Java如何從HttpServletRequest中讀取HTTP請求的body

首先貼出原文地址，尊重原作者

http://blog.csdn.net/zxygww/article/details/47045055

注意：下面方法已驗證通過。

HTTP請求中的是字符串數據：

//字符串讀取

void charReader(HttpServletRequest request) {

BufferedReader br = request.getReader();

String str, wholeStr = "";
while((str = br.readLine()) != null){
wholeStr += str;
}

System.out.println(wholeStr);

}

//二進制讀取

void binaryReader(HttpServletRequest request) {

int len = request.getContentLength();
ServletInputStream iii = request.getInputStream();
byte[] buffer = new byte[len];
iii.read(buffer, 0, len);

}

 

注意：

request.getInputStream(); 

request.getReader();

和request.getParameter("key");

這三個函數中任何一個函數執行一次后（可正常讀取body數據），之后再執行就無效了。

從HttpServletRequest中得到完整的請求URL

 

String getFullURL(HttpRequest request) {

 StringBuffer url = request.getRequestURL();
 if (request.getQueryString() != null) {
  url.append(’?’);
  url.append(request.getQueryString());
 }
 return url.toString();
}