SSM框架整合+案例

SSM框架的整合步骤以及案例演示,我已经总结完了。
希望大家,除了一些特别固定的配置文件外,有一个简单的需求,都可以做到手动配置实现。这样对大家对SSM框架会有进一步的了解,多配置几遍会更加熟悉这个流程。
就这个简单的整合,我已经在Eclipse上和Idea上都配过不止一遍,每一次都会有不同的问题,都会有不同的发现,只有多练习才能知道哪里有缺陷,劝大家不要眼高手低。。
觉得对你有帮助的,希望多多支持博主,记得点赞关注哦~~

一、整合SSM框架案例

1、环境要求:

环境:

  • IDEA
  • MySQL 5.7
  • Tomcat 8.5
  • Maven 3.6.1

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;

2、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) 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');

3、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!
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.biubiubiu</groupId>
    <artifactId>ssmbuild</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- 依赖: junit,数据库驱动,连接池,servlet,jsp,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>5.1.47</version>
        </dependency>
        <!-- 数据库连接池 c3p0 -->
        <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>2.0.2</version>
        </dependency>

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

        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.8</version>
        </dependency>
        <!-- aop横切 -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.7</version>
        </dependency>
    </dependencies>

    <!-- 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>

</project>
  1. Maven资源过滤设置(已在上边完整pom文件中配置,这里再贴一下)
<!-- 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>
  1. 建立基本结构和配置框架!
  • com.biubiubiu.pojo
  • com.biubiubiu.dao
  • com.biubiubiu.service
  • com.biubiubiu.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
<?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>

4、Mybatis层编写

  • 1.数据库配置文件 database.properties
jdbc.driver=com.mysql.jdbc.Driver
#如果是mysql8.0以上的版本,需要增加时区设置&serverTimeZone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
  • 2.IDEA关联数据库
  • 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>

	    <!--引入日志,log4j  有时候很烦。。我这里就关了。。-->
<!--
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>
-->

    <!-- 配置数据源 -->
    <typeAliases>
        <package name="com.biubiubiu.pojo"/>
    </typeAliases>

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

</configuration>
  • 4.编写数据库对应的实体类 com.biubiubiu.pojo.Books
    使用lombok插件!
package com.biubiubiu.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

/**
 * @author biubiubiu
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {

    private int bookID;
    private String bookName;
    private int bookCounts;
    private String detail;

}

  • 5.编写Dao层的 Mapper接口!
package com.biubiubiu.dao;

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

import java.util.List;

/**
 * @author biubiubiu
 */
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);

    //查询全部书籍
    List<Books> queryAllBook();

    //通过书名查找书籍
    Books queryBookByName(@Param("bookName") String bookName);

}

  • 6.编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包;
<?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.biubiubiu.dao.BookMapper">

    <!--增加一个Book-->
    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books (bookName, bookCounts, detail)
        values (#{bookName},#{bookCounts},#{detail});
    </insert>

    <!--根据id删除一个Book-->
    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookID=#{bookID};
    </delete>

    <!--更新Book-->
    <update id="updateBook" parameterType="Books">
        update ssmbuild.books
        set bookName = #{bookName},bookCounts=#{bookCounts},detail=#{detail}
        where bookID = #{bookID};
    </update>

    <!--根据id查询,返回一个Book-->
    <select id="queryBookById" resultType="Books">
		select * from ssmbuild.books
		where bookID=#{bookID};
	</select>

    <!--查询全部Book-->
    <select id="queryAllBook" resultType="Books">
		select * from ssmbuild.books;
	</select>

    <!--搜索Book根据名称-->
    <select id="queryBookByName" resultType="Books">
		select * from books where bookName=#{bookName}
	</select>

</mapper>
  • 7.编写Service层的接口和实现类
    接口:
package com.biubiubiu.service;

import com.biubiubiu.pojo.Books;

import java.util.List;

/**
 * @author biubiubiu
 */
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);

    //查询全部书籍
    List<Books> queryAllBook();

    //通过书名查找书籍
    Books queryBookByName(String bookName);

}


实现类:

package com.biubiubiu.service;

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

import java.util.List;

/**
 * @author biubiubiu
 */
public class BookServiceImpl implements BookService{
    //service调用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();
    }

    @Override
    public Books queryBookByName(String bookName) {
        return bookMapper.queryBookByName(bookName);
    }
}

OK,到此,底层需求操作编写完毕!

