struts2 接收不到post来的请求参数

Question

struts2 接收不到post来的请求参数（json）字符串，试了两种方式，可以正常接收Get来的参数，但是如果post json字符串就接收不了，如果是json数组可以接受的到

发送方：

/**  
     * 发起http请求并获取结果  
     *   
     * @param requestUrl 请求地址  
     * @param requestMethod 请求方式（GET、POST）  
     * @param outputStr 提交的数据  
     * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)  
     */    
    public static JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) {    
        JSONObject jsonObject = null;    
        StringBuffer buffer = new StringBuffer();  
        InputStream inputStream=null;  
        try {  
            URL url = new URL(requestUrl);  
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();    
            httpUrlConn.setDoOutput(true);    
            httpUrlConn.setDoInput(true);    
            httpUrlConn.setUseCaches(false);  
            // 设置请求方式（GET/POST）    
            httpUrlConn.setRequestMethod(requestMethod);    
            if ("GET".equalsIgnoreCase(requestMethod))    
                httpUrlConn.connect();    
    
            // 当有数据需要提交时    
            if (null != outputStr) {    
                OutputStream outputStream = httpUrlConn.getOutputStream();    
                // 注意编码格式，防止中文乱码    
                outputStream.write(outputStr.getBytes("UTF-8"));    
                outputStream.close();    
            }  
            //将返回的输入流转换成字符串    
            inputStream = httpUrlConn.getInputStream();    
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");    
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);    
    
            String str = null;    
            while ((str = bufferedReader.readLine()) != null) {    
                buffer.append(str);    
            }    
            bufferedReader.close();    
            inputStreamReader.close();    
            // 释放资源    
            inputStream.close();    
            inputStream = null;    
            httpUrlConn.disconnect();    
          jsonObject = JSONObject.fromObject(buffer.toString());  
        } catch (ConnectException ce) {    
              ce.printStackTrace();  
              System.out.println("Weixin server connection timed out");  
        } catch (Exception e) {    
               e.printStackTrace();  
               System.out.println("http request error:{}");  
        }finally{  
            try {  
                if(inputStream!=null){  
                    inputStream.close();  
                }  
            } catch (IOException e) {  
                // TODO Auto-generated catch block  
                e.printStackTrace();  
            }  
        }   
        return jsonObject;    
    }    

接收方：

@SuppressWarnings("serial")
public class FicationAction extends ActionSupport{
    
    private String t;
    private String r;
    public String getT() {
        return t;
    }

    public void setT(String t) {
        this.t = t;
    }

    public String getR() {
        return r;
    }

    public void setR(String r) {
        this.r = r;
    }

    private static Logger logger = 

     public void fication() throws Exception{
         
         logger.debug("请求r：\"" + r + "\""); 
         
         System.out.println("r" + r);
         System.out.println("t" + t);
     
         HttpServletRequest request = ServletActionContext.getRequest();  
            BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream(), "UTF-8"));
            StringBuffer sb = new StringBuffer("");
            String temp;
            while ((temp = br.readLine()) != null) {

                sb.append(temp);

            }
            br.close();
            String reqMessage = sb.toString();
            System.out.println("请求：\"" + reqMessage + "\"");

Answer 1

request能接收到参数，就是读不出来