Spring中類型自動裝配--byType
阿新 • • 發佈：2017-08-09
log ext setw println create cat ssp XML ret
在Spring中，“類型自動裝配”的意思是如果一個bean的數據類型與其它bean屬性的數據類型相同，將自動兼容裝配它。
例如，一個“persion” bean 公開以“ability”類數據類型作為屬性，Spring會找到ability類相同的數據類型，並自動裝配它的Bean。如果沒有匹配找到，它什麽也不做。
package auto_w; /** * Created by luozhitao on 2017/8/8. */ public class ablity { public void setWrite_able1(String write_able1) {this.write_able1 = write_able1; } public String getWrite_able1() { return write_able1; } private String write_able1; }
package auto_w; /** * Created by luozhitao on 2017/8/8. */ public class Person { public void setLity(ablity lity) { this.lity = lity; }public ablity getLity() { return lity; } private ablity lity; }
package auto_w; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /** * Created by luozhitao on 2017/8/8. */ public class p_app { publicstatic void main(String [] args){ ApplicationContext context=new ClassPathXmlApplicationContext("beans.xml"); Person person=(Person)context.getBean("person"); System.out.println(person.getLity().getWrite_able1()); } }
<bean id="person" class="auto_w.Person" autowire="byType"></bean> <bean id="ablity" class="auto_w.ablity"> <property name="write_able1" value="write"/> </bean>
Spring中類型自動裝配--byType