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  • springmvc+spring+mybatis分页查询实例版本3,添加条件检索

    在第二个版本上添加了姓名模糊查询,年龄区间查询;自以为easy,结果发现mybatis的各种参数写法基本搞混或是忘了,zuo啊,直接上代码,然后赶紧把mybatis整理一遍再研究自己的项目,应该还会有个版本4,基本就可以搬到实际项目上使用了,话说自己的项目要抓紧了,最近做的有点慢,也是没办法,工作偏忙,空闲时想看的东西太多,还是要科学计划一下,

    参考资料 
    1 ibatis2.x与mybatis(ibatis3.x)的比较 
    http://zhaohe162.blog.163.com/blog/static/382167972011111114742371/ 
    2 MyBatis学习 之 三、动态SQL语句 
    http://limingnihao.iteye.com/blog/782190 
     

    package com.mi.controller;
    
    import javax.servlet.http.HttpServletRequest;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.mi.form.PageTableForm;
    import com.mi.service.impl.UserInfoServiceImpl;
    
    @Controller
    @RequestMapping("/user")
    public class UserInfoCotroller {
    
        @Autowired
        private UserInfoServiceImpl userInfoServiceImpl;
    
        private PageTableForm pageTableForm;
    
        @RequestMapping("/init")
        public String init(Model model) {
            pageTableForm = new PageTableForm();
            return "redirect:/user/query.do";
        }
    
        @RequestMapping("/query")
        public String queryUserInfo(Model model,HttpServletRequest request, PageTableForm pageTableForm) {
            String name = request.getParameter("name")!=null ? request.getParameter("name") : null;
            String ageFrom =  (request.getParameter("ageFrom")!=null ? request.getParameter("ageFrom") : null);
            String ageTo =  (request.getParameter("ageTo")!=null ? request.getParameter("ageTo") : null);
            if(name!=null){
                pageTableForm.setName(name);
            }
            pageTableForm.setAgeFrom(ageFrom);
            pageTableForm.setAgeTo(ageTo);
            pageTableForm = userInfoServiceImpl.queryUserInfo(pageTableForm);
            model.addAttribute("pageTableForm", pageTableForm);
            return "userInfo";
        }
    
        public UserInfoServiceImpl getUserInfoServiceImpl() {
            return userInfoServiceImpl;
        }
    
        public void setUserInfoServiceImpl(UserInfoServiceImpl userInfoServiceImpl) {
            this.userInfoServiceImpl = userInfoServiceImpl;
        }
    
        public PageTableForm getPageTableForm() {
            return pageTableForm;
        }
    
        public void setPageTableForm(PageTableForm pageTableForm) {
            this.pageTableForm = pageTableForm;
        }
    
    }
    package com.mi.service.impl;
    
    import java.util.List;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import com.mi.dao.UserInfoMapper;
    import com.mi.entity.User;
    import com.mi.form.PageTableForm;
    import com.mi.service.UserInfoService;
    
    @Service("userInfoService")
    public class UserInfoServiceImpl implements UserInfoService {
    
        @Autowired
        private UserInfoMapper userInfoMapper;
        
        private List<User> userList;
        @Override
        public PageTableForm queryUserInfo(PageTableForm pageTableForm) {
            userList = userInfoMapper.queryUserInfo(pageTableForm);
            pageTableForm.setUserList(userList);
            return pageTableForm;
        }
        
    
        public UserInfoMapper getUserInfoMapper() {
            return userInfoMapper;
        }
        public void setUserInfoMapper(UserInfoMapper userInfoMapper) {
            this.userInfoMapper = userInfoMapper;
        }
    
        @Override
        public int getCount() {
            return userInfoMapper.getCount();
        }
    
        public List<User> getUserList() {
            return userList;
        }
    
        public void setUserList(List<User> userList) {
            this.userList = userList;
        }
    
    }
    package com.mi.dao;
    
    import java.util.List;
    
    import org.apache.ibatis.annotations.Param;
    import org.springframework.stereotype.Repository;
    
    import com.mi.entity.User;
    import com.mi.form.PageTableForm;
    
    @Repository("userInfoMapper")
    public interface UserInfoMapper {
        
        public List<User> queryUserInfo(@Param("pageTableForm") PageTableForm pageTableForm);
        
        public int getCount();
    }
    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    <mapper namespace="com.mi.dao.UserInfoMapper">
        
        <select id="queryUserInfo" parameterType="com.mi.form.PageTableForm" resultType="com.mi.entity.User">
            SELECT id,user_name userName,age FROM user_t where 1=1
            <if test="pageTableForm.name !=null and pageTableForm.name !=''">
                and user_name like concat('%',#{pageTableForm.name},'%')
            </if>
            <if test="pageTableForm.ageFrom !=null and pageTableForm.ageFrom != ''">
                and age >= #{pageTableForm.ageFrom}
            </if>
            <if test="pageTableForm.ageTo !=null and pageTableForm.ageTo != ''">
                and age  &lt;= #{pageTableForm.ageTo}
            </if>
        </select>
        
        <select id="getCount" resultType="int">
            SELECT count(*) FROM user_t
        </select>
        <!-- <insert id="addUser" parameterType="com.mi.entity.User"
            flushCache="true">
            INSERT INTO user_t (id,user_name,password,age) VALUES
            (#{id},#{userName},#{password},#{age})
        </insert>
        
