Spring Data JPA - Web 支持、排序和分页

深藏阁楼爱情的钟 2023-09-25 13:47 47阅读 0赞

在前面的教程中，我们已经看到了如何使用 Spring Data 分页 Web 支持。在本教程中，我们将了解如何使用排序支持。

在基于 Web 的应用程序中应用排序主要有两种方法：

### 按可分页处理程序参数排序 ###

我们在前面的示例中使用过，但没有任何排序查询参数。除了分页信息外，还可以设置排序信息（查看这个和[这个][Link 1]）。在这种情况下，我们必须使用类似于以下内容的查询字符串：`Pageable``Pageable`

?page=1&size=10&sort=personName,desc

相当于：

PageRequest.of(1,10, Sort.by("personName").descending())

### 按排序处理程序参数排序 ###

我们也可以用作控制器方法参数（查看我们的[排序基本示例][Link 2]）。在这种情况下，我们需要创建类似于以下内容的查询字符串：`Sort`

?sort=personName,desc

相当于：

Sort.by("personName").descending()

#### @SortDefault注释 ####

此批注定义将 Sort 实例注入控制器处理程序方法时要使用的默认排序选项。

#### SortHandlerMethodArgumentResolver ####

在上述两种情况下，用于从请求参数或 SortDefault 注释自动创建排序实例。当我们在配置类中使用时，此解析器处于活动状态。`SortHandlerMethodArgumentResolver``@EnableSpringDataWebSupport`

## 例 ##

### 实体 ###

@Entity
    public class Employee {
      private @Id
      @GeneratedValue
      Long id;
      private String name;
      private String dept;
      private int salary;
        .............
    }

### 存储 库 ###

public interface EmployeeRepository extends PagingAndSortingRepository<Employee, Long> {
    
      @Query("SELECT DISTINCT e.dept FROM Employee e")
      List<String> findAllDepartments(Sort sort);
    }

我们在上面的存储库 withparameter 中创建了一个自定义查询方法，以便我们可以在控制器中使用 Sort 参数，该参数只会为视图生成部门列表。`Sort`

### MVC 控制器 ###

在下面的控制器中，我们将使用两种处理程序方法，一种是使用可分页参数，另一种是使用 Sort 参数：

@Controller
    public class EmployeeController {
    
      @Autowired
      private EmployeeRepository repository;
    
      @GetMapping("/employees")
      public String getEmployees(@PageableDefault(size = 10, sort = "id") Pageable pageable,
                                 Model model) {
          Page<Employee> page = repository.findAll(pageable);
          List<Sort.Order> sortOrders = page.getSort().stream().collect(Collectors.toList());
          if (sortOrders.size() > 0) {
              Sort.Order order = sortOrders.get(0);
              model.addAttribute("sortProperty", order.getProperty());
              model.addAttribute("sortDesc", order.getDirection() == Sort.Direction.DESC);
          }
          model.addAttribute("page", page);
          return "employee-page";
      }
    
      @GetMapping("departments")
      public String getDepartments(@SortDefault(sort="dept",direction = Sort.Direction.ASC)
                                               Sort sort, Model model) {
          List<String> depts = repository.findAllDepartments(sort);
          model.addAttribute("depts", depts);
          return "dept-page";
      }
    }

### Thymeleaf 视图 ###

跟随视图同时实现排序和分页。我们正在通过单击表标题进行单列排序。这类似于Java Swing JTable排序功能（[在此处查看示例][Link 3]）。

我们使用 JQuery 来处理表头单击和显示箭头;▾ 和 ▴ 分别在正确的位置进行降序和升序排序。

src/main/webapp/WEB-INF/views/employee-page.html

<!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml"
          xmlns:th="http://www.thymeleaf.org">
    <head>
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <script th:inline="javascript">
        //thymeleaf to javascript variables
        /*<![CDATA[*/
        var sortProperty = /*[[${sortProperty}]]*/ null;
        var sortDesc = /*[[${sortDesc}]]*/ null;
        var currentPage = /*[[${page.number}]]*/ 0;
        var pageSize =/*[[${page.size}]]*/ 0;
        /*]]>*/
    
