SSM框架整合实例

Maven项目结构 ：

在pom.xml中添加依赖：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>gdou.laiminghai</groupId>
  <artifactId>pre-worker-ssm</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>pre-worker-ssm Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>
        <!-- spring版本号 -->
        <spring.version>4.3.12.RELEASE</spring.version>
        <!-- aspectj版本号 -->
        <aspectj.version>1.7.4</aspectj.version>
    </properties>

    <dependencies>
        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- slf4j -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.6.4</version>
        </dependency>

        <!-- spring核心 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- aspectj相关jar包 -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>${aspectj.version}</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>${aspectj.version}</version>
        </dependency>

        <!-- spring web -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>

        <!--PageHelper分页插件 -->
        <!--<dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.0.0</version>
        </dependency>-->

        <!-- mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.25</version>
        </dependency>
        <!-- druid数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.5</version>
        </dependency>

        <!-- jackson -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.9</version>
        </dependency>

        <!-- jstl -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>

        <!-- spring test -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
  <build>
    <finalName>SSM-START</finalName>
    <plugins>
        <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-compiler-plugin</artifactId>
             <version>3.1</version>
             <configuration>
                 <source>1.8</source>     
                 <target>1.8</target>      
             </configuration>
       </plugin>
    </plugins>
  </build>
</project>

Web全局文件配置：web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
    id="WebApp_ID" version="3.1">
  <display-name>SSM-START</display-name>
  <!-- Spring配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:config/spring-beans.xml
        </param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- Spring-mvc Servlet配置 -->
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:config/spring-mvc.xml</param-value>
        </init-param>
        <init-param>
            <param-name>throwExceptionIfNoHandlerFound</param-name>
            <param-value>true</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <!-- 为servlet设置启用异步支持 -->
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!-- 编码过滤 -->
    <filter>
        <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

Spring和Mybatis相关配置：

SpringMVC配置：spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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
       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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <mvc:annotation-driven>
        <mvc:message-converters register-defaults="false">
             <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">  
                <property name="supportedMediaTypes">  
                    <list>
                        <value>text/html;charset=UTF-8</value>
                        <value>application/json;charset=UTF-8</value>  
                    </list>  
                </property>  
            </bean>  
        </mvc:message-converters>
    </mvc:annotation-driven>

    <!-- 扫描生成controller组件 -->
    <context:component-scan base-package="gdou.laiminghai.controller"/>

    <!-- 静态资源 -->
    <mvc:resources location="/static/" mapping="/static/**"/>

    <!-- 配置根视图 -->
    <mvc:view-controller path="/" view-name="index"/>

    <!-- 默认的视图解析器- -->
    <bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="contentType" value="text/html"/>
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

Mybatis配置：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>
    <!--设置在控制台输出SQL语句 -->
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>
    <!-- 配置PageHerper插件 -->
    <!--<plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <!--分页参数合理化,当页数<1或者>最大页数时，自动修正 -->
            <property name="reasonable" value="true" />
        </plugin>
    </plugins>-->
</configuration>

数据库参数设置：mysql.properties

mysql.driver=com.mysql.jdbc.Driver
mysql.url=jdbc\:mysql\://localhost\:3306/pre_worker?useUnicode=true&characterEncoding=utf-8
mysql.user=root
mysql.password=mysql
druid.maxActive=100
druid.initialSize=30
druid.minIdle=0
druid.maxWait=60000
druid.timeBetweenEvictionRunsMillis=60000
druid.minEvictableIdleTimeMillis=600000
druid.validationQuery=select 1
druid.testWhileIdle=true
druid.testOnBorrow=false
druid.testOnReturn=false
druid.keepAlive=true

Spring Beans配置：spring-beans.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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/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
          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:property-placeholder location="classpath*:properties/*.properties"/>

    <!-- mysql数据库连接池 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${mysql.driver}"/>
        <property name="url" value="${mysql.url}"/>
        <property name="username" value="${mysql.user}"/>
        <property name="password" value="${mysql.password}"/>
        <!-- 配置初始化连接数大小初始化、最小闲置数、最大连接数 -->
        <property name="initialSize" value="${druid.initialSize}"/>
        <property name="minIdle" value="${druid.minIdle}"/>
        <property name="maxActive" value="${druid.maxActive}"/>
        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="${druid.maxWait}"/>

        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="${druid.maxWait}" />

        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="${druid.minEvictableIdleTimeMillis}" />

        <property name="validationQuery" value="${druid.validationQuery}" />
        <property name="testWhileIdle" value="${druid.testWhileIdle}" />
        <property name="testOnBorrow" value="${druid.testOnBorrow}" />
        <property name="testOnReturn" value="${druid.testOnReturn}" />

