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整合SSM（Spring + SpringMVC + Mybatis）

Anleyang 2024-07-02 12:01:03
简介整合SSM（Spring + SpringMVC + Mybatis）

7、整合SSM

7.1、环境要求

环境：

  • IDEA

  • MySQL 5.7.19

  • Tomcat 9

  • Maven 3.6

    要求：

  • 需要熟练掌握MySQL数据库，Spring，JavaWeb及MyBatis知识，简单的前端知识；

最简单的项目：

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步骤：

  1. 新建数据库，建表

  2. 新建Maven项目，添加web的支持

  3. 导入相关的pom依赖

  4. Maven资源过滤设置

  5. 建立基本结构和配置框架「建立包，创建两个xml文件」

    • com.kuang.pojo
    • com.kuang.dao
    • com.kuang.service
    • com.kuang.controller
    • mybatis-config.xml
    • applicationContext.xml

  6. Mybatis层编写

    1. 数据库配置文件 database.properties
    2. IDEA关联数据库
    3. 编写MyBatis的核心配置文件
    4. 编写数据库对应的实体类「使用lombok插件」
    5. 编写Dao层的 Mapper接口
    6. 编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包
    7. 编写Service层的接口和实现类

  7. 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
    3. Spring整合service层

  8. SpringMVC层

    1. web.xml
    2. spring-mvc.xml
    3. Spring配置整合文件，applicationContext.xml
    4. Controller 和 视图层编写
      1. BookController 类编写，方法一：查询全部书籍
      2. 编写首页 index.jsp
      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

  9. 配置Tomcat，运行

7.2、数据库环境

创建一个存放书籍数据的数据库表

CREATE DATABASE `ssmbuild`;
USE `ssmbuild`;
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');

7.3、基本环境搭建

  1. 新建Maven项目！ ssmbuild ， 添加web的支持

  2. 导入相关的pom依赖！

    <dependencies>
    <!--Junit-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>
    <!--数据库驱动-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.47</version>
    </dependency>
    <!-- 数据库连接池 -->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
    </dependency>
    <!--Servlet - JSP -->
    <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</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!--Mybatis-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.2</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.2</version>
    </dependency>
    <!--Spring-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.1.9.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.1.9.RELEASE</version>
    </dependency>
</dependencies>

  3. 在pom.xml，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. 建立基本结构和配置框架！

    • com.kuang.pojo

    • com.kuang.dao

    • com.kuang.service

    • com.kuang.controller

    • 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>

7.4、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/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456

  2. IDEA关联数据库

  3. 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>
    <typeAliases>
        <package name="com.kuang.pojo"/>
    </typeAliases>
    <mappers>
        <mapper resource="com/kuang/dao/BookMapper.xml"/>
    </mappers>
</configuration>

  4. 编写数据库对应的实体类 com.kuang.pojo.Books

    使用lombok插件！

    package com.kuang.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！

    package com.kuang.dao;
import com.kuang.pojo.Books;
import java.util.List;
public interface BookMapper {
    //增加一个Book
    int addBook(Books book);
    //根据id删除一个Book
    int deleteBookById(int id);
    //更新Book
    int updateBook(Books books);
    //根据id查询,返回一个Book
    Books queryBookById(int id);
    //查询全部Book,返回list集合
    List<Books> queryAllBook();
}

  6. 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 Mapper 3.0//EN"
        "<http://mybatis.org/dtd/mybatis-3-mapper.dtd>">
<mapper namespace="com.kuang.dao.BookMapper">
    <!--增加一个Book-->
    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books(bookName,bookCounts,detail)
        values (#{bookName}, #{bookCounts}, #{detail})
    </insert>
    <!--根据id删除一个Book-->
    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookID=#{bookID}
    </delete>
    <!--更新Book-->
    <update id="updateBook" parameterType="Books">
        update ssmbuild.books
        set bookName = #{bookName},bookCounts = #{bookCounts},detail = #{detail}
        where bookID = #{bookID}
    </update>
    <!--根据id查询,返回一个Book-->
    <select id="queryBookById" resultType="Books">
        select * from ssmbuild.books
        where bookID = #{bookID}
    </select>
    <!--查询全部Book-->
    <select id="queryAllBook" resultType="Books">
        SELECT * from ssmbuild.books
    </select>
</mapper>

