【SSM整合】图书管理系统

展示

一个使用SSM框架的简单图书管理系统
主要目的是为熟悉 SSM 框架的开发，完成最为常见的 增删查改 功能；前端较为简略
主页：

添加书籍

修改书籍

删除会从数据库中删除这本书并回到显示所有书籍页面
查询单本书籍

查询书籍未找到时

项目实现如下：

本地环境

IDEA 、MySQL 8.0.13 、Tomcat7 、Maven3.5.4

要求：需要熟练掌握 MySQL数据库，Spirng，javaWeb 及 MyBatis 知识，简单的前端知识

数据库环境

创建一个存放书籍数据的数据库表

CREATE DATABASE ssm_book;

USE ssm_book;

CREATE TABLE `books` (
`bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id',
`bookName` VARCHAR(100) NOT NULL COMMENT '书名',
`bookCounts` INT(11) NOT NULL COMMENT '数量',
`detail` VARCHAR(200) NOT NULL COMMENT '描述',
KEY `bookID` (`bookID`)
) ENGINE=INNODB DEFAULT CHARSET=utf8；

INSERT  INTO `books`(`bookID`,`bookName`,`bookCounts`,`detail`)VALUES
(1,'Java',1,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到进牢');

基本环境搭建

1. 新建一个 Maven 项目：ssm_book，添加 web 的支持

2. 导入相关的 pom 依赖

   
   <dependencies>
       
       <dependency>
           <groupId>junitgroupId>
           <artifactId>junitartifactId>
           <version>4.12version>
       dependency>
       
       <dependency>
           <groupId>mysqlgroupId>
           <artifactId>mysql-connector-javaartifactId>
           <version>8.0.13version>
       dependency>
       
       <dependency>
           <groupId>com.mchangegroupId>
           <artifactId>c3p0artifactId>
           <version>0.9.5.2version>
       dependency>
   
       
       <dependency>
           <groupId>javax.servletgroupId>
           <artifactId>servlet-apiartifactId>
           <version>2.5version>
       dependency>
       <dependency>
           <groupId>javax.servlet.jspgroupId>
           <artifactId>jsp-apiartifactId>
           <version>2.2version>
       dependency>
       <dependency>
           <groupId>javax.servletgroupId>
           <artifactId>jstlartifactId>
           <version>1.2version>
       dependency>
   
       
       <dependency>
           <groupId>org.mybatisgroupId>
           <artifactId>mybatisartifactId>
           <version>3.5.2version>
       dependency>
       <dependency>
           <groupId>org.mybatisgroupId>
           <artifactId>mybatis-springartifactId>
           <version>2.0.2version>
       dependency>
   
       
       <dependency>
           <groupId>org.springframeworkgroupId>
           <artifactId>spring-webmvcartifactId>
           <version>5.1.9.RELEASEversion>
       dependency>
       <dependency>
           <groupId>org.springframeworkgroupId>
           <artifactId>spring-jdbcartifactId>
           <version>5.1.9.RELEASEversion>
       dependency>
   dependencies>
   

3. Maven 资源过滤设置

   
   <build>
       <resources>
           <resource>
               <directory>src/main/javadirectory>
               <includes>
                   <include>**/*.propertiesinclude>
                   <include>**/*.xmlinclude>
               includes>
               <filtering>falsefiltering>
           resource>
           <resource>
               <directory>src/main/resourcesdirectory>
               <includes>
                   <include>**/*.propertiesinclude>
                   <include>**/*.xmlinclude>
               includes>
               <filtering>falsefiltering>
           resource>
       resources>
   build>
   

4. 建立基本结构和配置框架：

   创建如下四个包

   • com.mithrandir.pojo
   • com.mithrandir.dao
   • com.mithrandir.service
   • com.mithrandir.controller

   resources 目录下：

   • mybatis-config.xml

     
     
     <configuration>
     
     configuration>
     

   • applicationContext.xml

     
     <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">
     
     beans>
     

Mybatis层编写

1. 数据库配置文件 database.properties

   jdbc.driver=com.mysql.cj.jdbc.Driver
   jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
   jdbc.username=root
   jdbc.password=mysql700
   

