Java Web项目整合Spring3和Mybatis3初步应用

一、导入的JAR包：

<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-beanutils-1.8.3.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-collections-3.2.1.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-dbcp-1.4.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-lang-2.6.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-logging-1.1.1.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-pool-1.5.6.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/ezmorph-1.0.6.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/log4j-1.2.16.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/json-lib-2.4-jdk15.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/slf4j-api-1.6.1.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/slf4j-log4j12-1.6.1.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/mybatis-3.0.6.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/mybatis-spring-1.0.2.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/mysql-connector-java-5.1.18-bin.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.aop-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.asm-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.aspects-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.beans-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.context-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.context.support-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.core-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.expression-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.jdbc-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.transaction-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.web-3.0.6.RELEASE.jar"/>
<classpathentry kind="lib" path="WebContent/WEB-INF/lib/org.springframework.web.servlet-3.0.6.RELEASE.jar"/>

二、XML 配置文件

    applicationContext.xml

<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-3.0.xsd">

<!--配置数据源，MySQL数据库，使用DBCP数据库连接池-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<!--MySQL数据源驱动类-->
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<!--MySQL数据库连接URL，字符编码UTF-8-->
<property name="url" value="jdbc:mysql://localhost:3306/mol?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull" />
<!--数据库连接用户和密码-->
<property name="username" value="dev" />
<property name="password" value="123456" />
<!--最大连接数-->
<property name="maxActive" value="100" />
<!--空闲最大连接数-->
<property name="maxIdle" value="30" />
<!--连接超时时限，毫秒单位-->
<property name="maxWait" value="30000" />
<property name="defaultAutoCommit" value="true" />
</bean>

<!--Mybatis的SqlSessionFactory工厂Bean-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--设置Mybatis配置文件-->
<property name="configLocation" value="classpath:conf/mybatis-config.xml"/>
<!--设置数据源-->
<property name="dataSource" ref="dataSource" />
</bean>

<!--Mybatis的映射器Mapper工厂Bean-->
<bean id="regUserDAO" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
<!--设置映射器接口-->
<property name="mapperInterface" value="com.leading.mol.client.dao.usermanage.RegisterUserDAO" />
</bean>

<!--将映射器Bean注入Service类-->
<bean id="userLoginService" class="com.leading.mol.client.service.usermanage.impl.UserLoginServiceImpl">
<property name="regUserDAO" ref="regUserDAO" />
</bean>
</beans>

    Spring在web.xml的配置

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:conf/spring/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

    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>
<mappers>
<mapper resource="com/leading/mol/client/dao/usermanage/mapper/RegisterUser.xml"/>
</mappers>
</configuration>

三、Mybatis的Mapper配置文件和接口

    Mybatis的Mapper配置文件

    <?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.leading.mol.client.dao.usermanage.RegisterUserDAO">
<resultMap id="registerUserList" type="com.leading.mol.client.domain.usermanage.RegisterUser" >
<id property="userId" column="userid"/>
<result property="username" column="username"/>
<result property="truename" column="truename"/>
<result property="password" column="password"/>
<result property="email" column="email"/>
</resultMap>

<select id="getUserInfoByAccount" resultMap="registerUserList" parameterType="String">
select userid, username, truename, password, email
from mol_register_users
where email=#{email}
</select>

<insert id="insertUser" parameterType="com.leading.mol.client.domain.usermanage.RegisterUser">
insert into mol_register_users (username, truename, password, email, comment)
values (#{username}, #{truename}, #{password}, #{email}, #{comment})
</insert>
</mapper>

    Mybatis的Mapper接口

public interface RegisterUserDAO
{

/**
* 功能描述，根据邮箱查询注册用户
* @param email
* @return
* @throws Exception
*/
public List<RegisterUser> getUserInfoByAccount(String emailAccout) throws Exception;

/**
* 功能描述，新增注册用户记录
*/
public int insertUser(RegisterUser regUser) throws Exception;

}

四、获取Bean

UserLoginService userLoginService = (UserLoginService) WebApplicationContextUtils
.getRequiredWebApplicationContext(
request.getSession().getServletContext()).getBean(
"userLoginService");