Ajax的简介了解学习

SpringMVC：整合SSM

环境要求

环境：

• IDEA
• MySQL 5.7.32
• Tomcat 9
• Maven 3.6

要求：

• 需要熟练掌握MySQL数据库，Spring，JavaWeb及MyBatis知识，简单的前端知识；

数据库创建

创建一个存放书籍书籍的数据库表

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',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');

基本环境搭建

1、新建一Maven项目！ssmbuild ， 添加web的支持

2、导入相关的pom依赖！

<!--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>4.13</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  C3p0：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>3.5.2</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.3</version>
    </dependency>

    <!--Spring-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.3.4</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.1.9.RELEASE</version>
    </dependency>
</dependencies>

3、静态资源导出问题：

<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>

4、在IDEA中连接数据库

5、建立基本的框架

• com.li.pojo
• com.li.dao
• com.li.service
• com.li.controller
• 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(spring的核心配置)

<?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层编写

1、数据库配置文件 database.properties

注意这个的jdbc. 不能省略 不然报错

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=ljy123456

2、IDEA关联数据库

3、编写myBatis的核心文件

<?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>

    <!--配置数据源。交给了spring去做-->
    <typeAliases>
        <package name="com.li.pojo"/>
    </typeAliases>

    <mappers>
        <mapper class="com.li.dao.BookMapper"/>
    </mappers>
</configuration>

4、编写数据库对应的实体类

如果用注解需要导入lombok包和下载插件

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Books {
    private int bookID;
    private String boolName;
    private int boolCounts;
    private String detail;

}

5、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);
    //查询全部的书
    List<Books> queryAllBook();
}

6、编写接口对应的xml文件，然后导入MyBatis包

<?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.li.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>
</mapper>

7、编写Service层的接口和实现类

接口

package com.li.service;

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

import java.util.List;

public interface BookServler {
    //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);

    //查询全部的书
    List<Books> queryAllBook();
}

实现类

package com.li.service;

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

import java.util.List;

public class BookServiceImpl implements BookServler {

    //Service调dao层： 组合dao
    private BookMapper bookMapper;

    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();
    }
}

到此处，我们就把MyBatis层的需求编写完成了

接下来就是Spring层的编写了。

Spring层

配置Spring整合MyBatis这里使用的是C3P0连接池

2、我们去编写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，不能自动连接
    c3o0:自动化操作，自动化的加载配置文件，并且可以自动设置到对象中
    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:mybaits-config.xml"/>
    </bean>

    <!--配置dao接口扫描宝，动态的实现了dao接口可以注入到Spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--注入sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--扫描的dao包-->
        <property name="basePackage" value="com.li.dao"/>
    </bean>
</beans>

3、spring整合service层

<?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，不能自动连接
    c3o0:自动化操作，自动化的加载配置文件，并且可以自动设置到对象中
    druid；         hikari:
    -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!--配置连接池属性-->
        <property name="driverClass" value="${driver}"/>
        <property name="jdbcUrl" value="${url}"/>
        <property name="user" value="${username}"/>
        <property name="password" value="${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:mybaits-config.xml"/>
    </bean>

    <!--配置dao接口扫描宝，动态的实现了dao接口可以注入到Spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--注入sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--扫描的dao包-->
        <property name="basePackage" value="com.li.dao"/>
    </bean>
</beans>

spring层OK，spring就是整合dao、service的容器

SpringMVC层

添加成为web项目

然后配置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">

    <!--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>

    <!--乱码过滤-->
    <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默认过期时间-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>
</web-app>

配置Spring-MVC.xml资源文件

<?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:mvc="http://www.springframework.org/schema/mvc"
       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/mvc
       https://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.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.li.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>

Spring配置文件整合，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">

    <import resource="spring-dao.xml"/>
    <import resource="spring-service.xml"/>
    <import resource="spring-mvc.xml"/>

</beans>

这样就配置OK 接下来编写Controller与视图层

Controller与视图层

1、BookController 类编写 ， 方法一：查询全部书籍

@Controller
@RequestMapping("/book")
public class BookController {
    //controller 调service层
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookServlec;

