首页 > 编程学习 > SSM整合

SSM整合

发布时间:2022/9/3 3:18:11

SSM整合

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;

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');

基本环境搭建

  1. 新建一Maven项目!ssmbuild , 添加web的支持

  2. 导入相关的pom依赖!

            <!--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>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>8.0.26</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>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>1.18.20</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.9.4</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. 建立基本结构和配置框架!

    • com.xiao.pojo
    • com.xiao.dao
    • com.xiao.service
    • com.xiao.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>
      

      Mybatis层

      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.xiao.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.xiao.dao;
        
        import com.xiao.pojo.Books;
        import org.apache.ibatis.annotations.Param;
        
        import java.util.List;
        
        public interface IBooksMapper {
        
            //增加一个Book
            int addBooks(Books book);
        
            //根据id删除一个Book
            int deleteBooksById(int id);
        
            //更新Book
            int updateBooks(Books books);
        
            //根据id查询,返回一个Book
            Books queryBooksById(int id);
        
            //查询全部Book,返回list集合
            List<Books> queryAllBooks();
        
            // 模糊查询根据名字
            List<Books> queryBooksByName(@Param("value") String name);
        }
        
      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.xiao.dao.IBooksMapper">
        
            <!--增加一个Book-->
            <insert id="addBooks" parameterType="Books">
                insert into ssmbuild.books(bookName, bookCounts, detail)
                values (#{bookName}, #{bookCounts}, #{detail})
            </insert>
        
            <!--根据id删除一个Book-->
            <delete id="deleteBooksById" parameterType="int">
                delete
                from ssmbuild.books
                where bookID = #{bookID}
            </delete>
        
            <!--更新Book-->
            <update id="updateBooks" 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="queryBooksById" resultType="Books">
                select *
                from ssmbuild.books
                where bookID = #{bookID}
            </select>
        
            <!--查询全部Book-->
            <select id="queryAllBooks" resultType="Books">
                SELECT *
                from ssmbuild.books
            </select>
        
            <!--模糊查询根据name-->
            <select id="queryBooksByName" parameterType="string" resultType="Books">
                select *
                from books
                where bookName like '%${value}%';
            </select>
        </mapper>
        
      7. 编写Service层的接口和实现类

        接口:

        package com.xiao.service;
        
        import com.xiao.pojo.Books;
        import org.apache.ibatis.annotations.Param;
        
        import java.util.List;
        
        public interface IBooksService {
        
            //增加一个Book
            int addBooks(Books book);
        
            //根据id删除一个Book
            int deleteBooksById(int id);
        
            //更新Book
            int updateBooks(Books books);
        
            //根据id查询,返回一个Book
            Books queryBooksById(int id);
        
            //查询全部Book,返回list集合
            List<Books> queryAllBooks();
            
            // 模糊查询根据名字
            List<Books> queryBooksByName(@Param("value") String bookName);
        
        }
        
      8. 实现类:

        package com.xiao.service;
        
        import com.xiao.dao.IBooksMapper;
        import com.xiao.pojo.Books;
        import org.springframework.beans.factory.annotation.Autowired;
        import org.springframework.beans.factory.annotation.Qualifier;
        import org.springframework.stereotype.Service;
        
        import java.util.List;
        
        @Service
        public class BooksServiceImpl implements IBooksService {
        
            //调用dao层的操作,设置一个set接口,方便Spring管理
            private IBooksMapper booksMapper;
            @Autowired
            @Qualifier("IBooksMapper")
            public void setBooksMapper(IBooksMapper booksMapper) {
                this.booksMapper = booksMapper;
            }
        
            @Override
            public int addBooks(Books book) {
                return booksMapper.addBooks(book);
            }
        
            @Override
            public int deleteBooksById(int id) {
                return booksMapper.deleteBooksById(id);
            }
        
            @Override
            public int updateBooks(Books books) {
                return booksMapper.updateBooks(books);
            }
        
            @Override
            public Books queryBooksById(int id) {
                return booksMapper.queryBooksById(id);
            }
        
            @Override
            public List<Books> queryAllBooks() {
                return booksMapper.queryAllBooks();
            }
        
            @Override
            public List<Books> queryBooksByName(String name) {
                return booksMapper.queryBooksByName(name);
            }
        }
        
        

      OK,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. 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">
        
        
            <!--1.数据库连接池使用:c3p0 扫描database.properties配置文件-->
            <context:property-placeholder location="classpath:database.properties"/>
        
            <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>
        
        
            <!--2.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Mybatis全局配置文件:mybatis-config.xml -->
                <property name="configLocation" value="classpath:mybatis-config.xml"/>
            </bean>
        
        
            <!--3.配置扫描Dao接口包,动态实现Dao接口注入到spring容器中-->
            <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
                <!-- 给出需要扫描Dao接口包 -->
                <property name="basePackage" value="com.xiao.dao"/>
                <!-- 注入 sqlSessionFactory -->
                <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
            </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相关的bean -->
            <context:component-scan base-package="com.xiao.service"/>
        
            <!--配置事务管理器-->
            <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
                <!-- 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!

