redux 当用户从/login/shipping登录到/shipping时，无法重定向

pepwfjgg  于 2022-11-12  发布在  其他
关注(0)|答案(1)|浏览(277)

所以，我有一个简单的例子，当一个未登录的访问者将产品添加到购物车，然后结帐，他们将被重定向到登录/注册页面，这种情况下，它的工作正常.但当一个登录的用户将产品添加到购物车，然后结帐，它仍然重定向到localhost：3000/login/shipping，当它应该是localhost：3000/shipping.
这是CartScreen.js

import React, { useEffect } from "react";
import { useDispatch, useSelector } from "react-redux";
import { Link, useLocation, useNavigate, useParams } from "react-router-dom";
import Message from "../components/Message";
import {
  Row,
  Col,
  ListGroup,
  Image,
  ListGroupItem,
  Button,
  FormControl,
  Card,
} from "react-bootstrap";
import { addToCart, removeFromCart } from "../actions/cartActions";

export const CartScreen = () => {
  const { id } = useParams();
  const { search } = useLocation();
  const history = useNavigate();

  const productId = id;
  const qty = search ? Number(search.split("=")[1]) : 1;

  const dispatch = useDispatch();

  const cart = useSelector((state) => state.cart);
  const { cartItems } = cart;

  console.log(cartItems);

  useEffect(() => {
    if (productId) {
      dispatch(addToCart(productId, qty));
    }
  }, [dispatch, productId, qty]);

  const removeFromCartHandler = (id) => {
    dispatch(removeFromCart(id));
  };
  const checkoutHandler = () => {
    history("/login?redirect=shipping");
  };

  return (
    <Row>
      <Col md={8}>
        <h1>Shopping Cart</h1>
        {cartItems.length === 0 ? (
          <Message>
            Your Cart is Empty <Link to="/">Go Back</Link>
          </Message>
        ) : (
          <ListGroup variant="flush">
            {cartItems.map((item) => (
              <ListGroupItem key={item.product}>
                <Row>
                  <Col md={2}>
                    <Image src={item.image} alt={item.name} fluid rounded />
                  </Col>
                  <Col md={3}>
                    <Link to={`/product/${item.product}`}>{item.name}</Link>
                  </Col>
                  <Col md={2}>${item.price}</Col>
                  <Col md={2}>
                    <FormControl
                      as="select"
                      value={item.qty}
                      onChange={(e) =>
                        dispatch(
                          addToCart(item.product, Number(e.target.value))
                        )
                      }
                    >
                      {[...Array(item.countInStock).keys()].map((x) => (
                        <option key={x + 1} value={x + 1}>
                          {x + 1}
                        </option>
                      ))}
                    </FormControl>
                  </Col>
                  <Col md={2}>
                    <Button
                      type="button"
                      variant="light"
                      onClick={(e) => removeFromCartHandler(item.product)}
                    >
                      <i className="fas fa-trash"></i>
                    </Button>
                  </Col>
                </Row>
              </ListGroupItem>
            ))}
          </ListGroup>
        )}
      </Col>
      <Col md={4}>
        <Card>
          <ListGroup variant="flush">
            <ListGroupItem>
              <h2>
                SubTotal ({cartItems.reduce((acc, item) => acc + item.qty, 0)})
                items
              </h2>
              $
              {cartItems
                .reduce((acc, item) => acc + item.qty * item.price, 0)
                .toFixed(2)}
            </ListGroupItem>
            <ListGroupItem>
              <Button
                type="button"
                className="btn-block"
                disabled={cartItems.length === 0}
                onClick={checkoutHandler}
              >
                Proceed to Checkout
              </Button>
            </ListGroupItem>
          </ListGroup>
        </Card>
      </Col>
    </Row>
  );
};

export default CartScreen;

这里有一个checkoutHandler函数的onClick操作的 checkout 按钮

const checkoutHandler = () => {
history("/login?redirect=shipping");
}

如果是后端问题或者是简单的重定向问题，那么这些是负责处理注册和登录的后端文件。
userController.js

import asyncHandler from "express-async-handler";
import User from "../models/userModel.js";
import mongoose from "mongoose";
import generateToken from "../utils/generateToken.js";

