SSM学习成果总结，图书管理系统进行三层整合

一：先看一下效果图

二：目录结构

三：pojo

 package com.zh.pojo;

 import lombok.AllArgsConstructor;

 import lombok.Data;

 import lombok.NoArgsConstructor;

 @Data

 @AllArgsConstructor

 @NoArgsConstructor

 public class Books {

     private  int bookID;

     private String bookName;

     private int bookCounts;

     private String detail;

 }

四：dao

 package com.zh.dao;

 import com.zh.pojo.Books;

 import java.util.List;

 public interface BookMapper {

     void addBooks(Books books);

     List<Books> queryAllBook();

     Books queryBookById(int id);

     void updateBooks(Books books);

     void deleteBooks(int id);

 }

 <?xml version="1.0" encoding="UTF-8" ?>

 <!DOCTYPE mapper

         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

 <mapper namespace = "com.zh.dao.BookMapper">

     <!--增加一个Book-->

     <insert id="addBooks" parameterType="Books">

         insert into ssmbuild.books(bookName,bookCounts,detail)

         values (#{bookName}, #{bookCounts}, #{detail})

     </insert>

     <!--查询全部Book-->

     <select id="queryAllBook" resultType="books">

         SELECT * from ssmbuild.books

     </select>

     <!--更新Book信息-->

     <select id="updateBooks" parameterType="Books">

        update ssmbuild.books

         set bookName = #{bookName},bookCounts = #{bookCounts},detail = #{detail}

         where bookID = #{bookID}

     </select>

     <!--通过Id查询Book信息-->

     <select id="queryBookById"  resultType="Books">

         select  * from books where bookID = #{bookID}

     </select>

     <!--删除书籍信息-->

     <delete id="deleteBooks" parameterType="int">

         delete from books where bookID=#{bookID}

     </delete>

 </mapper>

五：service

 package com.zh.service;

 import com.zh.pojo.Books;

 import java.util.List;

 public interface BookService {

     void addBooks(Books books);

     List<Books> queryAllBook();

     Books queryBookById(int id);

     void updateBooks(Books books);

     void deleteBooks(int id);

 }

  @Service("bookServiceImpl")

 public class BookServiceImpl implements BookService {

     @Autowired

     @Qualifier("bookMapper")

     private BookMapper bookMapper;

     public void addBooks(Books books) {

         bookMapper.addBooks(books);

     }

     public List<Books> queryAllBook() {

         return bookMapper.queryAllBook();

     }

     public Books queryBookById(int id){

         Books books = bookMapper.queryBookById(id);

         return books;

     }

     public  void updateBooks(Books books){

          bookMapper.updateBooks(books);

     }

     public void deleteBooks(int id) {

         bookMapper.deleteBooks(id);

     }

 }

六：controller

 @Controller

 @RequestMapping("/book")

 public class BookController {

         @Autowired

         @Qualifier("bookServiceImpl")

         private BookService bookService;

         @RequestMapping("/allBook")

         public String list(Model model) {

             List<Books> list = bookService.queryAllBook();

             model.addAttribute("list", list);

             return "allbook";

         }

     @RequestMapping("/toAddBook")

     public String toAddPaper() {

         return "addBook";

     }

     @RequestMapping("/addBook")

     public String addPaper(Books books) {

         System.out.println(books);

         bookService.addBooks(books);

         return "redirect:/book/allBook";

     }

     @RequestMapping("/toUpdateBooks")

     public  String toUpdatePaper(Model model ,  int id){

         Books books = bookService.queryBookById(id);

         System.out.println(books);

         model.addAttribute("books", books);

         return "updateBooks";

     }

     @RequestMapping("/updateBooks")

     public String updatePaper(Model model , Books books){

         System.out.println("lalala"+books);

         bookService.updateBooks(books);

         Books books1 = bookService.queryBookById(books.getBookID());

         model.addAttribute("book", books1);

         return "redirect:/book/allBook";

     }

     @RequestMapping("/delete/{bookID}")

     public String deleteBooks(@PathVariable("bookID") int id ){

             bookService.deleteBooks(id);

             return "redirect:/book/allBook";

