我正在尝试使用 axios 从我的后端获取数据,但它显示网络错误
I am trying to get data from my backend using axios, but its showing Network error
我有客户端文件夹,其中包含我的反应代码和服务器文件夹,其中包含我的 expressjs 文件。我正在尝试使用 axios 从我支持的 api 获取数据,但出现“网络错误”。服务端和客户端都是运行
server.js
const express = require("express");
const mongoose = require("mongoose");
const app = express();
app.use(express.json({extended:true}));
app.use(express.urlencoded({extended:true}));
const url = "mongodb+srv://pekele:pekele@cluster0.yqaef.mongodb.net/myDatabase?retryWrites=true&w=majority";
mongoose.connect(url)
.then(()=>console.log("connected to database successfully"))
.catch(err=>console.log(err));
app.get("/",(req,res)=> {
res.send("<h1>Welcome Guest</h1>");
});
app.get("/signup",(req,res)=> {
res.json({"id":"1"});
})
app.listen(5000,()=> console.log("Server listening on port 5000"));
下面是我的反应组件的代码
import React, {useState} from 'react';
import axios from "axios";
const Registration = () => {
const [user,setUser] = useState({email:"",password:""});
const handleSubmit = (e) => {
e.preventDefault();
console.log(user);
axios.get('http://localhost:5000/signup')
.then(function (response) {
console.log(response);
})
.catch(function (error) {
console.log("error here")
console.log(error.message);
});
}
return (
<div>
<h1>Registration</h1>
<form onSubmit={handleSubmit}>
<div>Email:</div>
<div><input type="text" name="email" placeholder='Enter your email'
onChange={(e)=>setUser({...user,email:e.target.value})}
/></div>
<div>Password:</div>
<div><input type="password" name="password" placeholder='Enter your password'
onChange={(e)=>setUser({...user,password:e.target.value})}
/></div>
<div><input type="submit" value="Add" /></div>
</form>
</div>
)
}
export default Registration;
你在使用 cors
尝试将此添加到您的服务器端代码
const cors = require('cors');
app.use(cors({origin: true, credentials: true}));
我有客户端文件夹,其中包含我的反应代码和服务器文件夹,其中包含我的 expressjs 文件。我正在尝试使用 axios 从我支持的 api 获取数据,但出现“网络错误”。服务端和客户端都是运行
server.js
const express = require("express");
const mongoose = require("mongoose");
const app = express();
app.use(express.json({extended:true}));
app.use(express.urlencoded({extended:true}));
const url = "mongodb+srv://pekele:pekele@cluster0.yqaef.mongodb.net/myDatabase?retryWrites=true&w=majority";
mongoose.connect(url)
.then(()=>console.log("connected to database successfully"))
.catch(err=>console.log(err));
app.get("/",(req,res)=> {
res.send("<h1>Welcome Guest</h1>");
});
app.get("/signup",(req,res)=> {
res.json({"id":"1"});
})
app.listen(5000,()=> console.log("Server listening on port 5000"));
下面是我的反应组件的代码
import React, {useState} from 'react';
import axios from "axios";
const Registration = () => {
const [user,setUser] = useState({email:"",password:""});
const handleSubmit = (e) => {
e.preventDefault();
console.log(user);
axios.get('http://localhost:5000/signup')
.then(function (response) {
console.log(response);
})
.catch(function (error) {
console.log("error here")
console.log(error.message);
});
}
return (
<div>
<h1>Registration</h1>
<form onSubmit={handleSubmit}>
<div>Email:</div>
<div><input type="text" name="email" placeholder='Enter your email'
onChange={(e)=>setUser({...user,email:e.target.value})}
/></div>
<div>Password:</div>
<div><input type="password" name="password" placeholder='Enter your password'
onChange={(e)=>setUser({...user,password:e.target.value})}
/></div>
<div><input type="submit" value="Add" /></div>
</form>
</div>
)
}
export default Registration;
你在使用 cors
尝试将此添加到您的服务器端代码
const cors = require('cors');
app.use(cors({origin: true, credentials: true}));