android客户端提交数据到服务器中文乱码三种解决方案

在开始学android的时候提交数据到服务器出现中文乱码问题,经过多方面查资料终于将漂亮的中文在服务器端获取到了.下面总结出三种方法可已经中文乱码解决.
第一种.在客户端适用HttpPost方式提交数据:

public static  String toCallOnServer(String path,String encode) throws ClientProtocolException, IOException{
       HttpPost httpPost = new HttpPost(pathString +path);
       DefaultHttpClient client = new DefaultHttpClient();
       //httpPost.addHeader("charset", HTTP.UTF_8);
       HttpResponse response = client.execute(httpPost);
       httpPost.addHeader("Content-Type", "text/html");    //这行很重要
       httpPost.addHeader("charset", HTTP.UTF_8);         //这行很重要
       //上述两行制定提交数据的时候通过什么方式来处理URL,第一句,著名这个URL是以text/html的格式发送给服务器的(个人理解),
       //第二句,设定url的编码方式.以服务器端一致.在.在这里讲解下URL在传递的过程,
       //首先tomcat在接受URL的时候是以iso-8859-1的编码方式进行编码的,在服务器端接收到数据后要用                                            new String(name.getBytes(“iso-8859-1),”utf-8”)
       //这种方式进行转码.                                   
    if(response.getStatusLine().getStatusCode()==200){
           InputStream inputStream = response.getEntity().getContent();
           return getContext(inputStream, encode);
       }
       return "";
    }

测试代码:

public void testAddQuestion(){
       try {
       String pathS ="http://192.168.1.106:8080/jiudian/AndroidServlet?action=edit&uname=jack&question=你最喜欢的电影&answer=哈利波特";
//         String newPath = URLEncoder.encode(pathS, "utf-8");
           String result = HttpUtils.toCallOnServer(pathS, "utf-8");
           Log.i(TAG, result);
       } catch (ClientProtocolException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
    }

服务器端代码:

String msg = "";
       String uname = request.getParameter("uname").trim();
       String question = new String(request.getParameter("question").getBytes("iso-8859-1"),"utf-8");
       String answer = new String(request.getParameter("answer").getBytes("iso-8859-1"),"utf-8");

第二种方式:
适用URL 和HTTPUrlConnetion 连接适用GET方法上传数据

URL url = new URL(path);

           HttpURLConnection connection = (HttpURLConnection) url

                  .openConnection();

           connection.setDoInput(true);

           connection.setDoOutput(true);

           connection.setRequestMethod("GET");

服务器代码:

String msg = "";
       String uname = request.getParameter("uname").trim();
       String question = new String(request.getParameter("question").getBytes("iso-8859-1"),"utf-8");
       String answer = new String(request.getParameter("answer").getBytes("iso-8859-1"),"utf-8");

测试代码:
测试代码中有需要注意的地方

String path = "http://192.168.1.106:8080/jiudian/AndroidServlet?action=edit&uname=jack";
       StringBuffer buffer  = new StringBuffer(path);
       //&question=asdfdsa&answer=asdfdas
 buffer.append("&question=").append(URLEncoder.encode("你最喜欢的电影", "utf-8"))
.append("&answer=").append(URLEncoder.encode("哈利波特", "utf-8"));
//     String result =HttpUtils.loginPostData(path, map);
       String result = HttpUtils.checkLogin(buffer.toString());
       Log.i(TAG, result);

在测试代码中要把中文乱码进行转换处理

第三种方式:
讲数据封装成map格式,适用URL 和HttpURLConnection连接,用POST方式传递.

public static String loginPostData(String path, Map map) {
       InputStream inputStream = null;
       OutputStream outputStream = null;
       try {
           URL url = new URL(path);
           HttpURLConnection connection = (HttpURLConnection) url
                  .openConnection();
           connection.setDoInput(true);
           connection.setDoOutput(true);
           connection.setRequestMethod("POST");
           StringBuffer buffer = new StringBuffer();
           if (map != null && !map.isEmpty()) {
              for (Map.Entry entry : map.entrySet()) {
                  buffer.append(entry.getKey())
                         .append("=")          .append(URLEncoder.encode(entry.getValue(), "utf-8"))
                         .append("&");
              }
              buffer.deleteCharAt(buffer.length() - 1);
           }
           byte[] data = buffer.toString().getBytes();
           connection.setRequestProperty("Content-Type",
                  "application/x-www-form-urlencoded");
           connection.setRequestProperty("Content-Length",
                  String.valueOf(data.length));
           outputStream = connection.getOutputStream();
           outputStream.write(data);
           if (connection.getResponseCode() == 200) {
              inputStream = connection.getInputStream();
              return getContext(inputStream, "utf-8");
           }
       } catch (MalformedURLException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       } finally {
           try {
              inputStream.close();
              outputStream.close();
           } catch (IOException e) {
               // TODO Auto-generated catch block
              e.printStackTrace();
           }
       }
       return null;
    }

服务器代码:

String uname = request.getParameter("uname").trim();
       String question = request.getParameter("question");
       String answer = request.getParameter("answer");

测试代码:

String path = "http://192.168.1.106:8080/jiudian/AndroidServlet?action=edit&uname=jack";
       Map<String, String> map = new HashMap<String, String>();
       map.put("uname", "jack");
       map.put("question", "你最喜欢的电影");
       map.put("answer", "哈利波特");
String result =HttpUtils.loginPostData(path, map);

原文地址: http://blog.sina.com.cn/s/blog_a1dbef1101012xlu.html