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HttpServletRequest获取POST请求参数3种方法

客户端通过HTTP POST多参数字符串，比如(username=51gjie&pwd=123456789)，HttpServletRequest 获取到POST的参数有如下3种方法：

request.getInputStream()

private static String getPostData(HttpServletRequest request) {

StringBuffer data = new StringBuffer();

String line = null;

BufferedReader reader = null;

try {

reader = request.getReader();

while (null != (line = reader.readLine()))

data.append(line);

} catch (IOException e) {

} finally {

}

return data.toString();

}

获取到POST过来的信息(username=51gjie&pwd=123456789)，后面直接解析字符串就好了。

request.getInputStream()执行一次后(可正常读取body数据)，之后再执行就无效了。

@RequestBody

@RequestMapping(value = "/testurl", method = RequestMethod.POST)

@ResponseBody

public ServiceResult TestUrl(HttpServletRequest request,

@RequestBody JSONObject jsonObject){

String username = jsonObject.get("username").toString();

String pwd = jsonObject.get("pwd").toString();

}

@RequestBody 可以使用JSONObject， Map ，或者ObjectDTO绑定body。

@RequestParam

@RequestMapping(value = "/testurl", method = RequestMethod.POST)

@ResponseBody

public ServiceResult TestUrl(HttpServletRequest request,@RequestParam("username")String username,

@RequestParam("pwd")String pwd) {

String txt = username + pwd;

}

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