SpringMVC学习（七）——整合ssm(图书管理)

女爷i 2023-01-11 09:06 19阅读 0赞

### 整合ssm ###

*  环境要求
 *  数据库设计
 *  基本环境搭建
 *   *  1、新建一Maven项目！BookControl ， 添加web的支持
     *  2、导入相关的pom依赖！
     *  3、Maven资源过滤设置
     *  4、连接数据库
     *  5、建立基本结构和配置框架
 *  Mybatis层编写
 *   *  1、数据库配置文件 database.properties
     *  2、编写数据库对应的实体类 com.kuang.pojo.Books
     *  3、编写Dao层的 Mapper接口
     *  4、编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包；
     *  5、编写MyBatis的核心配置文件
     *  6、编写Service层的接口和实现类
 *  Spring层整合
 *   *  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
     *  3、Spring整合service层
 *  SpringMVC层配置
 *   *  1、web.xml
     *  2、spring-mvc.xml
 *  Controller 和 视图层编写
 *   *  1、BookController 类编写 ， 方法一：查询全部书籍
     *  3、书籍列表页面 allbook.jsp
     *  4、BookController 类编写 ， 方法二：添加书籍
     *  5、添加书籍页面：addBook.jsp
     *  6、BookController 类编写 ， 方法三：修改书籍
     *  7、修改书籍页面 updateBook.jsp
     *  8、BookController 类编写 ， 方法四：删除书籍

# 环境要求 #

环境：  
IDEA  
MySQL 5.7  
Tomcat 8  
Maven 3.6  
![在这里插入图片描述][20210126145357602.png]

# 数据库设计 #

CREATE DATABASE `BookControl`;
    USE `BookControl`;
    DROP TABLE IF EXISTS `books`;
    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Maven项目！BookControl ， 添加web的支持 ##

![在这里插入图片描述][20210126150945999.png]

## 2、导入相关的pom依赖！ ##

<dependencies>
            
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.13</version>
            </dependency>
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.49</version>
            </dependency>
            
            <dependency>
                <groupId>com.mchange</groupId>
                <artifactId>c3p0</artifactId>
                <version>0.9.5.2</version>
            </dependency>
    
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>2.5</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet.jsp</groupId>
                <artifactId>jsp-api</artifactId>
                <version>2.2.1-b03</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.5.3</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>2.0.3</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>5.2.9.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>5.2.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>1.18.12</version>
            </dependency>
        </dependencies>

## 3、Maven资源过滤设置 ##

<build>
       <resources>
           <resource>
               <directory>src/main/java</directory>
               <includes>
                   <include>**/*.properties</include>
                   <include>**/*.xml</include>
               </includes>
               <filtering>false</filtering>
           </resource>
           <resource>
               <directory>src/main/resources</directory>
               <includes>
                   <include>**/*.properties</include>
                   <include>**/*.xml</include>
               </includes>
               <filtering>false</filtering>
           </resource>
       </resources>
    </build>

## 4、连接数据库 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoYXJfbQ_size_16_color_FFFFFF_t_70]

## 5、建立基本结构和配置框架 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoYXJfbQ_size_16_color_FFFFFF_t_70 1]

*  mybatis-config.xml

<?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>
    
    </configuration>

*  applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
    <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.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/bookcontrol?useSSL=true&useUnicode=true&characterEncoding=utf8
    jdbc.username=root
    jdbc.password=123456

## 2、编写数据库对应的实体类 com.kuang.pojo.Books ##

package com.my.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;
    }

## 3、编写Dao层的 Mapper接口 ##

package com.my.dao;
    
    import com.my.pojo.Books;
    import org.apache.ibatis.annotations.Param;
    
    import java.util.List;
    
    public interface BookMapper {
        
        //增加一本书
        int addBook(Books books);
        //删除一本书
        int deleteBookById(@Param("bookId") int id);
        //修改一本书
        int updateBook(Books books);
        //查询一本书
        Books queryBookById(@Param("bookId") int id);
        //查询所有书
        List<Books> queryAllBook();
    }

## 4、编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包； ##

<?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.my.dao.BookMapper">
    
        <insert id="addBook" parameterType="Books">
            insert into bookcontrol.books (bookName,bookCounts,detail)
            values (#{bookName},#{bookCounts},#{datail});
        </insert>
    
        <delete id="deleteBookById" parameterType="int">
            delete from bookcontrol.books where bookID = #{bookId};
        </delete>
    
        <update id="updateBook" parameterType="Books">
            update bookcontrol.books set
            bookName = #{bookName},bookCounts =#{bookCounts},detail = #{detail}
            where bookID = #{bookID};
        </update>
    
        <select id="queryBookById" parameterType="Books">
           select * from bookcontrol.books where bookID = #{bookId};
        </select>
    
        <select id="queryAllBook" parameterType="Books">
            select * from bookcontrol.books ;
        </select>
    
    </mapper>

## 5、编写MyBatis的核心配置文件 ##

<?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>
    
        
        
        <settings>
            <setting name="logImpl" value="STDOUT_LOGGING"/>
        </settings>
    
