javascript - 表达 js 流行为

Question

我需要了解使用路由在 Express 应用程序中流程的工作原理， 我有这些路线

app.use(require('./routes/reportsRouter'));
app.use(require('./routes/crewsRouter'));
app.use(require('./routes/api'));
app.use(require('./routes/filesRouter'));

现在在 ./routes/crewsRouter 中我有以下代码

var express = require('express');
var router = express.Router(); 
router.use(function(req, res, next) {

  var url = req.url;
  //..... Edit URL if Contains // empty parm 
  // crews//today; correct Url crews/all/today
  // this give me a list of all jobs for all crews for today. 
  console.log("CrewsRouter: ", req.method + ".( " + url + " )");
  next(); 
});
router.get('/crews', function(req, res) {
    if (!req.params.key) { next(); }
    res.render('crewsView',{
        pageTitle:'All-Crews',
        pageID:'crews', 
        crewInfo: {"aka": "all"},
        reqOptions: ''
    });

});
router.get('/crews/:leadId?/:options?', function(req, res) {....}
module.exports = router;

和 reportsRou​​ter.js

var express = require('express');
var router = express.Router();

router.use(function(req, res, next) {

    // log each request to the console
    console.log("ReportsRouter: ", req.method + ".( " + req.url + " )");
    // continue doing what we were doing and go to the route
    next(); 
});

router.get('/reports', function(req, res) {
    //var data = req.app.get('appData')

    res.render('reportsView',{
        pageTitle:'Reports',
        pageID:'reports'        
    });
});
module.exports = router;

无论我请求什么路线，我的行为都是如此 两个 route.use 都在运行。这是正常现象吗？我可以采取什么措施来阻止这种行为。

Answer 1

let crewsRouter = require('routes/crewsRouter');
...

app.use('/crews', crewsRouter);
app.use('/reports', reportsRouter);

# 工作人员

...
router.get('/', function(req, res) {
    ... # this used to be your '/crews' handler
}

# 份报告

...
router.get('/', function(req, res) {
    ... # this used to be your '/reports' handler
}