本文档详细介绍了如何使用SSM（Spring、SpringMVC、MyBatis）框架进行项目搭建，包括数据库表创建、环境配置、Maven项目结构、数据库连接池配置、MyBatis核心配置、Service层和服务实现、SpringMVC配置以及Controller层的编写。此外，还展示了视图层的JSP页面和页面间的交互操作。整个过程涵盖了从数据库设计到前端展示的完整流程。
1. 概述
业务流程：
项目目录结构图：
2. 数据库创建
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',50,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',20,'从进门到进牢'),
(4,'Python',30,'从入门到入土');
3. 环境搭建
-
新建Maven项目
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-CbJDdhmu-1664535158128)(https://img.yiqiangshiyia.cn/blog/QQ%E6%88%AA%E5%9B%BE20220910114207.png)]
-
导入相关的pom依赖
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>ssmbuild</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>ssmbuild Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <!--junit--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13</version> </dependency> <!--mysql驱动--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.30</version> </dependency> <!--数据库连接池--> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> <!--servlet-jsp依赖--> <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>2.0.7</version> </dependency> <!--Spring--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.3.22</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.3.22</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.9.9.1</version> </dependency> <!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.24</version> </dependency> </dependencies> <!--静态资源导出问题--> -
配置maven资源过滤
<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> -
建立基本结构和配置框架
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>ApplicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd"> </beans>
4. Mybatis层
-
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 -
IDEA连接数据库
-
编写MyBatis的核心配置文件
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核心配置文件--> <configuration> <!--配置数据源，交给spring去做--> <settings> <!--标准的日志工厂实现--> <setting name="logImpl" value="STDOUT_LOGGING"/> </settings> <typeAliases> <package name="com.ssm.pojo" /> </typeAliases> <!--每一个Mapper.xml都需要在mybatis核心配置文件中注册--> <mappers> <mapper resource="com/ssm/dao/BookMapper.xml"/> </mappers> </configuration> -
使用lombok插件，编写数据库对应的实体类Books
Books.java
package com.ssm.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; } -
编写Dao层的 Mapper接口
BookMapper.java
package com.ssm.dao; import com.ssm.pojo.Books; import org.apache.ibatis.annotations.Param; import java.util.List; public interface BookMapper { //增加一个Book int addBook(Books books); //根据id删除一个Book int deleteBookById(@Param("bookID") int id); //更新Book int updateBook(Books books); //根据id查询，返回一个Book Books queryBookById(@Param("bookID") int id); //查询所有Book，返回list集合 List<Books> queryAllBook(); Books queryBookByName(@Param("bookName") String bookName); } -
编写接口对应的 xml 文件
BookMapper.xml
<?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"> <!--namespace绑定一个对应的Mapper/Dao接口--> <mapper namespace="com.ssm.dao.BookMapper"> <!--增加一个Book--> <insert id="addBook" parameterType="Books"> insert into books(bookName,bookCounts,detail) values(#{bookName},#{bookCounts},#{detail}) </insert> <!--根据id删除一个Book--> <delete id="deleteBookById" parameterType="int"> delete from books where bookID = #{bookID} </delete> <!--更新Book--> <update id="updateBook" parameterType="Books"> update books set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail} where bookID = #{bookID} </update> <!--根据id查询，返回一个Book--> <select id="queryBookById" resultType="Books"> select * from books where bookID = #{bookID} </select> <!--查询全部Book--> <select id="queryAllBook" resultType="Books"> select * from books </select> <select id="queryBookByName" resultType="Books"> select * from books where bookName = #{bookName} </select> </mapper> -
编写Service层的接口和实现类
Service层的接口：BookService.java
