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
异步方式:
myNodeJs.processAsync(pays)
.then((result) => {
myLog.logger.info('API 200 OK');
res.statusCode = 200;
res.json(result);
myLog.logger.response(result);
})
.fail((error) => {
if (error instanceof myTypes.types.MyError) {
log.logger.info(`My Custom Error:${error.toString()}`);
res.statusCode = 400;
res.json(error);
} else {
log.logger.error(error);
res.statusCode = 500;
// it seems standard errors do not go properly into json by themselves
res.json({
name: error.name,
message: error.message
});
}
log.logger.response(error);
})
.done();
其他回答
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);
}
简单的一行;
res.status(404).send("Oh uh, something went wrong");
与一些(可能是较旧的?)express版本捆绑在一起的errorHandler中间件的版本似乎对状态代码进行了硬编码。另一方面，这里记录的版本:http://www.senchalabs.org/connect/errorHandler.html可以让您做您想做的事情。所以，也许可以尝试升级到最新版本的express/connect。
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')
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');
