***/
29         OutputStream ooo = response.getOutputStream();
30         
31         //返回数据
32         ooo.write(result.getBytes());
33         ooo.flush();
34         ooo.close();
35 
36     }

 

 

 

在项目中，不同的两个服务器如果存在相互传输数据的时候，如果一般用HTTP-URL传输的话，要考虑很多问题，而且URL的get方法不能传输过多的数据。
出于安全和业务方面的考虑，服务器之间、客户端和服务器之间使用IO流来传输数据不失为一种很好的解决方案。也不用过多考虑出现乱码的问题等。
（发送并接收）

 1         String jsonStr="{'user':'user1','password':'16468498498'}";
 2         String ecod=null;
 3         //加密
 4         try {
 5             ecod = Des3.encode(jsonStr);
 6         } catch (Exception e1) {
 7             e1.printStackTrace();
 8         }
 9 
10         try {
11             
12             
13             URL url = new URL("http://www.testService.com/data.action"); 
14             HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); 
15             urlConn.setDoOutput(true);
16             urlConn.setDoInput(true);
17             urlConn.setUseCaches(false);  
18             urlConn.setRequestProperty("Content-type","application/x-java-serialized-object");  
19             urlConn.setRequestMethod("POST");  
20             urlConn.connect();  
21             OutputStream outStrm = urlConn.getOutputStream();  
22             outStrm.write(ecod.getBytes()); 
23             outStrm.flush();
24             outStrm.close();
25         }
26         
27         //接收到的返回数据 已加密(使用特定的密钥)
28         InputStream i = urlConn.getInputStream(); 
29         BufferedReader in = new BufferedReader(new InputStreamReader(i));
30         StringBuffer buffer = new StringBuffer();
31         String line = "";
32         while ((line = in.readLine()) != null){
33               buffer.append(line);
34         }
35         line = buffer.toString();
36         System.out.println(line);

基于JSON 的数据传输技术（处理并返回）

 1     public void doPost(HttpServletRequest request, HttpServletResponse response)
 2             throws ServletException, IOException {
 3 
 4         
 5         request.setCharacterEncoding("UTF-8");
 6         String dcod = null;
 7         InputStream i = request.getInputStream();
 8         BufferedReader in = new BufferedReader(new InputStreamReader(i));
 9         StringBuffer buffer = new StringBuffer();
10         String line = "";
11             while ((line = in.readLine()) != null){
12                   buffer.append(line);
13             }
14             dcod = buffer.toString();
15             String s = null;
16             if(dcod!=null){
17             
18                 try {
19                 //解密    
20                 s = Des3.decode(dcod);
21                 } catch (Exception e) {
22                 
23                 e.printStackTrace();
24              }
25             }
26 
27             ActionMap amp= (ActionMap) JsonUtil.getDtoFromJsonObjStr(s,ActionMap.class);//将json数据转换成对象
28             /***这里是业务逻辑处理***/
29         OutputStream ooo = response.getOutputStream();
30         
31         //返回数据
32         ooo.write(result.getBytes());
33         ooo.flush();
34         ooo.close();
35 
36     }