如何发现一些错误发送数据对后端的反应

Question

我在一些视频中看到用户名和密码是通过axios发送的这是：

const user_Login = (email, password) => async (dispatch) =>{
dispatch({ type: USER_LOGIN_REQUEST });
try {
const {data} = await axios( {
method: "POST",
data: {
username: email,
password: password
},
withCredentials: true,
url: "http://localhost:3001/login"
});  
dispatch({ type: USER_LOGIN_SUCCESS, payload: data });
} catch (error) {
dispatch({type: USER_LOGIN_FAIL, error: error.message});
}
}

当我得到带有用户名的密码时，我使用了cors。但有一个问题我无法修复或找到它。passport.serializeUser更改用户id两次。并且CCD_ 1不能工作。这是后端：

const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const bodyParser = require('body-parser');
const passport = require('passport');
const LocalStrategy = require('passport-local');
const passportLocalMongoose = require('passport-local-mongoose');
const session = require('express-session');

const app = express();
app.use(cors({
origin: "http://localhost:3000",
credentials: true
}));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:true}));

app.use(session({
secret: "Our little secret.",
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
mongoose.connect(
'mongodb://localhost:27017/testdb'
, {
useNewUrlParser: true,
useCreateIndex: true,
useUnifiedTopology: true
});
const shema = new mongoose.Schema({
username: String,
password: String
});
shema.plugin(passportLocalMongoose);
const User = mongoose.model("users", shema);
// User.plugin( passportLocalMongoose );

passport.use(User.createStrategy());
passport.serializeUser(function(user, done) {
console.log("serilizeUser:", user.id);

done(null, user.id);

});
passport.deserializeUser(function(id, done) {
console.log("deserlizeUser: ", id);
User.findById(id, function(err, user) {
done(err, user);
});
});
app.post('/register', (req, res) => {
console.log(req.body);
User.register( {username: req.body.username}, req.body.password, (err,user)=>{
if(err){
console.log(err);
}
else{
res.send("User successfully registered!");
}
});
});
app.get('/', (req, res) => {
res.send(req.user);
});
app.post('/login', function(req, res){

const _user = new User({
username: req.body.username,
password: req.body.password
});
req.login( _user, function(err){
if(err){
console.log(err);
}
else{
console.log("inside: ", req.user.id);
passport.authenticate("local")(req,res,function(){
console.log("ok!");
})
}
} );
res.send(req.user.id);
});
app.get('/', (req, res) => {
res.send(req.user);
});
app.listen(3001, () => {
console.log(`Server started on port 3001`);
});

当我发送用户名和密码时，我得到控制台这个：

serilizeUser: 607959e213f2692264c31c3b
inside:  607959e213f2692264c31c3b
serilizeUser: 60794a8736e1df1dfc16c37c
ok!

我认为发送用户名和密码有错误。请帮帮我！我5天都解决不了这个问题。

Answer 1

req.login()建立登录会话。passport.authenticate()中间件自动调用req.login()。CCD_ 5将从CCD_ 6调用。

在这里，它们都在使用。只有passport.authenticate()可以创建会话并对其进行身份验证

app.post("/login", function (req, res) {
passport.authenticate("local")(req, res, function () {
console.log("ok!");
res.send(req.user.id);
});
});

我在我当地的网站上查了一下，结果如你所料！！