SpringBoot+MyBatisPlus+thymeleaf增删改查
SpringBoot+MyBatisPlus+thymeleaf增删改查
一、基本介绍
建议在写之前会熟练使用vue脚手架，以及掌握vue相关知识
本文章会教你构建一个springboot+mybatisplus+thymeleaf+mysql
的增删改查
二、数据层
1.导入SQL
数据库名称 edocmanagement
/*
Navicat Premium Data Transfer
Source Server : localhost_3306
Source Server Type : MySQL
Source Server Version : 80027
Source Host : localhost:3306
Source Schema : edocmanagement
Target Server Type : MySQL
Target Server Version : 80027
File Encoding : 65001
Date: 21/11/2022 10:52:04
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for edoc_category
-- ----------------------------
DROP TABLE IF EXISTS `edoc_category`;
CREATE TABLE `edoc_category` (
`id` int(0) NOT NULL AUTO_INCREMENT,
`name` varchar(25) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of edoc_category
-- ----------------------------
INSERT INTO `edoc_category` VALUES (1, '全部');
INSERT INTO `edoc_category` VALUES (2, 'IT计算机');
INSERT INTO `edoc_category` VALUES (3, '聊天');
INSERT INTO `edoc_category` VALUES (4, '科幻');
-- ----------------------------
-- Table structure for edoc_entry
-- ----------------------------
DROP TABLE IF EXISTS `edoc_entry`;
CREATE TABLE `edoc_entry` (
`id` int(0) NOT NULL AUTO_INCREMENT,
`categoryId` int(0) NOT NULL,
`title` varchar(25) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`summary` varchar(200) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`uploadUser` varchar(25) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`createDate` date NOT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 707067329 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of edoc_entry
-- ----------------------------
INSERT INTO `edoc_entry` VALUES (2, 2, '王', '321', '2323', '2022-10-11');
INSERT INTO `edoc_entry` VALUES (3, 2, 'java学习', 'java学习精品', '小王', '2022-10-03');
INSERT INTO `edoc_entry` VALUES (7, 2, 'ppt学习', 'ppt精品', '小兰', '2022-10-04');
INSERT INTO `edoc_entry` VALUES (8, 3, '撩妹100条', '撩妹100条', '李小明', '2022-10-04');
INSERT INTO `edoc_entry` VALUES (9, 3, '网络用语100', '网络用语100', '小王', '2022-10-03');
INSERT INTO `edoc_entry` VALUES (10, 3, '美国大片学口语', '美国大片学口语', '小兰', '2022-10-04');
INSERT INTO `edoc_entry` VALUES (11, 4, '三体', '科幻大作', '李小明', '2022-10-04');
INSERT INTO `edoc_entry` VALUES (12, 4, '球形闪电', '牛逼', '小王', '2022-10-03');
INSERT INTO `edoc_entry` VALUES (13, 4, '星际穿越', '最好看的科幻片', '小兰', '2022-10-04');
SET FOREIGN_KEY_CHECKS = 1;
三、构建
打开idea 选择新建 -》新建项目-》Spring Initializr 编辑好相关信息后下一步
选择这些包然后完成
导入druid
com.alibaba
druid-spring-boot-starter
1.1.17
4. 页面
index.html
Title
文档分类
新增电子文档
电子文档列表
文档编号
文档名称
文档摘要
上传人
上传时间
操作
${ee.id}
${ee.title}
${ee.summary}
${ee.uploadUser}
修改
删除
当前第[[${pageInfo.current}]]页，总页数：[[${pageInfo.pages}]]，
总记录数：[[${pageInfo.total}]]
add.html 新增页面
Title
update.html 修改页面
Title
更新文档
5.SpringBoot配置文件
application.yml
spring:
thymeleaf:
cache: true
check-template: true
check-template-location: true
enabled: true
encoding: UTF-8
mode: HTML5
prefix: classpath:/templates/
suffix: .html
servlet:
content-type: text/html
application:
name: crud_boot_th
servlet:
multipart:
max-file-size: 10MB
max-request-size: 100MB
datasource:
druid:
url: jdbc:mysql://localhost:3306/edocmanagement?serverTimezone=UTC
username: root
password: password
driver-class-name: com.mysql.cj.jdbc.Driver
filters:
stat,wall
stat-view-servlet:
enabled: true
login-username: admin
login-password: 123123
reset-enable: false
web-stat-filter:
enabled: true
url-pattern: /*
exclusions: '*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'
mvc:
hiddenmethod:
filter:
enabled: true
server:
port: 8080
mybatis-plus:
type-aliases-package: com.boot.pojo
configuration:
map-underscore-to-camel-case: true
logging:
level:
com.boot: debug
pattern:
dateformat: MM-dd HH:mm:ss:SSS
6.实体类
EdocEntry
EdocCategory
7.数据访问层
由于是基于mybatisplus所以代码非常简单
EdocEntryMapper
EdocCategoryMapper
8.服务层
①.服务接口
EdocEntryService
EdocCategoryService
②. 实现类
EdocEntryServiceImpl
EdocCategoryServiceImpl
9.控制层
IndexController
package com.boot.controller;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.boot.pojo.EdocCategory;
import com.boot.pojo.EdocEntry;
import com.boot.service.EdocCategoryService;
import com.boot.service.EdocEntryService;
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 org.springframework.web.bind.annotation.RequestParam;
import java.util.List;
import java.util.UUID;
@Controller
public class IndexController {
@Autowired
private EdocCategoryService ecService;
@Autowired
private EdocEntryService eeService;
@RequestMapping({"/", "/index"})
public String toIndex(@RequestParam(value = "id", defaultValue = "1") Integer id,
@RequestParam(value = "page", defaultValue = "1") Integer page,
@RequestParam(value = "pageSize", defaultValue = "3") Integer pageSize,
Model model) {
System.out.println(id + "=======================");
List ecList = ecService.list();
Page pageInfo = new Page<>(page, pageSize);
LambdaQueryWrapper wrapper = new LambdaQueryWrapper<>();
wrapper.eq(id != 1, EdocEntry::getCategoryid, id);
eeService.page(pageInfo, wrapper);
model.addAttribute("ecList", ecList);
model.addAttribute("pageInfo", pageInfo);
model.addAttribute("ecId", id);
return "/html/index";
}
@RequestMapping("/add")
public String add(EdocEntry edocEntry) {
int id = UUID.randomUUID().toString().replaceAll("-", "").hashCode();
id = id < 0 ? -id : id;
edocEntry.setId(id);
edocEntry.setCategoryid(1);
System.out.println("add=============" + edocEntry);
eeService.save(edocEntry);
return "redirect:/";
}
@RequestMapping("/toAdd")
public String toAdd() {
return "/html/add";
}
@RequestMapping("/toUpdate")
public String toUpdate(Integer id, Model model) {
EdocEntry ee = eeService.getById(id);
model.addAttribute("ee", ee);
return "/html/update";
}
@RequestMapping("/update")
public String update(EdocEntry edocEntry) {
System.out.println("update===============" + edocEntry);
eeService.updateById(edocEntry);
return "redirect:/";
}
@RequestMapping("/delete")
public String delete(Integer id) {
eeService.removeById(id);
return "redirect:/";
}
}
最后就是运行springboot项目就行啦