Javascript Node Js express路由器不工作
我正在学习NodeJS和express,我正在学习express路由,我在rest.js中有以下代码Javascript Node Js express路由器不工作,javascript,node.js,web-services,express,Javascript,Node.js,Web Services,Express,我正在学习NodeJS和express,我正在学习express路由,我在rest.js中有以下代码 const http = require('http'); const express = require('express'); const widgetRouter = require('./rest/widgets'); const app1 = express(); const server = http.createServer(app1); app1.get('/
const http = require('http');
const express = require('express');
const widgetRouter = require('./rest/widgets');
const app1 = express();
const server = http.createServer(app1);
app1.get('/api',widgetRouter);
server.listen(3000,function(){
console.log('server started in port 3000');
});
const app = express();
我还有widgets.js文件
const express = require('express');
const widgetRouter = express.Router();
widgetRouter.route("/widgets")
.get(function(req,res){
res.json({"abc":"hello"});
})
.post();
widgetRouter.route("/widgets/:widgetId")
.get()
.put()
.delete();
module.exports = widgetRouter;
但是,当我尝试从postman测试rest api()时,它说无法获取/api/widgets您已经导入并初始化了express模块,但随后您使用http模块启动了一个服务器。您应仅使用Express: 您还应该使用
app.use('/api',widgetRouter)
而不是app.get('/api',widgetRouter)
,后者是一种快速中间件
const express = require('express');
const app = express();
const widgetRouter = require('./rest/widgets');
app.use('/api', widgetRouter);
app.get('/', function(req, res) {
res.send('Home');
});
app.listen(3000, function(){
console.log('server started in port 3000');
});
你也可以试试
rest.js
const express = require('express');
const http = require('http');
const router = express.Router();
const app = express();
require('./widgets')(app, router);
app.get('/', function(req, res) {
res.send('Home');
});
app.listen(3000,function(){
console.log('server started in port 3000');
});
widgets.js
module.exports = function(app, router){
router.route("/widgets")
.get(function(req,res){
res.json({"abc":"hello"});
})
.post();
router.route("/widgets/:widgetId")
.get()
.put()
.delete();
app.use('/api', router);
});
我也用过这个,我试着从rest.js中的app1.listen开始,但没有work@ujjwalsingh它给了你什么错误?可能widgetRouter的需求路径错误,或者您仍然在使用两个不同的Express实例(app和app1),并且您将它们混合在一起(应该只有一个)确实有效,但方法似乎很复杂,不适合初学者