        $(document).ready(function(){
         //show up/down arrows
         $("table#emp-table thead th").each(function(){
            var head = $(this);
            if(head.attr('data-sort-prop')==sortProperty){
                head.append(sortDesc?'▾':'▴');
            }
            });
    
         //set click action, reload page on clicking with all query params
         $("table#emp-table thead th").click(function() {
          var headerSortPropName = $(this).attr("data-sort-prop");
          if(headerSortPropName==sortProperty){
              window.location.href = window.location.pathname+
              '?page='+currentPage+'&size='+pageSize+'&sort='+ headerSortPropName+','+
              (sortDesc?'asc':'desc');
          }else{
               window.location.href = window.location.pathname+
              '?page='+currentPage+'&size='+pageSize+'&sort='+ headerSortPropName+',asc';
          }
          });
        });
      </script>
      <style>
         table{width:100%;}
         table td, table th { border: 1px solid grey;}
         table th { user-select: none; background: #eee;}
         table tr th:first-child{width:100px;}
         table tr th:nth-child(3){width:150px;}
         table tr th:nth-child(4){width:150px;}
         .pagination-div{user-select: none;}
         .pagination-div span{border-radius:3px;border:1px solid #999;
             padding:5px;margin:10px 0px 0px 10px;display:inline-block}
         span.selected{background:#ccf;}
      </style>
    </head>
    <body>
    <h2>Employees</h2>
    <table id="emp-table">
        <thead>
        <tr>
            <th data-sort-prop="id">Id</th>
            <th data-sort-prop="name">Name</th>
            <th data-sort-prop="dept">Department</th>
            <th data-sort-prop="salary">Salary</th>
        </tr>
        </thead>
        <tr th:each="employee : ${page.content}">
            <td th:text="${employee.id}"></td>
            <td th:text="${employee.name}"></td>
            <td th:text="${employee.dept}"></td>
            <td th:text="${employee.salary}"></td>
        </tr>
    </table>
    
    <div class="pagination-div" th:with="sortParam=${sortProperty+','+(sortDesc?'desc':'asc')}">
        <span th:if="${page.hasPrevious()}">
            <a th:href="@{/employees(page=${page.number-1},size=${page.size},sort=${sortParam})}">Previous</a>
        </span>
        <th:block th:each="i: ${#numbers.sequence(0, page.totalPages - 1)}">
            <span th:if="${page.number == i}" class="selected">[[${i}+1]]</span>
            <span th:unless="${page.number == i}">
                 <a th:href="@{/employees(page=${i},size=${page.size},sort=${sortParam})}">[[${i}+1]]</a>
            </span>
        </th:block>
        <span th:if="${page.hasNext()}">
            <a th:href="@{/employees(page=${page.number+1},size=${page.size},sort=${sortParam})}">Next</a>
        </span>
    </div>
    </body>
    </html>

以下视图仅显示部门列表。相应的处理程序方法（如上所示）仅使用参数。`Sort`

src/main/webapp/WEB-INF/views/dept-page.html

<!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml"
          xmlns:th="http://www.thymeleaf.org">
    <body>
    <h2>Departments</h2>
        <p th:each="dept : ${depts}">
            <td th:text="${dept}"></td>
        </p>
    <br>
    <a th:href="@{/departments(sort='dept,asc')}">In ascending order</a> <br/>
    <a th:href="@{/departments(sort='dept,desc')}">In descending order</a>
    </body>
    </html>

### 运行 ###

要尝试示例，请运行以下示例项目的嵌入式tomcat（在pom中配置.xml）：

mvn tomcat7:run-war

### 输出 ###

localhost:8080/employees

![6d67b550e4b99c69617c79ee70438b33.png][]

