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1.导入jar包依赖

   
       
    
     4.0.0
        
    
     com.panghl
        
    
     ssmbuild
        
    
     1.0-SNAPSHOT
        
        
            
                 
      
       junit
                  
      
       junit
                  
      
       4.12
              
             
                 
      
       mysql
                  
      
       mysql-connector-java
                  
      
       8.0.21
              
             
                 
      
       com.mchange
                  
      
       c3p0
                  
      
       0.9.5.2
              
             
             
                 
      
       javax.servlet
                  
      
       servlet-api
                  
      
       2.5
              
             
                 
      
       javax.servlet.jsp
                  
      
       jsp-api
                  
      
       2.2
              
             
                 
      
       javax.servlet
                  
      
       jstl
                  
      
       1.2
              
             
             
                 
      
       org.mybatis
                  
      
       mybatis
                  
      
       3.5.2
              
             
                 
      
       org.mybatis
                  
      
       mybatis-spring
                  
      
       2.0.2
              
             
             
                 
      
       org.springframework
                  
      
       spring-webmvc
                  
      
       5.1.19.RELEASE
              
             
                 
      
       org.springframework
                  
      
       spring-jdbc
                  
      
       5.1.19.RELEASE
              
             
             
                 
      
       org.projectlombok
                  
      
       lombok
                  
      
       1.18.16
              
             
                 
      
       org.aspectj
                  
      
       aspectjweaver
                  
      
       1.9.4
              
             
             
                 
      
       log4j
                  
      
       log4j
                  
      
       1.2.17
              
         
        
        
        
        
            
                 
                      
       
        src/main/resources
                       
                           
        
         **/*.properties
                            
        
         **/*.xml
                        
                       
       
        false
                   
                  
                      
       
        src/main/java
                       
                           
        
         **/*.properties
                            
        
         **/*.xml
                        
                       
       
        false
                   
              
         
    
   

2.Spring整合Mybatis以及dao

创建对应的实体类以及包

applicationContext.xml

mybatis-config.xml

database.properties 

jdbc.driver=com.mysql.cj.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=Asia/Shanghaijdbc.username=rootjdbc.password=123456

 spring-dao.xml

BookMapper.class

package com.panghl.dao;import com.panghl.entity.Books;import java.util.List;/** * @Author panghl * @Date 2021/3/29 22:02 * @Version 1.0 * @Description TODO **/public interface BooksMapper {    void add(Books books);    void delete(Integer id);    void update(Books books);    Books selectById(Integer id);    List
   
     selectBooks();}
   

   
       
    
             insert into books(bookName,bookCounts,detail)        values (#{bookName},#{bookCounts},#{detail})    
        
    
             update books set bookCounts=#{bookCounts},bookName=#{bookName},detail=#{detail}        where bookID=#{bookID}    
        
    
             delete from books where bookID=#{bookID}    
        
            select * from books where bookID=#{id}        
            select * from books    
   

Spring整合Service层

spring-service.xml

BookService.class

package com.panghl.service;import com.panghl.entity.Books;import java.util.List;/** * @Author panghl * @Date 2021/3/29 22:10 * @Version 1.0 * @Description TODO **/public interface BookService {    void add(Books books);    void delete(Integer id);    void update(Books books);    Books selectById(Integer id);    List
   
     selectBooks();}
   

package com.panghl.service.impl;import com.panghl.dao.BooksMapper;import com.panghl.entity.Books;import com.panghl.service.BookService;import org.springframework.stereotype.Service;import java.util.List;/** * @Author panghl * @Date 2021/3/29 22:11 * @Description TODO **/@Servicepublic class BookServiceImpl implements BookService {    private BooksMapper booksMapper;    public void setBookMapper(BooksMapper bookMapper) {        this.booksMapper = bookMapper;    }    @Override    public void add(Books books) {        booksMapper.add(books);    }    @Override    public void delete(Integer id) {        booksMapper.delete(id);    }    @Override    public void update(Books books) {        booksMapper.update(books);    }    @Override    public Books selectById(Integer id) {        return booksMapper.selectById(id);    }    @Override    public List
   
     selectBooks() {        return booksMapper.selectBooks();    }}
   

spring整合MVC

web.xml

   
       
            
     
      dispatcherServlet
             
     
      org.springframework.web.servlet.DispatcherServlet
             
                 
      
       contextConfigLocation
                  
      
       classpath:applicationContext.xml
              
         
        
            
     
      dispatcherServlet
             
     
      /
         
        
            
     
      characterEncodingFilter
             
     
      org.springframework.web.filter.CharacterEncodingFilter
             
                 
      
       namespace
                  
      
       utf-8
              
         
        
            
     
      characterEncodingFilter
             
     
      /*
         
    
   

spring-mvc.xml

BooksController.class

package com.panghl.controller;import com.panghl.entity.Books;import com.panghl.service.BookService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import java.util.List;/** * @Author panghl * @Date 2021/3/29 22:40 * @Description TODO **/@Controller@RequestMapping("/book")public class BooksController {    @Autowired    @Qualifier("bookService")    private BookService bookService;    @RequestMapping("/t1")    public String test1( Model model) {        List
   
     books = bookService.selectBooks();        model.addAttribute("msg",books);        return "test";    }}
   

启动tomcat测试运行：

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