// @desc Auth user & get token
// @route POST /api/users/login
// @access Public

const authUser = asyncHandler(async (req, res) => {
  const { email, password } = req.body;

  const user = await User.findOne({ email });

  if (user && (await user.matchPassword(password))) {
    res.json({
      _id: user._id,
      name: user.name,
      email: user.email,
      isAdmin: user.isAdmin,
      token: generateToken(user._id),
    });
  } else {
    res.status(401);
    throw new Error("Invalid email or password");
  }
});
// @desc Register new user
// @route POST /api/users
// @access Public

const registerUser = asyncHandler(async (req, res) => {
  const { name, email, password } = req.body;

  const userExists = await User.findOne({ email });

  if (userExists) {
    res.status(400);
    throw new Error("user already exists");
  }
  const user = await User.create({
    name,
    email,
    password,
  });

  if (user) {
    res.status(201).json({
      _id: user._id,
      name: user.name,
      email: user.email,
      isAdmin: user.isAdmin,
      token: generateToken(user._id),
    });
  } else {
    res.status(400);
    throw new Error("invalid user data");
  }
});

// @desc Get user profile
// @route GET /api/users/profile
// @access Private

const getUserProfile = asyncHandler(async (req, res) => {
  const user = await User.findById(req.user._id);

  if (user) {
    res.json({
      _id: user._id,
      name: user.name,
      email: user.email,
      isAdmin: user.isAdmin,
    });
  } else {
    res.status(401);
    throw new Error("No user found");
  }
});

// @desc Update user profile
// @route PUT /api/users/profile
// @access Private

const updateUserProfile = asyncHandler(async (req, res) => {
  const user = await User.findById(req.user._id);

  if (user) {
    user.name = req.body.name || user.name;
    user.email = req.body.email || user.email;
    if (req.body.password) {
      user.password = req.body.password;
    }

    const updatedUser = await user.save();

    res.json({
      _id: updatedUser._id,
      name: updatedUser.name,
      email: updatedUser.email,
      isAdmin: updatedUser.isAdmin,
      token: generateToken(updatedUser._id),
    });
  } else {
    res.status(401);
    throw new Error("No user found");
  }
});

export { authUser, getUserProfile, registerUser, updateUserProfile };

userRoutes.js

import express from "express";
import {
  authUser,
  getUserProfile,
  registerUser,
  updateUserProfile,
} from "../controllers/userController.js";
import { protect } from "../middleware/authMiddleware.js";

const router = express.Router();

router.post("/login", authUser);
router.route("/").post(registerUser);
router
  .route("/profile")
  .get(protect, getUserProfile)
  .put(protect, updateUserProfile);

export default router;

authMiddleware.js

import jwt from 'jsonwebtoken'
import asyncHandler from 'express-async-handler'
import User from '../models/userModel.js'

const protect = asyncHandler(async(req, res, next) => {
    let token

    if(req.headers.authorization && req.headers.authorization.startsWith('Bearer')){
        try {
            token = req.headers.authorization.split(' ')[1]
            const decoded = jwt.verify(token, process.env.JWT_SECRET)
            //console.log(decoded)
            req.user = await User.findById(decoded.id).select('-password')
            //next()
        } catch (error) {
            console.error(error)
            res.status(401)
            throw new Error ('Not authorization, token failed')
        }
    }
    if(!token){
        res.status(401)
        throw new Error("Not authorized, no token")
    }

    next()
})

export {protect}

这些是负责注册和登录的redux文件。
userActions.js

import {
  USER_DETAILS_FAIL,
  USER_DETAILS_REQUEST,
  USER_DETAILS_SUCCESS,
  USER_LOGIN_FAIL,
  USER_LOGIN_REQUEST,
  USER_LOGIN_SUCCESS,
  USER_LOGOUT,
  USER_REGISTER_FAIL,
  USER_REGISTER_REQUEST,
  USER_REGISTER_SUCCESS,
  USER_UPDATE_PROFILE_FAIL,
  USER_UPDATE_PROFILE_REQUEST,
  USER_UPDATE_PROFILE_SUCCESS,
} from "../constants/userConstants";
import axios from "axios";

export const login = (email, password) => async (dispatch) => {
  try {
    dispatch({
      type: USER_LOGIN_REQUEST,
    });
    const config = {
      headers: {
        "content-type": "application/json",
      },
    };
    const { data } = await axios.post(
      "/api/users/login",
      { email, password },
      config
    );

    dispatch({
      type: USER_LOGIN_SUCCESS,
      payload: data,
    });

    localStorage.setItem("userInfo", JSON.stringify(data));
  } catch (error) {
    dispatch({
      type: USER_LOGIN_FAIL,
      payload:
        error.message && error.response.data.message
          ? error.response.data.message
          : error.message,
    });
  }
};

export const logout = () => (dispatch) => {
  localStorage.removeItem("userInfo");
  dispatch({ type: USER_LOGOUT });
};

export const register = (name, email, password) => async (dispatch) => {
  try {
    dispatch({
      type: USER_REGISTER_REQUEST,
    });
    const config = {
      headers: {
        "content-type": "application/json",
      },
    };
    const { data } = await axios.post(
      "/api/users",
      { name, email, password },
      config
    );