如上所示，默认情况下选择第一页，并按升序对“id”列进行排序。让我们点击“名称”列标题：

![7ecce842e39caabbc41798caa72f224c.png][]

查看上面地址栏中的查询字符串，其中存在所有必需的查询参数。单击“名称”标题上的更多时间将更改排序方向：

![d39491ff253b7bc58a2723319f9fd2a7.png][]

单击分页按钮可保留上次排序的列。

![0e93d3f9d0ad941dcb7436678da2920d.png][]

让我们通过本地主机访问部门页面：localhost:8080/departments

![8018086b72ff0d308f6921c440561bb2.png][]

单击底部的“降序”链接将按降序显示部门：

![83107e83a45c767f511d4ebc9acc068e.png][]

<!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml"
          xmlns:th="http://www.thymeleaf.org">
        <head>
            <link rel="icon" th:href="@{/assets/img/favicon.png}"  />
            <link rel="stylesheet" type="text/css" th:href="@{/webjars/bootstrap/css/bootstrap.min.css}" />
            <link rel="stylesheet" type="text/css" th:href="@{/webjars/font-awesome/css/all.min.css}"/>
            <link rel="stylesheet" type="text/css" th:href="@{/webjars/bootstrap-icons/font/bootstrap-icons.css}"/>
            <link rel="stylesheet" type="text/css" th:href="@{/assets/css/style.css}" />
            <link rel="stylesheet" type="text/css" th:href="@{/css/style.css}" />
            <script type="text/javascript" th:src="@{/webjars/jquery/jquery.min.js}"></script>
            <script type="text/javascript" th:src="@{/webjars/bootstrap/js/bootstrap.bundle.min.js}"></script>
            <script th:inline="javascript">
                //thymeleaf to javascript variables
                /*<![CDATA[*/
                var sortProperty = /*[[${sortProperty}]]*/ null;
                var sortDesc = /*[[${sortDesc}]]*/ null;
                var currentPage = /*[[${page.number}]]*/ 0;
                var pageSize = /*[[${page.size}]]*/ 0;
                /*]]>*/
    
                $(document).ready(function () {
                    //show up/down arrows
                    $("table#emp-table thead th").each(function () {
                        var head = $(this);
                        if (head.attr('data-sort-prop') == sortProperty) {
                            head.append(sortDesc ? '▾' : '▴');
                        }
                    });
    
                    //set click action, reload page on clicking with all query params
                    $("table#emp-table thead th").click(function () {
                        var headerSortPropName = $(this).attr("data-sort-prop");
                        if (headerSortPropName == sortProperty) {
                            window.location.href = window.location.pathname +
                                    '?page=' + currentPage + '&size=' + pageSize + '&sort=' + headerSortPropName + ',' +
                                    (sortDesc ? 'asc' : 'desc');
                        } else {
                            window.location.href = window.location.pathname +
                                    '?page=' + currentPage + '&size=' + pageSize + '&sort=' + headerSortPropName + ',asc';
                        }
                    });
                });
            </script>
            <style>
                table{
                    width:100%;
                }
                table td, table th {
                    border: 1px solid grey;
                }
                table th {
                    user-select: none;
                    background: #eee;
                }
                table tr th:first-child{
                    width:100px;
                }
                table tr th:nth-child(3){
                    width:150px;
                }
                table tr th:nth-child(4){
                    width:150px;
                }
                .pagination-div{
                    user-select: none;
                }
                .pagination-div span{
                    border-radius:3px;
                    border:1px solid #999;
                    padding:5px;
                    margin:10px 0px 0px 10px;
                    display:inline-block
                }
                span.selected{
                    background:#ccf;
                }
            </style>
        </head>
        <body>
            <h2>Employees</h2>
            <div class="my-3 ">
    
