How to implement permission control and user management in uniapp

How to implement permission control and user management in uniapp

With the development of mobile applications, permission control and user management have become an important part of application development. In uniapp, we can use some practical methods to implement these two functions and improve the security and user experience of the application. This article will introduce how to implement permission control and user management in uniapp, and provide some specific code examples for reference.

1. Permission Control

Permission control refers to setting different operating permissions for different users or user groups in an application to protect the security of the application and the integrity of the data. In uniapp, we can use routing guard (beforeEach) to implement permission control. The following is a sample code:

1. Create a permission management module (permission.js) and introduce it in main.js:

// permission.js
const permission = {
  state: {
    roles: [], // 用户角色列表
  },
  mutations: {
    SET_ROLES: (state, roles) => {
      state.roles = roles;
    },
  },
  actions: {
    // 获取用户角色信息
    getUserRoles({ commit }) {
      // TODO: 从后端接口获取用户角色信息，并保存到state中
    },
  },
};

// main.js
import Vue from 'vue';
import store from './store';
import permission from './permission.js';

Vue.prototype.$permission = permission;

2. In the routing file (router.js) uses routing guards for permission control:

import Vue from 'vue';
import Router from 'vue-router';
import store from './store';

Vue.use(Router);

const router = new Router({
  routes: [
    {
      path: '/admin',
      component: () => import('@/views/Admin'),
      meta: { roles: ['admin'] }, // 设置该页面只有admin角色可以访问
    },
    // 其他路由配置...
  ],
});

router.beforeEach((to, from, next) => {
  // 判断目标页面是否设置了需要的角色权限
  if (to.meta.roles && to.meta.roles.length > 0) {
    const { roles } = store.state.permission;
    // 判断当前用户角色是否符合目标页面要求
    if (roles.some(role => to.meta.roles.includes(role))) {
      next();
    } else {
      next({ path: '/403' }); // 没有权限访问，跳转到403页面
    }
  } else {
    next();
  }
});

export default router;

Through the above code, we can control the access permissions of the page based on the user's role information and improve the security of the application.

2. User Management

User management refers to the management of users in the application, including user registration, login, personal information management and other functions. In uniapp, we can use third-party plug-ins or custom components to implement user management. The following is a sample code:

1. Use the uni-id plug-in to implement user management:

uni-id is a front-end and back-end integrated solution based on uniCloud, providing User registration, login, information acquisition and other functions. First, we need to install the uni-id plug-in in HBuilderX:

npm install @dcloudio/uni-id

Then, use the method provided by uni-id in the login page component:

import uniID from '@dcloudio/uni-id';

export default {
  data() {
    return {
      loginData: {
        username: '',
        password: '',
      },
    };
  },
  methods: {
    async login() {
      const res = await uniID.loginByUsername(this.loginData);
      if (res.code === 0) {
        // 登录成功处理逻辑
        // ...
      } else {
        uni.showToast({
          title: res.msg,
          icon: 'none',
        });
      }
    },
  },
};

Through the method provided by uni-id, We can implement the user login function and perform corresponding processing based on the results returned by the login.

2. Use custom components to implement user management:

In addition to using third-party plug-ins, we can also customize components to implement user management. The following is a sample code:

<!-- UserManage.vue -->
<template>
  <div>
    <form @submit.prevent="saveUserInfo">
      <input type="text" v-model="username" placeholder="请输入用户名" />
      <input type="password" v-model="password" placeholder="请输入密码" />
      <button type="submit">保存</button>
    </form>
  </div>
</template>

<script>
export default {
  data() {
    return {
      username: '',
      password: '',
    };
  },
  methods: {
    saveUserInfo() {
      // 保存用户信息逻辑
      // ...
    },
  },
};
</script>

Through custom components, we can implement user registration, login, information storage and other functions to meet the needs of user management in the application.

Summary:

It is very important to implement permission control and user management in uniapp, which can improve the security and user experience of the application. This article introduces how to use routing guards to implement permission control, and provides two methods of uni-id plug-ins and custom components to implement user management. I hope it will be helpful to you. The specific implementation process needs to be adjusted and improved according to specific business needs.

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