        
        <typeAliases>
            <package name="com.my.pojo"/>
        </typeAliases>
    
        
        <mappers>
            <mapper class="com.my.dao.BookMapper"/>
        </mappers>
    
    </configuration>

## 6、编写Service层的接口和实现类 ##

package com.my.service;
    
    import com.my.pojo.Books;
    
    import java.util.List;
    
    public interface BookService {
        
        //增加一本书
        int addBook(Books books);
        //删除一本书
        int deleteBookById(int id);
        //修改一本书
        int updateBook(Books books);
        //查询一本书
        Books queryBookById( int id);
        //查询所有书
        List<Books> queryAllBook();
    }

package com.my.service;
    
    import com.my.dao.BookMapper;
    import com.my.pojo.Books;
    
    import java.util.List;
    
    
    public class BookServiceImpl implements BookService {
        
    
        //业务层调用DAO层
        private BookMapper bookMapper;
    
        public void setBookMapper(BookMapper bookMapper) {
        
            this.bookMapper = bookMapper;
        }
    
        public int addBook(Books books) {
        
            return bookMapper.addBook(books);
        }
    
        public int deleteBookById(int id) {
        
            return bookMapper.deleteBookById(id);
        }
    
        public int updateBook(Books books) {
        
            return bookMapper.updateBook(books);
        }
    
        public Books queryBookById(int id) {
        
            return bookMapper.queryBookById(id);
        }
    
        public List<Books> queryAllBook() {
        
            return bookMapper.queryAllBook();
        }
    }

# Spring层整合 #

## 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 ##

<?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
           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.my.dao"/>
        </bean>
    
    </beans>

## 3、Spring整合service层 ##

# SpringMVC层配置 #

## 1、web.xml ##

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

## 2、spring-mvc.xml ##

# Controller 和 视图层编写 #

## 1、BookController 类编写 ， 方法一：查询全部书籍 ##

package com.my.controller;
    
    import com.my.pojo.Books;
    import com.my.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.RequestMapping;
    
    import java.util.List;
    
    @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，并且返回到一个书籍展示页面
        @RequestMapping("/allBook")
        public String List(Model model){
        
            List<Books> list = bookService.queryAllBook();
            model.addAttribute("list",list);
            return "allBook";
        }
    
    }

2、编写首页 index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
    <!DOCTYPE HTML>
    <html>
    <head>
       <title>首页</title>
       <style type="text/css">
           a {
         
               text-decoration: none;
               color: black;
               font-size: 18px;
          }
           h3 {
         
               width: 180px;
               height: 38px;
               margin: 100px auto;
               text-align: center;
               line-height: 38px;
               background: deepskyblue;
               border-radius: 4px;
          }
       </style>
    </head>
    <body>
    
    <h3>
       <a href="${pageContext.request.contextPath}/book/allBook">点击进入列表页</a>
    </h3>
    </body>
    </html>

## 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" %>
    <html>
    <head>
        <title>书籍列表</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        
        <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>书籍名字</th>
                        <th>书籍数量</th>
                        <th>书籍详情</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/toUpdateBook?id=${book.getBookID()}">更改</a> |
                                <a href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">删除</a>
                            </td>
                        </tr>
                    </c:forEach>
                    </tbody>
                </table>
            </div>
        </div>
    </div>

## 4、BookController 类编写 ， 方法二：添加书籍 ##

@RequestMapping("/toAddBook")
    public String toAddPaper() {
        
       return "addBook";
    }
    
    @RequestMapping("/addBook")
    public String addPaper(Books books) {
        
       System.out.println(books);
       bookService.addBook(books);
       return "redirect:/book/allBook";
    }

## 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" %>
    
    <html>
    <head>
       <title>新增书籍</title>
       <meta name="viewport" content="width=device-width, initial-scale=1.0">
       
       <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>

## 6、BookController 类编写 ， 方法三：修改书籍 ##

@RequestMapping("/toUpdateBook")
    public String toUpdateBook(Model model, int id) {
        
       Books books = bookService.queryBookById(id);
       System.out.println(books);
       model.addAttribute("book",books );
       return "updateBook";
    }
    
    @RequestMapping("/updateBook")
    public String updateBook(Model model, Books book) {
        
       System.out.println(book);
       bookService.updateBook(book);
       Books books = bookService.queryBookById(book.getBookID());
       model.addAttribute("books", books);
       return "redirect:/book/allBook";
    }

## 7、修改书籍页面 updateBook.jsp ##

<%@ 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">
       
       <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="${pageContext.request.contextPath}/book/updateBook" method="post">
           <input type="hidden" name="bookID" value="${book.getBookID()}"/>
          书籍名称：<input type="text" name="bookName" value="${book.getBookName()}"/>
          书籍数量：<input type="text" name="bookCounts" value="${book.getBookCounts()}"/>
          书籍详情：<input type="text" name="detail" value="${book.getDetail() }"/>
           <input type="submit" value="提交"/>
       </form>
    
    </div>

## 8、BookController 类编写 ， 方法四：删除书籍 ##

@RequestMapping("/del/{bookId}")
    public String deleteBook(@PathVariable("bookId") int id) {
        
       bookService.deleteBookById(id);
       return "redirect:/book/allBook";
    }

[20210126145357602.png]: /images/20221119/a7c4f041759f4b5f8ee27e493e518229.png
[20210126150945999.png]: /images/20221119/a385929351f446a290d971159a191388.png
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