                <div class="row d-flex flex-row">
                    <form th:action="@{/employees}" id="searchForm" >
                        <div class="row">
                            <div class="col-sm-8">
                                <div class="col-md-12 mt-2">
                                    <div class="search">
                                        <i class="fa fa-search"></i>
                                        <input id="keyword" type="search" name="keyword" th:value="${keyword}" required class="form-control"
                                               placeholder="Enter keyword">
                                            <button type="submit" class="btn btn-secondary">搜索</button>
                                    </div>
                                </div>
                            </div>
                            <div class="col-sm-3">
                                <div class="col-md-12 input-group mt-2">
                                    <div class="input-group-prepend">
                                        <label class="input-group-text" for="pageSize">每页显示行数:</label>
                                    </div>
                                    <select form="searchForm" name="size" th:value="${pageSize}" onchange="changePageSize()" class="size-select"
                                            id="pageSize">
                                        <option th:each="s : ${ {10, 25, 50} }" th:value="${s}" th:text="${s}" th:selected="${s == page.size}"></option>
                                    </select>
                                </div>
                            </div>
                            <div class="col-sm-1">
                                <div class="col-md-12 mt-2">
                                    <button id="btnClear" class="btn btn-info">重置</button>
                                </div>
                            </div>
                        </div>
                    </form>
                </div>
    
            </div>
            <table id="emp-table">
                <thead>
                    <tr>
                        <th data-sort-prop="id">Id</th>
                        <th data-sort-prop="name">Name</th>
                        <th data-sort-prop="dept">Department</th>
                        <th data-sort-prop="salary">Salary</th>
                    </tr>
                </thead>
                <tr th:each="employee : ${page.content}">
                    <td th:text="${employee.id}"></td>
                    <td th:text="${employee.name}"></td>
                    <td th:text="${employee.dept}"></td>
                    <td th:text="${employee.salary}"></td>
                </tr>
            </table>
            
            <div class="pagination-div" th:with="sortParam=${sortProperty+','+(sortDesc?'desc':'asc')}">
                <span th:if="${page.hasPrevious()}">
                    <a th:href="@{/employees(page=${page.number-1},size=${page.size},sort=${sortParam})}">Previous</a>
                </span>
                <th:block th:each="i: ${#numbers.sequence(0, page.totalPages - 1)}">
                    <span th:if="${page.number == i}" class="selected">[[${i}+1]]</span>
                    <span th:unless="${page.number == i}">
                        <a th:href="@{/employees(page=${i},size=${page.size},sort=${sortParam})}">[[${i}+1]]</a>
                    </span>
                </th:block>
                <span th:if="${page.hasNext()}">
                    <a th:href="@{/employees(page=${page.number+1},size=${page.size},sort=${sortParam})}">Next</a>
                </span>
            </div>
    
