SSM整合 书库案例（简单实现）

于 2021-03-22 16:17:14 发布
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分类专栏： SSM案例 文章标签： ssm web java maven
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本文链接：https://blog.youkuaiyun.com/weixin_50513383/article/details/115079660
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1. 新建一个Maven项目

2. 设置项目默认构建编码

<properties>
        <!--项目的默认构建编码-->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!--编码版本-->
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

3. 导入依赖

<dependencies>
     <!-- 测试单元 -->
     <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
         <version>4.12</version>
     </dependency>

     <!-- mysql数据库 -->
     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <version>8.0.11</version>
     </dependency>

     <!-- c3p0数据源 -->
     <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
     <dependency>
         <groupId>com.mchange</groupId>
         <artifactId>c3p0</artifactId>
         <version>0.9.5.2</version>
     </dependency>
     <!-- mybatis -->
     <dependency>
         <groupId>org.mybatis</groupId>
         <artifactId>mybatis</artifactId>
         <version>3.5.3</version>
     </dependency>

     <!-- mybatis整合Spring mybatis用了3点几以上整合Spring的jar需要2.0以上-->
     <dependency>
         <groupId>org.mybatis</groupId>
         <artifactId>mybatis-spring</artifactId>
         <version>2.0.2</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>

     <!-- Spring -->
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-webmvc</artifactId>
         <version>5.2.0.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-jdbc</artifactId>
         <version>5.2.0.RELEASE</version>
     </dependency>

     <!-- aop织入 -->

     <dependency>
         <groupId>org.aspectj</groupId>
         <artifactId>aspectjweaver</artifactId>
         <version>1.9.4</version>
     </dependency>
 </dependencies>

4. 设置Maven静态资源过滤

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

5. 创建books表并插入测试数据

CREATE TABLE IF NOT EXISTS `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');

6. 添加pojo、dao、service、controller、interceptor包

在这里插入图片描述

7. 添加Mybatis配置文件设置包别名和日志

<?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">
<!-- 核心配置文件 -->
<configuration>
    
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
        <!--<setting name="logImpl" value="LOG4J"/>-->
    </settings>
    
    <typeAliases>
        <package name="com.wlp.pojo"/>
    </typeAliases>
   
</configuration>

8. 添加Spring中applicationContext.mxl配置文件

9. 添加jdbc的properties文件

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?serverTimezone=UTC
jdbc.user=root
jdbc.password=8888

10. 编写pojo层（books实体）

package com.wlp.pojo;

/**
 * 功能：书籍表
 *
 * @author 花子June
 * @modifier 花子June
 * @date 2021-03-18 8:32
 * @Version V1.0
 */
public class Books {

    // 书籍id
    private int bookId;

    // 书籍名称
    private String bookName;

    // 数量
    private int bookCounts;

    // 书籍描述
    private String detail;

    public Books() {
    }

    public Books(int bookId, String bookName, int bookCounts, String detail) {
        this.bookId = bookId;
        this.bookName = bookName;
        this.bookCounts = bookCounts;
        this.detail = detail;
    }

    public int getBookId() {
        return bookId;
    }

    public void setBookId(int bookId) {
        this.bookId = bookId;
    }

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public int getBookCounts() {
        return bookCounts;
    }

    public void setBookCounts(int bookCounts) {
        this.bookCounts = bookCounts;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail;
    }

    @Override
    public String toString() {
        return "Books{" +
                "bookId=" + bookId +
                ", bookName='" + bookName + '\'' +
                ", bookCounts=" + bookCounts +
                ", detail='" + detail + '\'' +
                '}';
    }
}

11. 编写Dao层

1、编写BooksDaoMapper接口
package com.wlp.dao;

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

import java.util.List;

/**
 * 功能：books表dao层
 *
 * @author 花子June
 * @modifier 花子June
 * @date 2021-03-18 8:47
 * @Version V1.0
 */
public interface BooksDaoMapper {

    // 添加一本书
    int addBooks(Books books);

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

    // 更新一本书
    int updateBooks(Books books);

    // 查找一本书
    Books getQuery(@Param("bookId") int bookId);

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

}
2、编写BooksDaoMapper配置文件
<?xml version="1.0" encoding="gbk" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 一个mapper.xml对应一个接口 -->
<mapper namespace="com.wlp.dao.BooksDaoMapper">

    <!-- 添加一本书 -->
    <insert id="addBooks" parameterType="Books">
        insert into ssmbuild.books(bookId,bookName,bookCounts,detail)values(#{bookId},#{bookName},#{bookCounts},#{detail});
    </insert>

    <!-- 删除一本书 -->
    <delete id="deleteBooks" parameterType="int">
        delete from ssmbuild.books where bookId = #{bookId};
    </delete>

    <!-- 更新一本书 -->
    <update id="updateBooks" parameterType="Books">
        update ssmbuild.books set
        bookName = #{bookName},
        bookCounts = #{bookCounts},
        detail = #{detail} where bookId = #{bookId};
    </update>

    <!-- 查询一本书 -->
    <select id="getQuery" parameterType="int" resultType="Books">
        select * from ssmbuild.books where bookId = #{bookId};
    </select>