2. IDEA 关联数据库

3. 编写 MyBatis 的核心配置文件

   
   
   <configuration>
   
       
   
       <typeAliases>
           <package name="com.mithrandir.pojo"/>
       typeAliases>
       <mappers>
           <mapper resource="com/mithrandir/dao/BookMapper.xml"/>
       mappers>
   
   configuration>
   

4. 编写数据库对应的实体类 com.kuang.pojo.Books

   此处使用 lombok 插件

   package com.mithrandir.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;
   
   }
   

5. 编写 dao 层的 Mapper 接口

   public interface BookMapper {
          
   
       //增加一本书
       int addBook(Books books);
   
       //删除一本书
       int deleteBookById(@Param("bookId") int id);
   
       //更新一本书
       int updateBook(Books books);
   
       //查询一本书
       Books queryBookById(@Param("bookId") int id);
   
       //查询全部的书
       List<Books> queryAllBook();
   }
   

6. 编写接口对应的 Mapper.xml 文件 BookMapper.xml 。需要导入MyBatis的包：

   
   
   <mapper namespace="com.mithrandir.dao.BookMapper">
       <insert id="addBook" parameterType="Books">
           insert into ssm_book.books (bookName,bookCounts,detail)
           values (#{bookName},#{bookCounts},#{detail});
       insert>
   
       <delete id="deleteBookById" parameterType="int">
           delete from ssm_book.books where bookID = #{bookId};
       delete>
   
       <update id="updateBook" parameterType="com.mithrandir.pojo.Books">
           update ssm_book.books
           set bookName=#{bookName}, bookCounts=#{bookCounts}, detail=#{detail}
           where bookID=#{bookID};
       update>
       
       <select id="queryBookById" parameterType="int" resultType="com.mithrandir.pojo.Books">
           select * from ssm_book.books where bookID = #{bookId};
       select>
   
       <select id="queryAllBook" resultType="com.mithrandir.pojo.Books">
           select * from ssm_book.books;
       select>
   
   mapper>
   

7. 编写 Service 层的接口和实现类

   接口：

   public interface BookService {
          
   
       //增加一本书
       int addBook(Books books);
   
       //删除一本书
       int deleteBookById(int id);
   
       //更新一本书
       int updateBook(Books books);
   
       //查询一本书
       Books queryBookById(int id);
   
       //查询全部的书
       List<Books> queryAllBook();
   }
   

   实现类

   @Service
   public class BookServiceImpl implements BookService{
          
       //service调dao层，组合dao：
       private BookMapper bookMapper;
       public void setBookMapper(BookMapper bookMapper) {
          
           this.bookMapper = bookMapper;
       }
   
       @Override
       public int addBook(Books books) {
          
           return bookMapper.addBook(books);
       }
   
       @Override
       public int deleteBookById(int id) {
          
           return bookMapper.deleteBookById(id);
       }
   
       @Override
       public int updateBook(Books books) {
          
           return bookMapper.updateBook(books);
       }
   
       @Override
       public Books queryBookById(int id) {
          
           return bookMapper.queryBookById(id);
       }
   
       @Override
       public List<Books> queryAllBook() {
          
           return bookMapper.queryAllBook();
       }
   }
   

   到此，底层需求操作编写完毕！

Spring层

1. 配置 Spring整合MyBatis，我们这里数据源使用 c3p0连接池：

2. 编写 Spring 整合 Mybatis 的相关的配置文件：spring-dao.xml

   
   <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:property-placeholder location="classpath:database.properties"/>
   
       
       <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
           
           <property name="driverClass" value="${jdbc.driver}"/>
           <property name="jdbcUrl" value="${jdbc.url}"/>
           <property name="user" value="${jdbc.username}"/>
           <property name="password" value="${jdbc.password}"/>
   
           
           <property name="maxPoolSize" value="30"/>
           <property name="minPoolSize" value="10"/>
           
