配置文件：
<?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:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean id="sequenceGenerator" class="com.wfb.beans.SequenceGenerator" dependency-check="default">
<property name="prefix" value="30"></property>
<property name="suffix" value="A"></property>
<property name="initial" value="1000"></property>
<property name="cb" ref="childBean"></property>
<constructor-arg type="java.lang.String" index="0" value="10000"></constructor-arg>
<constructor-arg index="1" value="A"></constructor-arg>
<constructor-arg index="2" value="1000"></constructor-arg>
</bean>
<bean id="childBean" class="com.wfb.beans.ChildBean">
</bean>
</beans>
类：
package com.wfb.beans;
public class SequenceGenerator {
private String prefix;
private String suffix;
private int initial;
private int counter;
private ChildBean cb;
public void setCb(ChildBean cb) {
this.cb = cb;
}
public SequenceGenerator() {
}
public SequenceGenerator(String p,String s,int i){
prefix=p;
suffix=s;
initial=i;
}
public void setPrefix(String prefix) {
this.prefix = prefix;
}
public void setSuffix(String suffix) {
this.suffix = suffix;
}
public void setInitial(int initial) {
this.initial = initial;
}
public void setCounter(int counter) {
this.counter = counter;
}
public synchronized String getSequence(){
StringBuilder sb=new StringBuilder();
sb.append(prefix);
sb.append(initial+counter++);
sb.append(suffix);
return sb.toString();
}
}
package com.wfb.beans;
public class ChildBean {
}
package com.wfb.beans.test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.wfb.beans.SequenceGenerator;
public class test {
public static void main(String[] args) {
ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
SequenceGenerator sg=(SequenceGenerator) context.getBean("sequenceGenerator");
System.out.println(sg.getSequence());
System.out.println(sg.getSequence());
}
}