工程级 React 注册登录全栈级流程分析

npm install create-react-app -g
create-react-app my-app-client

npm install antd -S

npm install react-router-dom -S

ReactDOM.render(
  <Provider store={store}>
    <HashRouter>
      <div className="container">
        <Switch>
          {routes.map((route) => (
            <Route key={route.path} {...route} />
          ))}
        </Switch>
      </div>
    </HashRouter>
  </Provider>,
  document.getElementById("root")
);

import Register from "../pages/register/Register";
import Login from "../pages/login/Login";
import Main from "../pages/main/Main";

export const routes = [
  {
    path: "/register",
    component: Register,
  },
  {
    path: "/login",
    component: Login,
  },
  {
    path: "",
    component: Main,
  },
];

npm install redux react-redux redux-thunk -S
npm install redux-devtools-extension -D

<Layout>
  <Header>
    <Logo />
  </Header>
  <Content>
    <Input type="text"/>
  </Content>
  <Footer>
    <Button type="primary">注册</Button>
  </Footer>
</Layout>

state = {
    username: "",
    password: "",
    againPassword: "",
    type: "",
  };
handleChange = (name, value) => {
    this.setState({
      [name]: value,
    });
  };

express myapp-server -e

npm install nodemon -D

npm install mongoose blueimp-md5 -S

const mongoose = require("mongoose");

mongoose.connect("mongodb://localhost:27017/school-chat");
const connection = mongoose.connection;
connection.on("connected", () => {
  console.log("数据库连接成功");
});

const userSchema = mongoose.Schema({
  username: { type: String, required: true },
  password: { type: String, required: true },
  type: { type: String, required: true },
  ...
});
const UserModel = mongoose.model("user", userSchema);

exports.UserModel = UserModel;

router.post("/register", (req, res) => {
  const { username, password, type } = req.body;
  UserModel.findOne({ username }, (err, user) => {
    if (user) {
      res.send({ code: 1, msg: `用户“${username}”已存在` });
    } else {
      const userModel = new UserModel({ username, password: md5(password), type });
      userModel.save((err, user) => {
        res.cookie("userid", user._id, { maxAge: 1000 * 3600 * 24 * 7 });
        res.send({ code: 0, data: { _id: user._id, username, type } });
      });
    }
  });
});

router.post("/login", (req, res) => {
  const { username, password } = req.body;
  UserModel.findOne({ username, password: md5(password) }, filter, (err, user) => {
    if (user) {
      res.cookie("userid", user._id, { maxAge: 1000 * 3600 * 24 * 7 });
      res.send({ code: 0, data: user });
    } else {
      res.send({ code: 1, msg: "用户名或密码不正确" });
    }
  });
});

npm install axios -S

export default function ajax(url = "", data = {}, type = "GET") {
  if (type === "GET") {
    let queryStr = "";
    for (let key in data) {
      queryStr += `${key}=${data[key]}&`;
    }
    if (queryStr !== "") {
      queryStr = queryStr.slice(0, -1);
      return axios.get(`${url}?${queryStr}`);
    }
  } else {
    return axios.post(url, data);
  }
}

export const reqRegister = (user) => ajax("/register", user, "POST");
export const reqLogin = (username, password) => ajax("/login", { username, password }, "POST");
export const reqUpdate = (user) => ajax("/update", user, "POST");
...

export const register = (user) => {
  const { username, password, againPassword, type } = user;
  if (!username) {
    return errorMsg("用户名不能为空！");
  }
  if (password !== againPassword) {
    return errorMsg("两次密码不一致！");
  }
  return async (dispatch) => {
    const response = await reqRegister({ username, password, type });
    const result = response.data;
    if (result.code === 0) {
      dispatch(authSuccess(result.data));
    } else {
      dispatch(errorMsg(result.msg));
    }
  };
};

function user(state = initUser, action) {
  switch (action.type) {
    case AUTH_SUCCESS:
      return { ...action.data, redirectTo: "/" };
    case ERROR_MSG:
      return { ...state, msg: action.data };
    default:
      return state;
  }
}

export default combineReducers({
  user,
});

import { createStore, applyMiddleware } from "redux";
import thunk from "redux-thunk";
import { composeWithDevTools } from "redux-devtools-extension";
import reducers from "./reducers";

export default createStore(reducers, composeWithDevTools(applyMiddleware(thunk)));

export default connect(
  (state) => ({
    user: state.user,
  }),
  { register }
)(Register);