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

</mapper>

12. 编写Service层

1、编写BooksService接口
package com.wlp.service;
import com.wlp.pojo.Books;
import java.util.List;
/**
 * 功能：
 *
 * @author 花子June
 * @modifier 花子June
 * @date 2021-03-18 9:16
 * @Version V1.0
 */
public interface BooksService {

    // 添加一本书
    int addBooks(Books books);

    // 删除一本书
    int deleteBooks(int bookId);

    // 更新一本书
    int updateBooks(Books books);

    // 查找一本书
    Books getQuery(int bookId);

    // 查询所有的书
    List<Books> getQueryAll();
}
2、编写BooksServiceImpl实现类
package com.wlp.service.impl;
import com.wlp.dao.BooksDaoMapper;
import com.wlp.pojo.Books;
import com.wlp.service.BooksService;
import java.util.List;

/**
 * 功能：
 *
 * @author 花子June
 * @modifier 花子June
 * @date 2021-03-19 10:36
 * @Version V1.0
 */
public class BooksServiceImpl implements BooksService { 
	// 调用Dao层
    private BooksDaoMapper booksDaoMapper;

	// 添加Set方法，使用Spring注入BooksDaoMapper 
    public void setBooksDaoMapper(BooksDaoMapper booksDaoMapper) {
        this.booksDaoMapper = booksDaoMapper;
    }

    public int addBooks(Books books) {
    
    	// 使用注入的Dao类接口的子类调用其添加方法
        return booksDaoMapper.addBooks(books);
    }

    public int deleteBooks(int bookId) {
    
		// 使用注入的Dao类接口的子类调用其删除方法
        return booksDaoMapper.deleteBooks(bookId);
    }

    public int updateBooks(Books books) {
	
		// 使用注入的Dao类接口的子类调用其更新方法
        return booksDaoMapper.updateBooks(books);
    }

    public Books getQuery(int bookId) {
		
		// 使用注入的Dao类接口的子类调用其查询方法
        return booksDaoMapper.getQuery(bookId);
    }

    public List<Books> getQueryAll() {
		
		// 使用注入的Dao类接口的子类调用其查询所有方法
        return booksDaoMapper.getQueryAll();
    }
}

13. 编写controller层

package com.wlp.controller;

import com.wlp.pojo.Books;
import com.wlp.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.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

/**
 * 功能：
 *
 * @author 花子June
 * @modifier 花子June
 * @date 2021-03-19 13:55
 * @Version V1.0
 */
@Controller  // 将此类装配到Spring容器中
// 设置父类访问路径，访问其子类路径需添加/book, 如：/book/allBook查询所有书籍页面
@RequestMapping("/book")								
public class BooksController {

	// 自动注入Bean
    @Autowired
    @Qualifier("BooksServiceImpl")
    private BooksService booksService;

    // 查询所有书籍
    // @RequestMapping 注解能够处理 HTTP 请求的方法, 
    // 比如 GET, PUT, POST, DELETE 以及 PATCH。
    @RequestMapping("/allBook") 	 //映射访问路径
    public String list(Model model){
		// 查询所有书籍
        List<Books> queryAll = booksService.getQueryAll();
		// 将查询的数据添加到模型中
        model.addAttribute("list",queryAll);

        // 跳转到显示所有书籍页面
        return "books/allBook";  // 
    }

    // 查询一本书
    @RequestMapping("/queryBook")	 //映射访问路径
    public String query(){
        return "redirect:book/queryBook";
    }

    // 跳转到添加页面
    @RequestMapping("/addBook")		 //映射访问路径
    public String addBook(){
        // 跳转到添加书籍页面
        return "books/insertBook";
    }

    // 添加一本书
    @RequestMapping("/insertBook")	 //映射访问路径
    public String insert(Books books){
 		// 添加书籍到数据库中
        booksService.addBooks(books);

        // 重定向到查询所有书籍页面
        return "redirect:/book/allBook";
    }

	// 使用RestFul 风格拼接url
	// @PathVariable 注解，让方法参数的值对应绑定到一个URI模板变量上。
    @RequestMapping("/deleteBook/{bookId}")
    public String delete(@PathVariable("bookId") int id){
    	// 根据id删除一本书
        booksService.deleteBooks(id);

        // 重定向到查询所以书籍页面
        return "redirect:/book/allBook";
    }

    // 跳转到更新页面
    @RequestMapping("/updateBook/{bookId}")
    public String update(Model model,@PathVariable("bookId") int id){
        // 查询需要更新的数据
        Books query = booksService.getQuery(id);
        System.out.println("需要更新的数据为:" + query);
        model.addAttribute("book",query);
        // 跳转到更新页面
        return "books/updateBook";
    }

    // 更新页面跳转到此页面
    @RequestMapping("/toUpdateBooks")
    public String toUpdateBook(Books books){

        booksService.updateBooks(books);

        // 重定向到查询所有书籍页面
        return "redirect:/book/allBook";
    }

}

14.编写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">

    <!--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:这里加载的是总的配置文件！-->
            <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>