     }

 }

七：resources

7.1:整合mybatis

 <beans xmlns="http://www.springframework.org/schema/beans"

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xmlns:context="http://www.springframework.org/schema/context"

        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

 <!--&lt;!&ndash;通过原始注解的方式需要对接口实现Impl的编写&ndash;&gt;

 <context:component-scan base-package="com.zh.dao"></context:component-scan>-->

     <!--配置数据源-->

     <context:property-placeholder location="classpath:database.properties"></context:property-placeholder>

     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

         <property name="driverClass" value="${jdbc.driverClass}"/>

         <property name="user" value="${jdbc.user}"/>

         <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/>

         <property name="password" value="${jdbc.password}"/>

         <!--定义连接池最大的容量-->

         <property name="maxPoolSize" value="${jdbc.maxPoolSize}"/>

         <!--定义连接池初始的大小-->

         <property name="initialPoolSize" value="${jdbc.initPoolSize}"/>

         <!-- 关闭连接后不自动commit -->

         <property name="autoCommitOnClose" value="false"/>

         <!-- 获取连接超时时间 -->

         <property name="checkoutTimeout" value="10000"/>

         <!-- 当获取连接失败重试次数 -->

         <property name="acquireRetryAttempts" value="2"/>

     </bean>

     <!--配置sqlSessionFactory对象-->

     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

         <property name="dataSource" ref="dataSource"/>

         <property name="configLocation" value="classpath:mybatis-config.xml"/>

     </bean>

     <!--通过这种方式不用写Impl的实现类-->

     <!--配置扫描Dao的接口包(用这种方式dao层连注解都不用写)-->

     <!--解释 ： https://www.cnblogs.com/jpfss/p/7799806.html-->

     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

         <!-- 注入sqlSessionFactory -->

         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>

         <!-- 给出需要扫描Dao接口包 -->

         <property name="basePackage" value="com.zh.dao"/>

     </bean>

 </beans>

 <?xml version="1.0" encoding="UTF-8" ?>

 <!DOCTYPE configuration

         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

         "http://mybatis.org/dtd/mybatis-3-config.dtd">

 <configuration>

     <typeAliases>

         <package name="com.zh.pojo"></package>

     </typeAliases>

     <mappers>

         <mapper resource="com/zh/dao/BookMapper.xml"/>

     </mappers>

 </configuration>

7.2:整合service

 <beans xmlns="http://www.springframework.org/schema/beans"

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xmlns:context="http://www.springframework.org/schema/context"

        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

     <context:component-scan base-package="com.zh.service"></context:component-scan>

    <!-- <bean id="BookServiceImpl" class="com.zh.service.BookServiceImpl">

         <property name="bookMapper" ref="bookMapper"/>

     </bean>-->

     <!-- 配置事务管理器 -->

     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

         <!-- 注入数据库连接池 -->

         <property name="dataSource" ref="dataSource" />

     </bean>

 </beans>

7.3整合controller

 <beans xmlns="http://www.springframework.org/schema/beans"

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"

        xmlns:context="http://www.springframework.org/schema/context"

        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

     <!-- 配置SpringMVC -->

     <!-- 1.开启SpringMVC注解驱动 -->

     <mvc:annotation-driven />

     <!-- 2.静态资源默认servlet配置-->

     <mvc:default-servlet-handler/>

     <!-- 3.配置jsp 显示ViewResolver视图解析器 -->

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

         <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />

         <property name="prefix" value="/WEB-INF/jsp/" />

         <property name="suffix" value=".jsp" />

     </bean>

     <!-- 4.扫描web相关的bean -->

     <context:component-scan base-package="com.zh.controller" />

 </beans>

八：三层整合

 <beans xmlns="http://www.springframework.org/schema/beans"

