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React框架Umi實戰(2)整合dva開發后臺管理系統

beita / 1644人閱讀

摘要：官方推薦結合使用更配哦，其實他們都是同一位開發者開發的，屬于阿里內部開源框架。但是名字必須為，不然不能自動注冊。只有一個的話，可以不用建目錄?？赡苁俏依斫庥姓`。

umi官方推薦結合dva使用更配哦，其實他們都是同一位開發者開發的，屬于阿里內部開源框架。
1 修改.umirc.js，開啟dva支持 
// ref: https://umijs.org/config/
export default {
  plugins: [
    // ref: https://umijs.org/plugin/umi-plugin-react.html
    ["umi-plugin-react", {
      antd: true,
      dva: true,
      dva: {
          immer: true
        },
      dynamicImport: false,
      title: "umis",
      dll: false,
      hardSource: false,
      routes: {
        exclude: [
          /components//,
        ],
      },
    }],
  ],
}
2 修改layouts

先搞一個后臺的布局,可以參考ANT DESIGN PRO https://pro.ant.design/
layoutsindex.js

import styles from "./index.less";
import { Layout, Menu, Breadcrumb, Icon } from "antd";
import { Component } from "react";
import Link from "umi/link";
import logo from "../assets/logo.svg";
const {Header, Content, Footer, Sider} = Layout;
const SubMenu = Menu.SubMenu;
class BasicLayout extends Component {

  constructor(props) {
    super(props);
    this.state = {
      collapsed: false,
    };
  }

  toggle = () => {
  this.setState({
    collapsed: !this.state.collapsed,
  });
}

render(){
return (
    
        
        

        
          
          
Ant Design Pro

        
       

          
            
            
              
              Users
              
            

            Team}
            >
              Team 1
              Team 2
            
          
        
        
          

            
          

          
              {/*此處可加面包屑*/}
              { this.props.children }
          
          

            Ant Design ?2018 Created by Ant UED
          

        
      
  );
}
}

export default BasicLayout;

layoutsindex.less

.logo {
  height: 64px;
  position: relative;
  line-height: 64px;
  transition: all 0.3s;
  background: #002140;
  overflow: hidden;
  img {
    display: inline-block;
    vertical-align: middle;
    height: 32px;
  }
  h1 {
    color: white;
    display: inline-block;
    vertical-align: middle;
    font-size: 20px;
    margin: 0 0 0 12px;
    font-family: "Myriad Pro", "Helvetica Neue", Arial, Helvetica, sans-serif;
    font-weight: 600;
  }
}

.trigger {
  font-size: 18px;
  line-height: 64px;
  padding: 0 24px;
  cursor: pointer;
  transition: color .3s;
  .logo {
  height: 32px;
  background: rgba(255,255,255,.2);
  margin: 16px;
}
}

.sider {
  min-height: 100vh;
  box-shadow: 2px 0 6px rgba(0, 21, 41, 0.35);
  position: relative;
  z-index: 10;
  &.ligth {
    background-color: white;
    .logo {
      background: white;
      h1 {
        color: #002140;
      }
    }
  }
}

瀏覽器訪問你會看到如下效果：

3 改造users頁面，完成dva整個流程。

在pages下創建users目錄

創建index.js 會生成默認路由http://localhost:8000/users

import { connect } from "dva";
import { Table, Pagination, Popconfirm } from "antd";
import styles from "./users.css";
const PAGE_SIZE = 5;

function Users({ list: dataSource, total, page: current }) {
  function deleteHandler(id) {
    console.warn(`TODO: ${id}`);
  }

  const columns = [
    {
      title: "Name",
      dataIndex: "name",
      key: "name",
      render: text => {text},
    },
    {
      title: "Email",
      dataIndex: "email",
      key: "email",
    },
    {
      title: "Website",
      dataIndex: "website",
      key: "website",
    },
    {
      title: "Operation",
      key: "operation",
      render: (text, { id }) => (
        
          Edit
          
            Delete
          
        
      ),
    },
  ];

  return (
    

      

         record.id}
          pagination={false}
        />
        
      
    
  );
}

function mapStateToProps(state) {
  const { list, total, page } = state.users;
  console.log(state.test);
  return {
    list,
    total,
    page,
  };
}

export default connect(mapStateToProps)(Users);