15. 编写interceptor拦截器

package com.wlp.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 功能：
 *
 * @author 花子June
 * @modifier 花子June
 * @date 2021-03-22 9:31
 * @Version V1.0
 */
 /**
  * 实现拦截器功能只需一个类实现HandlerInterceptor接口就行
  * 然后可重写三个方法，其方法可为空，可不重写也可重写
  */
public class MyInterceptor implements HandlerInterceptor {
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("=======拦截前========");
		// 当返回值为true放行， 当返回值为false拦截
        return true;
    }

    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("=======拦截后========");
    }

    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("========清理==========");
    }
}

16. 编写Spring配置文件

1、编写Spring-Dao.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

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

    <!-- 2.配置数据源 -->
    <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="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!-- 3.配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 绑定Mybatis核心配置文件  -->
        <property name="configLocation" value="classpath:Mybatis.xml"/>
        <!-- 绑定BooksDaoMapper.xml文件 -->
        <property name="mapperLocations" value="classpath:com/wlp/dao/*.xml"/>
    </bean>

    <!-- 4.配置dao接口扫码包 动态实现Dao接口注入到spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入SQLSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 设置需要扫码的doa接口 -->
        <property name="basePackage" value="com.wlp.dao"/>
    </bean>
</beans>
2、编写Spring-Service.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       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/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!-- 1.将service实现类注入IOC容器中 -->
    <bean id="BooksServiceImpl" class="com.wlp.service.impl.BooksServiceImpl">
        <property name="booksDaoMapper" ref="booksDaoMapper"/>
    </bean>

    <!-- 2. 配置数据库事务 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 3.配置事务的通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <!-- 给指定方法配置传播特性  -->
        <tx:attributes>
            <!-- 设置添加类型操作走事务 -->
            <tx:method name="add" propagation="REQUIRED"/>
            <!-- 设置删除类型操作走事务 -->
            <tx:method name="delete" propagation="REQUIRED"/>
            <!-- 设置更新类型操作走事务 -->
            <tx:method name="update" propagation="REQUIRED"/>
            <!-- 设置查询类型操作为只读 -->
            <tx:method name="query" read-only="true"/> 
            <!-- 设置所有类型操作都走事务 -->
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!-- 设置事务切入 -->
    <aop:config>
        <!-- 设置切面 -->
        <aop:pointcut expression="execution(* com.wlp.service.*.*(..))" id="txPointCut"/>
        <!-- 设置在切面切入事务 -->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
    </aop:config>
	<!-- 表示使用CGLib动态代理技术织入增强 -->
    <aop:aspectj-autoproxy proxy-target-class="true"/>
</beans>
3、编写Spring-controller.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

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

    <!-- 2.静态资源默认servlet处理器 -->
    <mvc:default-servlet-handler/>

    <!-- 3.配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <!-- 设置前缀 -->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!-- 设置后缀 -->
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 4.扫描web相关的bean -->
    <context:component-scan base-package="com.wlp.controller"/>

    <!-- 5.配置拦截器 -->
    <mvc:interceptors>
        <mvc:interceptor>
            <!-- /** 拦截所有路径 -->
            <!--/admin/* 拦截的是/admin/add等等这种 , /admin/add/user不会被拦截-->
            <!--/admin/** 拦截的是/admin/下的所有-->
            <mvc:mapping path="/**"/>
            <!-- 配置的拦截器class路径 -->
            <bean class="com.wlp.interceptor.MyInterceptor"/>
        </mvc:interceptor>
    </mvc:interceptors>

</beans>
4、编写applicationContext.xml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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

	<!-- 将所有Spring配置文件整合在一起 -->
    <import resource="classpath:Spring-dao.xml"/>
    <import resource="classpath:Spring-service.xml"/>
    <import resource="classpath:Spring-controller.xml"/>

</beans>

17. 编写JSP页面

0、开始页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<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" >点击进入书籍列表页</a>
      </h3>  
  </body>
</html>
1、显示所有书籍页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
    <head>
        <title>书籍页面</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">
    </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/addBook">新增</a>
                </div>
            </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="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}/book/updateBook/${Books.bookId}">更改</a>
                                    <a href="/book/deleteBook/${Books.bookId}">删除</a>
                                </td>
                            </tr>
                        </c:forEach>
                    </tbody>
                </table>
            </div>
        </div>
  </body>
</html>
2、编写更新页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
    <head>
        <title>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="${pageContext.request.contextPath}/role/toUpdate" method="post">
                <input type="hidden" name="bookId" value="${book.bookId}"/>
                书籍名称：<input type="text" name="bookName" value="${book.bookName}"/>
                书籍数量：<input type="text" name="bookCounts" value="${book.bookCounts}"/>
                书籍详情：<input type="text" name="detail" value="${book.detail}"/>
                <input type="submit" value="提交"/>
            </form>
        </div>
  </body>
</html>
3、编写插入页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
    <head>
        <title>新增书籍</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">

    </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/insertBook" 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>
  </body>
</html>

18.配置Tomcat猫，测试

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