中间件的顺序sysaccess.js
路由器不对。
例如:
// "GET /sysaccess/test" will be processed by this middleware
router.get('/:id', (req, res) => {
let id = req.params.id; // id = "test"
Foo.findById(id).exec().then(() => {}); // This line will throw an error because "test" is not a valid "ObjectId"
});
router.get('/test', (req, res) => {
// ...
});
解决方案一:使那些更具体的中间件位于那些更通用的中间件之前。
例如:
router.get('/test', (req, res) => {
// ...
});
router.get('/:id', (req, res) => {
// ...
});
解决方案2: use next
将请求传递给下一个中间件
例如:
router.get('/:id', (req, res, next) => {
let id = req.params.id;
if (id === 'test') { // This is "GET /sysaccess/test"
return next(); // Pass this request to the next matched middleware
}
// ...
});
router.get('/test', (req, res) => {
// ...
});