創建對應的model.js,因為只有一個model所以不需要創建models目錄。但是名字必須為model.js，不然不能自動注冊。


//只有一個model的話，可以不用建models目錄。但名字必須為model。js
import * as usersService from "./service";
export default {
  namespace: "users",
  state: {
    list: [],
    total: null,
  },
  reducers: {
    save(state, { payload: { data: list, total } }) {
      return { ...state, list, total };
    },
  },
  effects: {
    *fetch({ payload: { page } }, { call, put }) {
      const { data} = yield call(usersService.fetch, { page });
      yield put({ type: "save", payload: { data, total: data.length } });
    },
  },
  subscriptions: {
    setup({ dispatch, history }) {
      return history.listen(({ pathname, query }) => {
        if (pathname === "/users") {
          dispatch({ type: "fetch", payload: query });
        }
      });
    },
  },
};


創建service.js 這個不需要約定名稱，你隨便起名字


import request from "../../utils/request";

export function fetch({ page = 1 }) {
  return request(`/api/users?_page=${page}&_limit=5`);
}


創建utils目錄，封裝統一請求api utils
equest.js



import fetch from "dva/fetch";

function checkStatus(response) {
  if (response.status >= 200 && response.status < 300) {
    return response;
  }

  const error = new Error(response.statusText);
  error.response = response;
  throw error;
}

/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default async function request(url, options) {
  const response = await fetch(url, options);

  checkStatus(response);

  const data = await response.json();

