Rumah > Artikel > hujung hadapan web > React如何实现登录?react登录模块的详解
本篇文章主要的介绍了关于react的登录模块,详细的介绍了关于react的登录情况。现在就让我们一起来看看文章的正文吧
Login页面提交登录 handleSubmit(), 中直接调用API请求。请求登录成功后跳转 history.push(nextPathname, null);
实现方式参照 http://blog.csdn.net/qq_27384769/article/details/78775835
Login页面提交登录 handleSubmit() 后,通过saga发起异步请求。
请求成功后 发起action 调用reducer. 重新加载Login页面。
在Login页面生命周期componentWillReceiveProps 验证登录信息请求跳转。
以下是第二种登录方式的讲解
auth:{ type: "COMPLOGIN/RECEIVE_DATA", isFetching: false, data: {uid: 1, permissions: Array(5), role: "系统管理员", roleType: 1, userName: "系统管理员"} }
componentWillReceiveProps 登录成功后 调整
handleSubmit 处理提交登录
import React from 'react';import {Form, Icon, Input, Button, Checkbox} from 'antd';import {connect} from 'react-redux';import {bindActionCreators} from 'redux';import {findData, receiveData} from '../actions';import {selectVisibleMenuResourceTreeTable} from '../selector';const FormItem = Form.Item;class Login extends React.Component { componentWillMount() { const {receiveData} = this.props; receiveData(null, 'auth'); } componentWillReceiveProps(nextProps) { const {auth: nextAuth = {}} = nextProps; if (nextAuth.data && nextAuth.data.uid) { // 判断是否登陆 localStorage.setItem('user', JSON.stringify(nextAuth.data)); this.props.history.push('/', null); } } handleSubmit = (e) => { e.preventDefault(); this.props.form.validateFields((err, values) => { if (!err) { console.log('Received values of form: ', values); const {findData} = this.props; if (values.userName === 'admin' && values.password === 'admin') findData({ funcName: 'admin', stateName: 'auth' }); if (values.userName === 'guest' && values.password === 'guest') findData({ funcName: 'guest', stateName: 'auth' }); } }); }; gitHub = () => { console.log("gitHub"); }; render() { const {getFieldDecorator} = this.props.form; return ( 434e1358c9378ac3fd33b911e780149e b2394c444f081e0017d1642dfc84f1f8 c92ea6d2badfaeb250216ed853bbdbb2 45a2772a6b6107b401db3c9b82c049c2React Admin54bdf357c58b8a65c66d7c19c8e4d114 94b3e26ee717c64999d7867364b1b4a3 184b34f4f105d6516fe712766a9e325a b991a1338e3038b10035bb6940ac6193 {getFieldDecorator('userName', { rules: [{required: true, message: '请输入用户名!'}], })( 501c34e1e18ea140ee629fc657f756aa} placeholder="管理员输入admin, 游客输入guest"/> )} ef807bb895304b2f6a1f66b2641ea569 b991a1338e3038b10035bb6940ac6193 {getFieldDecorator('password', { rules: [{required: true, message: '请输入密码!'}], })( a702425267d3239dc21f20d5c644eaaf} type="password" placeholder="管理员输入admin, 游客输入guest"/> )} ef807bb895304b2f6a1f66b2641ea569 b991a1338e3038b10035bb6940ac6193 {getFieldDecorator('remember', { valuePropName: 'checked', initialValue: true, })( 69393f9a46ae20607b893bed10218172记住我fc4d79e34ad347b99c684660ce4ccba3 )} cca3a973c05f7502e090180a02c32514忘记密码5db79b134e9f6b82c0b36e0489ee08ed 95b3f5ad236f0c0143abd915a9cd3964 登录 a1cb88e6789f399807801ea3799938af 或 6170e8999ab19ec641e0422470b16d5c现在就去注册!5db79b134e9f6b82c0b36e0489ee08ed e388a4556c0f65e1904146cc1a846bee 7baa8ae66257a5658535c02e56eb333a(第三方登录) 94b3e26ee717c64999d7867364b1b4a3 ef807bb895304b2f6a1f66b2641ea569 70a2c5d410e290aa58cb7e59d41eaf55 94b3e26ee717c64999d7867364b1b4a3 94b3e26ee717c64999d7867364b1b4a3 ); } }const mapStateToPorps = state => { return { auth: selectVisibleMenuResourceTreeTable(state) } };const mapDispatchToProps = dispatch => ({ findData: bindActionCreators(findData, dispatch), receiveData: bindActionCreators(receiveData, dispatch) });export default Form.create()(connect(mapStateToPorps, mapDispatchToProps)(Login));
findData 点击按钮发起请求
requestData 调用API前
requestData 调用API 获取到数据
import * as type from './actionTypes';export const findData = (data) => { let {funcName, stateName} = data; return { type: type.COMP_LOGIN_FIND_DATA, funcName, stateName } }export const requestData = category => ({ type: type.COMP_LOGIN_REQUEST_DATA, category });export const receiveData = (data, category) => ({ type: type.COMP_LOGIN_RECEIVE_DATA, data, category });
export const COMP_LOGIN_FIND_DATA = 'COMPLOGIN/FIND_DATA';export const COMP_LOGIN_REQUEST_DATA = 'COMPLOGIN/REQUEST_DATA';export const COMP_LOGIN_RECEIVE_DATA = 'COMPLOGIN/RECEIVE_DATA';
import React from 'react';import Bundle from '../../../bundle/views/bundle';import * as actions from './actions';const view = (props) => { return ( 42c9814113858c7668de4a776bc31ec5 import("./lazy")}> {(View) => { return 2fb732b7199e4f5e49a9d32783267755 }} 2075647a73e9b735dd611345836fffdd ); };export {actions, view};
根据组件加载对应的 sagas\reducer\view
reducer 中的数据结构:[compLoginName]: compLoginReducer
import compLoginSagas from './sagas';import compLoginReducer from './reducer';import view from './views/Login';import {UumsCompsReducerNames} from '../../constants';const compLoginName = UumsCompsReducerNames.compLogin;const reducer = { [compLoginName]: compLoginReducer };const sagas = { [compLoginName]: compLoginSagas };export {sagas, reducer, view};
纯函数
export default (state = {}, action) => { const {type} = action; switch (type) { case types.COMP_LOGIN_REQUEST_DATA: { return { ...state, type: type, isFetching: true } } case types.COMP_LOGIN_RECEIVE_DATA: return {...state, type: type,isFetching: false, data: action.data}; default: return {...state}; } }
异步调用
import * as http from '../axios/index';import {call, put, takeLatest} from 'redux-saga/effects';import {requestData, receiveData} from './actions';import {COMP_LOGIN_FIND_DATA} from './actionTypes';export const fetchData = ({funcName, params}) => { return http[funcName](params).then(res => { return res; }); };function* fetchLoginInfo(data) { try { let {stateName} = data; yield put(requestData()); const result = yield call(fetchData, data); yield put(receiveData(result, stateName)); } catch (e) { console.log(e); } }function* sagas() { yield takeLatest(COMP_LOGIN_FIND_DATA, fetchLoginInfo); }export default sagas;
记忆组件 selector
import {createSelector} from 'reselect';const getCompLoginData = (state) => state.compLoginData;export const selectVisibleMenuResourceTreeTable = createSelector( [getCompLoginData], (compLoginData) => compLoginData );
本篇文章到这就结束了(想看更多就到PHP中文网React使用手册栏目中学习),有问题的可以在下方留言提问。
Atas ialah kandungan terperinci React如何实现登录?react登录模块的详解. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!