我们已经学完，Spring和MyBatis两个框架了，这篇博客中写了一下怎么把两个框架整合在一起

整合这两个框架，在Spring中写一个例子：添加图书

准备数据表

第一步：引入依赖

             
                 
      
       org.springframework
                  
      
       spring-web
                  
      
       4.2.0.RELEASE
              
             
             
                 
      
       org.mybatis
                  
      
       mybatis-spring
                  
      
       1.2.1
              
             
             
                 
      
       org.mybatis
                  
      
       mybatis
                  
      
       3.2.2
              
     

第二步：对案例分层

首先是实体类

Book

package demo23ssm.entity;/** * Created by mycom on 2018/3/13. */public class Book {    private Integer bookId;    private String bookName;    private String bookAuthor;    private Integer bookPrice;    @Override    public String toString() {        return "Book{
    " +                "bookId=" + bookId +                ", bookName='" + bookName + '\'' +                ", bookAuthor='" + bookAuthor + '\'' +                ", bookPrice=" + bookPrice +                '}';    }    public Integer getBookId() {        return bookId;    }    public void setBookId(Integer bookId) {        this.bookId = bookId;    }    public String getBookName() {        return bookName;    }    public void setBookName(String bookName) {        this.bookName = bookName;    }    public String getBookAuthor() {        return bookAuthor;    }    public void setBookAuthor(String bookAuthor) {        this.bookAuthor = bookAuthor;    }    public Integer getBookPrice() {        return bookPrice;    }    public void setBookPrice(Integer bookPrice) {        this.bookPrice = bookPrice;    }}

DAO层：接口和映射文件

package demo23ssm.dao;import demo23ssm.entity.Book;/** * Created by mycom on 2018/3/17. */public interface IBookDao {    //添加图书    public int addBook(Book book);}

     
         
          
      
               insert into book(bookName,bookAuthor,bookPrice) values(#{bookName},#{bookAuthor},#{bookPrice})    
      
     

Service层：接口和实现类

package demo23ssm.service;import demo23ssm.entity.Book;/** * Created by mycom on 2018/3/17. */public interface IBookService {    public int addBook(Book book);}

package demo23ssm.service;import demo23ssm.dao.IBookDao;import demo23ssm.entity.Book;import org.springframework.transaction.annotation.Transactional;/** * Created by mycom on 2018/3/17. */public class BookServiceImpl implements IBookService {    private IBookDao bookDao;    public IBookDao getBookDao() {        return bookDao;    }    public void setBookDao(IBookDao bookDao) {        this.bookDao = bookDao;    }    @Transactional    public int addBook(Book book) {        return bookDao.addBook(book);    }}

Servlet层：

package demo23ssm.servlet;import com.sun.javafx.webkit.WebConsoleListener;import demo23ssm.entity.Book;import demo23ssm.service.IBookService;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.web.context.support.WebApplicationContextUtils;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;/** * Created by mycom on 2018/3/17. */public class BookServlet extends HttpServlet {    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {        request.setCharacterEncoding("utf-8");        String bookName=request.getParameter("bookname");        Integer bookPrice=Integer.parseInt(request.getParameter("bookprice"));        String bookAuthor=request.getParameter("bookauthor");        //创建book对象        Book book=new Book();        book.setBookName(bookName);        book.setBookPrice(bookPrice);        book.setBookAuthor(bookAuthor);        //ApplicationContext context=new ClassPathXmlApplicationContext("applicationContextdemo23ssm.xml");        ApplicationContext context= WebApplicationContextUtils.getRequiredWebApplicationContext(this.getServletContext());        IBookService bookService =(IBookService) context.getBean("bookService");        int count = bookService.addBook(book);        if(count>0){            //转发            request.getSession().setAttribute("book",book);            request.getRequestDispatcher("/index.jsp").forward(request,response);        }else{            response.sendRedirect("/addBook.jsp");        }    }    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {        doPost(request,response);    }}

第三步：配置文件

第四步：编写添加图书和添加成功后的页面

<%--  Created by IntelliJ IDEA.  User: mycom  Date: 2018/3/17  Time: 14:32  To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>    
添加图书
     
          图书名称：
          图书作者：
          图书价格：
          
      
     

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>    
${book.bookName}添加成功