ssm整合的簡單案例（附源碼）

ssm框架的整合可以採用多種方式，這裏選擇xml + 註解的方式，整合的前提是每一個部分都要能自己獨立運行，不然就沒有意義了。

整合思路如下圖：

一、先搭建整合環境

1.使用maven創建一個web項目

2.在pom.xml中導入相關座標

如下：

<?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>ssmzhenghe</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssmzhenghe Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <spring.version>5.0.2.RELEASE</spring.version>
        <mysql.version>5.1.6</mysql.version>
        <mybatis.version>3.4.5</mybatis.version>
    </properties>

    <dependencies>
        <!--    spring-->
        <!--AOP相關技術-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.8</version>
        </dependency>

        <!--AOPjar包-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>

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

        <!--mvc相關jar包-->
        <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>

        <!--單元測試-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--事務-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--JDBC技術-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--單元測試-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>compile</scope>
        </dependency>

        <!--Mysql驅動jar包-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>

        <!--Servlet相關jar包-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>

        <!--頁面 el、jstl表達式-->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!--      log  strat-->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.12</version>
        </dependency>
        <!--      log  end-->

        <!--Mybatis相關jar包組件-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>

        <!--spring整合mybatis所需jar包-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>

        <!--數據庫連接池：c3p0-->
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>

    </dependencies>


  <build>
    <finalName>ssmzhenghe</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

3.創建java文件夾與resource文件夾

二、先把spring配置搭建完

1.編寫applicationContext.xml文件

值得一提的是，spring只處理業務層與持久層的註釋，所以編寫掃描時，要把表現層controller排除

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"
       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">

    <!--    開啓註解掃描 只需要處理service和dao -->
    <context:component-scan base-package="ssm.test">
        <!--        配置哪些註解不掃描-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
</beans>

測試spring是否配置成功

service的實現類

package ssm.test.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import ssm.test.dao.AccountDao;
import ssm.test.domain.Account;
import ssm.test.service.AccountService;

import java.util.List;


@Service("accountService")
public class AccountServiceImpl implements AccountService {

    @Autowired
    private AccountDao accountDao;

    public List<Account> findAll() {
        System.out.println("業務層：查詢所有。。。");
        return accountDao.findAll();
    }


    public void saveAccount(Account account) {
        System.out.println("業務層：保存用戶。。，");
        accountDao.saveAccount(account);
    }

    @Override
    public void Delete(Integer id) {
        System.out.println("業務層：刪除賬戶。。。");
        accountDao.Delete(id);
    }
}

測試類：

package ssm.test.test;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import ssm.test.service.AccountService;

public class testSpring {
    @Test
    public void run1(){
        //加載配置文件
        ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
        //獲取對象
        AccountService as = (AccountService) ac.getBean("accountService");
        //調用方法
        as.findAll();
    }
}

結果：

說明spring框架可以使用，測試通過

三、再使用spring整合springMVC框架

1.編寫web.xml,配置前端控制器 、解決中文亂碼

web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!--  配置前端控制器    -->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--  加載springMVC.xml配置文件    -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!-- 啓動服務器，創建該Servlet -->
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- 解決中文亂碼 -->
  <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>

2.編寫springmvc.xml文件，開啓註解掃描，只掃描Controller註解、配置視圖解析器、過濾靜態資源

springmvc.xml

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

    <!--    開啓註解掃描，只掃描Controller註解-->
    <context:component-scan base-package="ssm.test">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 配置視圖解析器 -->
    <bean id="internalResourceViewResolver"  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>


    <!-- 過濾靜態資源 -->
    <mvc:resources mapping="/css/**" location="/css/"/>
    <mvc:resources mapping="/images/**" location="/images/"/>
    <mvc:resources mapping="/js/**" location="/js/"/>

