跟据HttpRequest获取body内数据

1 . 字节流

InputStream inputStream = null ;
try {
    inputStream = request.getInputStream();
    BufferedInputStream byteOutputStream = new BufferedInputStream( inputStream );
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    byte[] bytes = new byte[1024];
    int a ;
    while( ( a = byteOutputStream.read( bytes ) ) != -1){
        byteArrayOutputStream.write( bytes , 0 , a);
    }
    String s = byteArrayOutputStream.toString("utf-8");
    return s;
}catch(IOException e){
    e.printStackTrace();
    return e.getMessage();
}finally{
    if(inputStream != null ){
        try {
            inputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}


2 . 字符流

BufferedReader reader = null ;
try {
    reader = request.getReader();
    StringBuffer sb = new StringBuffer();
    String str  ;
    while (null != (str = reader.readLine())){
        sb.append( str );
    }
    return sb.toString();
} catch (IOException e) {
    e.printStackTrace();
    return e.getMessage();
}finally {
    if(null == reader){
        try {
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

3 . RequestBody方式 直接Map 或者 对象来接收 ,这个需要知道对方传输过来的样式

 

    这样Map就可以直接拿到了 .