springboot+mybatis+bootstrap+jsp+pagehelper实现分页查询

springboot+jsp实现分页查询

• 新建项目我就不说了，这里就当完成了，。。。。。还是说点吧！ 省略pagehelper具体用法，省略pom文件里的一些依赖解释，省略分页的具体操作， 我写的这篇博客，只要你会Ctrl+c+v就会了。
  
  项目建好，这里我的项目名是 springbootmybatisjsp ，文件是application.yml 样式模块是bootstrap
  项目目录结构如下图
  

数据库数据

user表

/*
Navicat MySQL Data Transfer

Source Server         : 何城东
Source Server Version : 50624
Source Host           : localhost:3306
Source Database       : user

Target Server Type    : MYSQL
Target Server Version : 50624
File Encoding         : 65001

Date: 2019-08-30 12:48:21
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) DEFAULT NULL,
  `pass` varchar(255) DEFAULT NULL,
  `sexid` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=49 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '何城东', '521', '1');
INSERT INTO `user` VALUES ('2', '李冠频', '123', '1');
INSERT INTO `user` VALUES ('3', '李明杨', '456', '1');
INSERT INTO `user` VALUES ('4', '贺小田 ', '789 ', '1');
INSERT INTO `user` VALUES ('5', '彭婕', '111', '0');
INSERT INTO `user` VALUES ('6', '刘艳玲', '121', '0');
INSERT INTO `user` VALUES ('7', '胡雪宁', '122', '0');
INSERT INTO `user` VALUES ('8', '简学云', '445', '1');
INSERT INTO `user` VALUES ('9', '郭圆', '777', '0');
INSERT INTO `user` VALUES ('10', '隆琴', '999', '0');
INSERT INTO `user` VALUES ('11', '公子', '269', '0');

usersex表

/*
Navicat MySQL Data Transfer

Source Server         : 何城东
Source Server Version : 50624
Source Host           : localhost:3306
Source Database       : user

Target Server Type    : MYSQL
Target Server Version : 50624
File Encoding         : 65001

Date: 2019-08-30 12:48:34
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for usersex
-- ----------------------------
DROP TABLE IF EXISTS `usersex`;
CREATE TABLE `usersex` (
  `sexid` int(11) NOT NULL,
  `sex` varchar(255) NOT NULL,
  PRIMARY KEY (`sexid`,`sex`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of usersex
-- ----------------------------
INSERT INTO `usersex` VALUES ('0', '女');
INSERT INTO `usersex` VALUES ('1', '男');

接下来把原有的application.protest删了，新建application.yml，并在里面放入如图

server:
  port: 8080

spring:
  mvc:
    view:
      suffix: .jsp
      prefix: /WEB-INF/jsp/
  datasource:
    name: test
    url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=utf8
    username: root
    password: 521
    driver-class-name: com.mysql.jdbc.Driver



mybatis:
  mapper-locations: classpath:mapper/*Mapper.xml
  type-aliases-package: com.example.springbootmybatisjsp.entity

pom文件里的东西也直接给呢们吧

    4.0.0

    com.dalaoyang
    springboot_jsp
    0.0.1-SNAPSHOT
    war
    
    springboot_jsp
    springboot_jsp

    
        org.springframework.boot
        spring-boot-starter-parent
        1.5.9.RELEASE
         
    

    
        UTF-8
        UTF-8
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter
        

        
            org.springframework.boot
            spring-boot-starter-web
        

        
            org.springframework.boot
            spring-boot-devtools
            runtime
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
        
        
            org.webjars
            jquery
            3.3.1
        
        
        
        
            org.webjars
            bootstrap
            4.0.0
        
        
            mysql
            mysql-connector-java
            5.1.6
        
        
            com.github.pagehelper
            pagehelper-spring-boot-starter
            1.2.5
        
        
            com.github.pagehelper
            pagehelper
            5.1.2
        
        
            org.apache.tomcat.embed
            tomcat-embed-jasper
            provided
        
        
            javax.servlet
            jstl
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
            
            
                org.mybatis.generator
                mybatis-generator-maven-plugin
                1.3.1
                
                    ${basedir}/src/main/resources/generator/generatorConfig.xml
                    true
                    true
                
            
        
    

实体类

我这里是两表联查
user

package com.example.springbootmybatisjsp.entity;

public class user {
    public int id;
    public String name;
    public String pass;
    public int sexid;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPass() {
        return pass;
    }

    public void setPass(String pass) {
        this.pass = pass;
    }

    public int getSexid() {
        return sexid;
    }

    public void setSexid(int sexid) {
        this.sexid = sexid;
    }
    private usersex userid;

    public usersex getUserid() {
        return userid;
    }

    public void setUserid(usersex userid) {
        this.userid = userid;
    }

    @Override
    public String toString() {
        return "user{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", pass='" + pass + '\'' +
                ", sexid=" + sexid +
                ", userid=" + userid +
                '}';
    }
}

usersex

package com.example.springbootmybatisjsp.entity;

import java.util.List;

public class usersex {
    public int getSexid() {
        return sexid;
    }

    public void setSexid(int sexid) {
        this.sexid = sexid;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public List getUser() {
        return user;
    }

    public void setUser(List user) {
        this.user = user;
    }

    public int sexid;
    public String sex;
    public List user;
}

mapper类

userMapper

package com.example.springbootmybatisjsp.mapper;


import com.example.springbootmybatisjsp.entity.user;
import org.apache.ibatis.annotations.Mapper;


import java.util.List;

@Mapper
public interface userMapper {
    Listgetall();
}

userMapper.xml类

userMapper.xml

    
        
        

        
    
        
            select z.id,z.`name`,z.pass,x.sex from `user` z
            INNER JOIN usersex x
            on z.sexid=x.sexid
        

controller类

usercontroller

package com.example.springbootmybatisjsp.controller;

import com.example.springbootmybatisjsp.entity.user;
import com.example.springbootmybatisjsp.mapper.userMapper;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;

import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;


import java.util.List;


@Controller
public class usercontroller {

    //从容器中获取
    @Autowired
    private userMapper userMapper;
    @RequestMapping("/success")
    public PageInfo success(@RequestParam(value = "page" ,defaultValue = "1") int page, ModelMap mod){
        PageHelper.startPage(page, 5);
        List  userList= userMapper.getall();
        PageInfo pages = new PageInfo(userList,5);
        mod.addAttribute("PageInfo",pages);
        return pages;
    }

}

jsp页面

success.jsp

<%--
  Created by IntelliJ IDEA.
  User: 何城东
  Date: 2019/8/29
  Time: 20:57
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>


    
    
    
    
    



    
 
用户列表

    
新增


    

    

    

        
编号
        
用户名
        
密码
        
性别
        
删除
        
修改
    
    
    


        
${c.id} 
        
${c.name} 
        
${c.pass} 
        
${c.userid.sex} 
        
删除
        
修改
    


    


    当前第${PageInfo.pageNum}页，总共${PageInfo.pages}页，总共${PageInfo.total}条记录


    
首页
    
        
«
    
    
        
«
    

    

        
            
${page_Num}
        
        
            
${page_Num}
        

    

    
        
«
    
    
        
»
    

    
尾页

​

启动运行OK