6、ssm整合（干货）

1、数据库用表：

CREATE DATABASE ssmbuild;
USE ssmbuild;
CREATE TABLE `books`(
`bookID` INT NOT NULL AUTO_INCREMENT COMMENT '书id',
`bookName` VARCHAR(100) NOT NULL COMMENT '书名',
`bookCounts` INT 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')

2、新建一个maven项目，添加web支持

3、添加pom依赖

<dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <!--servlet依赖-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
        </dependency>
        <!--jsp依赖-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
        </dependency>
        <!--mysql-jdbc依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.48</version>
        </dependency>
        <!--JSTL表达式依赖-->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl-api</artifactId>
            <version>1.2</version>
        </dependency>
        <!--standard标签库依赖-->
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <!--mybatis依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <!--自动生成set/get等方法的注解-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
        </dependency>
        <!--spring依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.12.RELEASE</version>
        </dependency>
        <!--springAOP的包-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
        </dependency>
        <!--ssm整合jdbc依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.12.RELEASE</version>
        </dependency>
        <!--mybatis整合依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.5</version>
        </dependency>
        <!--JSON转换-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.10.2</version>
        </dependency>
        <!--c3po数据库连接池-->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

        <!--阿里巴巴的JSON格式转换-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.75</version>
        </dependency>
    </dependencies>

4、maven资源过滤（资源导出问题）

<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>

5、使用idea测试连接数据库

 6、建立基本结构包

1. com/zhixi/pojo -->编写跟数据库对应的实体类
2. com/zhixi/dao -->数据库持久化层，数据访问对象。他只负责对数据进行访问
3. com/zhixi/service -->业务逻辑都会放在这里处理，比如用户的增删改查
4. com/zhixi/controller -->负责请求转发，接受页面过来的参数，传给Service处理，接到返回值，再传给页面

============================================================================================

7、pojo实体类

package com.zhixi.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

/**
 * @author zhangzhixi
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Books {
    private Integer bookID;
    private String bookName;
    private Integer bookCounts;
    private String detail;
}

8、dao层

package com.zhixi.dao;

import com.zhixi.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

/**
 * @author zhangzhixi
 */
public interface BooksMapper {
    // 增加一本书
    int addBook(Books book);

    // 删除一本书
    int delBook(@Param("bookId") int id);

    // 查询一本书
    Books queryBookById(int id);

    // 更新一本书
    int updateBook(Books book);

    // 查询所有的书
    List<Books> queryBooks();

    // 根据书名查询书籍
    Books queryBookByName(@Param("bookName") String bookName);
}

9、service层：与dao层业务方法保持一致

　　service层接口：

package com.zhixi.service;

import com.zhixi.pojo.Books;
import org.apache.ibatis.annotations.Param;

import java.util.List;

/**
 * @author zhangzhixi
 */
public interface BooksService {
    // 增加一本书
    int addBook(Books book);

    // 删除一本书
    int delBook(int id);

    // 查询一本书
    Books queryBookById(int id);

    // 更新一本书
    int updateBook(Books book);

    // 查询所有的书
    List<Books> queryBooks();

    // 根据书名查询书籍
    Books queryBookByName(String bookName);
}

　　service层接口实现类：service调dao层（含有dao层接口对象的引用）

package com.zhixi.service;

import com.zhixi.dao.BooksMapper;
import com.zhixi.pojo.Books;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

@Service
public class BooksServiceImpl implements BooksService {
    // 业务层service调dao层
    private BooksMapper booksMapper;

    public void setBooksMapper(BooksMapper booksMapper) {
        this.booksMapper = booksMapper;
    }

    public int addBook(Books book) {
        return booksMapper.addBook(book);
    }

    public int delBook(int id) {
        return booksMapper.delBook(id);
    }

    public Books queryBookById(int id) {
        return booksMapper.queryBookById(id);
    }

    public int updateBook(Books book) {
        return booksMapper.updateBook(book);
    }

    public List<Books> queryBooks() {
        return booksMapper.queryBooks();
    }

    public Books queryBookByName(String bookName) {
        return booksMapper.queryBookByName(bookName);
    }
}

