HttpPost发送JSON数据中文乱码问题。

Android移动终端通过 HttpPost发送JSON数据时出现中文乱码问题的解决方案。通常都用UTF-8 编码。

1、客户端 postData为JSON数据JSONObject.
注意点：发送和接收时转码。
public static String httpPostData(String uri, int requestTimeOut, String postData) {
String retStr = "failure";
int tmout = 5;
if (requestTimeOut > 0){
tmout = requestTimeOut;
}
try {
HttpParams httpParams = new BasicHttpParams();
httpParams.setParameter("charset", "UTF-8");
HttpConnectionParams.setConnectionTimeout(httpParams,tmout * 1000); //毫秒
HttpConnectionParams.setSoTimeout(httpParams, tmout * 1000);
HttpClient httpClient = new DefaultHttpClient(httpParams);

HttpPost httpPost = new HttpPost(uri);
httpPost.setEntity(new StringEntity(postData.toString(),"UTF-8"));
HttpResponse response;
response = httpClient.execute(httpPost);
//检验状态码，如果成功接收数据
int code = response.getStatusLine().getStatusCode();
if (code == 200) {
retStr = EntityUtils.toString(response.getEntity(),"UTF-8");
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
} catch (Exception e) {
}
System.out.println("httpPostData() return:" + retStr);
return retStr;
}

2、WEB SERVLET
我用的是Spring3.1框架
注意点：BufferedReader取数时一定要转码。环境不同你可以试着转成GBK码试试。
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, ServiceException {
request.setCharacterEncoding("UTF-8"); //避免中文乱码 POST方式提交
response.setContentType("text/json;charset=UTF-8");
String responseData="[{}]"; //JSONArray String
// 读取请求JSON数据
BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream(),"UTF-8"));
String line = "";
StringBuilder sbf = new StringBuilder();
while((line = br.readLine())!=null){
sbf.append(line);
}
String postData = sbf.toString();
if(postData==null || "".equals(postData)){
postData = "{}"; //JSON数据
}
System.out.println("postData:" + postData);
}

共同学习，共同进步，不对之处还望指正。

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