        <delete id="deleteUser" parameterType="com.mi.entity.User" flushCache="true">
            DELETE FROM user_t where id=#{id}
        </delete>
        
        <update id="updateUser" parameterType="com.mi.entity.User" flushCache="true">
            UPDATE user_t SET user_name = 'zzxy' WHERE id=#{id}
        </update> -->
        
    </mapper>
    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Insert title here</title>
    <style type="text/css">
    .page{
        width:200px;
    }
    .page span{
        margin-left:30px;
    }
    a{
        text-decoration:none;
    }
    </style>
    <script type="text/javascript"
        src="<%=request.getContextPath()%>/js/jquery-1.8.3.min.js"></script>
    <script type="text/javascript">
        $(function() {
            var $table = $(".user_table");
            var currentPage = 1;
            var pageSize = 3;
            var sumRows = $table.find("tbody tr").length;
            var sumPages = Math.ceil(sumRows/pageSize);
            
            init();
            paging(currentPage)
            
            $("#prev").click(function(){
                currentPage--;
                init();
                paging(currentPage);
            })
            
            $("#next").click(function(){
                currentPage++;
                init();
                paging(currentPage);
            })
            
            var $page = $("<div class='page'></div>");
            for(var pageIndex=1;pageIndex<=sumPages;pageIndex++){
                $("<a href='#'><span>["+(pageIndex)+"]</span></a>").bind("click",{"newPage":pageIndex},function(event){
                    currentPage=event.data["newPage"];
                    init();
                    paging(currentPage);
                }).appendTo($page);
            }
            $page.insertAfter($table);
            
            function paging(currentPage){
                $table.find("tbody tr:not(.prevnext)").hide().slice((currentPage-1)*pageSize,(currentPage)*pageSize).show();
                $("#currentPage").val(currentPage+1);
                $("#currentPage").text(currentPage);
                $("#sumPages").text(sumPages);
            }
            
            function init(){
                if(currentPage==1){
                    $("#prev").attr({"disabled":"disabled"});
                }else{
                    $("#prev").removeAttr("disabled");
                }
                if(currentPage==sumPages){
                    $("#next").attr({"disabled":"disabled"});
                }else{
                    $("#next").removeAttr("disabled");
                }
            }
            $("#search").click(function(){
                var name = $("#name").val();
                var ageFrom = $("#ageFrom").val();
                var ageTo = $("#ageTo").val();
                if(name==""&&ageFrom==""&&ageTo==""){
                    $("#msg").text("未输入检索条件!");
                    return;
                }
                $("#form0").submit();
            });
            
        })
    </script>
    </head>
    <body>
        <form action="${pageContext.request.contextPath}/user/query.do" id="form0" method="POST">
            <table>
                <tr><td>name:</td><td><input name="name" id="name" type="text"></td></tr>
                <tr><td>ageFrom:</td><td><input name="ageFrom" id="ageFrom" type="text" style=" 40px"></td></tr>
                <tr><td>ageTo:</td><td><input name="ageTo" id="ageTo" type="text" style=" 40px">&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp<input type="button" value="search" id="search"></td></tr>
            </table>
            <span id="msg" style="color:red;"></span>
            <table class="user_table" border="1">
                <thead>
                    <tr>
                        <td width="60px">id</td>
                        <td width="120px">name</td>
                        <td width="60px">age</td>
                    </tr>
                </thead>
                <tbody>
                    <c:forEach var="user" items="${pageTableForm.userList}" varStatus="status">
                        <tr>
                            <td>${user.id}</td>
                            <td>${user.userName}</td>
                            <td>${user.age}</td>
                        </tr>
                    </c:forEach>
                    <tr class="prevnext">
                        <td>
                            <input id="prev" type="button" value="上一页">
                        </td>
                        <td>当前<label id="currentPage"></label>页/共<label id="sumPages"></label></td>
                        <td>
                            <input id="next" type="button" value="下一页">
                        </td>
                    </tr>
                    
                </tbody>
            </table>
            <input id="currentPage" type="hidden" name="currentPage" value="${pageTableForm.currentPage}">
        </form>
    </body>
    </html>
    package com.mi.form;
    
    import java.util.List;
    
    import com.mi.entity.User;
    
    public class PageTableForm {
    
        private int currentPage;// 当前页
        private int pageSize = 3;// 每页记录数
        private int beginIndex;// 开始位置
        private int endIndex;// 结束位置
        private int pageCount;// 共多少页
        private int userCount;// 共多少条记录
        private String name;
        private String ageFrom;
        private String ageTo;
        
        private List<User> userList;
        ...省略get set
    }

    效果如下:

    还原再来

    其实应该再加个清空条件后重新检索全部的功能,不过想想算了,没必要,就一个显示全部,复制一个search去掉js的验证就可以了,实际用起来还要再细致化去使用,先这样

     又看了这个http://liuzidong.iteye.com/blog/1055491神的代码,嗯感觉可以哒,时间有限,等到实际项目再采用练手吧

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  • 原文地址:https://www.cnblogs.com/tingbogiu/p/5865021.html
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