SSM框架整合
作者：互联网
一、运行环境
图书管理系统环境如下：
1、编译器：IDEA 2020
2、数据库：MySQL 8.0.22
3、服务器：Tomcat 9
4、项目管理：Maven 3.6
二、基本配置
2.1、数据库建表
create database ssmbuild;
use ssmbuild;
drop table if exists books;
create table books (
bookId int(10) not null auto_increment primary key comment '书籍编号',
bookName varchar(100) not null comment '书名',
bookCounts int(11) not null comment '数量',
detail varchar(200) not null comment '描述'
) engine=innodb default charset=utf8
insert into books(bookId, bookName, bookCounts, detail) values
(1,'Java',1,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到进牢');
2.2、创建一个maven项目
不需要添加：模板
2.3、导入jar包
一、用到的jar包
1：测试（junit)
2：数据库（mysql）
3：数据源（c3p0）
4：web（servlet、jsp）
5：框架（mybatis、mybatis-spring、springmvc、springjdbc）
6：AOP支持包：aspectjweaver
maven的pom.xml配置
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.22</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.5</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.6</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.3</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.6</version>
</dependency>
2.4、资源配置文件
用于：过滤（html、css、js、jsp等静态资源）， 使编译后，out下的WEB-INF下有（其静态资源）
maven的pom.xml配置如下
<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>
2.5、各层结构：（名称）拟定
xml文件名如下：
applicationContext.xml (作为上下文)
database.properties (作为jdbc参数)
mybatis-config.xml (作为mybatis配置文件)
spring-dao.xml (spring整合持久层)
spring-service.xml (spring整合业务层)
spring-mvc.xml (spring整合表现层)
- applicationContext.xml（初始配置）
<?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>
- mybatis-config.xml（初始配置）
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
</configuration>
三、各层配置（MVC）思想
3.1、持久层（dao）
①、配置database.properties（连接数据库）
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=true
jdbc.username=root
jdbc.password=123456
②、IDE连接数据库
③、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>
<!--mybatis自带日志-->
<!-- <settings>-->
<!-- <setting name="logImpl" value="STDOUT_LOGGING"/>-->
<!-- </settings>-->
<!--起别名-->
<typeAliases>
<package name="com.yyy.pojo"/>
</typeAliases>
<!--mybatis的mapper接口绑定-->
<mappers>
<package name="com.yyy.dao"/>
</mappers>
</configuration>
④、编写数据库（实体类） Books
/**
* Author: 老洋
* Date: 2021/1/22 13:23
*/
package com.yyy.pojo;
import java.util.Objects;
//表叫：Books
public class Books {
private int bookId; //书ID
private String bookName; //书名
private int bookCounts; //书的数量
private String detail; //书的描述
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 + '\'' +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Books books = (Books) o;
return bookId == books.bookId && bookCounts == books.bookCounts && Objects.equals(bookName, books.bookName) && Objects.equals(detail, books.detail);
}
@Override
public int hashCode() {
return Objects.hash(bookId, bookName, bookCounts, detail);
}
}
⑤、编写Dao层的 Mapper接口！
BookMapper 接口
package com.yyy.dao;
import com.yyy.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
//定义书籍：CRUD抽象方法
public interface BookMapper {
//增加一本书
int addBook(Books books);
//查询一本书
Books queryBookById(@Param("bookId") int id);
//查询全部的书
List<Books> queryAllBook();
//更新一本书
int updateBook(Books books);
//删除一本书
int deleteBookById(@Param("bookId") int id);
//查询书籍（通过：书籍名称）
List<Books> selBookByName(@Param("bookName") String bookName);
}
⑥、编写接口对应的 Mapper.xml 文件。
<?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">
<!--1个mapper对应一个接口-->
<mapper namespace="com.yyy.dao.BookMapper">
<!--增加一本书-->
<insert id="addBook" parameterType="books">
insert into ssmbuild.books(bookId, bookName, bookCounts, detail)
values(default, #{bookName}, #{bookCounts}, #{detail});
</insert>
<!--查询一本书-->
<select id="queryBookById" parameterType="int" resultType="books">
select * from ssmbuild.books where bookId = #{bookId}
</select>
<!--查询全部的书-->
<select id="queryAllBook" resultType="books">
select * from ssmbuild.books;
</select>
<!--更新一本书-->
<update id="updateBook" parameterType="books">
update ssmbuild.books
set
bookName = #{bookName},
bookCounts = #{bookCounts},
detail = #{detail}
where
bookId = #{bookId};
</update>
<!--删除一本书-->
<delete id="deleteBookById" parameterType="int">
delete from ssmbuild.books where bookId = #{bookId}
</delete>
<!--查询书籍（通过：书籍名称）-->
<select id="selBookByName" parameterType="string" resultType="books">
select * from ssmbuild.books where bookName = #{bookName}
</select>
</mapper>
3.2、业务层（service）
①、编写Service层的接口
package com.yyy.service;
import com.yyy.pojo.Books;
import java.util.List;
//CRUD
public interface BookService {
//增加一本书
int addBook(Books books);
//查询一本书
Books queryBookById(int id);
//查询全部的书
List<Books> queryAllBook();
//更新一本书
int updateBook(Books books);
//删除一本书
int deleteBookById(int id);
//查询书籍（通过：书籍名称）
List<Books> selBookByName(String bookName);
}
②、编写Service实现类
/**
* Author: 老洋