        <property name="keepAlive" value="true" />
    </bean>

    <!-- 配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--dataSource属性指定要用到的连接池-->
        <property name="dataSource" ref="dataSource" />
        <!--configLocation属性指定mybatis的核心配置文件-->
        <property name="configLocation" value="classpath:config/mybatis-config.xml" />
        <!-- 扫描entity包 使用别名 -->
        <property name="typeAliasesPackage" value="gdou.laiminghai.entity"></property>
        <!-- 扫描sql配置文件:mapper需要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*Mapper.xml"></property>
    </bean>

    <!--事务管理器配置-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

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

    <!-- 切面 -->
    <aop:config expose-proxy="true" proxy-target-class="true">
        <!-- 只对业务逻辑层实施事务 -->
        <aop:pointcut id="txPointcut" expression="execution(* gdou.laiminghai.service..*+.*(..))"/>
        <aop:advisor id="txAdvisor" advice-ref="txAdvice" pointcut-ref="txPointcut"/>
    </aop:config>

    <!-- 配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="gdou.laiminghai.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

    <!-- 扫描生成service组件 -->
    <context:component-scan base-package="gdou.laiminghai.service.impl"/>

</beans>

数据库表格以及实体类：

CREATE TABLE `users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(20) DEFAULT NULL,
  `age` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
)

public class User {
    private Integer id;
    private String name;
    private Integer age;
    //...
}

Dao层编写：

Dao接口编写：

public interface IUserDao {
    void insertUser(User user);
    void deleteUser(int id);
    User findById(int id);
    void updateUser(User user);

    List<User> findAll();
}

Mapper文件编写：

<?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="gdou.laiminghai.dao.IUserDao">
    <resultMap type="User" id="userResult">
        <id column="id" property="id"/>
        <result column="name" property="name"/>
        <result column="age" property="age"/>
    </resultMap>
    <!-- 添加 -->
    <insert id="insertUser" parameterType="User" keyProperty="id" useGeneratedKeys="true">
        INSERT INTO users(name,age) 
            VALUES(#{name,jdbcType=VARCHAR},#{age,jdbcType=INTEGER})
    </insert>
    <!-- 删除 -->
    <delete id="deleteUser" parameterType="int">
        DELETE FROM users 
            WHERE id = #{_parameter}
    </delete>
    <!-- 根据ID查找  -->
    <select id="findById" parameterType="int" resultMap="userResult">
        SELECT * FROM users 
            WHERE id = #{_parameter}
    </select>
    <!-- 更新 -->
    <update id="updateUser" parameterType="User">
        UPDATE users SET
            name = #{name,jdbcType=VARCHAR},
                age = #{age,jdbcType=INTEGER}
                    WHERE id = #{id,jdbcType=INTEGER}
    </update>
    <!-- 查找所有 -->
    <select id="findAll" resultMap="userResult">
        SELECT * FROM users
    </select>
</mapper>

业务层编写：

Service接口：

public interface IUserService {
    void addUser(User user);
    void deleteUser(int id);
    User findById(int id);
    void updateUser(User user);
    List<User> findAll();
}

Service实现：

@Service
public class UserServiceImpl implements IUserService {

    @Autowired
    private IUserDao userDao;

    @Override
    public void addUser(User user) {
        userDao.insertUser(user);
    }

    @Override
    public void deleteUser(int id) {
        userDao.deleteUser(id);
    }

    @Override
    public User findById(int id) {
        return userDao.findById(id);
    }

    @Override
    public void updateUser(User user) {
        userDao.updateUser(user);
    }

    @Override
    public List<User> findAll() {
        return userDao.findAll();
    }

}

控制层编写

@Controller
public class UserController {

    @Autowired
    private IUserService userService;

    @RequestMapping("/")
    public String index() {
        return "index";
    }

    @RequestMapping("/addUser")
    public ModelAndView addUser(User user) {
        ModelAndView mad = new ModelAndView("success");
        userService.addUser(user);
        mad.addObject("user", user);
        return mad;
    }

    @RequestMapping("/listUser")
    public ModelAndView findAll() {
        ModelAndView mad = new ModelAndView("allusers");
        mad.addObject("users", userService.findAll());
        return mad;
    }

    @RequestMapping("/deleteUser")
    public ModelAndView delete(int id) {
        ModelAndView mad = new ModelAndView("allusers");
        userService.deleteUser(id);
        mad.addObject("users", userService.findAll());
        return mad;
    }

    @RequestMapping("/showUpdateForm")
    public ModelAndView showUpdate(int id) {
        ModelAndView mad = new ModelAndView("updateuser");
        mad.addObject("user", userService.findById(id));
        return mad;
    }

    @RequestMapping("/updateUser")
    public ModelAndView updateUser(User user) {
        ModelAndView mad = new ModelAndView("success");
        userService.updateUser(user);
        mad.addObject("user", user);
        return mad;
    }
}

完整项目地址：http://download.csdn.net/download/crazylai1996/10254282