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

     <import resource="spring-dao.xml"/>

     <import resource="spring-service.xml"/>

     <import resource="spring-mvc.xml"/>

 </beans>

九：jsp部分

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

 <%@ page contentType="text/html;charset=UTF-8" language="java" %>

 <html>

 <head>

     <title>书籍列表</title>

     <meta name="viewport" content="width=device-width, initial-scale=1.0">

     <!-- 引入 Bootstrap -->

     <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

 </head>

 <body>

 <div class="container">

     <div class="row clearfix">

         <div class="col-md-12 column">

             <div class="page-header">

                 <h1>

                     <small>书籍列表 —— 显示所有书籍</small>

                 </h1>

             </div>

         </div>

     </div>

     <div class="row">

         <div class="col-md-4 column">

             <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a>

         </div>

     </div>

     <div class="row clearfix">

         <div class="col-md-12 column">

             <table class="table table-hover table-striped">

                 <thead>

                 <tr>

                     <th>书籍编号</th>

                     <th>书籍名</th>

                     <th>数量</th>

                     <th>书籍介绍</th>

                     <th>操作</th>

                 </tr>

                 </thead>

                 <tbody>

                 <c:forEach var="book" items="${requestScope.get('list')}">

                     <tr>

                         <td>${book.getBookID()}</td>

                         <td>${book.getBookName()}</td>

                         <td>${book.getBookCounts()}</td>

                         <td>${book.getDetail()}</td>

                         <td>

                             <a href="${pageContext.request.contextPath}/book/toUpdateBooks?id=${book.getBookID()}">更改</a> |

                             <a href="${pageContext.request.contextPath}/book/delete/${book.getBookID()}">删除</a>

                         </td>

                     </tr>

                 </c:forEach>

                 </tbody>

             </table>

         </div>

     </div>

 </div>

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

 <%@ page contentType="text/html;charset=UTF-8" language="java" %>

 <html>

 <head>

     <title>新增书籍</title>

     <meta name="viewport" content="width=device-width, initial-scale=1.0">

     <!-- 引入 Bootstrap -->

     <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

 </head>

 <body>

 <div class="container">

     <div class="row clearfix">

         <div class="col-md-12 column">

             <div class="page-header">

                 <h1>

                     <small>新增书籍</small>

                 </h1>

             </div>

         </div>

     </div>

     <form action="${pageContext.request.contextPath}/book/addBook" method="post">

         书籍名称：<input type="text" name="bookName"><br><br><br>

         书籍数量：<input type="text" name="bookCounts"><br><br><br>

         书籍详情：<input type="text" name="detail"><br><br><br>

         <input type="submit" value="添加">

     </form>

 </div>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>修改信息</title>

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <!-- 引入 Bootstrap -->

    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <div class="row clearfix">

        <div class="col-md-12 column">

            <div class="page-header">

                <h1>

                    <small>修改信息</small>

                </h1>

            </div>

        </div>

    </div>

    <form action="${pageContext.request.contextPath}/book/updateBooks" method="post">

        <input type="hidden" name="bookID" value="${books.getBookID()}"/>

        书籍名称：<input type="text" name="bookName" value="${books.getBookName()}"/>

        书籍数量：<input type="text" name="bookCounts" value="${books.getBookCounts()}"/>

        书籍详情：<input type="text" name="detail" value="${books.getDetail() }"/>

        <input type="submit" value="提交"/>

    </form>

</div>

十：web.xml

 <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"

          version="4.0">

     <servlet>

         <servlet-name>DispatcherServlet</servlet-name>

         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

         <init-param>

             <param-name>contextConfigLocation</param-name>

             <param-value>classpath:applicationContext.xml</param-value>

         </init-param>

         <load-on-startup>1</load-on-startup>

     </servlet>

     <servlet-mapping>

         <servlet-name>DispatcherServlet</servlet-name>

         <url-pattern>/</url-pattern>

     </servlet-mapping>

     <!--encodingFilter-->

     <filter>

         <filter-name>encodingFilter</filter-name>

         <filter-class>

             org.springframework.web.filter.CharacterEncodingFilter

         </filter-class>

         <init-param>

             <param-name>encoding</param-name>

             <param-value>utf-8</param-value>

         </init-param>

     </filter>

     <filter-mapping>

         <filter-name>encodingFilter</filter-name>

         <url-pattern>/*</url-pattern>

     </filter-mapping>

     <session-config>

         <session-timeout>15</session-timeout>

     </session-config>

 </web-app>

巴特西

SSM学习成果总结，图书管理系统进行三层整合

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