我正在使用React 0.14，nodejs，expressjs和mongodb制作Web应用程序。该应用程序是一个URL缩短程序。当用户输入URL时，我生成较短的URl。我在以下服务器上运行它：http://localhost:3000
EG。输入：http://test.com 输出：http://localhost:3000/xyz
localhost：3000是我的主机，xyz是一个随机代码，我生成并保存在数据库中作为输入的URL。 直到现在我能够生成缩短的URL，但是当我尝试通过粘贴浏览器来访问该URL时，我收到了react-router错误： 警告：[react-router]位置“/ xyz”与任何路线都不匹配。
如何在此处拨打电话？因为组件尚未安装且没有相同的路由。这是我的文件：
server.js
var express = require('express')
var mongoose = require('mongoose')
var path = require('path')
var bodyParser = require("body-parser");
var app = express()
var port = process.env.PORT || 3000
//controllers
var urlController = require("./controllers/urlController");
/*
To serve static files such as images, CSS files, and JavaScript files, use the express.static built-in middleware function in Express.
*/
//Express request pipeline
app.use(express.static(path.join(__dirname,"../client")))
app.use(bodyParser.json())
app.use("/api", urlController);
/*
Your server must be ready to handle real URLs. When the app first loads at / it will probably work, but as the user navigates around and then hits refresh at /dashboard your web server will get a request to /dashboard. You will need it to handle that URL and include your JavaScript application in the response.
*/
app.get('*', function (request, response){
response.sendFile(path.resolve(__dirname, '../client', 'index.html'))
})
app.listen(port, function () {
console.log('Example app listening on port 3000!')
});
// Connect to our mongo database
mongoose.connect('mongodb://localhost/shortUrl');
/*var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function() {
console.log("mongo connected")
});*/
urlcontroller.js
var router = require("express").Router();
var Utility = require("../utility");
var Url = require("../data/url-schema");
router.route("/urls").post(addUrl).get(getUrl);
function addUrl(req, res) {
/*
Checks if the requested url already exists in the databse.
*/
Url.findOne({longUrl:req.body.longUrl}, function(err, data) {
if (err)
res.send(err);
/*
If the requested url already exits in the database then return that particular data
*/
else if(data) {
console.log("already exists",data)
res.send("http://localhost:3000/"+data.code);
} else {
var url = new Url({
code : Utility.randomString(6,"abcdefghijklm"),
longUrl : req.body.longUrl
});
console.log("in last else data created",url)
/*
If the requested url doesn't exist in the database then save the data in the database
*/
url.save(function (err, data) {
console.log(data)
if (err)
res.send(err);
else
res.send("http://localhost:3000/"+data.code);
});
//res.send("http://localhost/",data.code)
}
});
}
function getUrl(req, res) {
console.log("url--->",req.query.query)
var reg = req.query.query.split('/')
console.log("reg", reg)
//var reg =
Url.findOne({code:reg[3]}, function(err, data){
//res.send(data.longUrl)
console.log("data", data)
if(data)
res.redirect(302, data.longUrl);
//res.send(data.longUrl)
});
}
module.exports = router;
index.js
"use strict";
import React from 'react'
import { render } from 'react-dom'
import { Router, Route, Link, browserHistory } from 'react-router'
//loading jquery
//--------------------------------Isssueee------------------------------
/*import jQuery from 'jquery';
$ = jQuery
*/
//--------------------------------Isssueee------------------------------
/*Require own custom files*/
import App from './app';
import About from './about';
import Dashboard from './dashboard';
import '../css/style.css';
/*Require Bootstrap*/
import '../css/libs/bootstrap.min.css';
import './libs/bootstrap.min.js'
render((
<Router history={browserHistory}>
<Route path="/" component={App}>
<Route path="about" component={About}/>
<Route path="dashboard" component={Dashboard}/>
</Route>
</Router>
), document.getElementById('app'))
dashboard.js
"use strict"
import React from 'react'
import ReactDOM from 'react-dom'
import * as rest from './rest'
import * as utility from './utility'
import { Router, Route, Link, browserHistory } from 'react-router'
class Dashboard extends React.Component {
constructor(props) { //Read
super(props); //Doubt
this.state = {
msg : '',
url : ''
};
}
componentWillMount() {
//utility.extractCode(window.location);
console.log(window.location)
// console.log("loc----",str)
}
setMsg(msg) {
this.setState({
msg : msg
})
}
shortenURL() {
var self = this;
/*
* ReactDOM.findDOMNode(this.refs.Url) - bind is used on the click event of button since es6 doesnot give autobinding as in React.createClass()
*/
let longUrl = ReactDOM.findDOMNode(this.refs.Url).value.trim();
if(longUrl !== ""){
if(utility.validateUrl(longUrl)){
this.setMsg("")
rest.addUrl(longUrl)
.then(function(data, error){
self.setState({
url: data.entity
})
});
}
else {
this.setMsg("URL not valid")
}
} else {
this.setMsg("Please enter a URL")
}
// rest.getUrl(window.location.href)
// .then(function(data){
// console.log("in return data", data)
// //Router.transitionTo(data.entity)
// })
}
render() {
return (
<div className="container">
<form>
<div className="create-board">
<div className="board-header">
<h3 className="board-header-h3">URL Shortener</h3>
</div>
<div className="control-group txt-control">
<div className="form-group">
<label className="control-label" htmlFor="inputURL">Enter your long URL here</label>
<input type="text" ref="Url" className="form-control" placeholder="Enter Your Long URL here"></input>
</div>
<div className="control-group but-control">
<div className="controls">
<button className="btn btn-info" type="button" onClick={this.shortenURL.bind(this)}>Shorten</button>
</div>
</div>
<label>{this.state.msg}</label>
<div><a href={this.state.url} target="_blank">{this.state.url}</a></div>
</div>
</div>
</form>
</div>
)
}
}
export default Dashboard;
rest.js
"use strict";
import Rest from 'rest'
import mime from 'rest/interceptor/mime'
import errorCode from 'rest/interceptor/errorCode'
var config = require('../config.json')
var client = Rest.wrap(mime, {
mime: 'application/json'
})
.wrap(errorCode, {
code: 400
});
export function addUrl(url) {
let postObjects = {
path : config.path,
method : "POST",
entity : {
longUrl : url
},
headers : {
"crossDomain": true,
"Access-Control-Allow-Origin": "*",
"Access-Control-Allow-Headers": "X-Requested-With"
},
params :{}
}
return client(postObjects)
}
export function getUrl(location) {
console.log("location-------->",location)
let postObjects = {
path : config.path,
method : "GET",
entity : {
location : location
},
headers : {
"crossDomain": true,
"Access-Control-Allow-Origin": "*",
"Access-Control-Allow-Headers": "X-Requested-With"
},
params :{
query: location
}
}
return client(postObjects)
}
答案 0 :(得分：1)
根据我的理解，您希望能够访问节点服务器上的/xyz并且不让React Router为您处理该路径？
如果是这样，您需要在服务器上指定处理程序并将其放在捕获所有路径之前。
app.get('/xyz', () => {});
app.get("*", () => {});