    //查询全部的书籍，并且返回到一个书籍展示页面
    @RequestMapping("allBook")
    public String list(Model model) {
        List<Books> list = bookServlec.queryAllBook();

        model.addAttribute("list", list);
        return "allBook";
    }
}

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: black;
            size: 18px;
        }

        h3 {
            width: 180px;
            height: 38px;
            margin: 100px auto;
            text-align: center;
            line-height: 38px;
            background: antiquewhite;
            border-radius: 9px;
        }
    </style>
</head>
<body>
<h3>
    <a href="${pageContext.request.contextPath}/book/allBook">进入到展示页面</a>
</h3>
</body>
</html>

3、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>书籍展示页面</title>
    <%--BootStap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">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表---所有书籍</small>
                </h1>
            </div>

        </div>
    </div>
    <div class="row ui-helper-clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">\
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名称</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                </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="${list}">
                    <tr>
                        <td>${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>

4、BookController 类编写 ， 方法二：添加书籍

    //添加书籍的请求
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        System.out.println("addbook=>" + books);
        bookServlec.addBook(books);
        return "redirect:/book/allBook";  //重定向到我们的@RequestMapping("/allBook")的请求‘
    }
}

5、添加书籍页面：addBook.jsp

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

    <%--BootStap美化界面--%>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <div class="container">
        <div class="row clearfix">
            <div class="col-md-12 column">
                <div class="page-header">
                    <h1>
                        <small>新增书籍---所有书籍</small>
                    </h1>
                </div>
            </div>
        </div>
        <form action="${pageContext.request.contextPath}/book/addBook" method="post">
            <div class="form-group">
                <label for="bname">书籍名称:</label>
                <input type="text" name="bookName" class="flex-content" id="bname">
            </div>
            <div class="form-group">
                <label>书籍数量:</label>
                <input type="text" name="bookCounts" class="flex-content" required>
            </div>
            <div class="form-group">
                <label>书籍描述:</label>
                <input type="text" name="detail" class="flex-content" required>
            </div>
            <div class="form-group">
                <input type="submit" class="form-control" value="添加" required>
            </div>
        </form>
    </div>
</head>
<body>
</body>
</html>

6、方法三：修改书籍

//跳转到修改页面
@RequestMapping("/toUpdate")
public String toUpdatePaper(int id, Model model) {
    Books books = bookService.queryBookByID(id);
    model.addAttribute("QBook", books);
    return "updateBook";
}

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

7、修改书籍的页面 updateBook.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改书籍</title>
    <%--BootStap美化界面--%>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <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="${pageContext.request.contextPath}/book/updateBook" method="post">
            <%--出现的问题，我们提交了修改的SQL请求，但是修改失败--%>
            <%--前端传递隐藏域--%>
            <input type="hidden" name="bookID" value="${QBook.bookID}">
            <div class="form-group">
                <label for="bname">书籍名称:</label>
                <input type="text" name="bookName" class="flex-content" id="bname" required value="${QBook.bookName}">
            </div>
            <div class="form-group">
                <label>书籍数量:</label>
                <input type="text" name="bookCounts" class="flex-content" required value="${QBook.bookCounts}">
            </div>
            <div class="form-group">
                <label>书籍描述:</label>
                <input type="text" name="detail" class="flex-content" required value="${QBook.detail}">
            </div>
            <div class="form-group">
                <input type="submit" class="form-control" value="修改" required>
            </div>
        </form>
    </div>
</head>
<body>
</body>
</html>

9、在spring-service.xml中配置AOP事务支持

<!--4.AOP横切事务支持-->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
        <tx:method name="*" propagation="REQUIRED"/>
    </tx:attributes>
</tx:advice>
<aop:config>
    <aop:pointcut id="txPointCup" expression="execution(* com.li.dao.*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCup"/>
</aop:config>

10、在mybaits-config.xml添加日志

<settings>
    <!--标准的日志工厂实现-->
    <setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>

11、删除书籍

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

完整后的jsp页面

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>首页</title>
    <style>
        a {
            text-decoration: none;
            color: black;
            size: 18px;
        }

        h3 {
            width: 180px;
            height: 38px;
            margin: 100px auto;
            text-align: center;
            line-height: 38px;
            background: antiquewhite;
            border-radius: 9px;
        }
    </style>
</head>
<body>
<h3>
    <a href="${pageContext.request.contextPath}/book/allBook">进入到展示页面</a>
</h3>
</body>
</html>