            <div class="row">
                <div class="col-sm-6">
                    <div th:if="${page.totalPages > 0}">
                        总计<span th:text="${page.totalElements}">99</span>行，当前显示<span th:text="(${page.number} )*${page.size} +1">1</span> -
                        <span th:text="(${page.number} )*${page.size} +${page.numberOfElements}">5</span>行   总计<span th:text="${page.totalPages}">99</span>页
                    </div>
                </div>
                <div class="col-sm-6" th:with="sortParam=${sortProperty+','+(sortDesc?'desc':'asc')}">
                    <nav aria-label="Pagination" th:if="${page.totalPages > 0}">
                        <ul class="pagination justify-content-center">
                            <li class="page-item" th:classappend="${page.number == 0} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' +'0'+ '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="First Page" rel="First Page">
                                    最前页
                                </a>
                            </li>
                            <li class="page-item font-weight-bold" th:classappend="${page.number == 0} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' + ${page.number - 1} + '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="Previous Page" rel="Previous Page">
                                    前一页
                                </a>
                            </li>
                            <li class="page-item disabled" th:if="${page.number - 2 > 0}">
                                <a class="page-link" href="#">...</a>
                            </li>
                            <li
                                th:each="i : ${#numbers.sequence(page.number > 2 ? page.number - 2 : 0, page.number + 2 < page.totalPages ? page.number + 2 : page.totalPages-1)}"
                                class="page-item" th:classappend="${i == page.number} ? 'active'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' + ${i} + '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   th:title=${i+1} th:rel=${i+1}>
                                    [[${i+1} ]]
                                </a>
                            </li>
                            <li class="page-item disabled" th:if="${page.number + 2 < page.totalPages}">
                                <a class="page-link" href="#">...</a>
                            </li>
                            <li class="page-item font-weight-bold" th:classappend="${page.number == page.totalPages-1} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' + ${page.number + 1} + '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="Next Page" rel="Next Page">
                                    后一页
                                </a>
                            </li>
                            <li class="page-item" th:classappend="${page.number == page.totalPages-1} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' +${page.totalPages-1}+ '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="Last Page" rel="Last Page">
                                    最后页
                                </a>
                            </li>
                        </ul>
                    </nav>
                </div>
            </div>
            <a href="#" class="back-to-top d-flex align-items-center justify-content-center"><i
                    class="bi bi-arrow-up-short"></i></a>
            <script type="text/javascript" th:src="@{/webjars/jquery/jquery.min.js}"></script>
            <script type="text/javascript" th:src="@{/webjars/bootstrap/js/bootstrap.bundle.min.js}"></script>
            <script type="text/javascript" th:src="@{/assets/js/main.js}" ></script>
            <script type="text/javascript">
                $(document).ready(function () {
                    $(".btn-delete").on("click", function (e) {
                        e.preventDefault();
                        link = $(this);
    
                        tutorialTitle = link.attr("tutorialTitle");
                        $("#yesBtn").attr("href", link.attr("href"));
                        $("#confirmText").html("Do you want to delete the Tutorial \<strong\>" + tutorialTitle + "\<\/strong\>?");
                        var myModal = new bootstrap.Modal(document.getElementById('confirmModal'), {
                            keyboard: false
                        });
                        myModal.toggle();
                    });
    
                    $("#btnClear").on("click", function (e) {
                        e.preventDefault();
                        $("#keyword").text("");
                        window.location = "[[@{/employees}]]";
                    });
                });
    
                function changePageSize() {
                    $("#searchForm").submit();
                }
            </script>
        </body>
    </html>

![da53752d40824e0ead4da8f2b2957a8f.png][]

添加搜索/过滤功能

package com.example;
    
    import org.springframework.data.domain.Page;
    import org.springframework.data.domain.Pageable;
    import org.springframework.data.jpa.repository.JpaRepository;
    import org.springframework.data.jpa.repository.Query;
    
    public interface EmployeeRepository extends JpaRepository<Employee, Long> {
    
        @Query("SELECT e FROM Employee e WHERE CONCAT(e.name, ' ', e.dept) LIKE %?1%")
        public Page<Employee> search(String keyword, Pageable pageable);
    }

package com.example;
    
    import java.util.List;
    import java.util.stream.Collectors;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.data.domain.Page;
    import org.springframework.data.domain.Pageable;
    import org.springframework.data.domain.Sort;
    import org.springframework.data.repository.query.Param;
    import org.springframework.data.web.PageableDefault;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.GetMapping;
    
    @Controller
    public class EmployeeController {
    
        @Autowired
        private EmployeeRepository repository;
    
        @GetMapping("/employees")
        public String getEmployees(@Param("keyword") String keyword, @PageableDefault(size = 10, sort = "id") Pageable pageable,
                Model model) {
    
            if (keyword == null) {
                Page<Employee> page = repository.findAll(pageable);
                List<Sort.Order> sortOrders = page.getSort().stream().collect(Collectors.toList());
                if (sortOrders.size() > 0) {
                    Sort.Order order = sortOrders.get(0);
                    model.addAttribute("sortProperty", order.getProperty());
                    model.addAttribute("sortDesc", order.getDirection() == Sort.Direction.DESC);
                }
                model.addAttribute("page", page);
            } else {
                Page<Employee> page = repository.search(keyword, pageable);
                List<Sort.Order> sortOrders = page.getSort().stream().collect(Collectors.toList());
                if (sortOrders.size() > 0) {
                    Sort.Order order = sortOrders.get(0);
                    model.addAttribute("sortProperty", order.getProperty());
                    model.addAttribute("sortDesc", order.getDirection() == Sort.Direction.DESC);
                }
                model.addAttribute("keyword", keyword);
                model.addAttribute("page", page);
            }
    
            return "employee-page";
    
