SSM整合案例：图书管理系统

SSM整合案例：图书管理系统

Spring + SpringMVC + MyBatis+JSP+Servlet+简单前端知识

环境要求：

IDEA
MySQL 5.7.19
Tomcat 9
Maven 3.6

1、搭建数据库环境

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) PRIMARY KEY 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'

);

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');

SELECT * FROM books;

数据库连接 url：

jdbc:mysql:/主机:3306/数据库名称?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC

注：如果使用的是MySQL8.0+，url连接时增加一个时区的配置：serverTimezone=Asia/Shanghai

2、基本环境搭建

2.1、新建一个Maven项目，起名为：ssmbuild，添加web的支持

2.2、导入pom的相关依赖

<!--导入依赖 junit 数据库连接 数据库连接池 c3p0 Spring MyBatis mybatis-spring servlet jsp jstl-->

<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>5.1.47</version>

    </dependency>

    <!-- 数据库连接池 -->

    <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->

    <dependency>

        <groupId>com.mchange</groupId>

        <artifactId>c3p0</artifactId>

        <version>0.9.5.5</version>

    </dependency>

    <!--Spring-->

    <dependency>

        <groupId>org.springframework</groupId>

        <artifactId>spring-webmvc</artifactId>

        <version>5.2.2.RELEASE</version>

    </dependency>

    <dependency>

        <groupId>org.springframework</groupId>

        <artifactId>spring-jdbc</artifactId>

        <version>5.0.3.RELEASE</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>2.0.3</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>

    <!--lombok-->

    <dependency>

        <groupId>org.projectlombok</groupId>

        <artifactId>lombok</artifactId>

        <version>1.18.10</version>

    </dependency>

</dependencies>

2.3、Maven静态资源过滤设置

<!--静态资源过滤问题-->

<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>

2.4、建立基本结构和配置框架！

java包：

com.rainszj.pojo
com.rainszj.dao
com.rainszj.service
com.rainszj.controller

resources包：

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>

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

        http://www.springframework.org/schema/beans/spring-beans.xsd">

</beans>

database.properties

3、MyBatis层编写

3.1、pojo包

Books

package com.rainszj.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;

}

3.2、dao包

BookMapper

package com.rainszj.dao;

import com.rainszj.pojo.Books;

import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface BookMapper {

    /**

     * 增加一本书

     *

     * @param books

     * @return

     */

    int addBook(Books books);

    /**

     * 删除一本书

     *

     * @param id

     * @return

     */

    int deleteBook(@Param("bookId") int id);

    /**

     * 修改一本书

     *

     * @param book

     * @return

     */

    int updateBook(Books book);

    /**

     * 根据 id 查询一本书

     *

     * @param id

     * @return

     */

    Books queryBookById(@Param("bookId") int id);

    /**

     * 查询所有的书

     *

     * @return

     */

    List<Books> queryAllBook();

}

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">

<mapper namespace="com.rainszj.dao.BookMapper">

    <insert id="addBook" parameterType="Books">

        insert into ssmbuild.books (bookName, bookCounts, detail)

        values (#{bookName}, #{bookCounts}, #{detail})

    </insert>

    <delete id="deleteBook" 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>

</mapper>

3.3、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>

    <!--配置数据源，交给Spring-->

    <!--其别名-->

    <typeAliases>

        <package name="com.rainszj.pojo"/>

    </typeAliases>

    <!--注册Mapper-->

    <mappers>

        <mapper class="com.rainszj.dao"/>

    </mappers>

</configuration>

database.properties

jdbc.driver=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC

jdbc.username=root

jdbc.password=root

3.4、service包

BookService

package com.rainszj.service;

import com.rainszj.pojo.Books;

import java.util.List;

public interface BookService {

    /**

     * 增加一本书

     *

     * @param books

     * @return

     */

    int addBook(Books books);

    /**

     * 删除一本书

     *

     * @param id

     * @return

     */

    int deleteBook(int id);

    /**

     * 修改一本书

     *

     * @param book

     * @return

     */

    int updateBook(Books book);

    /**

     * 根据 id 查询一本书

     *

     * @param id

     * @return

     */

    Books queryBookById(int id);

    /**

     * 查询所有的书

     *

     * @return

     */

    List<Books> queryAllBook();

}

BookServiceImpl

package com.rainszj.service;

import com.rainszj.dao.BookMapper;

import com.rainszj.pojo.Books;

import java.util.List;

public class BookServiceImpl implements BookService {

    // service层调dao层，使用组合dao

    private BookMapper bookMapper;

    // 使用Spring管理，实现set注入

    public void setBookMapper(BookMapper bookMapper) {

        this.bookMapper = bookMapper;

    }

    public int addBook(Books books) {

        return bookMapper.addBook(books);

    }

    public int deleteBook(int id) {

        return bookMapper.deleteBook(id);

    }

    public int updateBook(Books book) {

        return bookMapper.updateBook(book);

    }

    public Books queryBookById(int id) {

        return queryBookById(id);

    }

    public List<Books> queryAllBook() {

        return queryAllBook();