☆：Controller层：

package com.zhixi.controller;

import com.zhixi.pojo.Books;
import com.zhixi.service.BooksService;
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 org.springframework.web.bind.annotation.RequestParam;

import java.util.ArrayList;
import java.util.List;

/**
 * @author zhangzhixi
 */
@Controller
@RequestMapping("/books")
public class BookController {

    // controller调service层
    @Autowired
    @Qualifier("booksService")
    private BooksService booksService;

    // 1、查询全部的书籍，并跳转到书籍展示页面
    @RequestMapping("/allBook")
    public String queryBooks(Model model) {
        List<Books> list = booksService.queryBooks();

        model.addAttribute("list", list);
        return "queryAllBookPage";
    }

    // 2、添加书籍页面
    @RequestMapping("/toBookPage")
    public String toBookPage() {
        return "addBookPage";
    }

    // 2.1、添加书籍
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        // 添加书籍
        booksService.addBook(books);
        // 跳转到查询全部书籍的页面【使用重定向】
        return "redirect:/books/allBook";
    }

    // 3、修改书籍页面
    @RequestMapping("/updateBookPage")
    // 这个id是从jsp页面拿到的，可以知道是对哪个用户进行修改数据
    public String updateBook(int id, Model model) {
        Books books = booksService.queryBookById(id);
        model.addAttribute("QUpdate", books);
        return "updateBookPage";
    }

    // 3.1、修改书籍
    @RequestMapping("/toUpdate")
    public String toUpdate(Books books) {
        booksService.updateBook(books);
        // 返回书籍首页
        return "redirect:/books/allBook";
    }

    // 4、删除书籍,删除完成后跳转到书籍首页
    @RequestMapping("/delBook")
    public String delBook(int id) {
        booksService.delBook(id);
        return "redirect:/books/allBook";
    }


    // 5、根据id查找书籍
    @RequestMapping("/queryById")
    // RequestParam是为了设置前端过来的请求与参数名不一致的情况
    public String queryBookById(@RequestParam("bookById") int id, Model model) {
        List<Books> list = new ArrayList<Books>();
        // 根据id查询
        Books books = booksService.queryBookById(id);
        list.add(books);

        if (books == null) {// 没有查询到书籍，就回到书籍首页并显示错误信息
            list = booksService.queryBooks();
            model.addAttribute("errorById", "没有查询到书籍！");
        }

        model.addAttribute("list", list);
        return "queryAllBookPage";
    }

    // 6、根据书名查找书籍
    @RequestMapping("/queryByName")
    public String queryBookByName(@RequestParam("bookName") String bookName, Model model) {
        List<Books> list = new ArrayList<Books>();
        Books books = booksService.queryBookByName(bookName);
        list.add(books);

        if (books == null) { // 没有查询到书籍，就回到书籍首页并显示错误信息
            list = booksService.queryBooks();
            model.addAttribute("errorByName", "没有查询到书籍！");
        }

        model.addAttribute("list", list);
        return "queryAllBookPage";
    }
}

10、mybatis-config.xml ：mybatis配置文件

　　因为是整合项目，都交给spring做了，所以mybatis中几乎都保留很少的功能，比如日志，给实体类起别名等设置

<?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>

    <!--日志-->
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>

    <!--设置实体类别名-->
    <typeAliases>
        <package name="com.zhixi.pojo"/>
    </typeAliases>
</configuration>

11、resources/mapper/BooksMapper.xml :dao层的映射文件-->做mybatis的CRUD

　　dao层接口的映射文件，主要是做CRUD操作

<?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.zhixi.dao.BooksMapper">

    <!--添加书籍-->
    <insert id="addBook" parameterType="books">
        insert into ssmbuild.books (bookName, bookCounts, detail)
        values (#{bookName}, #{bookCounts}, #{detail})
    </insert>

