整合ssm

ssm整合

创建数据库
新建Maven项目,添加web支持

导入相关的pom依赖！(导包),Maven资源过滤设置

<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>

<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>

建立基本结构和配置框架！

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>

Mybatis层编写

数据库配置文件 database.properties

jdbc.driver=com.mysql.jdbc.Driver
#如果使用的是MySQL8.0+，增加一个时区的配置; &serverTime zone=Asia/Shanghai
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&useUnicode=true&characterEncoding=utf8&serverTime zone=Asia/Shanghai
jdbc.username=root
jdbc.password=123456

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>
   
   <typeAliases>
       <package name="com.hu.pojo"/>
   </typeAliases>
   <mappers>
       <mapper resource="com/hu/dao/BookMapper.xml"/>
   </mappers>

</configuration>

编写数据库对应的实体类 com.hu.pojo.Books

package com.hu.pojo;

public class Books {
    private int bookID;
    private String bookName;
    private int bookCounts;
    private String detail;

    public Books() {
    }

    public Books(int bookID, String bookName, int bookCounts, String detail) {
        this.bookID = bookID;
        this.bookName = bookName;
        this.bookCounts = bookCounts;
        this.detail = detail;
    }

    public int getBookID() {
        return bookID;
    }

    public void setBookID(int bookID) {
        this.bookID = bookID;
    }

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public int getBookCounts() {
        return bookCounts;
    }

    public void setBookCounts(int bookCounts) {
        this.bookCounts = bookCounts;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail;
    }

    @Override
    public String toString() {
        return "Books{" +
                "bookID=" + bookID +
                ", bookName='" + bookName + '\'' +
                ", bookCounts=" + bookCounts +
                ", detail='" + detail + '\'' +
                '}';
    }
}

编写Dao层的 Mapper接口！

package com.hu.dao;

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

import java.util.List;

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
    int queryBookById(@Param("bookId") int id);
    //查询全部的书
    List<Books> queryAllBook();
}

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.hu.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>

编写Service层的接口和实现类

接口

package com.hu.service;import com.hu.pojo.Books;import org.apache.ibatis.annotations.Param;import java.util.List;public interface BookService {    //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    int queryBookById(@Param("bookId") int id);    //查询全部的书    List<Books> queryAllBook();}

实现类：

package com.hu.service;import com.hu.dao.BookMapper;import com.hu.pojo.Books;import java.util.List;public class BookServiceImpl implements BookService{    //Service调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 int queryBookById(int id) {        return bookMapper.queryBookById(id);    }    @Override    public List<Books> queryAllBook() {        return bookMapper.queryAllBook();    }}

Spring层

配置Spring整合MyBatis，我们这里数据源使用c3p0连接池；

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dbcp:半自动化操作，不能自动连接c3pe: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 -->    <context:property-placeholder location="classpath:database.properties"/>    <!-- 2.数据库连接池 -->    <!--数据库连接池        dbcp 半自动化操作 不能自动连接        c3p0 自动化操作（自动的加载配置文件 并且设置到对象里面）    -->    <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 -->        <property name="basePackage" value="com.hu.dao"/>    </bean></beans>

Spring整合service层

spring-service.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       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.hu.service" />    <!--BookServiceImpl注入到IOC容器中-->    <bean id="BookServiceImpl" class="com.hu.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>

SpringMVC层

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>            <!--一定要注意:我们这里加载的是总的配置文件，之前被这里坑了！-->            <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>

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   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.hu.controller" /></beans>

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！Controller 和视图层编写...

posted @ 2021-10-04 17:43 亦知阅读(30) 评论(0) 收藏举报

刷新页面返回顶部

亦知

整合ssm

ssm整合

Mybatis层编写

Spring层

SpringMVC层

公告