json在客户端和服务器端传中文乱码

HttpClient client = new DefaultHttpClient();         HttpPost post = new HttpPost(strUrl);         StringEntity entity = new StringEntity(json);         entity.setContentType("application/json");         entity.setContentEncoding("utf-8");         post.setEntity(entity);                 HttpResponse responString = client.execute(post);

服务器端接受数据：

Java code?try {                 BufferedReader br = new BufferedReader(new InputStreamReader((ServletInputStream) request.getInputStream()));                  String line = "";                                    StringBuilder sb = new StringBuilder();                  while((line = br.readLine())!=null){                  sb.append(line);                  }                  System.out.println("diaryjson:"+sb.toString());              } catch (IOException e) {                 // TODO Auto-generated catch block                 System.out.println("diaryjson receive failure!!!!");             }     
URLDecoder.decode是解码把。
把发送的数据用URLEncoder.encode编码下，在接收到时再用URLDecoder.decode解码下

return URLDecoder.decode(diaryjson,"utf-8");//这句是解码代码，发送时用编码