           <property name="autoCommitOnClose" value="false"/>
           
           <property name="checkoutTimeout" value="10000"/>
           
           <property name="acquireRetryAttempts" value="2"/>
       bean>
   
       
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
           
           <property name="dataSource" ref="dataSource"/>
           
           <property name="configLocation" value="classpath:mybatis-config.xml"/>
       bean>
   
       
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
           
           <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
           
           <property name="basePackage" value="com.mithrandir.dao"/>
       bean>
   beans>
   

3. Spring 整合 service层

   <?xml version="1.0" encoding="UTF-8"?>
   <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
           http://www.springframework.org/schema/context/spring-context.xsd">
   
       <!--1.扫描service下的包-->
       <context:component-scan base-package="com.mithrandir.service"/>
   
       <!--2.将我们的所有业务类，注入到Spring，可以通过配置，或者注解实现-->
       <bean id="bookServiceImpl" class="com.mithrandir.service.BookServiceImpl">
           <property name="bookMapper" ref="bookMapper"/>
       </bean>
   
       <!--3.声明式事务配置-->
       <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
           <!--注入数据源-->
           <property name="dataSource" ref="dataSource"/>
       </bean>
       
   </beans>
   

   Spring层搞定！再次理解一下，Spring就是一个大杂烩，一个容器

SpringMVC层

1. 添加web支持

2. 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>springmvcservlet-name>
           <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
           <init-param>
               <param-name>contextConfigLocationparam-name>
               <param-value>classpath:applicationContext.xmlparam-value>
           init-param>
           <load-on-startup>1load-on-startup>
       servlet>
       <servlet-mapping>
           <servlet-name>springmvcservlet-name>
           <url-pattern>/url-pattern>
       servlet-mapping>
   
       
       <filter>
           <filter-name>encodingFilterfilter-name>
           <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
           <init-param>
               <param-name>encodingparam-name>
               <param-value>utf-8param-value>
           init-param>
       filter>
       <filter-mapping>
           <filter-name>encodingFilterfilter-name>
           <url-pattern>/*url-pattern>
       filter-mapping>
   
       
       <session-config>
           <session-timeout>15session-timeout>
       session-config>
   
   web-app>
   

3. spring-mvc.xml

   
   <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
          http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
   
       
       <mvc:annotation-driven/>
       
       <mvc:default-servlet-handler/>
       
       <context:component-scan base-package="com.mithrandir.controller"/>
   
       
       <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
           <property name="prefix" value="/WEB-INF/jsp/"/>
           <property name="suffix" value=".jsp"/>
       bean>
   beans>
   

   至此，配置文件部分暂时结束

Controller 和 视图层 编写

1. BookController 类编写，方法一：查询全部书籍

   @Controller
   @RequestMapping("/book")
   public class BookController {
          
       //controller层 调用 service层
       @Autowired
       @Qualifier("bookServiceImpl")
       private BookService bookService;
   
       //查询全部的书籍，并返回到一个书籍展示页面
       @RequestMapping("/allBook")
       public String list(Model model){
          
           List<Books> books = bookService.queryAllBook();
           model.addAttribute("list",books);
           return "allBook";
       }
   }
   

2. 编写首页 index.jsp

   <%@ page contentType="text/html;charset=UTF-8" language="java" %>
   
   
       
       
   
   
   
   
       进入书籍页面
   
   
   
   
   

3. 书籍列表页面 allBook.jsp

   <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
   <%@ page contentType="text/html;charset=UTF-8" language="java" %>
   
   
       
   
       <%--引入BoodStrap--%>
       
   
   
   
   
   
       
   
           
   
               
   
                   
   
                       书籍列表--显示所有书籍
                   
               
           
   
           
   
               
   
                   新增书籍
               
           
   
       
   
       
   
           
   
               
                   <%--书籍从书籍库中查询出来，从这个list中遍历出来：foreach--%>
                   
                       
   
                   
   
                   
   
                       
   书籍编号
                       
   书籍名称
                       
   书籍数量
                       
   书籍详情
                       
   操作
                   
                   
   
                   
   
