Spring通過XML文件，完成bean配置和bean間依賴關系的注入。
1.需要用到的包：
spring-core.jar
spring-beans.jar
spring-context.jar
commons-logging.jar
2.Bean文件
HelloBean.java
package?cn.blogjava.hello;
import?java.util.Date;
public?class?HelloBean?{
????
????private?String?helloWord;
????private?String?name;
????private?Date?date;
????
????public?HelloBean()?{
????????
????}
????public?HelloBean(String?helloWord,?String?name)?{
????????this.helloWord?=?helloWord;
????????this.name?=?name;
????}????
????
????public?String?getHelloWord()?{
????????return?helloWord;
????}
????public?void?setHelloWord(String?helloword)?{
????????this.helloWord?=?helloword;
????}
????public?String?getName()?{
????????return?name;
????}
????public?void?setName(String?name)?{
????????this.name?=?name;
????}
????
????public?Date?getDate()?{
????????return?date;
????}
????public?void?setDate(Date?date)?{
????????this.date?=?date;
????}
}
配置文件
beans-config.xml
<?xml?version="1.0"?encoding="UTF-8"?>
<!DOCTYPE?beans?PUBLIC?"-//SPRING/DTD?BEAN/EN"
????"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
????<bean?id="dateBean"?class="java.util.Date"/>
????<bean?id="helloBean"?class="cn.blogjava.hello.HelloBean"?>
????????<property?name="helloWord">
????????????<value>Hello!</value>
????????</property>
????????<property?name="name">
????????????<value>YYY!</value>
????????</property>????
????????<property?name="date">
????????????<ref?bean="dateBean"?/>
????????</property>????????????????
????</bean>
</beans>
3.測試程序
SpringDemo.java
package?cn.blogjava.hello;
import?org.springframework.context.ApplicationContext;
import?org.springframework.context.support.FileSystemXmlApplicationContext;
public?class?SpringDemo?{
????public?static?void?main(String[]?args)?{
????????ApplicationContext?context?=?
????????????new?FileSystemXmlApplicationContext("beans-config.xml");????????
????????HelloBean?helloBean?=?(HelloBean)context.getBean("helloBean");
????????System.out.print("Name:?");
????????System.out.println(helloBean.getName());
????????System.out.print("Word:?");
????????System.out.println(helloBean.getHelloWord());
????????System.out.println(helloBean.getDate());
????}
}
posted on 2006-07-26 10:09
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