Question

var express = require('express');

var exampleRouter = express.Router();

exampleRouter.get([
    '/example/cat/:id/subcat/:subId', /*1st URL*/
    '/example/:id/:subId/', /*2nd URL*/
    ],function(req, res){

if( *1st url condition*){ // It should enter here
  /*do something..*/
}else if( *2nd url condition* ){
  /*do something..*/
}

});

假设来自浏览器的请求是这样的 http://www.example.com/example/cat/1/subcat/2

第一个Url条件应该是什么？

Answer 1

您可以使用originalUrl或path：

console.log(req.originalUrl)

在你的情况下（试试）：

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

projectRouter.get([
    '/example/cat/:id/subcat/:subId', /*1st URL*/
    '/example/:id/:subId/', /*2nd URL*/
    ],function(req, res){

    if(req.url == "/example/cat/:id/subcat/:subId"){ 
        // It should enter here do something..*/
    } else if(req.url == "/example/:id/:subId/"){
        // do something..
    }    
});

或（更干净）：

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

projectRouter.get('/example/cat/:id/subcat/:subId',function(req, res){
    // It should enter here do something..    
});

projectRouter.get('/example/:id/:subId/',function(req, res){
    // Second route
});

第二种方式更常见。

Answer 2

这样的事情可能有用......

projectRouter.get([
    '/example/cat/:id/subcat/:subId', /*1st URL*/
    '/example/:id/:subId/', /*2nd URL*/
    ],function(req, res){

    var param = req.url.replace(/^\/|\/$/g, '').split('/');

    if(param[1] == "cat" && param[3] == "subcat"){ 

        // It should enter here do something..*/

    } else {

        // do something..

    }    
});

NodeJs / Expressjs，数组中的多个路由路径，如何安装哪一个？

2 个答案: