在整合SSM的时候我们需要大量的配置文件，而些东西都是死的东西，不应话大量的时间去记忆这些东西，而应该吧精力放在业务层面的代码，所有在这里写下配置的文件方便自己以后使用

基本环境的搭建

	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>org.example</groupId>
    <artifactId>ssmbuild</artifactId>
    <version>1.0-SNAPSHOT</version>
<!--    依赖问题-->
    <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>
<!--        lombok-->
        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>

        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.13</version>
        </dependency>

    </dependencies>
<!--    静态资源到处问题-->
    <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. Maven资源过滤设置 2. 建立基本结构和配置框架！ 3. com.kuang.pojo 4. com.kuang.dao 5.com.kuang.service 6.com.kuang.controller 7. mybatis-config.xml 8. applicationContext.xml

Mybatis层的编写

1.database.propertise的编写

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&amp;useUnicode=true&amp;characterEncoding=utf8&amp;serverTimezone=Asia/Shanghai
jdbc.username=root
jdbc.password=root

2 关联数据库
3.mybatis的核心配置文件 mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--    配置数据源 交给spring去做-->
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>
    <typeAliases>
        <package name="com.ali.pojo"/>
    </typeAliases>
    <mappers>
        <mapper class="com.ali.dao.BookMapper"/>
    </mappers>

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

```bash
package com.ali.pojo;

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

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Books {
    private int BookID;
    private String bookName;
    private int bookCounts;
    private String detail;
}

编写Dao层的 Mapper接口！
package com.ali.dao;

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

import java.util.List;

public interface BookMapper {
    //增加一本书
    int addBook(Books books);
    //删一本书
    int deleteBookById( int id);
    //改一本书
    int updateBook(Books books);
    //查一本书
    Books queryBookById(int id);
    //查全部的一本书
    List<Books> queryAllBook();
    Books queryBookByName(@Param("bookName") String bookName);
}

编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包；

7. <?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.ali.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 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" parameterType="int" resultType="Books">
          select * from ssmbuild.books
            where bookID = #{bookID}
    </select>
    <select id="queryAllBook" resultType="Books">
        select * from ssmbuild.books
    </select>
    <select id="queryBookByName" resultType="Books">
        select * from books where bookName=#{bookName};
    </select>
</mapper>

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； spring-dao.xml

3. <?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="database.properties"/>-->
<!--    2.连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&amp;useUnicode=true&amp;characterEncoding=utf8&amp;serverTimezone=Asia/Shanghai"/>
        <property name="user" value="root"/>
        <property name="password" value="root"/>
        <!-- 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的配置信息-->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>

    </bean>
<!--   配置打开接口的扫描宝 动态的事项dao接口可以注入到实现类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--        祖茹sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!--        烧苗的包-->
        <property name="basePackage" value="com.ali.dao"/>
    </bean>

</beans>
3. Spring整合service层 编写spring-service.xml

```bash
<?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/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--  1.  扫描宝-->
    <context:component-scan base-package="com.ali.service"/>
<!--  2. 讲我们的所有的业务的类注册到Spring可以通过配置实现-->
    <bean id="BookServiceImpl" class="com.ali.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>
<!--    3.声明事务-->
    <bean id="TransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
<!--        4.AOP横切事务-->
<!--   u事物的通知 -->

<!--    <tx:advice id="txAdvice" transaction-manager="TransactionManager">-->
<!--        <tx:attributes>-->
<!--            <tx:method name="*" propagation="REQUIRED"/>-->
<!--        </tx:attributes>-->

<!--    </tx:advice>-->
<!--    <aop:config>-->
<!--        &lt;!&ndash;切入点 expression:表达式匹配要执行的方法&ndash;&gt;-->
<!--        <aop:pointcut id="txPointCut" expression="execution(* com.ali.dao.*.*(..))"/>-->
<!--        &lt;!&ndash;执行环绕; advice-ref执行方法 . pointcut-ref切入点&ndash;&gt;-->

<!--        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>-->
<!--    </aop:config>-->



</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">
<!--    DispathServlet-->
    <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>
<!--    默认的过期时间-->
    <session-config>
        <session-timeout>15</session-timeout>
    </session-config>

</web-app>

编写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: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
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/context
       http://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.controller-->
    <context:component-scan base-package="com.ali.controller"/>
<!--    4.视图解析器-->
    <bean name="viewClass" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>

    </bean>

</beans>

将spring配置的文件整合到applicationContext.xml中

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

</beans>

原文链接：https://blog.csdn.net/weixin_43824400/article/details/108307284