表达:req.query和req.body有什么区别 [英] express: what is the difference between req.query and req.body

问题描述

我想知道req.query和req.body有什么区别?

I want to know what is the difference between req.query and req.body?

是一段使用 req.query 的代码.如果我使用 req.body 而不是 req.query ，会发生什么.

below is a piece of code where req.query is used. what happens if i use req.body instead of req.query.

下面的函数是 $ resource get函数的结果.并且此功能检查用户是否已通过身份验证或正确的用户

below function is called as a result of $resource get function. and this function checks whether the user is authenticated or a right user or not

function isAuthenticated() {
return compose()
// Validate jwt
.use(function(req, res, next) {
  // allow access_token to be passed through query parameter as well
  if(req.query && req.query.hasOwnProperty('access_token')) {
    req.headers.authorization = 'Bearer ' + req.query.access_token;
  }
  validateJwt(req, res, next);
})
// Attach user to request
.use(function(req, res, next) {
  User.findById(req.user._id, function (err, user) {
    if (err) return next(err);
    if (!user) return res.send(401);

    req.user = user;
    next();
  });
});
}

推荐答案

要求.query 包含请求的查询参数.

req.query contains the query params of the request.

例如在 sample.com?foo=bar 中， req.query 将是 {foo:"bar"}

req.body 在请求正文中包含任何内容.通常，它用于 PUT 和 POST 请求.

req.body contains anything in the request body. Typically this is used on PUT and POST requests.

例如要进入sample.com的 POST ，其正文为 {"foo":"bar"} ，标题为 application/json ， req.body 将包含 {foo:"bar"}

For example a POST to sample.com with the body of {"foo":"bar"} and a header of type application/json, req.body would contain {foo: "bar"}

所以要回答您的问题，如果您要使用 req.body 而不是 req.query ，则很可能在体内找不到任何东西，因此无法验证jwt.

So to answer your question, if you were to use req.body instead of req.query, it would most likely not find anything in the body, and therefore not be able to validate the jwt.

希望这会有所帮助.

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