    }

}

4、Spring层编写

4.1、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-->

    <context:property-placeholder location="classpath:database.properties"/>

    <!--2.连接池

        dbcp:半自动化操作（不能自动加载文件）

        c3p0：自动化操作（自动加载配置文件，并且自动设置到对象中）

        druid，hikari

    -->

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

        <!--配置连接池的属性-->

        <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">

        <!--注入数据库连接池-->

        <property name="dataSource" ref="dataSource"/>

        <!--配置mybatis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.rainszj.dao"/>

    </bean>

</beans>

4.2、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相关的bean -->

    <context:component-scan base-package="com.rainszj.service"/>

    <!--2.将我们所有的业务类，注入到Spring中，可以通过配置或者注解实现-->

    <bean id="BookServiceImpl" class="com.rainszj.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-->

</beans>

5、Spring MVC层编写

5.1、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">

    <!--注册DispatchServlet-->

    <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>

    <!--Spring MVC内置的过滤器-->

    <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、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

       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.自动扫描包：controller-->

    <context:component-scan base-package="com.rainszj.controller"/>

    <!--4.视图解析器-->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/jsp/"/>

        <property name="suffix" value=".jsp"/>

    </bean>

</beans>

底层代码编写完毕，下面只需要编写 Controller 层和视图层。

6、查询书籍功能

6.1、BookController 类编写，方法一：查询全部书籍

@Controller

@RequestMapping("/book")

public class BookController {

    // Controller 层调 Service 层

    @Autowired

    @Qualifier("BookServiceImpl")

    private BookService bookService;

    /**

     * 查询所有书籍

     * @param model

     * @return

     */

    @RequestMapping("/allBook")

    public String list(Model model) {

        List<Books> list = bookService.queryAllBook();

        model.addAttribute("list", list);

        return "allBook";

    }

}

6.2、编写首页 index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>首页</title>

    <style>

        a {

            text-decoration: none;

            color: #000;

            font-size: 18px;

        }

        h3 {

            width: 180px;

            height: 38px;

            margin: 200px auto;

            text-align: center;

            line-height: 38px;

            background-color: deepskyblue;

            border-radius: 5px;

        }

    </style>

</head>

<body>

<h3>

    <a href="${pageContext.request.contextPath}/book/allBook">点击到书籍列表</a>

</h3>

</body>

</html>

6.3、添加书籍列表页面 allbook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>书籍列表</title>

    <%--BootStrap 美化界面--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

    <style>

    </style>

</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 clearfix">

        <div class="col-md-12 column">

            <table class="table table-hover table-striped">

                <thread>

                    <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>

                </thread>

                <tbody>

                    <c:forEach var="book" items="${requestScope.get('list')}">

                        <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>

7、添加书籍

7.1、BookController 类编写，方法二：添加书籍

/**

 * 跳转到修改页面，并根据 id回显数据

 *

 * @param id    Book id

 * @param model 传给前端的数据

 * @return

 */

@RequestMapping("/toUpdate/{bookId}")

public String toUpdatePaper(@PathVariable("bookId") int id, Model model) {

    Books book = bookService.queryBookById(id);

    model.addAttribute("QBook", book);

    System.out.println(book);

    return "updateBook";

}

/**

 * 处理修改请求

 *

 * @param book 前端传递的对象

 * @return

 */

@RequestMapping("/updateBook")

public String updateBook(Books book) {

    int res = bookService.updateBook(book);

    System.out.println(res);

    if (res > 0) {

        System.out.println("updateBook=>执行成功" + book);

    }

    return "redirect:/book/allBook";

}

7.2、在allBook.jsp中添加新增连接

<div class="row">

    <div class="col-md-4 column">

        <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a>

    </div>

</div>

7.3、添加书籍页面：addBook.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>添加书籍</title>

    <%--BootStrap 美化界面--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <%--row clearfix 清除浮动--%>

    <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="post">

        <div class="form-group">

            <label for="bookName">书籍名称</label>

            <input type="text" name="bookName" class="form-control" id="bookName" required>

        </div>

        <div class="form-group">

            <label for="bookCounts">书籍数量</label>

            <input type="text" name="bookCounts" class="form-control" id="bookCounts" required>

        </div>

        <div class="form-group">

            <label for="detail">书籍描述</label>

            <input type="text" name="detail" class="form-control" id="detail" required>

        </div>

        <input type="submit" class="form-control" value="添加">

    </form>

</div>

</body>

</html>

8、修改和删除书籍

8.1、BookController 类编写，方法三：修改书籍和删除书籍

    /**

     * 跳转到修改页面，并根据 id回显数据

     *

     * @param id    Book id

     * @param model 传给前端的数据

     * @return

     */

    @RequestMapping("/toUpdate/{bookId}")

    public String toUpdatePaper(@PathVariable("bookId") int id, Model model) {

        Books book = bookService.queryBookById(id);

        model.addAttribute("QBook", book);

        System.out.println(book);

        return "updateBook";

    }

    /**

     * 处理修改请求

     *

     * @param book 前端传递的对象

     * @return

     */

    @RequestMapping("/updateBook")

    public String updateBook(Books book) {

        int res = bookService.updateBook(book);

