diff --git "a/14 \346\235\216\344\277\212\345\205\264/20230109 \346\200\273\345\244\215\344\271\240.md" "b/14 \346\235\216\344\277\212\345\205\264/20230109 \346\200\273\345\244\215\344\271\240.md"
new file mode 100644
index 0000000000000000000000000000000000000000..ddd670f35a27fcc6125b00f515ffc9a066d10496
--- /dev/null
+++ "b/14 \346\235\216\344\277\212\345\205\264/20230109 \346\200\273\345\244\215\344\271\240.md"
@@ -0,0 +1,568 @@
+pom.xml
+
+```xm
+
+ 4.0.0
+ com.mdd
+ ssm
+ war
+ 1.0-SNAPSHOT
+
+
+
+
+ org.springframework
+ spring-webmvc
+ 5.2.25.RELEASE
+
+
+
+ javax.servlet
+ javax.servlet-api
+ 3.1.0
+ provided
+
+
+
+ com.fasterxml.jackson.core
+ jackson-databind
+ 2.9.1
+
+
+
+
+ org.springframework
+ spring-jdbc
+ 5.2.25.RELEASE
+
+
+ org.springframework
+ spring-test
+ 5.2.25.RELEASE
+
+
+
+ org.mybatis
+ mybatis
+ 3.5.13
+
+
+
+ org.mybatis
+ mybatis-spring
+ 2.0.5
+
+
+
+ com.mysql
+ mysql-connector-j
+ 8.1.0
+
+
+
+ junit
+ junit
+ 4.13.2
+ test
+
+
+
+ com.alibaba
+ druid
+ 1.1.23
+
+
+
+
+
+
+
+
+
+
+
+ org.apache.tomcat.maven
+ tomcat7-maven-plugin
+ 2.2
+
+ 80
+ /
+
+ utf-8
+
+
+
+
+
+
+
+```
+
+src/main/java/com/mdd/config/SpringConfig.java
+
+```java
+package com.mdd.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
+@Configuration
+@ComponentScan({"com.mdd.mapper","com.mdd.service"})
+@Import({JdbcConfig.class, MybatisConfig.class})
+public class SpringConfig {
+}
+
+```
+
+src/main/java/com/mdd/config/MybatisConfig.java
+
+```java
+package com.mdd.config;
+
+
+import org.mybatis.spring.SqlSessionFactoryBean;
+import org.mybatis.spring.mapper.MapperScannerConfigurer;
+import org.springframework.context.annotation.Bean;
+
+import javax.sql.DataSource;
+
+public class MybatisConfig {
+
+ //实体类，数据库连接
+ @Bean
+ public SqlSessionFactoryBean sqlSessionFactoryBean(DataSource dataSource){
+
+ SqlSessionFactoryBean ssfn = new SqlSessionFactoryBean();
+ ssfn.setDataSource(dataSource);
+ ssfn.setTypeAliasesPackage("com.mdd.domain");
+
+ return ssfn;
+
+ }
+
+ //mapper
+ @Bean
+ public MapperScannerConfigurer mapperScannerConfigurer(){
+
+ MapperScannerConfigurer msc = new MapperScannerConfigurer();
+ msc.setBasePackage("com.mdd.mapper");
+ return msc;
+
+ }
+
+
+
+}
+```
+
+src/main/java/com/mdd/config/JdbcConfig.java
+
+```java
+package com.mdd.config;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import org.springframework.context.annotation.Bean;
+
+import javax.sql.DataSource;
+
+public class JdbcConfig {
+
+ @Bean
+ public DataSource dataSource(){
+
+ DruidDataSource ds = new DruidDataSource();
+
+ ds.setDriverClassName("com.mysql.cj.jdbc.Driver");
+ ds.setUrl("jdbc:mysql:///mybatis");
+ ds.setUsername("root");
+ ds.setPassword("root");
+
+ return ds;
+
+ }
+}
+
+```
+
+src/main/java/com/mdd/config/SpringMvcConfig.java
+
+```java
+package com.mdd.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+@ComponentScan("com.mdd")
+@EnableWebMvc
+public class SpringMvcConfig implements WebMvcConfigurer {
+ @Override
+ public void addResourceHandlers(ResourceHandlerRegistry registry) {
+
+ //放行
+ registry.addResourceHandler("/css/**").addResourceLocations("/css/");
+ registry.addResourceHandler("/js/**").addResourceLocations("/js/");
+ registry.addResourceHandler("/lib/**").addResourceLocations("/lib/");
