从HttpServletRequest获取POST请求正文 [英] Get the POST request body from HttpServletRequest

问题描述

我试图从HttpServletRequest对象中获取整个身体。

I am trying to get the whole body from the HttpServletRequest object.

我所遵循的代码如下所示：

The code I am following looks like this:

if ( request.getMethod().equals("POST") )
{
    StringBuffer sb = new StringBuffer();
    BufferedReader bufferedReader = null;
    String content = "";

    try {
        //InputStream inputStream = request.getInputStream();
        //inputStream.available();
        //if (inputStream != null) {
        bufferedReader =  request.getReader() ; //new BufferedReader(new InputStreamReader(inputStream));
        char[] charBuffer = new char[128];
        int bytesRead;
        while ( (bytesRead = bufferedReader.read(charBuffer)) != -1 ) {
            sb.append(charBuffer, 0, bytesRead);
        }
        //} else {
        //        sb.append("");
        //}

    } catch (IOException ex) {
        throw ex;
    } finally {
        if (bufferedReader != null) {
            try {
                bufferedReader.close();
            } catch (IOException ex) {
                throw ex;
            }
        }
    }

    test = sb.toString();
}

我正在使用curl和wget测试功能，如下所示：

and I am testing the functionality with curl and wget as follows:

curl --header "MD5: abcd" -F "fileupload=@filename.txt http://localhost:8080/abcd.html"

wget --header="MD5: abcd" --post-data='{"imei":"351553012623446","hni":"310150","wdp":false}' http://localhost:8080/abcd.html"

但是而（（bytesRead = bufferedReader.read（charBuffer））！= -1）不返回任何内容，因此我没有在StringBuffer上附加任何内容。

But the while ( (bytesRead = bufferedReader.read(charBuffer)) != -1 ) does not return anything, and so I get nothing appended on StringBuffer.

推荐答案

在Java 8中，您可以更简单，更干净的方式完成：

In Java 8, you can do it in a simpler and clean way :

if ("POST".equalsIgnoreCase(request.getMethod())) 
{
   test = request.getReader().lines().collect(Collectors.joining(System.lineSeparator()));
}

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