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SSM框架整理

2021-06-14 23:01:28  阅读：136  来源： 互联网

标签：xml 框架 int public SSM books 整理 import 书籍


SSM框架整理

本次整理时的基础环境：

  • IDEA 2020.3
  • MySQL 8.0.22
  • Tomcat 9.0.46
  • Maven 3.6.1

一、整合SSM

1、基本环境配置

  1. 新建maven的web项目，setting里检查maven环境（版本、仓库）；
  2. 添加Tomcat（VM options添加：-Dfile.encoding=UTF-8，解决中文乱码），启动测试
  3. pom.xml添加依赖和文件导出过滤
<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>8.0.22</version>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.5</version>
        </dependency>
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>mchange-commons-java</artifactId>
            <version>0.2.20</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>5.2.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.10</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.60</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.4</version>
        </dependency>
    </dependencies>

    <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>
  1. 创建基本目录结构和配置框架
  • com.freshbird.dao
  • com.freshbird.controller
  • com.freshbird.pojo
  • com.freshbird.service
  • resources -> 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>
  • resources -> applicationContext.xml（作为总的xml配置文件，供外部引入）
  • 应当是编写完一个xml配置文件就在这里import进去一个，为了方便，这里直接import该项目使用的全部xml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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">
       
	<import resource="classpath:spring-dao.xml"/>
    <import resource="classpath:spring-service.xml"/>
    <import resource="classpath:spring-mvc.xml"/>
</beans>

2、数据库环境配置

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');

3、框架整理

  • 先在 IDEA 里连接数据库，方便代码编写

3.1 MyBatis部分

  1. 编写实体类：pojo -> Books
    使用了lombok插件，自动生成get/set/toString/有参构造/无参构造等方法
package com.freshbird.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;
}
  1. 编写dao层的mapper文件：dao -> BookMapper
package com.freshbird.dao;

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

import java.util.List;

public interface BookMapper {

    // 增加一本书
    int addBook(Books books);

    // 删除一本书
    int deleteBookById(@Param("bookID") int id);

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

    // 根据 id 查询书
    Books queryBookById(@Param("bookID") int id);

    // 查询所有书
    List<Books> queryAllBook();

    // 根据书名查询书
    List<Books> queryBookByName(@Param("bookName") String bookName);

}
  1. 编写接口对应的Mapper.xml文件：dao -> BookMapper.xml
<?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">
        
<!-- namespace 绑定对应的接口 -->
<mapper namespace="com.freshbird.dao.BookMapper">
    <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}
        </where>
    </delete>

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

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

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

    <select id="queryBookByName" resultType="Books">
        select * from ssmbuild.books
        where bookName like #{bookName}
    </select>

</mapper>
  1. 数据库配置文件：resources -> database.properties
#使用c3p0连接池的话，要加上jdbc,否则会把username识别为系统名
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&amp&userUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
jdbc.username=root
jdbc.password=xxx
  1. 编写MyBatis的核心配置文件：resources -> 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>
    <!-- 开启日志 -->
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>

    <!-- 起别名，用到 pojo 包下的 bean 时，可以直接用类名（首字母小写），无需写全限定类名-->
    <typeAliases>
        <package name="com.freshbird.pojo"/>
    </typeAliases>

    <!-- 绑定 Mapper 文件（使用 class 方式绑定，接口和对应的 xml 文件必须在同一个包下） -->
    <mappers>
        <mapper class="com.freshbird.dao.BookMapper"/>
    </mappers>
</configuration>
  1. 编写Service层的接口和实现类
    service -> BookService
package com.freshbird.service;

import com.freshbird.pojo.Books;

import java.util.List;

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);

    // 根据 id 查询书
    Books queryBookById(int id);

    // 查询所有书
    List<Books> queryAllBook();