        }
    
    }

<!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml"
          xmlns:th="http://www.thymeleaf.org">
        <head>
            <link rel="icon" th:href="@{/assets/img/favicon.png}"  />
            <link rel="stylesheet" type="text/css" th:href="@{/webjars/bootstrap/css/bootstrap.min.css}" />
            <link rel="stylesheet" type="text/css" th:href="@{/webjars/font-awesome/css/all.min.css}"/>
            <link rel="stylesheet" type="text/css" th:href="@{/webjars/bootstrap-icons/font/bootstrap-icons.css}"/>
            <link rel="stylesheet" type="text/css" th:href="@{/assets/css/style.css}" />
            <link rel="stylesheet" type="text/css" th:href="@{/css/style.css}" />
            <script type="text/javascript" th:src="@{/webjars/jquery/jquery.min.js}"></script>
            <script type="text/javascript" th:src="@{/webjars/bootstrap/js/bootstrap.bundle.min.js}"></script>
            <script th:inline="javascript">
                //thymeleaf to javascript variables
                /*<![CDATA[*/
                var sortProperty = /*[[${sortProperty}]]*/ null;
                var sortDesc = /*[[${sortDesc}]]*/ null;
                var currentPage = /*[[${page.number}]]*/ 0;
                var pageSize = /*[[${page.size}]]*/ 0;
                /*]]>*/
    
                $(document).ready(function () {
                    //show up/down arrows
                    $("table#emp-table thead th").each(function () {
                        var head = $(this);
                        if (head.attr('data-sort-prop') == sortProperty) {
                            head.append(sortDesc ? '▾' : '▴');
                        }
                    });
    
                    //set click action, reload page on clicking with all query params
                    $("table#emp-table thead th").click(function () {
                        var headerSortPropName = $(this).attr("data-sort-prop");
                        if (headerSortPropName == sortProperty) {
                            window.location.href = window.location.pathname +
                                    '?page=' + currentPage + '&size=' + pageSize + '&sort=' + headerSortPropName + ',' +
                                    (sortDesc ? 'asc' : 'desc');
                        } else {
                            window.location.href = window.location.pathname +
                                    '?page=' + currentPage + '&size=' + pageSize + '&sort=' + headerSortPropName + ',asc';
                        }
                    });
                });
            </script>
            <style>
                table{
                    width:100%;
                }
                table td, table th {
                    border: 1px solid grey;
                }
                table th {
                    user-select: none;
                    background: #eee;
                }
                table tr th:first-child{
                    width:100px;
                }
                table tr th:nth-child(3){
                    width:150px;
                }
                table tr th:nth-child(4){
                    width:150px;
                }
                .pagination-div{
                    user-select: none;
                }
                .pagination-div span{
                    border-radius:3px;
                    border:1px solid #999;
                    padding:5px;
                    margin:10px 0px 0px 10px;
                    display:inline-block
                }
                span.selected{
                    background:#ccf;
                }
            </style>
        </head>
        <body>
            <h2>Employees</h2>
            <div class="my-3 ">
    
