代码如下：

public static void main(String[] args) {
   String token =WeiXinUtils.getAccessToken();
   System.out.println("token = "+token);
   // 组装要发送的数据
   JSONObject body = new JSONObject();
   // 要推给谁
   body.put("touser", "xxxx");
   // 模板ID
   body.put("template_id", "xxxx");
   JSONObject data = new JSONObject();
   JSONObject data1 = new JSONObject();
   data1.put("value", "当天12点");
   data.put("character_string1", data1);
   body.put("data", data);
   System.out.println("data = "+body.toString());
   String post = "";
   try {
       post = HttpClientUtils.sendPost("https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" + token, body.toString());

   }catch (Exception e){
      System.out.println("eeee = "+e);
   }
   System.out.println("post = "+post);
}
public static String sendPost(String url, String data) throws Exception {
   URL fullUrl = new URL(url);
   HttpURLConnection connection = (HttpURLConnection) fullUrl.openConnection();
   connection.setRequestMethod("POST");
   connection.setRequestProperty("Content-Type", "application/json");
   connection.setRequestProperty("Accept", "application/json");
   connection.setRequestProperty("Charset", "UTF-8");
   connection.setRequestProperty("Content-Length", String.valueOf(data.length()));

   connection.setDoOutput(true);
   DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
   wr.writeBytes(data);
   wr.flush();
   wr.close();
   if (connection.getResponseCode()!= 200) {
      throw new RuntimeException("Failed : HTTP error code : " + connection.getResponseCode());
   }
   BufferedReader br = new BufferedReader(new InputStreamReader((connection.getInputStream())));
   StringBuilder sb = new StringBuilder();
   String output;
   while ((output = br.readLine())!= null) {
      sb.append(output);
   }
   connection.disconnect();
   return sb.toString();
}



y已经设置了 utf-8 还是显示乱码，请教下如何解决