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HomeWeb Front-endJS TutorialBootstrap4 and Vue2 implement paging query function (code attached)

This time I will bring you Bootstrap4 and Vue2 to implement the paging query function (with code), what are the precautions for Bootstrap4 and Vue2 to implement the paging query function, the following is the actual combat Let’s take a look at the case.

Write in front

The project is designed to separate the front and back ends, using Nginx as the front-end resource server, and at the same time realizing the reverse proxy of the back-end service. The background is a Java Web project, using Tomcat to deploy services.

  1. Front-end framework: Bootstrap4, Vue.js2

  2. Backend framework: spring boot, spring data JPA

  3. Development tools: IntelliJ IDEA, Maven

How to use Bootstrap Vue to implement dynamic table, data addition and deletion and other operations, please check out Using Bootstrap Vue.js to implement dynamic display, addition and deletion of tables. After the explanation is completed, the topic of this article begins.

1. Use Bootstrap to build a table

Table area

<p>
   </p>
                                                                                                                                                 
序号会员号姓名手机号办公电话邮箱地址状态
{{pageNow*10 + index+1}}{{user.id}}{{user.username}}{{user.mobile}}{{user.officetel}}{{user.email}}正常注销
  

Paging area

<p>
   </p>
        
  •            
  •     
  •           
  •     
  •      {{n}}     
  •     
  •           
  •     
  •           
  •    
  

2. Initialize VueObject and data

Create Vue object

var vueApp = new Vue({
  el:"#vueApp",
  data:{
   userList:[],
   perPage:10,
   pageNow:0,
   totalPages:0,
   checkedRows:[]
  },
  methods:{
   switchToPage:function (pageNo) {
    if (pageNo = this.totalPages){
     return false;
    }
    getUserByPage(pageNo);
   }
  }
 });

Initialization data

function getUserByPage(pageNow) {
 $.ajax({
  url:"/user/"+pageNow,
  success:function (datas) {
  vueApp.userList = datas.content;
  vueApp.totalPages = datas.totalPages;
  vueApp.pageNow = pageNow;
  },
  error:function (res) {
  console.log(res);
  }
 });
 }

Complete js code:

<script>
 var vueApp = new Vue({
 el:"#vueApp",
 data:{
  userList:[],
  perPage:10,
  pageNow:0,
  totalPages:0,
  checkedRows:[]
 },
 methods:{
  switchToPage:function (pageNo) {
  if (pageNo < 0 || pageNo >= this.totalPages){
   return false;
  }
  getUserByPage(pageNo);
  }
 }
 });
 getUserByPage(0);
 function getUserByPage(pageNow) {
 $.ajax({
  url:"/user/"+pageNow,
  success:function (datas) {
  vueApp.userList = datas.content;
  vueApp.totalPages = datas.totalPages;
  vueApp.pageNow = pageNow;
  },
  error:function (res) {
  console.log(res);
  }
 });
 }
</script>

3. Use JPA to implement paging query

Controller receives request

/**
 * 用户相关请求控制器
 * @author louie
 * @date 2017-12-19
 */
@RestController
@RequestMapping("/user")
public class UserController {
 @Autowired
 private UserService userService;
 /**
 * 分页获取用户
 * @param pageNow 当前页码
 * @return 分页用户数据
 */
 @RequestMapping("/{pageNow}")
 public Page<user> findByPage(@PathVariable Integer pageNow){
 return userService.findUserPaging(pageNow);
 }
}</user>

JPA paging query

@Service
public class UserServiceImpl implements UserService {
 @Value("${self.louie.per-page}")
 private Integer perPage;
 @Autowired
 private UserRepository userRepository;
 @Override
 public Page<user> findUserPaging(Integer pageNow) {
 Pageable pageable = new PageRequest(pageNow,perPage,Sort.Direction.DESC,"id");
 return userRepository.findAll(pageable);
 }
}</user>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

Recommended reading:

Analysis of steps for building multi-page applications with webpack

How to add a progress bar to uploaded images in axios

Where does this point when vue uses axios

The above is the detailed content of Bootstrap4 and Vue2 implement paging query function (code attached). For more information, please follow other related articles on the PHP Chinese website!

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