* Date: 2021/1/23 8:45
*/
package com.yyy.service;
import com.yyy.dao.BookMapper;
import com.yyy.pojo.Books;
import java.util.List;
public class BookServiceImpl implements BookService {
private BookMapper bookMapper;
public void setBookMapper(BookMapper bookMapper) {
this.bookMapper = bookMapper;
}
@Override
public int addBook(Books books) {
return bookMapper.addBook(books);
}
@Override
public Books queryBookById(int id) {
return bookMapper.queryBookById(id);
}
@Override
public List<Books> queryAllBook() {
return bookMapper.queryAllBook();
}
@Override
public int updateBook(Books books) {
return bookMapper.updateBook(books);
}
@Override
public int deleteBookById(int id) {
return bookMapper.deleteBookById(id);
}
@Override
public List<Books> selBookByName(String bookName) {
return bookMapper.selBookByName(bookName);
}
}
3.3、XML配置
①、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="classpath:spring-dao.xml"/>
<import resource="classpath:spring-service.xml"/>
<import resource="classpath:spring-mvc.xml"/>
</beans>
②、Spring整合mybatis
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
https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
<!--1、关联数据库：配置文件-->
<context:property-placeholder location="classpath:database.properties"/>
<!--
2、配置连接池
dbcp：半自动化操作，不能自动连接
c3p0：自动化操作（自动化的加载配置文件， 并且可以自动设置对象中！）
druid:hikari
-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<!-- 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、管理：SqlSessionFactory对象-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--注入数据库连接池：连接池-->
<property name="dataSource" ref="dataSource"/>
<!--配置Mybatis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：扫描的Dao接口包-->
<property name="basePackage" value="com.yyy.dao"/>
</bean>
</beans>
③、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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd">
<!--1、扫描注解下的：包 （必写）-->
<context:component-scan base-package="com.yyy.service"/>
<!--2、管理（业务层）并且实现注入（持久层对象）-->
<bean id="bookService" class="com.yyy.service.BookServiceImpl">
<property name="bookMapper" ref="bookMapper"/>
</bean>
<!--3、（声明式）事务 （保证ACID）-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--4、AOP支持-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="myPointCut" expression="execution(* com.yyy.dao.*.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="myPointCut"/>
</aop:config>
</beans>
利用junit测试：Model(持久层、业务层) 是否已经实现
3.4、控制器、视图层
①、添加web支持，导入jar包
- 添加web支持
- 导入jar包
②、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">
<!--配置：前端分发器-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<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>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--设置：字符编码-->
<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>
<!--设置session失效时间：15分钟-->
<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>
④、spring整合视图层
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
https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!--1、配置注解驱动：代替HandlerMapping和HandlerAdapter的书写-->
<mvc:annotation-driven/>
<!--2、用默认的servlet处理器，不去解析静态资源，直接用其url-->
<mvc:default-servlet-handler/>
<!--3、扫描：控制层注解-->
<context:component-scan base-package="com.yyy.controller"/>
<!--4、配置视图解析器-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
运行tomcat看：是否能运行
整理
③、查询全部书籍
控制层：查询全部书籍（方法1）
@Controller
@RequestMapping("/book")
public class BookController {
//DI注入：业务层对象
@Autowired
@Qualifier("bookService")
private BookService bookService;
//查询所有书籍
@RequestMapping("/allBook")
public String list(Model model){
List<Books> books = bookService.queryAllBook();
model.addAttribute("list", books);
return "showAllBook";
}
}
}
视图层：显示（全部书籍）
- 首页：index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>$Title$</title>
<style>
a{
text-decoration: none;
color: black;
font-size: 20px;
}
h3{
width: 180px;
height: 38px;
background: aquamarine;
margin: 300px auto;
text-align: center;
line-height: 38px;
border-radius: 5px;
}
</style>
</head>
<body>
<a href="${pageContext.request.contextPath}/book/allBook"><h3>跳转到书籍页面</h3></a>
</body>
</html>
- 书籍列表页面 showAllBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>书籍展示页面</title>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">
</head>
<body>
<!--显示书籍-->
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>书籍列表 ----- 显示所有书籍</small>
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍编号</th>
<th>书籍名称</th>
<th>书籍数量</th>
<th>书籍详情</th>
</tr>
</thead>
<tbody>
<c:forEach items="${list}" var="book">
<tr>
<td>${book.bookId}</td>
<td>${book.bookName}</td>
<td>${book.bookCounts}</td>
<td>${book.detail}</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
④、添加书籍
控制层：添加书籍（方法2）
//添加书籍页面
@RequestMapping("/addBookPage")
public String addBookPage(){
return "toAddBook";
}
//添加书籍
