[Bean] Spring 에서 Bean 등록 방법

1. xml 을 이용한 등록 방법 - setter 이용

1) applicationContext.xml

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<bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate">     <property name="sqlMapClient" ref="sqlMapClient"/> </bean>   <bean id="loginDAO" class="com.mungchung.sample.login.LoginDAOImpl">     <property name="sqlMapClientTemplate" ref="sqlMapClientTemplate"/> </bean>

 2) Bean

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public class LoginDAOImpl implements LoginDAO {     private SqlMapClientTemplate sqlMapClientTemplate;       public void setSqlMapClientTemplate(SqlMapClientTemplate sqlMapClientTemplate) {         this.sqlMapClientTemplate = sqlMapClientTemplate;     } }

 

 

2. xml 을 이용한 등록 방법 - 생성자 이용

1) applicationContext.xml

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<bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate">     <property name="sqlMapClient" ref="sqlMapClient"/> </bean>   <bean id="loginDAO" class="com.mungchung.sample.login.LoginDAOImpl">     <constructor-arg name="sqlMapClientTemplate" ref="sqlMapClientTemplate"/> </bean>

2) Bean

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public class LoginDAOImpl implements LoginDAO {     private SqlMapClientTemplate sqlMapClientTemplate;       public LoginDAOImpl(SqlMapClientTemplate sqlMapClientTemplate) {         this.sqlMapClientTemplate = sqlMapClientTemplate;     } }

 

 

3. 어노테이션 이용 - 직접 Bean 등록

1) servlet-context.xml

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<context:annotation-config/> <bean id="loginDAO" class="com.mungchung.sample.login.LoginDAOImpl"/>

2) Bean

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public class LoginDAOImpl implements LoginDAO {     @Autowired     private SqlMapClientTemplate sqlMapClientTemplate; }

 

 

4. 어노테이션 이용 - Component-Scan 이용

1) servlet-context.xml

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<context:component-scan base-package="com.mungchung.sample.login"/>

2) Bean

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@Repository public class LoginDAOImpl implements LoginDAO {     @Autowired     private SqlMapClientTemplate sqlMapClientTemplate; }

출처 : http://www.mungchung.com/xe/spring/21198