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SSM整合 - 简单项目功能实现

时间：2023-03-19 18:23:04浏览次数：28  
标签：int public SSM book books 整合 简单 Books 书籍

SSM整合练习

创建数据库

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');

Mybatis层

1、导入依赖
<!--依赖：Junit，数据库驱动，连接池，servlet，jsp，mybatis，mybatis-spring，spring-->
<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>8.0.32</version>
    </dependency>
    <!--连接池-->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.5</version>
    </dependency>


    <!--servlet -  jsp-->
    <!--servlet-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>
    <!--jsp-->
    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.2</version>
        <scope>provided</scope>
    </dependency>
    <!--jstl-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

    <!--mybatis-->
    <!--mybatis-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.13</version>
    </dependency>
    <!--mybatis-spring-->
    <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>5.3.25</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.3.25</version>
    </dependency>
    
     <!--lombok-->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.26</version>
    </dependency>
2、连接数据库
3、创建相关的包

4、创建基础配置文件

  • mybatis-config.xml（此中配置数据源交给Spring去做，别名和mappers文件后续增加）

    <?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "https://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
        https://www.springframework.org/schema/beans/spring-beans.xsd">

</beans>

5、关联数据库

创建database.properties

jdbc.driver=com.mysql.jdbc.Driver
# 如果使用的是MySQL8.0+版本，增加一个时区的配置; &serverTimezone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306?ssmbuild?useSSL=false&useUnicode&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
6、创建实体类
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {

    private int bookID;
    private String bookName;
    private int bookCount;
    private String detail;

}
7、创建接口BookMapper
public interface BookMapper {
    // 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();
}
8、创建接口映射文件BookMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="">
    
    <insert id="addBook" parameterType="books">
        insert into ssmbuild.books (bookName, bookCounts, detail)
        VALUES (#{bookName},#{bookCounts},#{detail});
    </insert>

    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookID = #{bookId}
    </delete>

    <update id="updateBook" parameterType="books">
        update ssmbuild.books
        set bookName = #{bookName},bookCounts = #{bookCounts},detail = #{detail}
        where bookID = #{bookID};
    </update>

    <select id="queryBookById" resultType="books">
        select * from ssmbuild.books where bookID = #{bookId}
    </select>

    <select id="queryAllBook" resultType="books">
        select * from ssmbuild.books
    </select>
    
</mapper>

写完SQL后要在mybatis-config.xml中绑定注册映射文件

<mappers>
    <mapper resource="com/kuang/dao/BookMapper.xml"/>
</mappers>
9、创建Service层接口
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();
}
10、创建Service层接口实现类
public class BookServiceImpl implements BookService{

    // service层 调dao层
    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();
    }
}

Spring层

1、创建整合dao层的spring配置文件
<?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
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">

    <!--1. 关联数据库配置文件-->
    <context:property-placeholder location="classpath:database.properties"/>

    <!--2.连接池
        dbcp:半自动化操作
        c3p0:自动化操作（自动化的加载配置文件，并且可以自动设置到对象中）
        druid:
        hikari:
    -->
    <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}"/>

        <!--c3p0连接池的私有属性-->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!--关闭连接手不自动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.sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--绑定mybatis的配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!--配置dao接口扫描包，动态实现了Dao接口可以注入到Spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--注入sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--要扫描的dao包-->
        <property name="basePackage" value="com.kuang.dao"/>
    </bean>
</beans>

2、创建整合service层的spring配置文件

<?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
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">

    <!--1.扫描service下的包-->
    <context:component-scan base-package="com.kuang.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.kuang.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>

    <!--3.声明式事物-->
    <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
          id="transactionManager">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--4.aop事物支持-->

</beans>

SpringMVC层

1、添加框架支持

点击后选中Web Application，OK

2、配置web.xml文件
<?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">

    <!--配置DispatcherServlet-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <!--绑定配置文件-->
        <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>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--乱码过滤-->
    <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-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>
3、新建springmvc配置文件
<?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
        https://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">

    <!--1.注解驱动-->
    <mvc:annotation-driven/>

    <!--2.静态资源过滤-->
    <mvc:default-servlet-handler/>

    <!--3.扫描包：controller-->
    <context:component-scan base-package="com.kuang.controller"/>

    <!--视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          id="internalResourceViewResolver">
        <!--前缀-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!--后缀-->
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>
4、在WEB-INF下建立匹配前缀的包

配置显示

1、查询全部书籍

1、创建Controller类配置展示书籍业务
@Controller
@RequestMapping("book")
public class BookController {
    // controller层 调 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> books = bookService.queryAllBook();
        model.addAttribute("list",books);

        return "allBook";
    }
}
2、首页配置跳转到展示页面业务
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页</title>

    <style>
      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: 10px;
      }
    </style>

  </head>
  <body>

  <h3>
    <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a>
  </h3>

  </body>
</html>
3、根据Controller类配置展示页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书籍展示页面</title>

    <%--BootStrap美化界面--%>
    <link href="https://cdn.staticfile.org/twitter-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">
            <h1>
                <small>书籍列表 ———— 显示所有书籍</small>
            </h1>
        </div>
    </div>

