Request的数据转换Map（支持json数据格式）

Request的数据转换Map（支持json数据格式）

用于平时前端获取数据

	public static Map<String, Object> request2Map(HttpServletRequest request){
        Map<String, Object> map=null;
        try {
            if(request.getParameterMap()!=null&&request.getParameterMap().size()!=0){
                map = req2Map(request);
            }else {
                map = getRequestPostStr(request);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return map;
    }

    /**
     * 将request中的Mep转换成map
     * @param request
     * @return
     */
    public static Map<String, Object> req2Map(HttpServletRequest request) {
        Map<String, Object> map = new HashMap<>();
        request.getParameterMap().forEach((key, value) -> map.put(key, value[0]));
        return map;
    }
    /**
     * json转换成map
     * @param request
     * @return
     * @throws IOException
     */
    public static Map<String,Object> getRequestPostStr(HttpServletRequest request)
            throws IOException {
        byte buffer[] = getRequestPostBytes(request);
        String charEncoding = request.getCharacterEncoding();
        if (charEncoding == null) {
            charEncoding = "UTF-8";
        }
        Map<String, Object> map = (Map) JSON.parse(new String(buffer, charEncoding));
        return map;
    }
    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;
    }

实际开发中将这段代码放到Util工具类里
直接 Map=Util.request2Map(request) 就可以了

以上代码只是一个Demo，具体操作还是根据大家自身情况修改
我只是将自己的代码放上去用于笔记
如有雷同请见谅！！