springmvc:(十) ssm整合

  1. 建库

    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');
    
  2. 新建maven项目,添加web支持导入依赖

    <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 -->
        <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>
    </dependencies>
    
    //静态资源过滤
    <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>
    
    • com.ry.pojo

    • com.ry.dao

    • com.ry.service

    • com.ry.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>
      
  3. mybatis层编写

    1. db.properties

      jdbc.driver=com.mysql.jdbc.Driver
      jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
      jdbc.username=root
      jdbc.password=123
      
    2. 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>
          
          <typeAliases>
              <package name="com.ry.pojo"/>
          </typeAliases>
          <mappers>
              <mapper resource="com/ry/dao/BookMapper.xml"/>
          </mappers>
      
      </configuration>
      
    3. 编写实体类

    4. 编写Dao层的mapper接口

      public interface BookMapper {
      
          //增加一个Book
          int addBook(Books book);
      
          //根据id删除一个Book
          int deleteBookById(int id);
      
          //更新Book
          int updateBook(Books books);
      
          //根据id查询,返回一个Book
          Books queryBookById(int id);
      
          //查询全部Book,返回list集合
          List<Books> queryAllBook();
      
      }
      
    5. 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 Mapper 3.0//EN"
              "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
      
      <mapper namespace="com.ry.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>
      
      </mapper>
      
    6. 编写Service层的接口和实现类

      接口:

      //BookService:底下需要去实现,调用dao层
      public interface BookService {
          //增加一个Book
          int addBook(Books book);
          //根据id删除一个Book
          int deleteBookById(int id);
          //更新Book
          int updateBook(Books books);
          //根据id查询,返回一个Book
          Books queryBookById(int id);
          //查询全部Book,返回list集合
          List<Books> queryAllBook();
      }
      

      实现类:

      public class BookServiceImpl implements BookService {
      
          //调用dao层的操作,设置一个set接口,方便Spring管理
          private BookMapper bookMapper;
      
          public void setBookMapper(BookMapper bookMapper) {
              this.bookMapper = bookMapper;
          }
          
          public int addBook(Books book) {
              return bookMapper.addBook(book);
          }
          
          public int deleteBookById(int id) {
              return bookMapper.deleteBookById(id);
          }
          
          public int updateBook(Books books) {
              return bookMapper.updateBook(books);
          }
          
          public Books queryBookById(int id) {
              return bookMapper.queryBookById(id);
          }
          
          public List<Books> queryAllBook() {
              return bookMapper.queryAllBook();
          }
      }
      
    7. Spring层

      1. 配置Spring整合MyBatis,我们这里数据源使用c3p0连接池

        1. 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">
        
            <!-- 配置整合mybatis -->
            <!-- 1.关联数据库文件 -->
            <context:property-placeholder location="classpath:database.properties"/>
        
            <!-- 2.数据库连接池 -->
        <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.配置SqlSessionFactory对象 -->
            <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties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 -->
            <!--解释 : https://www.cnblogs.com/jpfss/p/7799806.html-->
            <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(可以扫描多个包,用逗号隔开) -->
        <property name="basePackage" value="com.kuang.dao"/>
            </bean>
        
        </beans>
        

        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
            http://www.springframework.org/schema/context/spring-context.xsd">
        
            <!-- 扫描service相关的bean -->
            <context:component-scan base-package="com.kuang.service" />
        
            <!--BookServiceImpl注入到IOC容器中-->
            <bean id="BookServiceImpl" class="com.kuang.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
            </bean>
        
            <!-- 配置事务管理器 -->
            <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource" />
            </bean>
        
        </beans>
        
    8. web.xml

      <?xml version="1.0" encoding="UTF-8"?>
      <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
               version="4.0">
      
          <!--DispatcherServlet-->
          <servlet>
              <servlet-name>DispatcherServlet</servlet-name>
              <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
              <init-param>
                  <param-name>contextConfigLocation</param-name>
                  <param-value>classpath:applicationContext.xml</param-value>
              </init-param>
              <load-on-startup>1</load-on-startup>
          </servlet>
          <servlet-mapping>
              <servlet-name>DispatcherServlet</servlet-name>
              <url-pattern>/</url-pattern>
          </servlet-mapping>
      
          <!--encodingFilter-->
              <filter>
                  <filter-name>encodingFilter</filter-name>
                  <filter-class>
                      org.springframework.web.filter.CharacterEncodingFilter
                  </filter-class>
                  <init-param>
                      <param-name>encoding</param-name>
                      <param-value>utf-8</param-value>
                  </init-param>
              </filter>
              <filter-mapping>
                  <filter-name>encodingFilter</filter-name>
                  <url-pattern>/*</url-pattern>
              </filter-mapping>
      
              <!--Session过期时间-->
              <session-config>
                  <session-timeout>15</session-timeout>
              </session-config>
          
      </web-app>
      
    9. spring-mvc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"
             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
          https://www.springframework.org/schema/mvc/spring-mvc.xsd">
      
          <!-- 配置SpringMVC -->
          
          <!-- 1.开启SpringMVC注解驱动 -->
          <mvc:annotation-driven />
          <!-- 2.静态资源默认servlet配置-->
          <mvc:default-servlet-handler/>
      
          <!-- 3.配置jsp 显示ViewResolver视图解析器 -->
          <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
              <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
              <property name="prefix" value="/WEB-INF/jsp/" />
              <property name="suffix" value=".jsp" />
          </bean>
      
          <!-- 4.扫描web相关的bean -->
          <context:component-scan base-package="com.kuang.controller" />
      
      </beans>
      
       
       
    
  4. spring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>
    
  5. controller/视图层的编写

    @Controller
    @RequestMapping("/book")
    public class BookController {
    
        @Autowired
        @Qualifier("BookServiceImpl")
        private BookService bookService;
    
        @RequestMapping("/allBook")
        public String list(Model model) {
            List<Books> list = bookService.queryAllBook();
            model.addAttribute("list", list);
            return "allBook";
        }
    }
    
  6. index.jsp首页

<%@ 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

    <%@ 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>
    
posted @ 2020-03-13 12:28  梦想与爱  阅读(230)  评论(0编辑  收藏  举报