<aside> 💡 如果没有分页拦截器，MyBatisPlug分页不会生效

</aside>

配置分页拦截器

@Configuration
public class MyBatisPlusConfig {
    @Bean
    public MybatisPlusInterceptor paginationInterceptor(){
        MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor(DbType.MYSQL);
        mybatisPlusInterceptor.addInnerInterceptor(paginationInnerInterceptor);
        return mybatisPlusInterceptor;
    }
}

Controller

@GetMapping("/list")
public Result<Map<String, Object>> getUserList(@RequestParam(value = "username", required = false) String username,
                                               @RequestParam(value = "phone", required = false) String phone,
                                               @RequestParam(value = "pageNo") Long pageNo,
                                               @RequestParam(value = "pageSize") Long pageSize) {
    LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
    queryWrapper.eq(StringUtils.hasLength(username), User::getUsername, username);
    queryWrapper.eq(StringUtils.hasLength(phone), User::getPhone, phone);
    queryWrapper.orderByDesc(User::getId);

    Page<User> page = new Page<>(pageNo, pageSize);
    userService.page(page, queryWrapper);

    HashMap<String, Object> map = new HashMap<>();
    map.put("total", page.getTotal());
    map.put("rows", page.getRecords());
    return Result.success(map);
}

前端，如何发起请求

1. 在src/api/userApi.js定义request方法

import request from '@/utils/request'

export default {
  getUserList(searchModel) {
    return request({
      url: '/user/list',
      method: 'get',
      params: searchModel
    })
  },
}

1. user.vue进行调用

import userApi from '@/api/userApi'

methods: {
	data() {
		userList: [],
		total: 0,
	},
	getUserList() {
      userApi.getUserList(this.searchModel).then(resp => {
        this.userList = resp.data.rows;
        this.total = resp.data.total;
      })
    },
}

1. 源文件提示，这是是把service导出了，然后步骤1中重命名为了request

import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 20000) {
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        // to re-login
        MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
          confirmButtonText: 'Re-Login',
          cancelButtonText: 'Cancel',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service