学习完Spring+SpringMVC+MyBatis ,我们需要用一个项目来整合SSM框架,这里我们用一个简易的书籍管理系统来整合SSM框架,并回顾Spring+SpringMVC+MyBatis的内容。
注:本篇文章参考于B站狂神说老师的视频,原视频地址【狂神说Java】SpringMVC最新教程IDEA版通俗易懂,如有遗漏和错误欢迎大家提出!!!
1、环境准备
1.1、环境要求
idea 2020.3+MySql 8.0.29+maven 3.5.2
前端:jsp+css+bootstrap
1.2、搭建数据据库环境
创建一个存放书籍数据的数据库表
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')
数据库表如图:
2、基本环境搭建
2.1、新建普通Maven项目,添加web的支持
2.2、导入依赖
常用的依赖:junit,数据库驱动,连接池,servlet,jsp,mybatis,mybatis-spring,spring,lombok
<!-- 依赖: junit,数据库驱动,连接池,servlet,jsp,mybatis,mybatis-spring,spring-->
<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>8.0.29</version>
</dependency>
<!-- 数据库连接池 :c3po dbcp-->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</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>
<!--Mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
<!--Spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.14</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.14</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
</dependency>
</dependencies>
2.3、Maven资源过滤问题设置
<!--静态资源导出-->
<!--maven静态资源过滤问题-->
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
2.4、maven扫描xml文件编码问题
少数人会遇这个问题
java 解决异常 2 字节的 UTF-8 序列的字节2 无效的问题
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
2.5、建立基本结构和配置框架
-
在resource目录下新建
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>
-
在resource目录下新建
application.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> </beans>
3、Mybatis层编写
3.1、编写数据库配置文件database.properties
-
注意MySQL8.0以上要设置时区,最后加上
serverTimezone=Asia/Shanghai
jdbc.driver=com.mysql.cj.jdbc.Driver
# 如果使用的是mysql8.0+版本的,需要增加一个时区的配置&serverTimezone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
jdbc.username=root
jdbc.password=qjd011212
3.2、编写MyBatis的核心配置文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<!--配置日志 在控制台输出 有点多,可不加-->
<setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>
<!--配置数据源,交给Spring去做-->
<!--起别名-->
<typeAliases>
<package name="com.qjd.pojo"/>
</typeAliases>
<mappers>
<mapper class="com.qjd.dao.BookMapper"/>
</mappers>
</configuration>
3.3、编写实体类
这里为了简化代码使用lombok插件
@Data //除了有参构造都加入了(set,get,toString...)
@AllArgsConstructor //加入有参构造,无参构造就没有了,需要加入@NoArgsConstructor无参构造
@NoArgsConstructor
public class Books {
private int bookID;
private String bookName;
private int bookCounts;
private String detail;
}
3.4、编写Dao层
3.4.1、编写Dao层的Mapper接口
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);
//查询一本书
Books queryBookById(@Param("bookId") int id);
//查询所有书
List<Books> queryAllBook();
//根据书籍名称模糊查询
List<Books> queryBookName(@Param("keyword") String keyword);
}
3.4.2、编写Mapper接口对应的Mapper.xml
一个
Mapper.xml
对应一个Mapper接口
,要用namespace
绑定上述接口 需要导入MyBatis的包!
- 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">
<mapper namespace="com.qjd.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}
</delete>
<update id="updateBook" parameterType="Books">
update ssmbuild.books set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail} where bookID=#{bookID} ;
</update>
<select id="queryBookById" resultType="Books">
select * from ssmbuild.books where bookID = #{bookId}
</select>
<select id="queryAllBook" resultType="Books">
select * from ssmbuild.books
</select>
<select id="queryBookName" resultType="Books">
select * from ssmbuild.books where bookName like concat( #{keyword},'%')
</select>
</mapper>
3.5、编写Service层
3.5.1、编写Service层的接口
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);
//查询一本书
Books queryBookById(int id);
//查询所有书
List<Books> queryAllBook();
//根据书籍名称模糊查询
List<Books> queryBookName(String keyword);
}
3.5.2、编写Service层的接口实现类
public class BookServiceImpl implements BookService {
//service 调dao层:组合Dao
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> queryBookName(String keyword) {
return bookMapper.queryBookName(keyword);
}
}
OK,到此,底层需求操作编写完毕!