  7. 编写Service层的接口和实现类

    接口：

    package com.kuang.service;
import com.kuang.pojo.Books;
import java.util.List;
//BookService:底下需要去实现,调用dao层
public interface BookService {
    //增加一个Book
    int addBook(Books book);
    //根据id删除一个Book
    int deleteBookById(int id);
    //更新Book
    int updateBook(Books books);
    //根据id查询,返回一个Book
    Books queryBookById(int id);
    //查询全部Book,返回list集合
    List<Books> queryAllBook();
}

    实现类：

    package com.kuang.service;
import com.kuang.dao.BookMapper;
import com.kuang.pojo.Books;
import java.util.List;
public class BookServiceImpl implements BookService {
    //调用dao层的操作，设置一个set接口，方便Spring管理
    private BookMapper bookMapper;
    public void setBookMapper(BookMapper bookMapper) {
        this.bookMapper = bookMapper;
    }
    public int addBook(Books book) {
        return bookMapper.addBook(book);
    }
    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();
    }
}

OK，到此，底层需求操作编写完毕！

7.5、Spring层

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

  2. 我们去编写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>">
    <!-- 配置整合mybatis -->
    <!-- 1.关联数据库文件 -->
    <context:property-placeholder location="classpath:database.properties"/>
    <!-- 2.数据库连接池 -->
    <!--数据库连接池
        dbcp  半自动化操作  不能自动连接
        c3p0  自动化操作（自动的加载配置文件 并且设置到对象里面）
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置连接池属性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!-- c3p0连接池的私有属性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 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>
    <!-- 3.配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>
    <!-- 4.配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 -->
    <!--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.kuang.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>">
    <!-- 扫描service相关的bean -->
    <context:component-scan base-package="com.kuang.service" />
    <!--BookServiceImpl注入到IOC容器中-->
    <bean id="BookServiceImpl" class="com.kuang.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>

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

7.6、SpringMVC层

  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">
    <!--DispatcherServlet-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!--一定要注意:我们这里加载的是总的配置文件，之前被这里坑了！-->   
            <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过期时间-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

  2. spring-mvc.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>"
       xmlns:mvc="<http://www.springframework.org/schema/mvc>"
       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>
    <http://www.springframework.org/schema/mvc>
    <https://www.springframework.org/schema/mvc/spring-mvc.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.kuang.controller" />
</beans>

  3. Spring配置整合文件，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>">
    <import resource="spring-dao.xml"/>
    <import resource="spring-service.xml"/>
    <import resource="spring-mvc.xml"/>
</beans>

配置文件，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 {
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;
    @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">
    <!-- 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">
    <!-- 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>

  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">
    <!-- 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="${pageContext.request.contextPath}/book/updateBook" method="post">
        <input type="hidden" name="bookID" value="${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";
}

配置Tomcat，进行运行！

到目前为止，这个SSM项目整合已经完全的OK了，可以直接运行进行测试！这个练习十分的重要，大家需要保证，不看任何东西，自己也可以完整的实现出来！

项目结构图

img

7.7、小结及展望

SSM框架的重要程度是不言而喻的，学到这里，大家已经可以进行基本网站的单独开发。但是这只是增删改查的基本操作。

我们后面还要学习一些 SpringMVC 的知识！

  • Ajax 和 Json
  • 文件上传和下载
  • 拦截器

SpringBoot、SpringCloud开发！

参考笔记：
狂神SSM：https://www.kuangstudy.com/zl/ssm#1381883242696683521

风语者！平时喜欢研究各种技术，目前在从事后端开发工作，热爱生活、热爱工作。

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