+ registry.addResourceHandler("/index.html").addResourceLocations("/index.html");
+ registry.addResourceHandler("/favicon.ico").addResourceLocations("/favicon.ico");
+
+ }
+
+ //ctrl+o(字母o) 重写方法
+ // add+H 快捷方式
+
+}
+
+```
+
+src/main/java/com/mdd/config/WebConfig.java
+
+```java
+package com.mdd.config;
+
+import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
+
+public class WebConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
+ @Override
+ protected Class[] getRootConfigClasses() {
+ return new Class[]{SpringConfig.class};
+ }
+
+ @Override
+ protected Class[] getServletConfigClasses() {
+ return new Class[]{SpringMvcConfig.class};
+ }
+
+ @Override
+ protected String[] getServletMappings() {
+ return new String[]{"/"};
+ }
+}
+
+```
+
+src/main/java/com/mdd/controller/BookController.java
+
+```java
+package com.mdd.controller;
+
+import com.mdd.domain.Book;
+import com.mdd.domain.R;
+import com.mdd.service.BookService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/books")
+public class BookController {
+
+ @Autowired
+ private BookService bookService;
+
+ //查看数据库数据,带提示词
+ @GetMapping
+ public R getAll(){
+ List books = bookService.getAll();
+ return R.success(200,books);
+ }
+
+ //查看数据库数据
+// @GetMapping
+// public List getAll(){
+// return bookService.getAll();
+// }
+
+
+ //添加数据
+ @PostMapping
+ //添加数据
+ public Book addBook(@RequestBody Book book){
+ bookService.addBook(book);
+ return book;
+
+ }
+
+ //修改数据
+ @PutMapping
+ public Book updateBook(@RequestBody Book book){
+ bookService.updateBook(book);
+ return book;
+ }
+
+ //删除
+ @DeleteMapping("/{id}")
+ public R deleteBookById(@PathVariable Integer id){
+ Integer i = bookService.deleteBook(id);
+ if (i>0) {
+ return R.success(200,"删除成功！");
+ }else{
+ return R.failure(404,"删除失败");
+ }
+
+ }
+
+ //根据id查询
+ @GetMapping("/{id}")
+ public Book getBook(@PathVariable Integer id){
+ return bookService.getBook(id);
+ }
+
+
+
+}
+```
+
+src/main/java/com/mdd/domain/Book.java
+
+```java
+package com.mdd.domain;
+
+public class Book {
+
+ private Integer id;
+ private String bookName;
+ private String author;
+ private String publisher;
+
+ @Override
+ public String toString() {
+ return "Book{" +
+ "id=" + id +
+ ", bookName='" + bookName + '\'' +
+ ", author='" + author + '\'' +
+ ", publisher='" + publisher + '\'' +
+ '}';
+ }
+
+ public Integer getId() {
+ return id;
+ }
+
+ public void setId(Integer id) {
+ this.id = id;
+ }
+
+ public String getBookName() {
+ return bookName;
+ }
+
+ public void setBookName(String bookName) {
+ this.bookName = bookName;
+ }
+
+ public String getAuthor() {
+ return author;
+ }
+
+ public void setAuthor(String author) {
+ this.author = author;
+ }
+
+ public String getPublisher() {
+ return publisher;
+ }
+
+ public void setPublisher(String publisher) {
+ this.publisher = publisher;
+ }
+
+ public Book(Integer id, String bookName, String author, String publisher) {
+ this.id = id;
+ this.bookName = bookName;
+ this.author = author;
+ this.publisher = publisher;
+ }
+
+ public Book() {
+ }
+}
+
+```
+
+src/main/java/com/mdd/domain/R.java
+
+```java
+package com.mdd.domain;
+
+public class R {
+
+ private Integer code;//错误代码
+ private String msg;//提示信息