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">
        <!--DispatchServlet前端控制器-->
        <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>
    
        <!--乱码过滤器-->
        <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">
    
        <!-- 1.开启SpringMVC注解驱动 -->
        <mvc:annotation-driven/>
    
        <!--2.过滤静态资源-->
        <mvc:default-servlet-handler/>
    
        <!--3.配置视图解析器-->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="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.xiao.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="springmvc-controller.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

    package com.xiao.controller;
    
    import com.xiao.pojo.Books;
    import com.xiao.service.BooksServiceImpl;
    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.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    @Controller
    @RequestMapping("/book")
    public class BookController {
        @Autowired
        @Qualifier("booksServiceImpl")
        private BooksServiceImpl booksService;
    
    
        // 查询全部书籍
        @RequestMapping("/queryAllBook")
        public String queryAllBook(Model model) {
            List<Books> books = booksService.queryAllBooks();
            model.addAttribute("list", books);
            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="${pageContext.request.contextPath}/book/addBookPage">新增</a>
            </div>
        </div>
        <div class="row clearfix">
            <div class="col-md-12 column">
                <table class="table table-hover table-striped">
                    <thead>
                    <tr>
                        <th>书籍编号</th>
                        <th>书籍名字</th>
                        <th>书籍数量</th>
                        <th>书籍详情</th>
                        <th>操作</th>
                    </tr>
                    </thead>
                    <tbody>
                    <c:forEach var="book" items="${requestScope.get('list')}">
                        <tr>
                            <td>${book.getBookID()}</td>
                            <td>${book.getBookName()}</td>
                            <td>${book.getBookCounts()}</td>
                            <td>${book.getDetail()}</td>
                            <td>
                                <a href="${pageContext.request.contextPath}/book/updateBookPage?id=${book.getBookID()}">更改</a> |
                                <a href="${pageContext.request.contextPath}/book/deleteBook/${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

    package com.xiao.controller;
    
    import com.xiao.pojo.Books;
    import com.xiao.service.BooksServiceImpl;
    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.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    @Controller
    @RequestMapping("/book")
    public class BookController {
        @Autowired
        @Qualifier("booksServiceImpl")
        private BooksServiceImpl booksService;
    
    
        // 查询全部书籍
        @RequestMapping("/queryAllBook")
        public String queryAllBook(Model model) {
            List<Books> books = booksService.queryAllBooks();
            model.addAttribute("list", books);
            return "allBook";
        }
    
    
        // 跳转添加页面
        @RequestMapping("/addBookPage")
        public String addBookPage() {
            return "addBook";
        }
    
        // 添加一本书籍
        @RequestMapping("/addBook")
        public String addBook(Books books) {
            booksService.addBooks(books);
            // 添加完返回主页
            return "redirect:/book/queryAllBook";
        }
    }
    
    
  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

    package com.xiao.controller;
    
    import com.xiao.pojo.Books;
    import com.xiao.service.BooksServiceImpl;
    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.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    @Controller
    @RequestMapping("/book")
    public class BookController {
        @Autowired
        @Qualifier("booksServiceImpl")
        private BooksServiceImpl booksService;
    
    
        // 查询全部书籍
        @RequestMapping("/queryAllBook")
        public String queryAllBook(Model model) {
            List<Books> books = booksService.queryAllBooks();
            model.addAttribute("list", books);
            return "allBook";
        }
    
    
        // 跳转添加页面
        @RequestMapping("/addBookPage")
        public String addBookPage() {
            return "addBook";
        }
    
        // 添加一本书籍
        @RequestMapping("/addBook")
        public String addBook(Books books) {
            booksService.addBooks(books);
            // 添加完返回主页
            return "redirect:/book/queryAllBook";
        }
    
    
        // 跳转修改页面 使用RestFul风格
        @RequestMapping("/updateBookPage/{id}")
        public String updateBookPage(@PathVariable int id, Model model){
            // 回填修改页面
            Books books = booksService.queryBooksById(id);
            model.addAttribute("QBooks",books);
            return "updateBook";
        }
    
        // 修改书籍
        @RequestMapping("/updateBook")
        public String updateBook(Books books){
            booksService.updateBooks(books);
            return "redirect:/book/queryAllBook";
        }
    }
    
    
  7. 修改书籍页面 updateBook.jsp

    <%--
      Created by IntelliJ IDEA.
      User: ylp
      Date: 2022/5/26
      Time: 17:01
      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>
        <title>书籍列表</title>
        <!-- 新 Bootstrap 核心 CSS 文件 -->
    