                <div class="row d-flex flex-row">
                    <form th:action="@{/employees}" id="searchForm" >
                        <div class="row">
                            <div class="col-sm-8">
                                <div class="col-md-12 mt-2">
                                    <div class="search">
                                        <i class="fa fa-search"></i>
                                        <input id="keyword" type="search" name="keyword" th:value="${keyword}" required class="form-control"
                                               placeholder="Enter keyword">
                                            <button type="submit" class="btn btn-secondary">搜索</button>
                                    </div>
                                </div>
                            </div>
                            <div class="col-sm-3">
                                <div class="col-md-12 input-group mt-2">
                                    <div class="input-group-prepend">
                                        <label class="input-group-text" for="pageSize">每页显示行数:</label>
                                    </div>
                                    <select form="searchForm" name="size" th:value="${pageSize}" onchange="changePageSize()" class="size-select"
                                            id="pageSize">
                                        <option th:each="s : ${ {10, 25, 50} }" th:value="${s}" th:text="${s}" th:selected="${s == page.size}"></option>
                                    </select>
                                </div>
                            </div>
                            <div class="col-sm-1">
                                <div class="col-md-12 mt-2">
                                    <button id="btnClear" class="btn btn-info">重置</button>
                                </div>
                            </div>
                        </div>
                    </form>
                </div>
    
            </div>
            <table id="emp-table">
                <thead>
                    <tr>
                        <th data-sort-prop="id">Id</th>
                        <th data-sort-prop="name">Name</th>
                        <th data-sort-prop="dept">Department</th>
                        <th data-sort-prop="salary">Salary</th>
                    </tr>
                </thead>
                <tr th:each="employee : ${page.content}">
                    <td th:text="${employee.id}"></td>
                    <td th:text="${employee.name}"></td>
                    <td th:text="${employee.dept}"></td>
                    <td th:text="${employee.salary}"></td>
                </tr>
            </table>
    
    
            <div class="row">
                <div class="col-sm-6">
                    <div th:if="${page.totalPages > 0}">
                        总计<span th:text="${page.totalElements}">99</span>行，当前显示<span th:text="(${page.number} )*${page.size} +1">1</span> -
                        <span th:text="(${page.number} )*${page.size} +${page.numberOfElements}">5</span>行   总计<span th:text="${page.totalPages}">99</span>页
                    </div>
                </div>
                <div class="col-sm-6" th:with="sortParam=${sortProperty+','+(sortDesc?'desc':'asc')}">
                    <nav aria-label="Pagination" th:if="${page.totalPages > 0}">
                        <ul class="pagination justify-content-center">
                            <li class="page-item" th:classappend="${page.number == 0} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' +'0'+ '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="First Page" rel="First Page">
                                    最前页
                                </a>
                            </li>
                            <li class="page-item font-weight-bold" th:classappend="${page.number == 0} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' + ${page.number - 1} + '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="Previous Page" rel="Previous Page">
                                    前一页
                                </a>
                            </li>
                            <li class="page-item disabled" th:if="${page.number - 2 > 0}">
                                <a class="page-link" href="#">...</a>
                            </li>
                            <li
                                th:each="i : ${#numbers.sequence(page.number > 2 ? page.number - 2 : 0, page.number + 2 < page.totalPages ? page.number + 2 : page.totalPages-1)}"
                                class="page-item" th:classappend="${i == page.number} ? 'active'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' + ${i} + '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   th:title=${i+1} th:rel=${i+1}>
                                    [[${i+1} ]]
                                </a>
                            </li>
                            <li class="page-item disabled" th:if="${page.number + 2 < page.totalPages}">
                                <a class="page-link" href="#">...</a>
                            </li>
                            <li class="page-item font-weight-bold" th:classappend="${page.number == page.totalPages-1} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' + ${page.number + 1} + '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="Next Page" rel="Next Page">
                                    后一页
                                </a>
                            </li>
                            <li class="page-item" th:classappend="${page.number == page.totalPages-1} ? 'disabled'">
                                <a class="page-link"
                                   th:href="@{'/employees?' + ${keyword!=null && keyword!=''? 'keyword=' + keyword + '&' : ''} + 'page=' +${page.totalPages-1}+ '&size=' + ${page.size}+'&sort='+${sortParam}}"
                                   title="Last Page" rel="Last Page">
                                    最后页
                                </a>
                            </li>
                        </ul>
                    </nav>
                </div>
            </div>
            <a href="#" class="back-to-top d-flex align-items-center justify-content-center"><i
                    class="bi bi-arrow-up-short"></i></a>
            <script type="text/javascript" th:src="@{/webjars/jquery/jquery.min.js}"></script>
            <script type="text/javascript" th:src="@{/webjars/bootstrap/js/bootstrap.bundle.min.js}"></script>
            <script type="text/javascript" th:src="@{/assets/js/main.js}" ></script>
            <script type="text/javascript">
                $(document).ready(function () {
                    $(".btn-delete").on("click", function (e) {
                        e.preventDefault();
                        link = $(this);
    