+ private Object data;//返回的数据，Object通用的
+
+ @Override
+ public String toString() {
+ return "R{" +
+ "code=" + code +
+ ", msg='" + msg + '\'' +
+ ", data=" + data +
+ '}';
+ }
+
+ public Integer getCode() {
+ return code;
+ }
+
+ public void setCode(Integer code) {
+ this.code = code;
+ }
+
+ public String getMsg() {
+ return msg;
+ }
+
+ public void setMsg(String msg) {
+ this.msg = msg;
+ }
+
+ public Object getData() {
+ return data;
+ }
+
+ public void setData(Object data) {
+ this.data = data;
+ }
+
+ public R(Integer code, String msg, Object data) {
+ this.code = code;
+ this.msg = msg;
+ this.data = data;
+ }
+
+ public R() {
+ }
+
+ public static R success(Integer code, Object data) {
+ R r = new R();
+ r.setData(data);
+ r.setCode(code);
+ return r;
+ }
+
+ public static R success(Integer code,String msg){
+ R r = new R();
+ r.setCode(code);
+ r.setMsg(msg);
+ return r ;
+ }
+
+ public static R failure(Integer code,String msg){
+ R r = new R();
+ r.setMsg(msg);
+ r.setCode(code);
+ return r;
+ }
+
+}
+
+```
+
+src/main/java/com/mdd/mapper/BookMapper.java
+
+```java
+package com.mdd.mapper;
+
+import com.mdd.domain.Book;
+import org.apache.ibatis.annotations.Delete;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+import java.util.List;
+
+public interface BookMapper {
+
+
+ @Select("select id, book_name as bookName, author, publisher from tb_book order by id desc")
+ List getAll();
+
+ @Insert("insert into tb_book (book_name, author, publisher) values (#{bookName},#{author},#{publisher})")
+ void addBook(Book book);
+
+ @Update("update tb_book set book_name = #{bookName},author = #{author},publisher = #{publisher} where id = #{id}")
+ void updateBook(Book book);
+ @Delete("delete from tb_book where id = #{id};")
+ Integer deleteBook(Integer id);
+ @Select("select id, book_name as bookName, author, publisher from tb_book where id = #{id}")
+ Book getBook(Integer id);
+}
+
+```
+
+src/main/java/com/mdd/service/BookService.java
+
+```java
+package com.mdd.service;
+
+import com.mdd.domain.Book;
+
+import java.util.List;
+
+public interface BookService {
+ List getAll();
+
+ void addBook(Book book);
+
+ void updateBook(Book book);
+
+ Integer deleteBook(Integer id);
+
+ Book getBook(Integer id);
+}
+
+```
+
+src/main/java/com/mdd/service/Impl/BookServiceImpl.java
+
+```java
+package com.mdd.service.Impl;
+
+import com.mdd.domain.Book;
+import com.mdd.mapper.BookMapper;
+import com.mdd.service.BookService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+
+import java.util.List;
+
+@Service
+public class BookServiceImpl implements BookService {
+
+ @Autowired
+ private BookMapper bookMapper;
+
+ public List getAll() {
+ return bookMapper.getAll();
+ }
+
+ public void addBook(Book book) {
+ bookMapper.addBook(book);
+ }
+
+
+ public void updateBook(Book book) {
+ bookMapper.updateBook(book);
+ }
+
+
+ public Integer deleteBook(Integer id) {
+ return bookMapper.deleteBook(id);
+ }
+
+
+ public Book getBook(Integer id) {
+ return bookMapper.getBook(id);
+ }
+}
+
+```
+
+记得在webapp文件李假如html文件
\ No newline at end of file
diff --git "a/14 \346\235\216\344\277\212\345\205\264/20240104 SpringMVC.md" "b/14 \346\235\216\344\277\212\345\205\264/20240104 SpringMVC.md"
new file mode 100644