    // 根据书名查询书
    List<Books> queryBookByName(String bookName);
}

service -> BookServiceImpl

package com.freshbird.service;

import com.freshbird.dao.BookMapper;
import com.freshbird.pojo.Books;

import java.util.List;

public class BookServiceImpl implements BookService{
    private BookMapper bookMapper;

    public void setBookMapper(BookMapper bookMapper) {
        this.bookMapper = bookMapper;
    }

    public int addBook(Books books) {
        return bookMapper.addBook(books);
    }

    public int deleteBookById(int id) {
        return bookMapper.deleteBookById(id);
    }

    public int updateBook(Books books) {
        return bookMapper.updateBook(books);
    }

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

    public List<Books> queryAllBook() {
        return bookMapper.queryAllBook();
    }

    public List<Books> queryBookByName(String bookName) {
        return bookMapper.queryBookByName("%" + bookName + "%");
    }
}

3.2 Spring层

  • 配置Spring整合MyBatis，这里数据源使用c3p0连接池；
  1. 编写Spring整合Mybatis的相关的配置文件
    resources -> spring-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置整合mybatis -->
    <!-- 1.关联数据库文件 -->
    <context:property-placeholder location="classpath:database.properties"/>

    <!-- 2.数据库连接池 -->
    <!--数据库连接池
        dbcp 半自动化操作 不能自动连接
        c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面）
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置连接池属性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>

        <!-- c3p0 连接池的私有属性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 关闭连接后不自动commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 获取连接超时时间 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 当获取连接失败重试次数 -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>

    <!-- 3.配置 SqlSessionFactory 对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置 MyBaties 全局配置文件: mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!-- 4.配置扫描 dao 接口包，动态实现 dao 接口注入到 spring 容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描 dao 接口包 -->
        <property name="basePackage" value="com.freshbird.dao"/>
    </bean>

</beans>
  1. 编写Spring整合service层的相关的配置文件
    resources -> spring-service.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
   http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 1. 扫描 service 相关的 bean -->
    <context:component-scan base-package="com.freshbird.service"/>

    <!-- 2. BookServiceImpl 注入到 IoC 容器中-->
    <bean id="BookServiceImpl" class="com.freshbird.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>

    <!-- 3. 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 4. 事务支持，Spring 帮我们做了，可以不用写-->
</beans>

3.3 SpringMVC层

  1. web.xml中注册DispatcherServlet，字符过滤器和设置session过期时间
    WEB-INF -> web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="https://jakarta.ee/xml/ns/jakartaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd"
         version="5.0">

    <!--DispatcherServlet-->
    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <!-- 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>
  1. 编写SpringMVC的配置文件spring-mvc.xml
    resources -> spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/mvc
       https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 配置 SpringMVC -->
    <!-- 1.开启 SpringMVC 注解驱动 -->
    <mvc:annotation-driven/>
    <!-- 2. 让 SpringMVC 不处理静态资源（静态资源过滤） -->
    <mvc:default-servlet-handler/>

    <!-- 3.配置 jsp 显示 ViewResolver 视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

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

</beans>

3.4 Controller层和视图层

  1. BookController 类编写
    controller -> BookController
package com.freshbird.controller;

import com.freshbird.pojo.Books;
import com.freshbird.service.BookService;
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.awt.print.Book;
import java.util.ArrayList;
import java.util.List;

@Controller
@RequestMapping("/book")
public class BookController {
    // controller调service层

    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

    // 查询全部书籍，并返回到书籍展示页面
    @RequestMapping("/allBook")
    public String queryAllBook(Model model) {
        List<Books> booksList = bookService.queryAllBook();
        model.addAttribute("list", booksList);
        return "allBook";
    }

    // 跳转到增加书籍页面
    @RequestMapping("/toAddBook")
    public String toAddPage() {
        return "addBook";
    }

    // 添加书籍的请求
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        System.out.println("addBook=>" + books);
        bookService.addBook(books);
        return "redirect:/book/allBook";
    }