    dispatch({
      type: USER_REGISTER_SUCCESS,
      payload: data,
    });

    dispatch({
      type: USER_LOGIN_SUCCESS,
      payload: data,
    });

    localStorage.setItem("userInfo", JSON.stringify(data));
  } catch (error) {
    dispatch({
      type: USER_REGISTER_FAIL,
      payload:
        error.message && error.response.data.message
          ? error.response.data.message
          : error.message,
    });
  }
};

export const getUserDetails = (id) => async (dispatch, getState) => {
  try {
    dispatch({
      type: USER_DETAILS_REQUEST,
    });

    const {
      userLogin: { userInfo },
    } = getState();
    const config = {
      headers: {
        "content-type": "application/json",
        Authorization: `Bearer ${userInfo.token}`,
      },
    };
    const { data } = await axios.get(`/api/users/${id}`, config);

    dispatch({
      type: USER_DETAILS_SUCCESS,
      payload: data,
    });
  } catch (error) {
    dispatch({
      type: USER_DETAILS_FAIL,
      payload:
        error.message && error.response.data.message
          ? error.response.data.message
          : error.message,
    });
  }
};

export const updateUserProfile = (user) => async (dispatch, getState) => {
  try {
    dispatch({
      type: USER_UPDATE_PROFILE_REQUEST,
    });

    const {
      userLogin: { userInfo },
    } = getState();
    const config = {
      headers: {
        "content-type": "application/json",
        Authorization: `Bearer ${userInfo.token}`,
      },
    };
    const { data } = await axios.put(`/api/users/profile`, user, config);

    dispatch({
      type: USER_UPDATE_PROFILE_SUCCESS,
      payload: data,
    });
  } catch (error) {
    dispatch({
      type: USER_UPDATE_PROFILE_FAIL,
      payload:
        error.message && error.response.data.message
          ? error.response.data.message
          : error.message,
    });
  }
};

userReducers.js

import {
  USER_DETAILS_FAIL,
  USER_DETAILS_REQUEST,
  USER_DETAILS_SUCCESS,
  USER_LOGIN_FAIL,
  USER_LOGIN_REQUEST,
  USER_LOGIN_SUCCESS,
  USER_LOGOUT,
  USER_REGISTER_FAIL,
  USER_REGISTER_REQUEST,
  USER_REGISTER_SUCCESS,
  USER_UPDATE_PROFILE_FAIL,
  USER_UPDATE_PROFILE_REQUEST,
  USER_UPDATE_PROFILE_SUCCESS,
} from "../constants/userConstants";

export const userLoginReducer = (state = {}, action) => {
  switch (action.type) {
    case USER_LOGIN_REQUEST:
      return { loading: true };
    case USER_LOGIN_SUCCESS:
      return { loading: false, userInfo: action.payload };
    case USER_LOGIN_FAIL:
      return { loading: false, error: action.payload };
    case USER_LOGOUT:
      return {};
    default:
      return state;
  }
};

export const userRegisterReducer = (state = {}, action) => {
  switch (action.type) {
    case USER_REGISTER_REQUEST:
      return { loading: true };
    case USER_REGISTER_SUCCESS:
      return { loading: false, userInfo: action.payload };
    case USER_REGISTER_FAIL:
      return { loading: false, error: action.payload };
    default:
      return state;
  }
};

export const userDetailsReducer = (state = { user: {} }, action) => {
  switch (action.type) {
    case USER_DETAILS_REQUEST:
      return { ...state, loading: true };
    case USER_DETAILS_SUCCESS:
      return { loading: false, user: action.payload };
    case USER_DETAILS_FAIL:
      return { loading: false, error: action.payload };
    default:
      return state;
  }
};

export const userUpdateProfileReducer = (state = {}, action) => {
  switch (action.type) {
    case USER_UPDATE_PROFILE_REQUEST:
      return { ...state, loading: true };
    case USER_UPDATE_PROFILE_SUCCESS:
      return { loading: false, success: true, userInfo: action.payload };
    case USER_UPDATE_PROFILE_FAIL:
      return { loading: false, error: action.payload };
    default:
      return state;
  }
};
redux

1条答案

按热度按时间
h6my8fg2

h6my8fg21#

我有同样的问题很难，我解决了它与改变LoginScreen文件，在第一次我是从window.location获得位置值，这就是为什么它不为我工作的原因，在改变LoginScreen文件中的代码后：

const location = window.location;
const redirect = location.search ? location.search.split('=')[1] : '';

至：

import { useLocation } from 'react-router-dom';
...
const location = useLocation();
const redirect = location.search ? location.search.split('=')[1] : '';
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