4、Spring层编写
4.1、Spring整合Dao层
在resource目录下新建
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.关联数据库配置文件(这里需要导入xmlns:context)-->
<context:property-placeholder location="classpath:database.properties"/>
<!--2.配置c3p0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)
druid
hikari
-->
<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.sqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--绑定Mybatis的配置文件-->
<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Dao接口包 -->
<property name="basePackage" value="com.qjd.dao"/>
</bean>
</beans>
1、关联数据库配置文件db.properties
,要引入context
约束
2、配置MyBatis
数据源,这里使用第三方的c3p0
,还可以附加一些私有属性
3、创建sqlSessionFactory,在 MyBatis-Spring 中,则使用 SqlSessionFactoryBean 来创建,要配置两个重要属性
configLocation绑定MyBatis核心配置文件
dataSource指定数据源(必要)
4、配置自动扫描包dao,动态实现了dao层接口可以注入到Spring容器中
(在原来我们是创建sqlSessionTemplate对象,然后再创建一个Mapper接口实现类,其中内置sqlSessionTemplate私有对象,通过该对象进行操作)
Java连接池
在Java中开源的数据库连接池有以下几种:
1、C3P0:是一个开放源代码的JDBC连接池,它在Iib目录中与Hibernate一起发布,包括了实现jdbc3和jdbc2扩展规范
说明的Connection和Statement池的DataSources对象。
2、Proxool::是一个Java SQL Driver驱动程序,提供了对选择的其它类型的驱动程序的连接池封装。可以非常简单的移植到
现存的代码中,完全可配置,快速、成熟、健壮。可以透明地为现存的JDBC驱动程序增加连接池功能。
3、Jakarta DBCP:DBCP是一个依赖Jakartacommons-pool对象池机制的数据库连接池。DBCP可以直接的在应用程序中使
用。
4、DDConnectionBroker:是一个简单、轻量级的数据库连接池。
5、DBP00:是一个高效、易配置的数据库连接池。它除了支持连接池应有的功能之外,还包括了一个对象池,使用户能够
开发一个满足自己需求的数据库连接池。
6、XAPool:是一个XA数据库连接池。它实现了javax.sql.XADataSource并提供了连接池工具。
4.2、Spring整合service层
在resource目录下新建
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
https://www.springframework.org/schema/context/spring-context.xsd">
<!--1.扫描service下的包-->
<context:component-scan base-package="com.qjd.service"/>
<!--2.将我们的所有业务类,注入到Spring,可以通过配置,或者注解实现(@Service @Autowired)-->
<bean id="BookServiceImpl" class="com.qjd.service.BookServiceImpl">
<property name="bookMapper" ref="bookMapper"/>
</bean>
<!--3.声明式事务配置-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--注入数据源-->
<property name="dataSource" ref="dataSource"/>
</bean>
<!--4.aop事务支持! 暂时不用-->
</beans>
Spring层的编写我们就搞定了!
4.3、对底层Dao进行测试
首先将配置文件整合到application.xml
中
<?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"/>
</beans>
在test包下的java包下新建一个类MyTest.java
这里使用Junit
单元测试框架
public class MyTest {
@Test
public void test1(){
ApplicationContext context = new ClassPathXmlApplicationContext("application.xml");
BookService bookServiceImpl = (BookService) context.getBean("BookServiceImpl");
for (Books books : bookServiceImpl.queryAllBook()) {
System.out.println(books);
}
}
}
测试结果:
测试成功证明我们的底层代码没有问题! 我们开始SpringMVC层的编写吧~
5、SpringMVC层编写
5.1、配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!--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:我们这里加载的是总的配置文件,之前被这里坑了!-->
<param-value>classpath:application.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--乱码过滤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>
5.2、编写spring-mvc.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"
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 https://www.springframework.org/schema/context/spring-context.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.扫描包:controller-->
<context:component-scan base-package="com.qjd.controller"/>
<!--4.视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
5.3、Spring整合配置文件
在
application.xml
中 整合dao层的spring-dao.xml
、service层的spring-service.xml
和SpringMVC层的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"
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>
通过整合Spring可以用于团队开发!
