JAVA获取POST请求的请求头信息

   public static byte[] getRequestPostBytes(HttpServletRequest request)
   throws IOException {
   int contentLength = request.getContentLength();
   if(contentLength<0){
   return null;
   }
   byte buffer[] = new byte[contentLength];
   for (int i = 0; i < contentLength;) {

   int readlen = request.getInputStream().read(buffer, i,
   contentLength - i);
   if (readlen == -1) {
   break;
   }
   i += readlen;
   }
   return buffer;
   }

   /**
   * 描述:获取 post 请求内容
   * <pre>
   * 举例：
   * </pre>
   * @param request
   * @return
   * @throws IOException
   */
   public static String getRequestPostStr(HttpServletRequest request)
   throws IOException {
   byte buffer[] = getRequestPostBytes(request);
   String charEncoding = request.getCharacterEncoding();
   if (charEncoding == null) {
   charEncoding = "UTF-8";
   }
   return new String(buffer, charEncoding);
   }

   /**
   * 描述:获取请求头内容
   */
       private String getHeadersInfo(HttpServletRequest request) {
   Map<String, String> map = new HashMap<String, String>();
   Enumeration headerNames = request.getHeaderNames();
   while (headerNames.hasMoreElements()) {
   String key = (String) headerNames.nextElement();
   String value = request.getHeader(key);
   map.put(key, value);
   }

   String result="";
   for (String key : map.keySet()) {
       //System.out.println("key= "+ key + " and value= " + map.get(key));
       result = result + "key= "+ key + " and value= " + map.get(key)+"\n";
       }
   return result;
   }

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原文链接：https://blog.csdn.net/vc_004/article/details/78110261

来源：CSDN

作者：梵高的夏天

链接：https://blog.csdn.net/qq_27088383/article/details/103569655

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string

post请求