package com.ssm.service; import com.ssm.pojo.Books; import org.apache.ibatis.annotations.Param; import java.util.List; public interface BookService { //增加一个Book int addBook(Books books); //根据id删除一个Book int deleteBookById(int id); //更新Book int updateBook(Books books); //根据id查询，返回一个Book Books queryBookById(int id); //查询全部Book，返回list集合 List<Books> queryAllBook(); Books queryBookByName(String bookName); }Service层的实现类：BookServiceImpl.java
package com.ssm.service; import com.ssm.dao.BookMapper; import com.ssm.pojo.Books; import java.util.List; public class BookServiceImpl implements BookService { //service层调dao层：组合Dao private BookMapper bookMapper; //调用dao层的操作，设置一个set接口，方便Spring管理 public void setBookMapper(BookMapper bookMapper){ this.bookMapper = bookMapper; } @Override public int addBook(Books books) { return bookMapper.addBook(books); } @Override public int deleteBookById(int id) { return bookMapper.deleteBookById(id); } @Override public int updateBook(Books books) { return bookMapper.updateBook(books); } @Override public Books queryBookById(int id) { return bookMapper.queryBookById(id); } @Override public List<Books> queryAllBook() { return bookMapper.queryAllBook(); } @Override public Books queryBookByName(String bookName) { return bookMapper.queryBookByName(bookName); } }
5. Spring层
-
配置Spring整合MyBatis
数据源使用c3p0连接池
-
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.关联数据库属性文件：database.properties--> <context:property-placeholder location="classpath:database.properties" /> <!--2.数据库连接池--> <!--DataSource：数据库连接池 c3p0 dbcp druid 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}"/> <!--配置c3po连接池的私有属性--> <property name="maxPoolSize" value="30"/> <property name="minPoolSize" value="10"/> <!--关闭后不自动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"/> <!--绑定Mybatis配置文件--> <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"/> <!--给出需要扫描的dao接口包--> <property name="basePackage" value="com.ssm.dao"/> </bean> </beans> -
Spring整合service层
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" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.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.ssm.service"/> <!--2.BookServiceImpl注入到IOC容器中：可以通过配置或者注解实现--> <bean id="BookServiceImpl" class="com.ssm.service.BookServiceImpl"> <property name="bookMapper" ref="bookMapper"/> </bean> <!--3.配置事物管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!--注入数据库连接池--> <property name="dataSource" ref="dataSource"/> </bean> <!--4.aop事物支持：AOP事物横切--> <!--note：除查询外所有的数据库操作都需要提交事物--> <!--配置事物通知--> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <!--给哪些方法配置事物--> <tx:attributes> <tx:method name="*" propagation="REQUIRED"/> </tx:attributes> </tx:advice> <!--配置事物切入--> <aop:config> <aop:pointcut id="txPointCut" expression="execution(* com.ssm.dao.*.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/> </aop:config> </beans>
6. SpringMVC层
6.1 SpringMVC层配置
-
web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <!--1.注册DispatcherServlet SpringMVC核心：请求分发器，前端控制器--> <servlet> <servlet-name>DispatchServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--关联一个Spring的配置文件：applicationContext.xml--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatchServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--2.配置encodingFilter：处理乱码问题--> <filter> <filter-name>encoding</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>encoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--3.设置Session过期时间--> <session-config> <session-timeout>15</session-timeout> </session-config> </web-app> -
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-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd"> <!--配置SpringMVC--> <!--1.开启SpringMVC注解驱动--> <mvc:annotation-driven/> <!--2.静态资源过滤--> <mvc:default-servlet-handler/> <!--3.扫描包：扫描web相关的bean--> <context:component-scan base-package="com.ssm.controller"/> <!--4.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> </beans> -
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 https://www.springframework.org/schema/beans/spring-beans.xsd"> <import resource="spring-dao.xml"/> <import resource="spring-service.xml"/> <import resource="spring-mvc.xml"/> </beans>