                        tutorialTitle = link.attr("tutorialTitle");
                        $("#yesBtn").attr("href", link.attr("href"));
                        $("#confirmText").html("Do you want to delete the Tutorial \<strong\>" + tutorialTitle + "\<\/strong\>?");
                        var myModal = new bootstrap.Modal(document.getElementById('confirmModal'), {
                            keyboard: false
                        });
                        myModal.toggle();
                    });
    
                    $("#btnClear").on("click", function (e) {
                        e.preventDefault();
                        $("#keyword").text("");
                        window.location = "[[@{/employees}]]";
                    });
                });
    
                function changePageSize() {
                    $("#searchForm").submit();
                }
            </script>
        </body>
    </html>

![71079471f4c5430584af5af164fb9ab1.png][]

### 示例项目 ###

[https://www.logicbig.com/tutorials/spring-framework/spring-data/sorting-and-pagination/spring-data-jpa-sorting-and-pagination.zip][https_www.logicbig.com_tutorials_spring-framework_spring-data_sorting-and-pagination_spring-data-jpa-sorting-and-pagination.zip]

[Link 1]: https://www.logicbig.com/tutorials/spring-framework/spring-data/pagination.html
[Link 2]: https://www.logicbig.com/tutorials/spring-framework/spring-data/sorting.html
[Link 3]: https://www.logicbig.com/tutorials/java-swing/jtable-pagination-with-sorting.html
[6d67b550e4b99c69617c79ee70438b33.png]: https://img-blog.csdnimg.cn/img_convert/6d67b550e4b99c69617c79ee70438b33.png
[7ecce842e39caabbc41798caa72f224c.png]: https://img-blog.csdnimg.cn/img_convert/7ecce842e39caabbc41798caa72f224c.png
[d39491ff253b7bc58a2723319f9fd2a7.png]: https://img-blog.csdnimg.cn/img_convert/d39491ff253b7bc58a2723319f9fd2a7.png
[0e93d3f9d0ad941dcb7436678da2920d.png]: https://img-blog.csdnimg.cn/img_convert/0e93d3f9d0ad941dcb7436678da2920d.png
[8018086b72ff0d308f6921c440561bb2.png]: https://img-blog.csdnimg.cn/img_convert/8018086b72ff0d308f6921c440561bb2.png
[83107e83a45c767f511d4ebc9acc068e.png]: https://img-blog.csdnimg.cn/img_convert/83107e83a45c767f511d4ebc9acc068e.png
[da53752d40824e0ead4da8f2b2957a8f.png]: https://img-blog.csdnimg.cn/da53752d40824e0ead4da8f2b2957a8f.png
[71079471f4c5430584af5af164fb9ab1.png]: https://img-blog.csdnimg.cn/71079471f4c5430584af5af164fb9ab1.png
[https_www.logicbig.com_tutorials_spring-framework_spring-data_sorting-and-pagination_spring-data-jpa-sorting-and-pagination.zip]: https://www.logicbig.com/tutorials/spring-framework/spring-data/sorting-and-pagination/spring-data-jpa-sorting-and-pagination.zip