    <!--根据id删除书籍-->
    <delete id="delBook" parameterType="int">
        delete
        from ssmbuild.books
        where bookID = #{bookId}
    </delete>

    <!--修改书籍-->
    <update id="updateBook" parameterType="books">
        update ssmbuild.books
        set bookName=#{bookName},
            bookCounts=#{bookCounts},
            detail = #{detail}
            /*这里的bookID需要指定，是因为要与修改的jsp给id起的name保持一致*/
        where bookID = #{bookID}
    </update>

    <!--查询所有书籍-->
    <select id="queryBooks" resultType="books">
        select *
        from ssmbuild.books;
    </select>

    <!--根据id查询书籍-->
    <select id="queryBookById" resultType="books" parameterType="int">
        select *
        from ssmbuild.books
        where bookID = #{bookById};
    </select>

    <!--根据名字查询书籍-->
    <select id="queryBookByName" parameterType="java.lang.String" resultType="books">
        select * from ssmbuild.books where bookName = #{bookName}
    </select>
</mapper>

12、spring-dao.xml：主要跟数据连接打交道

　　jdbc.properties:数据连接池的基本配置文件：

　　　　需要注意的是如果是mysql8以上的版本需要在后面加上时区serverTimezone=UTC

　　　　因为中国时区比美国早八个小时,所以我们要在mysql中进行设置时区（防止以后的各种bug）

　　　　具体操作可以看我的这篇博客：https://www.cnblogs.com/zhangzhixi/p/14286664.html

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&;characterEncoding=UTF-8&;serverTimezone=UTC
jdbc.username=root
jdbc.password=zhixi158

<?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、关联数据库配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--2、导入c3p0数据库连接池-->
    <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}"/>
    </bean>
    
    <!--spring提供的数据连接池-->
    <!--    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="${jdbc.driver}"/>
            <property name="url" value="${jdbc.url}"/>
            <property name="username" value="${jdbc.username}"/>
            <property name="password" value="${jdbc.password}"/>
        </bean>-->

    <!--3、sqlSessionFactor-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--4、绑定mybatis配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!--mapper映射器,也可以在mybatis中配置-->
        <property name="mapperLocations" value="classpath:mapper/BooksMapper.xml"/>
    </bean>

    <!--5、配置dao层接口扫描包,动态的实现了Dao层接口可以注入到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.zhixi.dao"/>
    </bean>
</beans>

13、spring-service.xml:做一些事务以及aop的植入

<?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:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans

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

    <!--1、统一管理bean-->
    <context:component-scan base-package="com.zhixi.service"/>

    <!--2、将所有业务类，注入到bean-->
    <bean id="booksService" class="com.zhixi.service.BooksServiceImpl">
        <property name="booksMapper" ref="booksMapper"/>
    </bean>

    <!--3、声明式事务配置:开启事务-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--4、aop事务支持-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!--配置事务切入-->
    <aop:config>
        <!--
            配置切入点表达式:指定哪些包中类， 要使用事务
            id:切入点表达式的名称，唯一值
            expression :切入点表达式， 指定哪些类要使用事务， aspectj会创建代理对象
        -->
        <aop:pointcut id="exPoint" expression="execution(* com.zhixi.dao.*.*(..))"/>
        <!--配置增强类-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="exPoint"/>
    </aop:config>

</beans>

14、spring-mvc.xml:映射controller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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--1、注解驱动-->
    <mvc:annotation-driven/>
    <!--2、静态资源过滤-->
    <mvc:default-servlet-handler/>
    <!--3、扫描controller包-->
    <context:component-scan base-package="com.zhixi.controller"/>
    <!--4、配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--前缀跟后缀-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

15、applicationContext.xml：spring总的配置文件，为了方便管理所有的spring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:aop="http://www.springframework.org/schema/aop"

       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

        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--注解的支持-->
    <context:annotation-config/>
    <import resource="classpath:spring-dao.xml"/>
    <import resource="classpath:spring-service.xml"/>
    <import resource="classpath:spring-mvc.xml"/>
</beans>