5、Spring层

配置Spring整合MyBatis,我们这里数据源使用c3p0连接池;
我们去编写Spring整合Mybatis的相关的配置文件;

5.1、 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
    			http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置整合mybatis -->
    <!-- 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
        c3p0: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:阿里的,公司常用
        hikari:springboot2.0自带的
    -->
    <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:大小 -->
        <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"/>
        <!-- 配置绑定MyBaties全局配置文件:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>

        <!--不知道为什么,在eclipse中没有配置这个就没错,但是在idea中就会找不到xml。。-->
        <property name="mapperLocations" value="classpath:com/biubiubiu/dao/*.xml"/>
    </bean>


    <!-- 4.配置Dao接口扫描包,动态的实现了Dao接口可以注入到Spring容器中(value与上边的id对应) -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 扫描要扫描的Dao包 -->
        <property name="basePackage" value="com.biubiubiu.dao"/>
    </bean>




</beans>

Spring整合service层

5.2、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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    			http://www.springframework.org/schema/beans/spring-beans.xsd
    			http://www.springframework.org/schema/context
    			http://www.springframework.org/schema/context/spring-context.xsd
    			http://www.springframework.org/schema/aop
    			http://www.springframework.org/schema/aop/spring-aop.xsd
    			http://www.springframework.org/schema/tx
    			http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 1.扫描service相关的包 -->
    <context:component-scan base-package="com.biubiubiu.service"/>

    <!-- 2.将ServiceImpl注入到IOC容器中 (依赖注入)-->
    <!--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-->
    <!--完全可以使用注解替换:@Service、@Autowired、@Qualifier或#Resource-->
    <bean id="BookServiceImpl" class="com.biubiubiu.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>

    <!-- 3.配置事务管理器: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!! -->
    <!-- 结合AOP实现事务的织入 -->
    <!-- 配置事务通知: -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <!-- 给那些方法配置事务 -->
        <!-- 配置事务的传播特性:new propagetion -->
        <tx:attributes>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!-- 配置事务切入:横切 -->
    <aop:config>
        <aop:pointcut id="txPointCut" expression="execution(* com.biubiubiu.dao.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
    </aop:config>




</beans>

Spring层搞定!再次理解一下,Spring就是一个大杂烩,一个容器!对吧!

6、SpringMVC层

6.1、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">

    <!-- 添加对springmvc的支持 -->
    <!-- DispatcherServlet -->
    <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>

    <!-- 编码过滤器 -->
    <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>

    <!-- 一般还有有个Session的过期时间 -->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>

6.2、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
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 配置SpringMVC -->
    <!-- 1.开启SpringMVC注解驱动 -->
    <mvc:annotation-driven/>

    <!-- 2.静态资源过滤,默认serlvet配置 -->
    <mvc:default-servlet-handler/>

    <!-- 3.扫描包:controller -->
    <context:component-scan base-package="com.biubiubiu.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>

6.3、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
        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>

配置文件,暂时结束!

7、Controller 和 视图层编写

7.1、编写过程

  1. BookController 类编写 , 方法一:查询全部书籍
	@Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

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

  1. 编写首页 index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE HTML>
<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">点击进入列表页</a>
</h3>
</body>
</html>
  1. 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>
    <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>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 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>

                <tbody>
                <c:forEach var="book" items="${requestScope.get('list')}">
                    <tr>
                        <td>${book.getBookID()}</td>
                        <td>${book.getBookName()}</td>
                        <td>${book.getBookCounts()}</td>
                        <td>${book.getDetail()}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.getBookID()}">更改</a> |
                            <a href="${pageContext.request.contextPath}/book/del/${book.getBookID()}">删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
  1. BookController 类编写 , 方法二:添加书籍
    //跳转到添加书籍页面
    @RequestMapping("/toAddBook")
    public String toAddPaper() {
        return "addBook";
    }

    //添加书籍的请求
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        bookService.addBook(books);
        //重定向到上边的@RequestMapping("/allBook")请求,实现请求复用
        return "redirect:/book/allBook";
    }
  1. 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"><br><br><br>
        书籍数量:<input type="text" name="bookCounts"><br><br><br>
        书籍详情:<input type="text" name="detail"><br><br><br>
        <input type="submit" value="添加">
    </form>

</div>
  1. BookController 类编写 , 方法三:修改书籍
    //跳转到修改书籍页面
    @RequestMapping("/toUpdateBook")
    public String toUpdatePaper(int id, Model model) {
        Books books = bookService.queryBookById(id);
        model.addAttribute("books", books);
        return "updateBook";
    }

    //修改书籍的请求
    @RequestMapping("/updateBook")
    public String updateBook(Model model, Books book) {
        bookService.updateBook(book);
        Books books = bookService.queryBookById(book.getBookID());
        model.addAttribute("books", books);
        return "redirect:/book/allBook";
    }
  1. 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>修改信息</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>修改信息</small>
                </h1>
            </div>
        </div>
    </div>

    <form action="${pageContext.request.contextPath}/book/updateBook" method="post">
        <input type="hidden" name="bookID" value="${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>
  1. BookController 类编写 , 方法四:删除书籍
    //删除书籍
    @RequestMapping("/deleteBook/{bookID}")
    public String delete(@PathVariable("bookID")int id) {
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }
  1. BookController 类编写 , 方法五:搜索书籍(根据名称查)
    //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", "未查到您要查询的书籍~");
        }

