mybatis的分页插件jar包：
配置方法：
在mybatis配置文件中加下面代码
1 <plugin interceptor="com.github.pagehelper.PageInterceptor"> 2 <!-- 设置数据库类型 Oracle,Mysql,MariaDB,SQLite,Hsqldb,PostgreSQL六种数据库--> 3 <property name="helperDialect" value="mysql"/> 4 <property name="offsetAsPageNum" value="true"/> 5 <!-- 6 该参数默认为false 7 设置为true时，使用RowBounds分页会进行count查询 8 --> 9 <property name="rowBoundsWithCount" value="true"/> 10 <!-- 11 设置为true时，如果pageSize=0或者RowBounds.limit=0就会查询出全部的结果 12 (相当于没有执行分页查询，只是返回结果仍然是Page类型) 13 --> 14 <property name="pageSizeZero" value="true"/> 15 <!-- 16 3.3.0版本可用-分页参数合理化，默认false禁用 17 启用合理化时，如果pageNum<1会查询第一页，如果pageNum>pages会查询最后一页 18 禁用合理化时，如果pageNum<1或pages会返回空数据 19 --> 20 <property name="reasonable" value="true"/> 21 <!-- 22 3.5.0版本可用-为了支持startPage(Object params)方法 23 增加了一个'params'参数来配置参数映射，用于从Map或ServletRequest中取值 24 可以配置pageNum,pageSize,count,pageSizeZero,reasonable,orderBy,不配置映射的用默认值 25 不理解该含义的前提下，不要随便复制该配置 26 --> 27 <property name="params" value="pageNum=start;pageSize=limit;"/> 28 <!-- 支持通过Mapper接口参数来传递分页参数 --> 29 <property name="supportMethodsArguments" value="true"/> 30 <!-- always重视返回PageInfo类型，check检查返回类型是否为PageInfo，none返回Page --> 31 <property name="returnPageInfo" value="check"/> 32 </plugin> 33 </plugins>
使用示例：
后台控制器
1 //查看学生信息 2 @RequestMapping(value="/jiaoliu",method=RequestMethod.GET) 3 public String list(@RequestParam(required = false,defaultValue = "1",value = "pn")Integer pn, 4 Map<String,Object> map,Model model,HttpSession session) throws IOException{ 5 PageHelper.startPage(pn,4); 6 SqlSession sqlSession = GetSqlSession.getSqlSession(); 7 int id=((User) session.getAttribute("USER_SESSION")).getId(); 8 //System.out.println(id); 9 List<Jiaoliu> ans = sqlSession.selectList("cn.edu.hziee.dao.JiaoliuMapper.selectByteacherid",id); 10 PageInfo pageInfo = new PageInfo<>(ans,5); 11 map.put("pageInfo",pageInfo); 12 return "jiaoliu"; 13 }
前台接收
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <% 3 String path = request.getContextPath(); 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 5 %> 6 <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> 7 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 8 9 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 10 <html> 11 <head> 12 <base href="<%=basePath%>"> 13 14 <title>My JSP 'person_list.jsp' starting page</title> 15 16 <meta http-equiv="pragma" content="no-cache"> 17 <meta http-equiv="cache-control" content="no-cache"> 18 <meta http-equiv="expires" content="0"> 19 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 20 <meta http-equiv="description" content="This is my page"> 21 <!-- 22 <link rel="stylesheet" type="text/css" href="styles.css"> 23 --> 24 <link rel="stylesheet" href="<%=path %>/css/bootstrap.css"> 25 <script src="<%=path %>/jq/jquery-3.3.1.min.js"></script> 26 <script src="<%=path %>/jq/bootstrap.js"></script> 27 </head> 28 29 <body> 30 <!--通过bootstrap的栅格系统布局--> 31 32 <div class="container"> 33 34 <!--标题--> 35 <div class="row"> 36 <div class="col-md-12"> 37 <h1>学生联系消息</h1> 38 </div> 39 40 </div> 41 42 <!--按钮--> 43 <!-- <div class="row"> 44 <div class="col-md-4 col-md-offset-8"> 45 <button class="btn btn-primary">新增</button> 46 <button class="btn btn-danger">删除</button> 47 </div> 48 </div> --> 49 50 <!--显示表格数据--> 51 <div class="row"> 52 <div class="col-md-12"> 53 <table class="table table-hover"> 54 <tr> 55 <th>编号</th> 56 <th>课程名称</th> 57 <th>选课学生</th> 58 <th>邮箱</th> 59 <th>联系电话</th> 60 61 </tr> 62 63 64 <c:forEach items="${pageInfo.list}" var="emp"> 65 <tr> 66 <th>${emp.id}</th> 67 <th>${emp.ketiName}</th> 68 <th>${emp.studentName}</th> 69 <th>${emp.email }</th> 70 <th>${emp.phone}</th> 71 72 <!-- <th> 73 <button class="btn btn-primary"> 74 <span class="glyphicon glyphicon-pencil" aria-hidden="true"></span> 75 编辑 76 </button> 77 78 <button class="btn btn-danger"> 79 <span class="glyphicon glyphicon-trash" aria-hidden="true"></span> 80 删除 81 </button> 82 83 </th> --> 84 </tr> 85 </c:forEach> 86 87 </table> 88 </div> 89 90 </div> 91 92 <!--显示分页信息--> 93 <div class="row"> 94 <!--文字信息--> 95 <div class="col-md-6"> 96 当前第 ${pageInfo.pageNum} 页.总共 ${pageInfo.pages} 页.一共 ${pageInfo.total} 条记录 97 </div> 98 99 <!--点击分页--> 100 <div class="col-md-6"> 101 <nav aria-label="Page navigation"> 102 <ul class="pagination"> 103 104 <li><a href="${pageContext.request.contextPath}/jiaoliu?pn=1">首页</a></li> 105 106 <!--上一页--> 107 <li> 108 <c:if test="${pageInfo.hasPreviousPage}"> 109 <a href="${pageContext.request.contextPath}/jiaoliu?pn=${pageInfo.pageNum-1}" aria-label="Previous"> 110 <span aria-hidden="true">«</span> 111 </a> 112 </c:if> 113 </li> 114 115 <!--循环遍历连续显示的页面，若是当前页就高亮显示，并且没有链接--> 116 <c:forEach items="${pageInfo.navigatepageNums}" var="page_num"> 117 <c:if test="${page_num == pageInfo.pageNum}"> 118 <li class="active"><a href="${pageContext.request.contextPath}/jiaoliu?pn=${page_num}">${page_num}</a></li> 119 </c:if> 120 <c:if test="${page_num != pageInfo.pageNum}"> 121 <li><a href="${pageContext.request.contextPath}/jiaoliu?pn=${page_num}">${page_num}</a></li> 122 </c:if> 123 </c:forEach> 124 125 <!--下一页--> 126 <li> 127 <c:if test="${pageInfo.hasNextPage}"> 128 <a href="${pageContext.request.contextPath}/jiaoliu?pn=${pageInfo.pageNum+1}" 129 aria-label="Next"> 130 <span aria-hidden="true">»</span> 131 </a> 132 </c:if> 133 </li> 134 135 <li><a href="${pageContext.request.contextPath}/jiaoliu?pn=${pageInfo.pages}">尾页</a></li> 136 </ul> 137 </nav> 138 </div> 139 140 </div> 141 142 143 </div> 144 145 </body> 146 </html>