index 0000000000000000000000000000000000000000..14720363f75b17e99dfdeef0a74f1ab86a087413
--- /dev/null
+++ "b/14 \346\235\216\344\277\212\345\205\264/20240104 SpringMVC.md"
@@ -0,0 +1,585 @@
+pom.xml
+
+```xml
+
+ 4.0.0
+ com.mdd
+ springmvc_04
+ war
+ 1.0-SNAPSHOT
+
+
+
+
+ org.springframework
+ spring-webmvc
+ 5.2.25.RELEASE
+
+
+
+ javax.servlet
+ javax.servlet-api
+ 3.1.0
+ provided
+
+
+
+ com.fasterxml.jackson.core
+ jackson-databind
+ 2.11.3
+
+
+
+
+ org.springframework
+ spring-jdbc
+ 5.2.25.RELEASE
+
+
+ org.springframework
+ spring-test
+ 5.2.25.RELEASE
+
+
+
+ org.mybatis
+ mybatis
+ 3.5.13
+
+
+
+ org.mybatis
+ mybatis-spring
+ 2.0.5
+
+
+
+ com.mysql
+ mysql-connector-j
+ 8.1.0
+
+
+
+ junit
+ junit
+ 4.13.2
+ test
+
+
+
+ com.alibaba
+ druid
+ 1.1.23
+
+
+
+
+
+
+
+
+
+
+
+ org.apache.tomcat.maven
+ tomcat7-maven-plugin
+ 2.2
+
+ 80
+ /
+
+ utf-8
+
+
+
+
+
+
+```
+
+src/main/java/com/mdd/config/SpringMvcConfig.java
+
+```java
+package com.mdd.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
+@Configuration
+@ComponentScan("com.mdd.controller")
+@EnableWebMvc
+public class SpringMvcConfig {
+}
+
+```
+
+src/main/java/com/mdd/config/WebConfig.java
+
+```java
+package com.mdd.config;
+
+import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
+
+public class WebConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
+ @Override
+ protected Class[] getRootConfigClasses() {
+// SpringConfig.class
+ return new Class[]{SpringConfig.class}; // SpringConfig.class
+ }
+
+ @Override
+ protected Class[] getServletConfigClasses() {
+ return new Class[]{SpringMvcConfig.class};
+ }
+
+ @Override
+ protected String[] getServletMappings() {
+ return new String[]{"/"};
+ }
+}
+
+```
+
+src/main/java/com/mdd/domain/Brand.java
+
+```java
+package com.mdd.domain;
+
+public class Brand {
+ private Integer id;
+ private String brandName;
+ private String companyName;
+ private Integer ordered;
+ private String description;
+ private Integer status;
+
+
+ // 提供getter/setter方法，有参，无参构造器，toString,也就是标准的JavaBean ,快捷方式ALT+insert
+
+ public Brand() {
+ }
+
+ public Brand(Integer id, String brandName, String companyName, Integer ordered, String description,
+ Integer status) {
+ this.id = id;
+ this.brandName = brandName;
+ this.companyName = companyName;
+ this.ordered = ordered;
+ this.description = description;
+ this.status = status;
+ }
+
+ public Integer getId() {
+ return id;
+ }
+
+ public void setId(Integer id) {
+ this.id = id;
+ }
+
+ public String getBrandName() {
+ return brandName;
+ }
+
+ public void setBrandName(String brandName) {
+ this.brandName = brandName;
+ }
+
+ public String getCompanyName() {
+ return companyName;
+ }
+
+ public void setCompanyName(String companyName) {
+ this.companyName = companyName;
+ }
+
+ public Integer getOrdered() {
+ return ordered;
+ }
+
+ public void setOrdered(Integer ordered) {
+ this.ordered = ordered;
+ }
+
+ public String getDescription() {
+ return description;
+ }
+
+ public void setDescription(String description) {
+ this.description = description;
+ }
+
+ public Integer getStatus() {
+ return status;
+ }
+
+ public void setStatus(Integer status) {
+ this.status = status;
+ }
+
+ @Override
+ public String toString() {
+ return "Brand{" +