项目配置文件结束！！！
6.2 Controller层
-
查询全部书籍
@Controller @RequestMapping("/book") public class BookController { @Autowired @Qualifier("BookServiceImpl") //使用注解自动装配 private BookService bookService; //查询全部书籍 @RequestMapping("/allBook") public String list(Model model){ List<Books> list = bookService.queryAllBook(); model.addAttribute("list",list); return "allBook"; } } -
添加书籍
@Controller @RequestMapping("/book") public class BookController { @Autowired @Qualifier("BookServiceImpl") //使用注解自动装配 private BookService bookService; //添加书籍 @RequestMapping("/toAddBook") public String toAddPaper(){ return "addBook"; } @RequestMapping("/addBook") public String addPaper(Books books){ System.out.println(books); bookService.addBook(books); return "redirect:/book/allBook"; } } -
修改书籍
@Controller @RequestMapping("/book") public class BookController { @Autowired @Qualifier("BookServiceImpl") //使用注解自动装配 private BookService bookService; //修改书籍 @RequestMapping("/toUpdateBook") public String toUpdateBook(Model model,int id){ Books books = bookService.queryBookById(id); System.out.println(books); model.addAttribute("books",books); return "updateBook"; } @RequestMapping("/updateBook") public String updateBook(Model model,Books book){ System.out.println(book); bookService.updateBook(book); Books books = bookService.queryBookById(book.getBookID()); model.addAttribute("books",books); return "redirect:/book/allBook"; } } -
删除书籍
@Controller @RequestMapping("/book") public class BookController { @Autowired @Qualifier("BookServiceImpl") //使用注解自动装配 private BookService bookService; //删除书籍 @RequestMapping("/del/{bookId}") public String deleteBook(@PathVariable("bookId") int id){ bookService.deleteBookById(id); return "redirect:/book/allBook"; } } -
BookController类编写
BookController.java
package com.ssm.controller; import com.ssm.pojo.Books; import com.ssm.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.util.ArrayList; import java.util.List; @Controller @RequestMapping("/book") public class BookController { //controller层调用service层 @Autowired @Qualifier("BookServiceImpl") //使用注解自动装配 private BookService bookService; //查询全部书籍，并且返回到一个书籍展示页面 @RequestMapping("/allBook") public String list(Model model){ List<Books> list = bookService.queryAllBook(); model.addAttribute("list",list); return "allBook"; } //跳转到增加书籍页面 @RequestMapping("/toAddBook") public String toAddPaper(){ return "addBook"; } //添加书籍的请求 @RequestMapping("/addBook") public String addBook(Books books){ bookService.addBook(books); return "redirect:/book/allBook"; //重定向到我们的@RequestMapping("allBook")请求 } //跳转到修改书籍页面 @RequestMapping("/toUpdateBook") public String toUpdatePaper(Model model,int id){ Books books = bookService.queryBookById(id); //通过Model页面返回给前端页面 model.addAttribute("QBook",books); return "updateBook"; } //修改书籍 @RequestMapping("/updateBook") public String updateBook(Books books){ bookService.updateBook(books); return "redirect:/book/allBook"; } //删除书籍 @RequestMapping("/deleteBook/{bookId}") public String deleteBook(@PathVariable("bookId") int id){ bookService.deleteBookById(id); return "redirect:/book/allBook"; } //查询书籍 @RequestMapping("/queryBook") public String queryBook(String queryBookByName,Model model){ Books books = bookService.queryBookByName(queryBookByName); List<Books> list = new ArrayList<Books>(); list.add(books); //当查询结果为null时 if(books == null){ list = bookService.queryAllBook(); model.addAttribute("error","未查询到书籍"); } model.addAttribute("list",list); return "allBook"; } }
6.3 视图层
-
编写首页
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <html> <head> <title>首页</title> <style> a { text-decoration: none; color: black; font-size: 18px; } h3 { width: 180px; height: 38px; margin: 100px auto; text-align: center; line-height: 38px; background: deepskyblue; border-radius: 4px; } </style> </head> <body> <h3> <a href="${pageContext.request.contextPath}/book/allBook">进入书籍页面</a> </h3> </body> </html> -