                           
   ${book.bookID}
                           
   ${book.bookName}
                           
   ${book.bookCounts}
                           
   ${book.detail}
                           
   
                               修改
                                |  
                               删除
                           
                       
                   
                   
               
           
       
   
   
   
   

4. BookController 类编写，方法二：添加书籍

   //跳转到增加书籍页面
   @RequestMapping("/toAddBook")
   public String toAddBook(){
          
       return "addBook";
   }
   
   //添加书籍的请求
   @RequestMapping("/addBook")
   public String addBook(Books books) {
          
       bookService.addBook(books);
   
       return "redirect:/book/allBook"; //重定向到我们的@RequestMapping("/allBook")请求
   }
   

5. 添加书籍页面：addBook.jsp

   <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
   <%@ page contentType="text/html;charset=UTF-8" language="java" %>
   
   
       
   
       <%--引入BoodStrap--%>
       
   
   
   
   
   
       
   
           
   
               
   
                   
   
                       书籍列表--显示所有书籍
                   
               
           
   
           
   
               
   
                   新增书籍
               
           
   
       
   
       
   
           
   
               
                   <%--书籍从书籍库中查询出来，从这个list中遍历出来：foreach--%>
                   
                       
   
                   
   
                   
   
                       
   书籍编号
                       
   书籍名称
                       
   书籍数量
                       
   书籍详情
                       
   操作
                   
                   
   
                   
   
                           
   ${book.bookID}
                           
   ${book.bookName}
                           
   ${book.bookCounts}
                           
   ${book.detail}
                           
   
                               修改
                                |  
                               删除
                           
                       
                   
                   
               
           
       
   
   
   
   

6. BookController 类编写，方法三：修改书籍

   //跳转到修改页面
   @RequestMapping("/toUpdateBook/{bookID}")
   public String toUpdateBook(@PathVariable("bookID") int bookID, Model model){
          
       Books book = bookService.queryBookById(bookID);
       model.addAttribute("QBook",book);
       return "updateBook";
   }
   
   //修改书籍的请求
   @RequestMapping("/updateBook")
   public String updateBook(Books book){
          
       bookService.updateBook(book);
   
       return "redirect:/book/allBook";
   }
   

7. 修改书籍页面 updateBook.jsp

   <%@ page contentType="text/html;charset=UTF-8" language="java" %>
   
   
       
   
       <%--引入BoodStrap--%>
       
   
   
   
   
   
       
   
           
   
               
   
                   
   
                       修改书籍
                   
               
           
       
   
       
   
           <%--前端传递隐藏域--%>
           
   
           
   
               书籍名称：
               
           
           
   
               书籍数量：
               
           
           
   
               书籍描述：
               
           
           
   
               
           
       
   
   
   
   
   
   

8. BookController 类编写，方法四：删除书籍

   //删除书籍
   @RequestMapping("/deleteBook/{bookID}")
   public String deleteBook(@PathVariable("bookID") int bookID){
          
       bookService.deleteBookById(bookID);
   
       return "redirect:/book/allBook";
   }
   

增加功能：通过名字查询一本书

1. 首先在dao层接口中添加方法

   //通过名字查询一本书
   Books queryBookByName(String booKName);
   

2. 在 BookMapper.xml 中添加

   <select id="queryBookByName" parameterType="String" resultType="com.mithrandir.pojo.Books">
       select * from ssm_book.books where bookName = #{bookName};
   select>
   

3. 同样的，service 层添加方法，很简单，此处略去

4. controller 层添加方法

   //查询书籍
   @RequestMapping("/queryBook")
   public String queryBook(String queryBookName,Model model){
          
       Books books = bookService.queryBookByName(queryBookName);
   
       if (books == null){
          
           List<Books> booksList = bookService.queryAllBook();
           model.addAttribute("list",booksList);
           model.addAttribute("error","未查到");
       } else {
          
           List<Books> list = new ArrayList<Books>();
           list.add(books);
           model.addAttribute("list",list);
       }
       return "allBook";
   }
   

5. 前端页面做对应更改，较为简单，此处略去

至此，开发完成