技术框架：Spring + SpringMVC + Mybatis + JSP + MySQL
001 图书增删改查 SSM MySQL
package com.demo.controller;import com.demo.pojo.Book;
import com.demo.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;import java.util.List;@Controller
@RequestMapping("/books")
public class BookController {@Autowiredprivate BookService bookService;//查询全部的书籍，并且返回到一个书籍展示@RequestMapping("allBook")public String list(Model model,Integer bookId) {List<Book> list = bookService.queryAllBooks(bookId);model.addAttribute("bookList", list);return "book";}//跳转到增加书籍页面@RequestMapping("/toAddBook")public String toAddPager() {return "addBook";}//添加书籍的请求@RequestMapping("/addBook")public String addBook(Book books) {bookService.addBook(books);return "redirect:/books/allBook";//重定向allBook请求}//跳转到修改书籍页面@RequestMapping("/toUpdate")public String toUpdatePager(int id, Model model) {Book books = bookService.findBookById(id);model.addAttribute("book", books);return "updateBook";}//修改书籍@RequestMapping("/updateBook")public String updateBook(Book books) {int i = bookService.updateBook(books);if (i > 0) {System.out.println("添加成功" + books);}return "redirect:/books/allBook";}//删除数据@RequestMapping("/deleteBook/{bookId}")public String deleteBook(@PathVariable("bookId") int id) {bookService.deleteBook(id);return "redirect:/books/allBook";}}
package com.demo.dao;import com.demo.pojo.Book;
import org.apache.ibatis.annotations.Param;import java.util.List;public interface BookMapper {int addBook(Book book);int deleteBook( int id);int updateBook(Book book);Book findBookById(Integer id);List<Book> queryAllBook(@Param("bookId") Integer bookId);
}
package com.demo.pojo;import lombok.Data;@Data
public class Book {private Integer id; //图书idprivate String name; //图书名称private String press; //出版社private String author; //作者}
package com.demo.service;
import com.demo.pojo.Book;import java.util.List;public interface BookService {Book findBookById(Integer id);List<Book> queryAllBooks(Integer bookId);int addBook(Book book);int updateBook(Book book);int deleteBook(Integer id);
}
package com.demo.service.impl;import com.demo.dao.BookMapper;
import com.demo.pojo.Book;
import com.demo.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;@Service
public class BookServiceImpl implements BookService {private final BookMapper bookMapper;@Autowiredpublic BookServiceImpl(BookMapper bookMapper) {this.bookMapper = bookMapper;}@Overridepublic Book findBookById(Integer id) {return bookMapper.findBookById(id);}@Overridepublic List<Book> queryAllBooks(Integer bookId) {return bookMapper.queryAllBook(bookId);}@Overridepublic int addBook(Book book) {return bookMapper.addBook(book);}@Overridepublic int updateBook(Book book) {return bookMapper.updateBook(book);}@Overridepublic int deleteBook(Integer id) {return bookMapper.deleteBook(id);}
}
/*Navicat Premium Data TransferSource Server : 127.0.0.1（5.7.40）Source Server Type : MySQLSource Server Version : 50740Source Host : localhost:3305Source Schema : ssmTarget Server Type : MySQLTarget Server Version : 50740File Encoding : 65001Date: 18/12/2023 21:10:14
*/SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;-- ----------------------------
-- Table structure for tb_book
-- ----------------------------
DROP TABLE IF EXISTS `tb_book`;
CREATE TABLE `tb_book` (`id` int(2) NOT NULL AUTO_INCREMENT,`name` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`press` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,`author` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = DYNAMIC;-- ----------------------------
-- Records of tb_book
-- ----------------------------
INSERT INTO `tb_book` VALUES (1, '12121', '212', '12121');SET FOREIGN_KEY_CHECKS = 1;
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.demo.dao.BookMapper"><!-- 添加图书信息 --><insert id="addBook" parameterType="com.demo.pojo.Book">insert into tb_book(name, press, author) values (#{name}, #{press}, #{author})</insert><!-- 删除图书信息 --><delete id="deleteBook" parameterType="int">delete from tb_book where id = #{id}</delete><!-- 更新图书信息 --><update id="updateBook" parameterType="com.demo.pojo.Book">update tb_book set name=#{name}, press=#{press}, author=#{author} where id=#{id}</update><!-- 根据ID查询图书信息 --><select id="findBookById" resultType="com.demo.pojo.Book">select * from tb_book where id = #{id}</select><!-- 查询所有图书信息 --><select id="queryAllBook" resultType="com.demo.pojo.Book">select * from tb_book<where><if test="bookId != null">AND id = #{bookId}</if></where></select>
</mapper>