    <!-- 開啓springMVC註解支持 -->
    <mvc:annotation-driven/>
</beans>

3.測試springMVC是否搭好

由於內容和代碼比較多，我就不寫上去了，最下面有我整個案例的源碼的鏈接，可以自行下載

如圖，spring環境搭好

4.spring整合springMVC框架

思路：spring整合springMVC：啓動Tomcat服務器的時候，需要加載spring的配置文件，來完成正常的依賴注入

具體實現，在web.xml中加入spring監聽器

  <!--  配置spring的監聽器，默認只加載WEB-INF目錄下的配置文件-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--  但是由於SpringConfig.xml配置文件不在WEB-INF目錄下，所以需要指定路徑-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

測試：

兩個一起出現說明整合成功

四、最後使用spring整合MyBatis框架

1.編寫MyBatis核心文件

SqlMapConfig.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">
<!--主配置文件-->
<configuration>
    <!--引入外部配置文件-->
<!--    <properties resource="jdbcConfig.properties"></properties>-->

    <!--使用typeAliases配置別名，它只能配置domain中的類名-->
    <typeAliases>
        <!--用於指定要配置別名的包，當指定之後，該包下的實體類都會註冊別名，並且類名就是別名，不再區分大小寫-->
        <package name="ssm.test.domain"/>
    </typeAliases>

    <!--配置環境 -->
    <environments default="mysql">
        <!--配置mysql的環境-->
        <environment id="mysql">
            <!--配置事物類型-->
            <transactionManager type="JDBC"></transactionManager>
            <!--配置數據源（連接池）-->
            <dataSource type="POOLED">
                <!--配置數據庫的基本信息-->
                <property name="driver" value="com.mysql.jdbc.Driver"></property>
                <property name="url" value="jdbc:mysql://localhost:3306/ssm"></property>
                <property name="username" value="root"></property>
                <property name="password" value="root"></property>
            </dataSource>
        </environment>
    </environments>
    <!--指定映射配置文件的位置，映射配置文件指的是每個dao獨立的配置文件-->
    <mappers>
        <!--        <mapper resource="com/qa/dao/UserDao.xml"/>-->
        <!-- package標籤是用於指定dao接口所在的包，當指定了之後就不需要在寫mapper以及resource或者class了 -->
        <package name="ssm.test.dao"></package>
    </mappers>
</configuration>

2.編寫Dao接口

關於數據庫和實體類我沒有給出，但是可以在最下面我在GitHub的源碼下載整個案例

package ssm.test.dao;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
import ssm.test.domain.Account;

import java.util.List;

/*
* 賬戶Dao接口
* */
public interface AccountDao {

    //查詢所有
    @Select("select * from account")
    public List<Account> findAll();

    //保存賬戶
    @Insert("insert into account (name,money) values (#{name},#{money})")
    public  void  saveAccount(Account account);

    //刪除賬戶
    @Delete("delete from account where id = #{id}")
    public void Delete(Integer id);

}

3.測試MyBatis是否配置成功

如圖，測試成功

4.spring整合MyBatis框架

1）applicationContext.xml 追加一下配置

    <!--Spring整合Mybatis框架-->
    <!--配置連接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm"></property>
        <property name="user" value="root"></property>
        <property name="password" value="root"></property>
    </bean>
    <!--配置SqLSessionFactory工廠-->
    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--配置AccountDao接口所在包-->
    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="ssm.test.dao"></property>
    </bean>

    <!-- 配置spring框架聲明式事務管理 -->
    <!-- 配置事務管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 配置事務通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>

    <!-- 配置AOP增強 -->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution( * ssm.test.service.impl.*ServiceImpl.*(..))"/>
    </aop:config>

2）把Dao給spring管理

在接口那裏加上@Repository

/*
 * 賬戶Dao接口
 * */
@Repository
public interface AccountDao {

    //查詢所有
    @Select("select * from account")
    public List<Account> findAll();

    //保存賬戶
    @Insert("insert into account (name,money) values (#{name},#{money})")
    public  void  saveAccount(Account account);

    //刪除賬戶
    @Delete("delete from account where id = #{id}")
    public void Delete(Integer id);

}

測試整合

業務層調用了持久層的接口，測試成功

最後，因爲剛接觸ssm，肯定有很多問題，希望大佬的指正。

附源碼地址： https://github.com/Try-your-best-to-do/ssm