        System.out.println(res);

        if (res > 0) {

            System.out.println("updateBook=>执行成功" + book);

        }

        return "redirect:/book/allBook";

    }

    /**

     * 删除一本书

     * @param id

     * @return

     */

    @RequestMapping("/deleteBook/{bookId}")

    public String deleteBook(@PathVariable("bookId") int id) {

        bookService.deleteBook(id);

        return "redirect:/book/allBook";

    }

8.2、在allBook.jsp中新增修改和删除连接

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>书籍列表</title>

    <%--BootStrap 美化界面--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <%--row clearfix 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>

    <div class="row">

        <div class="col-md-4 column">

            <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a>

        </div>

    </div>

    <div class="row clearfix">

        <div class="col-md-12 column">

            <%--

            table-hover：    鼠标滑过时，变色

            table-striped：  每一行显示不同的颜色

            --%>

            <table class="table table-hover table-striped">

                <thread>

                    <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>

                </thread>

                <tbody>

                <c:forEach var="book" items="${requestScope.get('list')}">

                    <tr>

                        <td>${book.bookID}</td>

                        <td>${book.bookName}</td>

                        <td>${book.bookCounts}</td>

                        <td>${book.detail}</td>

                        <td>

                            <%--传统方式--%>

<%--

                            <a href="${pageContext.request.contextPath}/book/toUpdate?id=${book.bookID}">修改</a>

                            &nbsp; | &nbsp;

                            <a href="${pageContext.request.contextPath}/book/deleteBook?id=${book.bookID}">删除</a>

--%>

                            <%--RestFul风格--%>

                            <a href="${pageContext.request.contextPath}/book/toUpdate/${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>

</div>

</body>

</html>

8.3、添加修改书籍页面 updateBook.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>修改书籍</title>

    <%--BootStrap 美化界面--%>

    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

</head>

<body>

<div class="container">

    <%--row clearfix 清除浮动--%>

    <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">

        <%--提交隐藏域，用于提交要修改书的 id--%>

        <input type="hidden" name="bookID" value="${QBook.bookID}">

        <div class="form-group">

            <label for="bookName">书籍名称</label>

            <input type="text" name="bookName" class="form-control" id="bookName" value="${QBook.bookName}">

        </div>

        <div class="form-group">

            <label for="bookCounts">书籍数量</label>

            <input type="text" name="bookCounts" class="form-control" id="bookCounts" value="${QBook.bookCounts}">

        </div>

        <div class="form-group">

            <label for="detail">书籍描述</label>

            <input type="text" name="detail" class="form-control" id="detail" value="${QBook.detail}">

        </div>

        <input type="submit" class="form-control" value="修改">

    </form>

</div>

</body>

</html>

9、搜索功能

9.1、在allBook.jsp中添加查询书籍功能

    <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">查询所有书籍</a>

        </div>

        <div class="col-md-8 column">

            <%--查询书籍--%>

            <form action="${pageContext.request.contextPath}/book/queryBook" method="post" class="form-inline" style="float: right;">

                <span style="color: red;font-weight: bold;">${error}</span>

                <input type="text" class="form-control" name="queryBookName" placeholder="请输入要查询的书籍名称"

                       style="width: 300px;">

                <input type="submit" class="btn btn-primary" value="查询">

            </form>

        </div>

    </div>

9.2、在BookController类中编写处理查询书名的请求

/**

 * 根据书名查询一本书

 *

 * @param queryBookName

 * @param model

 * @return

 */

@RequestMapping("/queryBook")

public String queryBook(String queryBookName, Model model) {

    List<Books> list = bookService.queryBookByName(queryBookName);

    // System.err.println(list);

    if (list.isEmpty()) {

        list = bookService.queryAllBook();

        model.addAttribute("error", "未找到！");

    }

    model.addAttribute("list", list);

    return "allBook";

}

9.3、编写BookMapper接口

/**

 * 根据书名查询一本书

 *

 * @param bookName

 * @return

 */

List<Books> queryBookByName(@Param("bookName") String bookName);

9.4、在BookMapper.xml编写Sql

<select id="queryBookByName" resultType="Books">

    select * from ssmbuild.books where bookName = #{bookName}

</select>

9.5、编写BookServicer接口

/**

 * 根据书名查询一本书

 *

 * @param bookName

 * @return

 */

List<Books> queryBookByName(String bookName);

9.6、编写BookServicerImpl

public List<Books> queryBookByName(String bookName) {

    return bookMapper.queryBookByName(bookName);

}

10、项目结构：

11、注意事项

在 web.xml 中使用总的Spring配置文件！Spring MVC的内置过滤器要设置它的 encoding 属性！

CharacterEncodingFilter 源码中的 encoding 属性

注意静态资源过滤问题！

在项目的发布环境中添加lib依赖！

确保Spring Spring MVC 的配置文件在一个上下文中，将他们关联在一起！

MapperScannerConfigurer

Mybatis MapperScannerConfigurer 自动扫描将Mapper接口生成代理注入到Spring