+ "id=" + id +
+ ", brandName='" + brandName + '\'' +
+ ", companyName='" + companyName + '\'' +
+ ", ordered=" + ordered +
+ ", description='" + description + '\'' +
+ ", status=" + status +
+ '}';
+ }
+}
+
+```
+
+src/main/java/com/mdd/domain/R.java
+
+```java
+package com.mdd.domain;
+
+public class R {
+ private Integer code;
+ private String msg;
+ private Object date;
+
+ public R() {
+ }
+
+ public static R success(Integer code,Object data){
+ return new R(code,data);
+ }
+
+ public static R success(Integer code,String msg){
+ return new R(code,msg);
+ }
+
+
+
+ public R(Integer code, Object date) {
+ this.code = code;
+ this.date = date;
+ }
+
+ public R(Integer code, String msg, Object date) {
+ this.code = code;
+ this.msg = msg;
+ this.date = date;
+
+ }
+
+ public R(Integer code, String msg) {
+ this.code = code;
+ this.msg = msg;
+ }
+
+ public Integer getCode() {
+ return code;
+ }
+
+ public void setCode(Integer code) {
+ this.code = code;
+ }
+
+ public String getMsg() {
+ return msg;
+ }
+
+ public void setMsg(String msg) {
+ this.msg = msg;
+ }
+
+ public Object getDate() {
+ return date;
+ }
+
+ public void setDate(Object date) {
+ this.date = date;
+ }
+
+ @Override
+ public String toString() {
+ return "R{" +
+ "code=" + code +
+ ", msg='" + msg + '\'' +
+ ", date=" + date +
+ '}';
+ }
+}
+
+```
+
+src/main/java/com/mdd/controller/BrandController.java
+
+```java
+package com.mdd.controller;
+
+import com.mdd.domain.Brand;
+import com.mdd.service.BrandService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+//@Controller
+//@ResponseBody
+@RestController
+@RequestMapping( "/brands")
+public class BrandController {
+ // 表现层要调用业务层
+ @Autowired
+ private BrandService brandService;
+ // 添加
+ @PostMapping
+ public String addBrand(@RequestBody Brand brand){
+ System.out.println("接收到一个Brand==》"+brand);
+ brandService.addBrand(brand);
+ return "add ok!";
+ }
+
+
+ // 修改
+ @PutMapping
+ public String editBrand(@RequestBody Brand brand){
+ brandService.editBrand(brand);
+ return "add ok!";
+ }
+
+ // 查所有
+
+ @GetMapping
+ public List getBrands(){
+ List brands = brandService.selectAll();
+ return brands;
+ }
+
+ // 查单个
+ @GetMapping("/{id}")
+ public Brand getBrand(@PathVariable Integer id){
+ System.out.println("接收到一个id==》"+id);
+ System.out.println("从数据库从查询到了。id="+id+"的品牌");
+
+ return new Brand(id,"华为10086","大华为",100,"科技公司",1);
+ }
+
+ // 删除
+ @DeleteMapping("/{id}")
+ public String delBrand(@PathVariable Integer id){
+ System.out.println("接收到一个id==》"+id);
+ System.out.println("从数据库从删除了。id="+id+"的品牌");
+ return "delete ok!";
+ }
+}
+```
+
+src/main/java/com/mdd/config/SpringConfig.java
+
+```java
+package com.mdd.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
+@Configuration
+@ComponentScan({"com.mdd.service", "com.mdd.mapper"})
+@Import({JdbcConfig.class, MybatisConfig.class})
+public class SpringConfig {
+}
+
+```
+
+src/main/java/com/mdd/config/JdbcConfig.java
+
+```java
+package com.mdd.config;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import org.springframework.context.annotation.Bean;
+
+import javax.sql.DataSource;
+
+public class JdbcConfig {
+ @Bean
+ public DataSource dataSource(){
+ DruidDataSource ds = new DruidDataSource();