书籍列表页面
allbook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <html> <head> <title>书籍列表</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <%--引入Bootstrap美化界面--%> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h1> <small>书籍列表 -- 显示所有书籍</small> </h1> </div> </div> </div> <div class="row"> <div class="col-md-4 column"> <%--toAddBook--%> <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增书籍</a> <%--显示全部书籍--%> <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">${error}</span> <input type="text" name="queryBookByName" class="form-control" placeholder="请输出要查询书籍的名称"> <input type="submit" value="查询" class="btn btn-primary"> </form> </div> </div> <div class="row clearfix"> <div class="col-md-12 column"> <table class="table table-hover table-striped"> <thead> <tr> <th>书籍编号</th> <th>书籍名字</th> <th>书籍数量</th> <th>书籍详情</th> <th>操作</th> </tr> </thead> <%--书籍从数据库中查询出来，从封装的list中遍历出来：forEach--%> <tbody> <c:forEach var="book" items="${requestScope.get('list')}"> <tr> <td>${book.getBookID()}</td> <td>${book.getBookName()}</td> <td>${book.getBookCounts()}</td> <td>${book.getDetail()}</td> <td> <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookID}">修改</a> | <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a> </td> </tr> </c:forEach> </tbody> </table> </div> </div> </div> </body> </html> -
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" isELIgnored="false" %> <html> <head> <title>新增书籍</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <%--引入Bootstrap美化界面--%> <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="${pageContext.request.contextPath}/book/addBook" method="post"> <div class="form-group"> <label>书籍名称：</label> <input type="text" name="bookName" class="form-control" required> </div> <div class="form-group"> <label>书籍数量：</label> <input type="text" name="bookCounts" class="form-control" required> </div> <div class="form-group"> <label>书籍描述：</label> <input type="text" name="detail" class="form-control" required> </div> <div class="form-group"> <input type="submit" class="form-control" value="添加"> </div> </form> </div> </body> </html> -
修改书籍页面
updateBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <html> <head> <title>修改书籍</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <%--引入Bootstrap美化界面--%> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> </head> <body> <div class="container"> <div class="row clearfix"> <div class="col-md-12 column"> <div class="page-header"> <h1> <small>修改书籍</small> </h1> </div> </div> </div> <form action="${pageContext.request.contextPath}/book/updateBook" method="post"> <%--出现的问题：提交了修改的SQL请求，但是修改失败，初次考虑是事物未提交的问题，但事物配置完毕依旧失败--%> <%--查看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="${QBook.bookID}"> <div class="form-group"> <label>书籍名称：</label> <input type="text" name="bookName" class="form-control" value="${QBook.bookName}" required> </div> <div class="form-group"> <label>书籍数量：</label> <input type="text" name="bookCounts" class="form-control" value="${QBook.bookCounts}" required> </div> <div class="form-group"> <label>书籍描述：</label> <input type="text" name="detail" class="form-control" value="${QBook.detail}" required> </div> <div class="form-group"> <input type="submit" class="form-control" value="修改"> </div> </form> </div> </body> </html>
配置Tomcat运行测试
7. 运行结果
首页：
书籍列表：
新增书籍：
修改书籍：
修改书籍后重定向：
查询书籍：
![[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-GGlWHLnH-1664535158132)(https://img.yiqiangshiyia.cn/blog/%E6%9F%A5%E8%AF%A2%E4%B9%A6%E7%B1%8D.png)]](https://i-blog.csdnimg.cn/blog_migrate/a22b3f3168892c8dbcb238f1a4c179a9.png)
查询书籍未查到：
![[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-SXzJVexs-1664535158133)(https://img.yiqiangshiyia.cn/blog/%E6%9F%A5%E8%AF%A2%E4%B9%A6%E7%B1%8D%E6%9C%AA%E6%9F%A5%E5%88%B0.png)]](https://i-blog.csdnimg.cn/blog_migrate/ddfd90964c06a57fa5bd3c0d6e0bf575.png)
扫一扫
810
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
