我试过:
app.get('/', function(req, res, next) {
var e = new Error('error message');
e.status = 400;
next(e);
});
and:
app.get('/', function(req, res, next) {
res.statusCode = 400;
var e = new Error('error message');
next(e);
});
但是总会出现一个500的错误代码。
当前回答
从我在Express 4.0中看到的情况来看，这对我来说是可行的。这是一个验证所需中间件的示例。
function apiDemandLoggedIn(req, res, next) {
// if user is authenticated in the session, carry on
console.log('isAuth', req.isAuthenticated(), req.user);
if (req.isAuthenticated())
return next();
// If not return 401 response which means unauthroized.
var err = new Error();
err.status = 401;
next(err);
}
其他回答
我试着
res.status(400);
res.send('message');
．．但它给了我错误:
(节点:208)UnhandledPromiseRejectionWarning:错误:不能设置报头 在发送之后。
这对我很有用
res.status(400).send(yourMessage);
简单的一行;
res.status(404).send("Oh uh, something went wrong");
从我在Express 4.0中看到的情况来看，这对我来说是可行的。这是一个验证所需中间件的示例。
function apiDemandLoggedIn(req, res, next) {
// if user is authenticated in the session, carry on
console.log('isAuth', req.isAuthenticated(), req.user);
if (req.isAuthenticated())
return next();
// If not return 401 response which means unauthroized.
var err = new Error();
err.status = 401;
next(err);
}
你可以使用res.send('OMG:('， 404);只是res.send (404);
在特快4.0中，他们做对了:)
res.sendStatus(statusCode)
// Sets the response HTTP status code to statusCode and send its string representation as the response body.
res.sendStatus(200); // equivalent to res.status(200).send('OK')
res.sendStatus(403); // equivalent to res.status(403).send('Forbidden')
res.sendStatus(404); // equivalent to res.status(404).send('Not Found')
res.sendStatus(500); // equivalent to res.status(500).send('Internal Server Error')
//If an unsupported status code is specified, the HTTP status is still set to statusCode and the string version of the code is sent as the response body.
res.sendStatus(2000); // equivalent to res.status(2000).send('2000')