16、web.xml：主要是关联spring配置文件以及解决一些乱码跟过滤器

<?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">

<!--    <error-page>
        <error-code>500</error-code>
        <location>/WEB-INF/error/500.jpg</location>
    </error-page>-->

    <!--1、配置spring提供的servlet-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--2、关联配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:applicationContext.xml</param-value>
        </init-param>
        <!--3、设置启动级别-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    
    <!--4、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>
</web-app>

17、JSP页面

index.jsp：网站首页-->跳转到暑假展示页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>首页</title>
</head>
<body>
<div align="center">
    <a  href="${pageContext.request.contextPath}/books/allBook">跳转到书籍展示页面</a>
</div>
</body>
</html>

jsp/queryAllBookPage.jsp：查询全部书籍页面

<%@ 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>
</head>
<body>
<center><h1>欢迎来到书籍展示页面</h1></center>

<div style="text-align: center">

    <div>
        <%--跳转到添加书籍的页面--%>
        <a href="${pageContext.request.contextPath}/books/toBookPage">添加书籍</a>
        &nbsp;&nbsp;&nbsp;
        <a href="${pageContext.request.contextPath}/books/allBook">查询全部书籍</a>
    </div>

    <div>
        <%--根据id查询书籍--%>
        <form method="post" action="${pageContext.request.contextPath}/books/queryById">
            <input type="text" name="bookById" placeholder="输入id查询书籍">
            <input type="submit" value="查询"/><span style="color: #ff6659">${errorById}</span>
        </form>
    </div>

    <div>
        <%--根据书名查询书籍--%>
        <form method="post" action="${pageContext.request.contextPath}/books/queryByName">
            <input type="text" name="bookName" placeholder="输入书名查询书籍">
            <input type="submit" value="查询"><span style="color: red">${errorByName}</span>
        </form>
    </div>

    <table border="1" align="center" style="text-align: center">
        <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>
            <th>操作</th>
        </tr>

        <c:forEach var="books" items="${list}">
            <tr>
                <td>${books.bookID}</td>
                <td>${books.bookName}</td>
                <td>${books.bookCounts}</td>
                <td>${books.detail}</td>
                <td>
                    <a href="${pageContext.request.contextPath}/books/updateBookPage?id=${books.bookID}">修改</a>
                    &nbsp; | &nbsp;
                    <a href="${pageContext.request.contextPath}/books/delBook?id=${books.bookID}">删除</a>
                </td>
            </tr>
        </c:forEach>
    </table>

</div>


</body>
</html>

jsp/addBookPage.jsp：添加书籍页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加书籍页面</title>
</head>
<body>
<form style="text-align: center" action="${pageContext.request.contextPath}/books/addBook" method="post">
    <div>书籍名称：<input type="text" name="bookName" required/></div>
    <div>书籍数量：<input type="text" name="bookCounts" required/></div>
    <div>书籍描述：<input type="text" name="detail" required/></div>
    <div><input type="submit" value="提交"></div>
</form>
</body>
</html>

jsp/updateBookPage.jsp：修改书籍页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改书籍页面</title>
</head>
<body>
<form style="text-align: center" action="${pageContext.request.contextPath}/books/toUpdate" method="post">
    <%--
        出现的问题:我们提交了修改的SQL请求，但是修改失败，初次考虑，是事务问题，配置完毕事务，依旧失败!
        看一下SQL语句，能否执行成功: SQL执行失败，修改未完成
        前端传递隐藏域
    --%>
    <input type="hidden" name="bookID" value="${QUpdate.bookID}">

    <div>书籍名称：<input type="text" name="bookName" value="${QUpdate.bookName}" required/></div>
    <div>书籍数量：<input type="text" name="bookCounts" value="${QUpdate.bookCounts}" required/></div>
    <div>书籍描述：<input type="text" name="detail" value="${QUpdate.detail}" required/></div>
    <div><input type="submit" value="修改"/></div>
</form>
</body>
</html>

至此SSM框架整合基本的所有步骤已经完成！

首页：

书籍展示页面：