        <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    
        <!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
    
        <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
    
        <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    
        <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
    </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 —— 修改书籍</small>
                    </h1>
                </div>
            </div>
        </div>
    
        <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
            <input type="hidden" name="bookID" value="${QBooks.bookID}">
            书籍名称:<input type="text" name="bookName" value="${QBooks.bookName}" required><br><br><br>
            书籍数量:<input type="text" name="bookCounts" value="${QBooks.bookCounts}" required><br><br><br>
            书籍详情:<input type="text" name="detail" value="${QBooks.detail}" required><br><br><br>
            <input type="submit" value="修改">
        </form>
    </div>
    </body>
    </html>
    
  8. BookController 类编写 , 方法四:删除书籍

    package com.xiao.controller;
    
    import com.xiao.pojo.Books;
    import com.xiao.service.BooksServiceImpl;
    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.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    @Controller
    @RequestMapping("/book")
    public class BookController {
        @Autowired
        @Qualifier("booksServiceImpl")
        private BooksServiceImpl booksService;
    
    
        // 查询全部书籍
        @RequestMapping("/queryAllBook")
        public String queryAllBook(Model model) {
            List<Books> books = booksService.queryAllBooks();
            model.addAttribute("list", books);
            return "allBook";
        }
    
    
        // 跳转添加页面
        @RequestMapping("/addBookPage")
        public String addBookPage() {
            return "addBook";
        }
    
        // 添加一本书籍
        @RequestMapping("/addBook")
        public String addBook(Books books) {
            booksService.addBooks(books);
            // 添加完返回主页
            return "redirect:/book/queryAllBook";
        }
    
    
        // 跳转修改页面 使用RestFul风格
        @RequestMapping("/updateBookPage/{id}")
        public String updateBookPage(@PathVariable int id, Model model){
            // 回填修改页面
            Books books = booksService.queryBooksById(id);
            model.addAttribute("QBooks",books);
            return "updateBook";
        }
    
        // 修改书籍
        @RequestMapping("/updateBook")
        public String updateBook(Books books){
            booksService.updateBooks(books);
            return "redirect:/book/queryAllBook";
        }
    
    
        // 删除书籍
        @RequestMapping("/deleteBook/{id}")
        public String deleteBook(@PathVariable int id){
            booksService.deleteBooksById(id);
            return "redirect:/book/queryAllBook";
        }
    }
    
    
  9. BookController类编写,方法五:模糊查询

    package com.xiao.controller;
    
    import com.xiao.pojo.Books;
    import com.xiao.service.BooksServiceImpl;
    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.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import java.util.List;
    
    @Controller
    @RequestMapping("/book")
    public class BookController {
        @Autowired
        @Qualifier("booksServiceImpl")
        private BooksServiceImpl booksService;
    
    
        // 查询全部书籍
        @RequestMapping("/queryAllBook")
        public String queryAllBook(Model model) {
            List<Books> books = booksService.queryAllBooks();
            model.addAttribute("list", books);
            return "allBook";
        }
    
    
        // 跳转添加页面
        @RequestMapping("/addBookPage")
        public String addBookPage() {
            return "addBook";
        }
    
        // 添加一本书籍
        @RequestMapping("/addBook")
        public String addBook(Books books) {
            booksService.addBooks(books);
            // 添加完返回主页
            return "redirect:/book/queryAllBook";
        }
    
    
        // 跳转修改页面 使用RestFul风格
        @RequestMapping("/updateBookPage/{id}")
        public String updateBookPage(@PathVariable int id, Model model){
            // 回填修改页面
            Books books = booksService.queryBooksById(id);
            model.addAttribute("QBooks",books);
            return "updateBook";
        }
    
        // 修改书籍
        @RequestMapping("/updateBook")
        public String updateBook(Books books){
            booksService.updateBooks(books);
            return "redirect:/book/queryAllBook";
        }
    
    
        // 删除书籍
        @RequestMapping("/deleteBook/{id}")
        public String deleteBook(@PathVariable int id){
            booksService.deleteBooksById(id);
            return "redirect:/book/queryAllBook";
        }
    
    
        // 根据名字查询书籍
        @RequestMapping("/queryBookByName")
        public String queryBookByName(String queryBookName,Model model){
            List<Books> books = booksService.queryBooksByName(queryBookName);
            if (books.size()==0){
                books = booksService.queryAllBooks();
                model.addAttribute("error","未查到");
            }
            System.err.println(books);
            model.addAttribute("list",books);
            // 这里注意点 不要返回queryAllBook这个方法里面 因为到了里面会重新赋值 直接返回allBook页面即可
            return "allBook";
        }
    }
    
    
  10. 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

image

Copyright © 2010-2022 mfbz.cn 版权所有 |关于我们| 联系方式|豫ICP备15888888号