  const ret = {
    data
  };
  return ret;
}


創建mock假數據 mockuser.js



export default {
  "/api/users": [
  {
    "id": 1,
    "name": "Leanne Graham",
    "username": "Bret",
    "email": "Sincere@april.biz",
    "address": {
      "street": "Kulas Light",
      "suite": "Apt. 556",
      "city": "Gwenborough",
      "zipcode": "92998-3874",
      "geo": {
        "lat": "-37.3159",
        "lng": "81.1496"
      }
    },
    "phone": "1-770-736-8031 x56442",
    "website": "hildegard.org",
    "company": {
      "name": "Romaguera-Crona",
      "catchPhrase": "Multi-layered client-server neural-net",
      "bs": "harness real-time e-markets"
    }
  },
  {
    "id": 2,
    "name": "Ervin Howell",
    "username": "Antonette",
    "email": "Shanna@melissa.tv",
    "address": {
      "street": "Victor Plains",
      "suite": "Suite 879",
      "city": "Wisokyburgh",
      "zipcode": "90566-7771",
      "geo": {
        "lat": "-43.9509",
        "lng": "-34.4618"
      }
    },
    "phone": "010-692-6593 x09125",
    "website": "anastasia.net",
    "company": {
      "name": "Deckow-Crist",
      "catchPhrase": "Proactive didactic contingency",
      "bs": "synergize scalable supply-chains"
    }
  },
  {
    "id": 3,
    "name": "Clementine Bauch",
    "username": "Samantha",
    "email": "Nathan@yesenia.net",
    "address": {
      "street": "Douglas Extension",
      "suite": "Suite 847",
      "city": "McKenziehaven",
      "zipcode": "59590-4157",
      "geo": {
        "lat": "-68.6102",
        "lng": "-47.0653"
      }
    },
    "phone": "1-463-123-4447",
    "website": "ramiro.info",
    "company": {
      "name": "Romaguera-Jacobson",
      "catchPhrase": "Face to face bifurcated interface",
      "bs": "e-enable strategic applications"
    }
  },
  {
    "id": 4,
    "name": "Patricia Lebsack",
    "username": "Karianne",
    "email": "Julianne.OConner@kory.org",
    "address": {
      "street": "Hoeger Mall",
      "suite": "Apt. 692",
      "city": "South Elvis",
      "zipcode": "53919-4257",
      "geo": {
        "lat": "29.4572",
        "lng": "-164.2990"
      }
    },
    "phone": "493-170-9623 x156",
    "website": "kale.biz",
    "company": {
      "name": "Robel-Corkery",
      "catchPhrase": "Multi-tiered zero tolerance productivity",
      "bs": "transition cutting-edge web services"
    }
  },
  {
    "id": 5,
    "name": "Chelsey Dietrich",
    "username": "Kamren",
    "email": "Lucio_Hettinger@annie.ca",
    "address": {
      "street": "Skiles Walks",
      "suite": "Suite 351",
      "city": "Roscoeview",
      "zipcode": "33263",
      "geo": {
        "lat": "-31.8129",
        "lng": "62.5342"
      }
    },
    "phone": "(254)954-1289",
    "website": "demarco.info",
    "company": {
      "name": "Keebler LLC",
      "catchPhrase": "User-centric fault-tolerant solution",
      "bs": "revolutionize end-to-end systems"
    }
  },
  {
    "id": 6,
    "name": "Mrs. Dennis Schulist",
    "username": "Leopoldo_Corkery",
    "email": "Karley_Dach@jasper.info",
    "address": {
      "street": "Norberto Crossing",
      "suite": "Apt. 950",
      "city": "South Christy",
      "zipcode": "23505-1337",
      "geo": {
        "lat": "-71.4197",
        "lng": "71.7478"
      }
    },
    "phone": "1-477-935-8478 x6430",
    "website": "ola.org",
    "company": {
      "name": "Considine-Lockman",
      "catchPhrase": "Synchronised bottom-line interface",
      "bs": "e-enable innovative applications"
    }
  },
  {
    "id": 7,
    "name": "Kurtis Weissnat",
    "username": "Elwyn.Skiles",
    "email": "Telly.Hoeger@billy.biz",
    "address": {
      "street": "Rex Trail",
      "suite": "Suite 280",
      "city": "Howemouth",
      "zipcode": "58804-1099",
      "geo": {
        "lat": "24.8918",
        "lng": "21.8984"
      }
    },
    "phone": "210.067.6132",
    "website": "elvis.io",
    "company": {
      "name": "Johns Group",
      "catchPhrase": "Configurable multimedia task-force",
      "bs": "generate enterprise e-tailers"
    }
  },
  {
    "id": 8,
    "name": "Nicholas Runolfsdottir V",
    "username": "Maxime_Nienow",
    "email": "Sherwood@rosamond.me",
    "address": {
      "street": "Ellsworth Summit",
      "suite": "Suite 729",
      "city": "Aliyaview",
      "zipcode": "45169",
      "geo": {
        "lat": "-14.3990",
        "lng": "-120.7677"
      }
    },
    "phone": "586.493.6943 x140",
    "website": "jacynthe.com",
    "company": {
      "name": "Abernathy Group",
      "catchPhrase": "Implemented secondary concept",
      "bs": "e-enable extensible e-tailers"
    }
  },
  {
    "id": 9,
    "name": "Glenna Reichert",
    "username": "Delphine",
    "email": "Chaim_McDermott@dana.io",
    "address": {
      "street": "Dayna Park",
      "suite": "Suite 449",
      "city": "Bartholomebury",
      "zipcode": "76495-3109",
      "geo": {
        "lat": "24.6463",
        "lng": "-168.8889"
      }
    },
    "phone": "(775)976-6794 x41206",
    "website": "conrad.com",
    "company": {
      "name": "Yost and Sons",
      "catchPhrase": "Switchable contextually-based project",
      "bs": "aggregate real-time technologies"
    }
  },
  {
    "id": 10,
    "name": "Clementina DuBuque",
    "username": "Moriah.Stanton",
    "email": "Rey.Padberg@karina.biz",
    "address": {
      "street": "Kattie Turnpike",
      "suite": "Suite 198",
      "city": "Lebsackbury",
      "zipcode": "31428-2261",
      "geo": {
        "lat": "-38.2386",
        "lng": "57.2232"
      }
    },
    "phone": "024-648-3804",
    "website": "ambrose.net",
    "company": {
      "name": "Hoeger LLC",
      "catchPhrase": "Centralized empowering task-force",
      "bs": "target end-to-end models"
    }
  }
],
}


訪問http://localhost:8000/users

4 總結


按umi推薦的方式去創建目錄


注意約定名 pages目錄下的所有js都回被默認生成路由，可通過配置排出


省略了model的手動注冊，至于忽略namespace，我試了不行


各個page的model不能相互引用？不是很明白什么意思，我試了每個page都能獲取所有的state，并不是只能獲取屬于自己的。可能是我理解有誤。


沒有看出來umi的好處，只是目錄的區別嗎？



這個 issues 下有關于umi按page分的討論。https://github.com/sorrycc/bl...
希望知道umi核心優勢的小伙伴留言解釋下，前端菜鳥不是很懂。


別忘了關注我 mike啥都想搞


還有其他后端技術分享在我的公眾號。
           
               
                                           
                       
                 
            
                     
             
               

                   
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