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
表达已弃用的res.send(body, status)。
使用res.status(status).send(body)或res.sendStatus(status)代替
其他回答
我想以这种方式集中创建错误响应:
app.get('/test', function(req, res){
throw {status: 500, message: 'detailed message'};
});
app.use(function (err, req, res, next) {
res.status(err.status || 500).json({status: err.status, message: err.message})
});
所以我总是有相同的错误输出格式。
PS:当然你可以创建一个对象来扩展标准错误，就像这样:
const AppError = require('./lib/app-error');
app.get('/test', function(req, res){
throw new AppError('Detail Message', 500)
});
'use strict';
module.exports = function AppError(message, httpStatus) {
Error.captureStackTrace(this, this.constructor);
this.name = this.constructor.name;
this.message = message;
this.status = httpStatus;
};
require('util').inherits(module.exports, Error);
根据Express (Version 4+)文档，您可以使用:
res.status(400);
res.send('None shall pass');
http://expressjs.com/4x/api.html#res.status
< = 3.8
res.statusCode = 401;
res.send('None shall pass');
简单的一行;
res.status(404).send("Oh uh, something went wrong");
表达已弃用的res.send(body, status)。
使用res.status(status).send(body)或res.sendStatus(status)代替
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')
