Spring+SpringMVC+Mybatis搭建整合環境

Spring+SpringMVC+Mybatis搭建整合環境

    1.使用xml+註解的方式，使用工具IDEA
        項目結構：

    2.創建數據庫和表的結構

create database ssm;
use ssm;
create table account(
    id int primary key auto_increment,
    name varchar(20),
    money double
);

    3.導入所需的jar包座標

<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>
  <slf4j.version>1.6.6</slf4j.version>
  <log4j.version>1.2.12</log4j.version>
  <mysql.version>5.1.6</mysql.version>
  <mybatis.version>3.4.5</mybatis.version>
</properties>

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

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

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

  <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-test</artifactId>
    <version>${spring.version}</version>
  </dependency>

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

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

  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>compile</scope>
  </dependency>

  <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>${mysql.version}</version>
  </dependency>

  <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>

  <dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
  </dependency>

  <!-- log start -->
  <dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>${log4j.version}</version>
  </dependency>

  <dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j.version}</version>
  </dependency>

  <dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>${slf4j.version}</version>
  </dependency>

  <!-- log end -->
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>${mybatis.version}</version>
  </dependency>

  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.2</version>
  </dependency>

  <dependency>
    <groupId>c3p0</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.1.2</version>
    <type>jar</type>
    <scope>compile</scope>
  </dependency>
</dependencies>

    4.整合思路：
        1）搭建整合的環境
        2）完成Spring的配置
        3）Spring整合SpringMVC框架
        4）Spring整合MyBatis框架

    1）搭建整合的環境
        編寫實體類

import java.io.Serializable;
/**
* 賬戶
*/
public class Account implements Serializable {
    private Integer id;
    private String name;
    private Double money;
    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                '}';
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Double getMoney() {
        return money;
    }
    public void setMoney(Double money) {
        this.money = money;
    }
}

        編寫dao接口

import cn.ycl.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

import java.util.List;

/**
* 持久層接口
*/
@Repository
public interface IAccountDao {
    //查詢所有賬戶
    @Select("select * from account")
    public List<Account> findAll();
    //保存賬戶
    @Insert("insert into account(name,money) value (#{name},#{money})")
    public void saveAccount(Account account);
}

        編寫業務層接口

import cn.ycl.domain.Account;


import java.util.List;
//業務層接口
public interface IAccountService {
    //查詢所有賬戶
    public List<Account> findAll();
    //保存賬戶
    public void saveAccount(Account account);
}

        實現業務層接口

import cn.ycl.dao.IAccountDao;
import cn.ycl.domain.Account;
import cn.ycl.service.IAccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


import java.util.List;
@Service
public class AccountService implements IAccountService {
    @Autowired
    private IAccountDao iAccountDao;
    @Override
    public List<Account> findAll() {
        System.out.println("業務層：查詢所有賬戶.....");
        return iAccountDao.findAll();
    }


    @Override
    public void saveAccount(Account account) {
        System.out.println("業務層：保存賬戶.....");
        iAccountDao.saveAccount(account);
    }
}

    2）完成Spring的配置
        編寫配置文件applicationContext.xml，包含了整合MyBatis框架的配置和事務管理

<?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-->
    <context:component-scan base-package="cn.ycl">
        <!--配置不掃描的註解-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--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 name="jdbcUrl" value="jdbc:mysql:///ssm"/>
        <property name="user" value="root"/>
        <property name="password" value="root"/>
    </bean>
    <!--配置SqlSessionFactory工廠-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!--配置dao接口所在的包-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.ycl.dao"/>
    </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"/>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"/>
    <!--配置事務通知-->
    <tx:advice id="txAdvice">
        <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:pointcut id="pt1" expression="execution(* cn.ycl.service.impl.AccountService.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
    </aop:config>
</beans>

    3）Spring整合SpringMVC框架
        在web.xml中配置DispatcherServlet前端控制器，加載springmvc.xml配置文件，並配置中文亂碼過濾器，最後配置spring的監聽器

<!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spring的監聽器,默認下只加載WEB-INF目錄下的applicationContext.xml配置文件-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--設置配置文件的路徑-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!--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>
  <!--解決中文亂碼的過濾器-->
  <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>

        springmvc.xml文件：配置註解掃描、配置視圖解析器、開啓springmvc註解的支持

<?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
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--配置註解掃描，只掃描Controller-->
    <context:component-scan base-package="cn.ycl">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--配置視圖解析器-->
    <bean id="resourceViewResolver" 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註解的支持-->
    <mvc:annotation-driven/>
</beans>

    4）Spring整合MyBatis框架
        向applicationContext.xml文件中配置連接池對象，SqlSessionFactory工廠對象，配置掃描的dao包，聲明事務管理（相關配置已在上面的applicationContext.xml中了）
    測試用例：

import cn.ycl.dao.IAccountDao;
import cn.ycl.domain.Account;
import cn.ycl.service.impl.AccountService;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.io.InputStream;
import java.util.List;


public class TestSpring {
    @Test
    public void run1(){
        ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
        AccountService as = ac.getBean("accountService", AccountService.class);
        as.findAll();
    }
    @Test
    public void run2() throws Exception {
        //加載配置文件
        InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");
        //創建SqlSessionFactory對象
        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);
        //創建SqlSession對象
        SqlSession session = factory.openSession();
        //獲取代理對象
        IAccountDao dao = session.getMapper(IAccountDao.class);
        //查詢所有數據
        List<Account> accounts = dao.findAll();
        for (Account account : accounts) {
            System.out.println(account);
        }
        //關閉資源
        session.close();
        in.close();
    }
    @Test
    public void run3() throws Exception {
        //加載配置文件
        InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");
        //創建SqlSessionFactory對象
        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);
        //創建SqlSession對象
        SqlSession session = factory.openSession();
        //獲取代理對象
        IAccountDao dao = session.getMapper(IAccountDao.class);
        //保存賬戶
        Account account = new Account();
        account.setName("小米");
        account.setMoney(400d);
        dao.saveAccount(account);
        //提交事務
        session.commit();
        //關閉資源
        session.close();
        in.close();
    }
}

    運行截圖：