allBook.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>书籍展示页面</title>
    <%--BootStap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">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表---所有书籍</small>
                </h1>
            </div>
        </div>
        <div class="row">
            <div class="col-md-4 cloumn">
                <%--toAddBook--%>
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAllBook">添加书籍</a>
            </div>
        </div>
    </div>
    <div class="row ui-helper-clearfix">
        <div class="col-md-12 column">
            <table class="table table-hover table-striped">
                <thead>
                <tr>
                    <th>书籍编号</th>
                    <th>书籍名称</th>
                    <th>书籍数量</th>
                    <th>书籍详情</th>
                    <th>操作</th>
                </tr>
                </thead>
                <%--书籍从数据库中查询出来，从这个list中遍历出来：foreach--%>
                <tbody>
                <c:forEach var="book" items="${list}">
                    <tr>
                        <td>${book.bookID}</td>
                        <td>${book.bookName}</td>
                        <td>${book.bookCounts}</td>
                        <td>${book.detail}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/toUpdate?id=${book.bookID} ">修改</a>
                            &nbsp;|&nbsp;
                            <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>


</body>
</html>

addBook.jsp

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

    <%--BootStap美化界面--%>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <div class="container">
        <div class="row clearfix">
            <div class="col-md-12 column">
                <div class="page-header">
                    <h1>
                        <small>新增书籍---所有书籍</small>
                    </h1>
                </div>
            </div>
        </div>
        <form action="${pageContext.request.contextPath}/book/addBook" method="post">
            <div class="form-group">
                <label for="bname">书籍名称:</label>
                <input type="text" name="bookName" class="flex-content" id="bname">
            </div>
            <div class="form-group">
                <label>书籍数量:</label>
                <input type="text" name="bookCounts" class="flex-content" required>
            </div>
            <div class="form-group">
                <label>书籍描述:</label>
                <input type="text" name="detail" class="flex-content" required>
            </div>
            <div class="form-group">
                <input type="submit" class="form-control" value="添加" required>
            </div>
        </form>


    </div>

</head>
<body>

</body>
</html>

updateBook.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>修改书籍</title>

    <%--BootStap美化界面--%>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <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--%>
            <%--前端传递隐藏域--%>

            <input type="hidden" name="bookID" value="${QBook.bookID}">
            <div class="form-group">
                <label for="bname">书籍名称:</label>
                <input type="text" name="bookName" class="flex-content" id="bname" required value="${QBook.bookName}">
            </div>
            <div class="form-group">
                <label>书籍数量:</label>
                <input type="text" name="bookCounts" class="flex-content" required value="${QBook.bookCounts}">
            </div>
            <div class="form-group">
                <label>书籍描述:</label>
                <input type="text" name="detail" class="flex-content" required value="${QBook.detail}">
            </div>
            <div class="form-group">
                <input type="submit" class="form-control" value="修改" required>
            </div>
        </form>


    </div>

</head>
<body>

</body>
</html>

添加搜索功能

1、需要修改前端allBook页面

注意加在对应的位置

<div class="container">
    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表---所有书籍</small>
                </h1>
            </div>
        </div>
        <div class="row">
            <div class="col-md-4 cloumn">
                <%--toAddBook--%>
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAllBook">添加书籍</a>
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allBook">显示全部书籍</a>
            </div>
            <div class="col-md-4 cloumn">
                <%--查询书籍--%>
                <form action="${pageContext.request.contextPath}/book/queryBook" method="post" class="form-inline"
                      style="float:right">
                    <span style="color: red">${error}</span>
                    <input type="text" name="queryBookName" class="form-control" placeholder="请输入要查询的书籍名称">
                    <input type="submit" value="提交" class="btn btn-primary">
                </form>
            </div>
        </div>
    </div>

2、dao层的接口BookMapper

//搜索书籍
Books queryBookByName(@Param("bookName") String bookName);

3、BookMapper.xml

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

4、业务层BookService接口

Books queryBookByName(String bookName);

5、BookServiceImpl

@Override
public Books queryBookByName(String bookName) {

    return bookMapper.queryBookByName(bookName);
}

6、最后是Controller类

 //查询书籍
    @RequestMapping("/queryBook")
    public String queryBook(String queryBookName, Model model) {
        Books books = bookService.queryBookByName(queryBookName);
        List<Books> list = new ArrayList<Books>();
        list.add(books);

        if (books == null) {
            list = bookService.queryAllBook();
            model.addAttribute("error", "未查到");
        }

        model.addAttribute("list", list);
        return "allBook";
    }