//addBook(@RequestParam("bookName") String bookName, @RequestParam("bookCounts") String bookCounts, @RequestParam("detail") String detail, Model model)
//若是：表单提交的（属性Name == pojo类的属性名）， 并且存在set方法， 那么会：自动填充（对象）
@RequestMapping("/addBook")
public String addBook(Books book){
System.out.println("addBook(Books book) ->" + book);
bookService.addBook(book);
//return "" 经过视图解析器，跳转页面； return "redirect:/" 跳转的是控制器
return "redirect:/book/allBook";
}
视图层：（添加书籍）
- 添加书籍页面：addBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>添加书籍页面</title>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/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>添加书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/addBook" method="get">
<div class="form-group">
<label for="bookName">书籍名称</label>
<input type="text" class="form-control" id="bookName" name="bookName" required>
</div>
<div class="form-group">
<label for="bookCounts">书籍数量</label>
<input type="text" class="form-control" id="bookCounts" name="bookCounts" required>
</div>
<div class="form-group">
<label for="detail">书籍描述</label>
<input type="text" class="form-control" id="detail" name="detail" required>
</div>
<button type="submit" class="btn btn-default">确认添加</button>
</form>
</div>
</body>
</html>
⑤、修改书籍
控制层：修改书籍（方法3）
@RequestMapping("/updBookPage")
public String updBookPage(int id, Model model){
System.out.println("updBookPage => " + id);
Books book = bookService.queryBookById(id);
model.addAttribute("QBook", book);
return "updPage";
}
//修改书籍
@RequestMapping("/updBook")
public String updBook(Books book){
System.out.println("updBook => " + book);
bookService.updateBook(book);
return "redirect:/book/allBook";
}
视图层：（修改书籍）
- 修改书籍页面 updateBook.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>修改书籍页面</title>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>修改书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/updBook" method="get">
<input type="hidden" name="bookId" value="${QBook.bookId}">
<div class="form-group">
<label for="bookName">书籍名称</label>
<input type="text" class="form-control" id="bookName" name="bookName" value="${QBook.bookName}" required>
</div>
<div class="form-group">
<label for="bookCounts">书籍数量</label>
<input type="text" class="form-control" id="bookCounts" name="bookCounts" value="${QBook.bookCounts}" required>
</div>
<div class="form-group">
<label for="detail">书籍描述</label>
<input type="text" class="form-control" id="detail" name="detail" value="${QBook.detail}" required>
</div>
<button type="submit" class="btn btn-default">确认修改</button>
</form>
</div>
</body>
</html>
⑥、删除书籍
控制层：删除书籍（方法4）
//删除书籍
@RequestMapping(value = "/delBook")
public String delBook(int id){
System.out.println("delBook(int id) 参数id = " + id);
bookService.deleteBookById(id);
//重定向到：显示全部书籍页面
return "redirect:/book/allBook";
}
视图层：最尾代码（留出）
⑤、通过名称查询书籍
控制层：通过名称查询书籍（方法5）
@RequestMapping("/queryBook")
public String QueryBook(String queryBookName, Model model){
System.out.println("QueryBook =>" + queryBookName);
List<Books> list = bookService.selBookByName(queryBookName);
if(!list.isEmpty()){
model.addAttribute("list", list);
}else{
model.addAttribute("list", bookService.queryAllBook());
model.addAttribute("error", "未查询到（该名称）书籍");
}
return "showAllBook";
}
视图层页面：showAllBook.jsp (有部分重叠)
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>书籍展示页面</title>
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">
</head>
<body>
<!--显示书籍-->
<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>
<!--添加书籍页面-->
<div class="row">
<div class="col-md-4 column">
<%--toAddBook--%>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/addBookPage">新增书籍</a>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示全部书籍</a>
</div>
<!--查询书籍-->
<div class="col-md-2 column"></div>
<div class="col-md-6 column">
<form action=${pageContext.request.contextPath}/book/queryBook method="post" style="float: right" class="form-inline">
<label class="control-label" style="color: palevioletred">${error}</label>
<input type="text" name="queryBookName" class="form-control" placeholder="请输入：你要查询的书籍">
<input type="submit" value="查询" class="btn btn-primary">
</form>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12">
<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>
<tbody>
<c:forEach items="${list}" var="book">
<tr>
<td>${book.bookId}</td>
<td>${book.bookName}</td>
<td>${book.bookCounts}</td>
<td>${book.detail}</td>
<td>
<a href="${pageContext.request.contextPath}/book/updBookPage?id=${book.bookId}">修改</a>
|
<a href="${pageContext.request.contextPath}/book/delBook?id=${book.bookId}">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
标签：return,bookId,框架,int,bookName,书籍,SSM,整合,public 来源： https://www.cnblogs.com/yangzaikongzhongfei/p/14342575.html