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

7.2、整合

  1. BookController 类
package com.biubiubiu.controller;

import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import com.biubiubiu.pojo.Books;
import com.biubiubiu.service.BookService;
/**
 * 视图控制层:面向controller编程
 * @author 11142
 *
 */
@Controller
@RequestMapping("/book")
public class BookController {
    //controller层调service层
    @Autowired
    @Qualifier("BookServiceImpl")
    private BookService bookService;

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

    //跳转到添加书籍页面
    @RequestMapping("/toAddBook")
    public String toAddPaper() {
        return "addBook";
    }

    //添加书籍的请求
    @RequestMapping("/addBook")
    public String addBook(Books books) {
        bookService.addBook(books);
        //重定向到上边的@RequestMapping("/allBook")请求,实现请求复用
        return "redirect:/book/allBook";
    }

    //跳转到修改书籍页面
    @RequestMapping("/toUpdateBook")
    public String toUpdatePaper(int id, Model model) {
        Books books = bookService.queryBookById(id);
        model.addAttribute("books", books);
        return "updateBook";
    }

    //修改书籍的请求
    @RequestMapping("/updateBook")
    public String updateBook(Model model, Books book) {
        bookService.updateBook(book);
        Books books = bookService.queryBookById(book.getBookID());
        model.addAttribute("books", books);
        return "redirect:/book/allBook";
    }

    //删除书籍
    @RequestMapping("/deleteBook/{bookID}")
    public String delete(@PathVariable("bookID")int id) {
        bookService.deleteBookById(id);
        return "redirect:/book/allBook";
    }

    //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", "未查到您要查询的书籍~");
        }

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


}

  1. index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <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">进入书籍展示页面</a>
</h3>
</body>
</html>
  1. allbook.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>书籍展示页面</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap
	CDN在线的Bootstrap不用下载引用
 -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
	
<div class="container">

    <div class="row clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1>
                    <small>书籍列表 —— 显示所有书籍</small>
                </h1>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-md-4 column">
            <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="queryBookName" 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:c:foreach -->
                <tbody>
                <!-- 可以从request域中拿requestScope.get('list'),其实也可以直接获取list,后边的同理 -->
                <c:forEach var="book" items="${list}"> 
                    <tr>
                        <td>${book.getBookID()}</td>
                        <td>${book.getBookName()}</td>
                        <td>${book.getBookCounts()}</td>
                        <td>${book.getDetail()}</td>
                        <td>
                            <a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookID}">修改</a>
                            	&nbsp; | &nbsp;
                            <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookID}">删除</a>
                        </td>
                    </tr>
                </c:forEach>
                </tbody>
            </table>
        </div>
    </div>
</div>
</body>
</html>
  1. 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">
    	<div class="form-group">
    		<label>书籍名称:</label>
    		<input type="text" name="bookName" class="form-control" required>
    		<!-- 加了required,表单项必须填写才能提交 -->
    	</div>
    	<div class="form-group">
    		<label>书籍数量:</label>
    		<input type="text" name="bookCounts" class="form-control" required>
    	</div>
    	<div class="form-group">
    		<label>书籍详情:</label>
    		<input type="text" name="detail" class="form-control" required>
    	</div>
    	<div class="form-group">
    		<input type="submit" class="form-control" value="添加">
    	</div>
    </form>

</div>
  1. 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="${pageContext.request.contextPath}/book/updateBook" method="post">
    	<%-- 修改失败,首先判断是不是事务的问题,事务添加完毕,依然失败,
    		然后查看sql语句,能否执行成功?sql执行失败,修改未完成,因为修改需要传id,我这里没有传
    		解决:前端传递隐藏域
    	 --%>
    	 <input type="hidden" name="bookID" value="${books.bookID }">
    	<div class="form-group">
    		<label>书籍名称:</label>
    		<input type="text" name="bookName" class="form-control" value="${books.bookName }" required>
    		<%-- 加了required,表单项必须填写才能提交 --%>
    	</div>
    	<div class="form-group">
    		<label>书籍数量:</label>
    		<input type="text" name="bookCounts" class="form-control" value="${books.bookCounts }" required>
    	</div>
    	<div class="form-group">
    		<label>书籍详情:</label>
    		<input type="text" name="detail" class="form-control" value="${books.detail }" required>
    	</div>
    	<div class="form-group">
    		<input type="submit" class="form-control" value="修改">
    	</div>
    </form>

</div>

配置Tomcat,运行!

到目前为止,这个SSM项目整合已经完全的OK了,可以直接运行进行测试!

8、项目最终结构图

在这里插入图片描述
完整案例,看完必会。。
请多多支持博主,点赞关注哦~~

发布了108 篇原创文章 · 获赞 39 · 访问量 9331

猜你喜欢

转载自blog.csdn.net/qq_40246175/article/details/103838085