    // 跳转到修改书籍页面
    @RequestMapping("/toUpdateBook")
    public String toUpdatePage(int id, Model model) {
        Books books = bookService.queryBookById(id);
        model.addAttribute("QBooks", books);
        return "updateBook";
    }

    // 修改书籍
    @RequestMapping("/updateBook")
    public String updateBook(Books books) {
        System.out.println("updateBook=>" + books);
        bookService.updateBook(books);
        return "redirect:/book/allBook";
    }

    // 删除书籍
    @RequestMapping("/deleteBook/{bookId}")
    public String deleteBookById(@PathVariable("bookId") int id) {
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }

    // 查询一本书
    @RequestMapping("/queryBook")
    public String queryBookName(String queryBookName, Model model) {
        List<Books> booksList = bookService.queryBookByName(queryBookName);
        System.err.println("BookController: queryBookName=> " + booksList);
        if (booksList == null || booksList.size() == 0 || queryBookName.equals("") || queryBookName == null) {
            booksList = bookService.queryAllBook();
            model.addAttribute("error", "未查到相关书籍信息！");
        }
        model.addAttribute("list", booksList);
        return "allBook";
    }
}
  1. 编写首页：index.jsp
    WEB-INF -> index.jsp
<%@ 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: skyblue;
        border-radius: 5px;
      }
    </style>
  </head>
  <body>
    <h3>
      <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a>
    </h3>
  </body>
</html>
  1. 编写书籍列表和搜索页面 allbook.jsp
    WEB-INF -> jsp -> 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>书籍展示</title>

    <!-- 引入 Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
    <%-- 清除浮动 --%>
    <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 class="row">
            <div class="col-md-4 column">
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍</a>
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示全部书籍</a>
            </div>
            <div class="col-md-8 column">
                <%-- 查询书籍 --%>
                <form class="form-inline" action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float: right">
                    <span style="color: red; font-weight: bold">${error}</span>
                    <input type="text" name="queryBookName" class="form-control" placeholder="请输入要查询的书籍名称">
                    <input type="submit" value="查询" class="btn btn-primary">
                </form>
            </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>书籍名称</th>
                        <th>书籍数量</th>
                        <th>书籍详情</th>
                        <th>操作</th>
                    </tr>
                </thead>
                <%-- 书籍从数据库中查询出来，从这个list中遍历出来 --%>
                <tbody>
                    <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/toUpdateBook?id=${book.bookID}">修改</a>
                                &nbsp; | &nbsp;
                                <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>
                            </td>
                        </tr>
                    </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</html>
  1. 编写添加书籍页面：addBook.jsp
    WEB-INF -> jsp -> addBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加书籍</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
    <%-- 清除浮动 --%>
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表 ————— 新增书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/addBook" method="post">
        <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>
  1. 修改书籍页面 updateBook.jsp
    WEB-INF -> jsp -> updateBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改书籍</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
    <%-- 清除浮动 --%>
    <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="${pageContext.request.contextPath}/book/updateBook" method="post">
        <%-- 前端传递隐藏域 --%>
        <input type="hidden" name="bookID" value="${QBooks.bookID}">
        <div class="form-group">
            <label>书籍名称：</label>
            <input type="text" name="bookName" class="form-control" value="${QBooks.bookName}" required>
        </div>
        <div class="form-group">
            <label>书籍数量：</label>
            <input type="text" name="bookCounts" class="form-control" value="${QBooks.bookCounts}" required>
        </div>
        <div class="form-group">
            <label>书籍描述：</label>
            <input type="text" name="detail" class="form-control" value="${QBooks.detail}" required>
        </div>
        <div class="form-group">
            <input type="submit" class="form-control" value="修改">
        </div>
    </form>

</div>
</body>
</html>

4、效果展示：

在这里插入图片描述

笔记参考：狂神说
https://mp.weixin.qq.com/s/SDxqGu_il3MUCTcN1EYrng

标签：xml,框架,int,public,SSM,books,整理,import,书籍
来源： https://blog.csdn.net/qq_41481851/article/details/117912466

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