    <div class="row">
        <div class="col-md-4 column">
            <%--toAddBook--%>
            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍</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>书籍名称</th>
                        <th>书籍数量</th>
                        <th>书籍详情</th>
                    </tr>
                </thead>
                <%--书籍从数据库中查询出来，从这个list中遍历出来：foreach--%>
                <tbody>
                    <c:forEach var="book" items="${list}">
                        <tr>
                            <td>${book.bookID}</td>
                            <td>${book.bookName}</td>
                            <td>${book.bookCounts}</td>
                            <td>${book.detail}</td>
                        </tr>
                    </c:forEach>
                </tbody>
            </table>
        </div>
    </div>

</div>



</body>
</html>

2、添加书籍

1、配置Controller类增加跳转到添加页面业务
// 跳转到增加书籍页面
@RequestMapping("toAddBook")
public String toAddPaper(){
    return "addBook";
}
2、根据Controller类配置添加书籍页面
<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2023/3/17
  Time: 10:59
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加书籍</title>

  <%--BootStrap美化界面--%>
  <link href="https://cdn.staticfile.org/twitter-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">
      <h1>
        <small>新增书籍</small>
      </h1>
    </div>
  </div>

  <form action="${pageContext.request.contextPath}/book/addBook" method="get">
    <div class="form-group">
      <label>书籍名称：</label>
      <input type="text" name="bookName" class="form-control" required/>
    </div>
    <div class="form-group">
      <label>书籍数量：</label>
      <input type="text" name="bookCounts" class="form-control" required/>
    </div>
      <div class="form-group">
      <label>书籍描述：</label>
      <input type="text" name="detail" class="form-control" required/>
    </div>
    <div class="form-group">
      <input type="submit" class="form-control" value="添加">
    </div>
  </form>

</div>


</body>
</html>
3、配置Controller类增加添加书籍业务
//添加书籍的请求
@RequestMapping("addBook")
public String addBook(Books books){
    System.out.println("books");
    bookService.addBook(books);
    return "redirect:/book/allBook"; // 重定向到 @RequestMapping("allBook") 请求
}

3、修改书籍

1、配置Controller类增加跳转到修改页面业务
// 跳转到修改页面
@RequestMapping("toUpdate")
public String toUpdatePaper(int id,Model model){
    Books books = bookService.queryBookById(id);
    model.addAttribute("QBook",books);
    return "updateBook";
}
2、展示页配置相关操作
<c:forEach var="book" items="${list}">
    <tr>
        <td>${book.bookID}</td>
        <td>${book.bookName}</td>
        <td>${book.bookCounts}</td>
        <td>${book.detail}</td>
        <td>
            <a href="${pageContext.request.contextPath}/book/toUpdate?id=${book.bookID}">修改</a>
            &nbsp;|&nbsp;
            <a href="">删除</a>
        </td>
    </tr>
</c:forEach>
3、根据Controller类配置修改书籍页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改书籍</title>

  <%--BootStrap美化界面--%>
  <link href="https://cdn.staticfile.org/twitter-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">
      <h1>
        <small>修改书籍</small>
      </h1>
    </div>
  </div>

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

    <input type="hidden" name="bookID" value="${QBook.bookID}">

    <div class="form-group">
      <label>书籍名称：</label>
      <input type="text" name="bookName" class="form-control" value="${QBook.bookName}" required/>
    </div>
    <div class="form-group">
      <label>书籍数量：</label>
      <input type="text" name="bookCounts" class="form-control" value="${QBook.bookCounts}" required/>
    </div>
    <div class="form-group">
      <label>书籍描述：</label>
      <input type="text" name="detail" class="form-control" value="${QBook.detail}" required/>
    </div>
    <div class="form-group">
      <input type="submit" class="form-control" value="修改">
    </div>
  </form>

</div>

</body>
</html>
4、配置Controller类增加修改书籍业务
// 修改书籍
@RequestMapping("updateBook")
public String updateBook(Books books){
    System.out.println("updateBook=>" + books);
    bookService.updateBook(books);
    return "redirect:/book/allBook";
}

4、删除书籍

1、配置Controller类增加删除书籍功能（使用RestFul风格）
// 删除书籍
@RequestMapping("deleteBook/{bookId}")
public String deleteBook(@PathVariable("bookId") int id){
    bookService.deleteBookById(id);
    return "redirect:/book/allBook";
}
2、配置展示页相关操作
<c:forEach var="book" items="${list}">
    <tr>
        <td>${book.bookID}</td>
        <td>${book.bookName}</td>
        <td>${book.bookCounts}</td>
        <td>${book.detail}</td>
        <td>
            <a href="${pageContext.request.contextPath}/book/toUpdate?id=${book.bookID}">修改</a>
            &nbsp;|&nbsp;
            <a href="${pageContext.request.contextPath}/book/deleteBook?id=${book.bookID}">删除</a>
        </td>
    </tr>
</c:forEach>

标签：int,public,SSM,book,books,整合,简单,Books,书籍
From： https://www.cnblogs.com/jiaxing-java/p/17233849.html

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