+ ds.setDriverClassName("com.mysql.cj.jdbc.Driver");
+ ds.setUrl("jdbc:mysql:///mybatis");
+ ds.setUsername("root");
+ ds.setPassword("root"); //123456
+ return ds;
+ }
+}
+```
+
+src/main/java/com/mdd/config/MybatisConfig.java
+
+```java
+package com.mdd.config;
+
+import org.mybatis.spring.SqlSessionFactoryBean;
+import org.mybatis.spring.mapper.MapperScannerConfigurer;
+import org.springframework.context.annotation.Bean;
+
+import javax.sql.DataSource;
+
+public class MybatisConfig {
+
+ @Bean
+ public SqlSessionFactoryBean sqlSessionFactoryBean(DataSource dataSource){
+ SqlSessionFactoryBean ssfb = new SqlSessionFactoryBean();
+ // 设置实体类的包
+ ssfb.setTypeAliasesPackage("com.mdd.domain");
+ // 设置数据源dataSource
+ ssfb.setDataSource(dataSource);
+ return ssfb;
+ }
+
+ // 设置Mapper
+ @Bean
+ public MapperScannerConfigurer mapperScannerConfigurer(){
+ MapperScannerConfigurer msc = new MapperScannerConfigurer();
+ // 设置代理的包
+ msc.setBasePackage("com.mdd.mapper");
+ return msc;
+ }
+}
+
+```
+
+src/main/java/com/mdd/mapper/BrandMapper.java
+
+```java
+package com.mdd.service.impl;
+
+import com.mdd.domain.Brand;
+import com.mdd.mapper.BrandMapper;
+import com.mdd.service.BrandService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class BrandServiceImpl implements BrandService {
+ // 业务层要调用数据层的对象，所以先自动装配BrandMapper
+ @Autowired
+ private BrandMapper brandMapper;
+
+
+ @Override
+ public List selectAll() {
+ System.out.println("业务层开始：查询所有");
+ return brandMapper.selectAll();
+ }
+
+ @Override
+ public Brand selectById(int id) {
+ System.out.println("业务层开始：查某个");
+
+ return brandMapper.selectById(id);
+ }
+
+ @Override
+ public void deleteById(int id) {
+ brandMapper.deleteById(id);
+ }
+
+ @Override
+ public void addBrand(Brand brand) {
+ brandMapper.addBrand(brand);
+ }
+
+ @Override
+ public void editBrand(Brand brand) {
+ brandMapper.editBrand(brand);
+ }
+}
+
+```
+
+src/main/java/com/mdd/service/impl/BrandServiceImpl.java
+
+```java
+package com.mdd.service.impl;
+
+import com.mdd.domain.Brand;
+import com.mdd.mapper.BrandMapper;
+import com.mdd.service.BrandService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class BrandServiceImpl implements BrandService {
+ // 业务层要调用数据层的对象，所以先自动装配BrandMapper
+ @Autowired
+ private BrandMapper brandMapper;
+
+
+ @Override
+ public List selectAll() {
+ System.out.println("业务层开始：查询所有");
+ return brandMapper.selectAll();
+ }
+
+ @Override
+ public Brand selectById(int id) {
+ System.out.println("业务层开始：查某个");
+
+ return brandMapper.selectById(id);
+ }
+
+ @Override
+ public void deleteById(int id) {
+ brandMapper.deleteById(id);
+ }
+
+ @Override
+ public void addBrand(Brand brand) {
+ brandMapper.addBrand(brand);
+ }
+
+ @Override
+ public void editBrand(Brand brand) {
+ brandMapper.editBrand(brand);
+ }
+}
+
+```
+
+src/main/java/com/mdd/service/BrandService.java(接口)
+
+```java
+package com.mdd.service;
+
+import com.mdd.domain.Brand;
+
+import java.util.List;
+
+public interface BrandService {
+ // 查所有
+
+ List selectAll();
+
+ // id查某个
+
+ Brand selectById(int id);
+
+ // id 删除某个
+ void deleteById(int id);
+
+ // 添加
+
+ void addBrand(Brand brand);
+
+
+ // 修改
+
+ void editBrand(Brand brand);
+}
+
+
+```
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