配置文件,暂时结束!我们开始Controller 和 视图层编写了~
5.4、编写Controller
BookController中实现了5个业务
- 查询全部书籍
- 新增书籍
- 修改书籍
- 删除书籍
- 根据书籍名称查询书籍
@Controller
@RequestMapping("/book")
public class BookController {
//controller 调service层
@Autowired
@Qualifier("BookServiceImpl") //用来指定别名
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";
}
//跳转到新增书籍页面
@RequestMapping("/toAddBook")
public String toAddPage(Model model) {
return "addBook";
}
//新增书籍的请求(点击添加让它添加成功)
@RequestMapping("/addBook")
public String addPaper(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 toUpdateBook(Model model, int id) {
Books books = bookService.queryBookById(id);
System.out.println("toUpdateBook==>" + books);
model.addAttribute("book", books);
return "updateBook";
}
//修改书籍
@RequestMapping("/updateBook")
public String updateBook(Model model, Books book) {
System.out.println("UpdateBook==>" + book);
bookService.updateBook(book);
Books books = bookService.queryBookById(book.getBookID());
model.addAttribute("books", books);
return "redirect:/book/allBook";
}
//删除书籍 RestFul风格回顾
@RequestMapping("/del/{bookId}")
public String deleteBook(@PathVariable("bookId") int id) {
bookService.deleteBookById(id);
return "redirect:/book/allBook";
}
//根据书籍名称模糊查询书籍
@RequestMapping("/queryBook")
public String queryBook(String keyword, Model model) {
List<Books> list = bookService.queryBookName(keyword);
System.err.println("queryBook=>" + list);
if (list.isEmpty()) {
list = bookService.queryAllBook();
model.addAttribute("error", "未查到该书籍");
}
model.addAttribute("list", list);
return "allBook";
}
}
5.5、编写视图层
<!--4.视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
根据我们定义的前缀和后缀在
web/WEB-INF/
目录下新建jsp
包,用来存放我们自定义视图页面
5.5.1、编写首页 index.jsp
<%@ 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="${pageContext.request.contextPath}/book/allBook">点击进入书籍展示页</a>
</h3>
</body>
</html>
5.5.2、书籍列表页面 allbook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--
Created by IntelliJ IDEA.
User: 86134
Date: 2022/7/24
Time: 20:32
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>书籍列表</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap美化页面 -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<%--清除浮动--%>
<div class="row clearfix">
<%--将div盒子以中等大小等分为12份--%>
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>书籍列表 —— 显示所有书籍</small>
</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/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">${error}</span>
<input type="text" name="keyword" class="form-control" placeholder="请输入要查询的书籍名称">
<input type="submit" value="查询" class="btn btn-primary">
</form>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍编号</th>
<th>书籍名字</th>
<th>书籍数量</th>
<th>书籍详情</th>
<th>操作</th>
</tr>
</thead>
<%--书籍从数据库中查询出来,从这个list中遍历出来:foreach--%>
<tbody>
<c:forEach var="book" items="${requestScope.get('list')}">
<tr>
<td>${book.getBookID()}</td>
<td>${book.getBookName()}</td>
<td>${book.getBookCounts()}</td>
<td>${book.getDetail()}</td>
<td>
<a onclick="return confirm('确认修改?')" href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.getBookID()}">更改</a> |
<a onclick="return confirm('确认删除?')" href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
5.5.3、添加书籍页面addBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>新增书籍</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>新增书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/addBook" method="post">
书籍名称:<input type="text" name="bookName" required><br><br><br>
书籍数量:<input type="text" name="bookCounts" required><br><br><br>
书籍详情:<input type="text" name="detail" required><br><br><br>
<input type="submit" value="添加书籍">
</form>
</div>
5.5.4、修改书籍页面 updateBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>修改书籍</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>修改书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/updateBook" 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,既置完毕事务,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--%>
<%--如果不传bookID,提交事务就不成功 --%>
<input type="hidden" name="bookID" value="${book.getBookID()}"/>
书籍名称:<input type="text" name="bookName" value="${book.getBookName()}"/>
书籍数量:<input type="text" name="bookCounts" value="${book.getBookCounts()}"/>
书籍详情:<input type="text" name="detail" value="${book.getDetail() }"/>
<input type="submit" value="提交"/>
</form>
</div>
模糊查询功能:
到此位置,SSM整合项目到此结束了\(@^0^@)/!,
最后推荐一个SSM项目快速搭建的模板:https://github.com/bansui620/SSM-xml-template
标签:xml,SSM,管理系统,int,书籍,---,books,Books,public From: https://www.cnblogs.com/qjds/p/16651179.html