java中用spring實現數組類型輸出

java 中的幾個數組類型

一、Department類

package com.yy.collection;

import java.util.List;
import java.util.Map;
import java.util.Set;

public class Department {
 private String name;
 private  String [] empName;
 private List<Employee> empList;
 private Set<Employee>  empsets;
 private Map<String,Employee> empMaps;   
 
public Map<String, Employee> getEmpMaps() {
	return empMaps;
}
public void setEmpMaps(Map<String, Employee> empMaps) {
	this.empMaps = empMaps;
}
public Set<Employee> getEmpsets() {
	return empsets;
}
public void setEmpsets(Set<Employee> empsets) {
	this.empsets = empsets;
}
public List<Employee> getEmpList() {
	return empList;
}
public void setEmpList(List<Employee> empList) {
	this.empList = empList;
}
public String[] getEmpName() {
	return empName;
}
public void setEmpName(String[] empName) {
	this.empName = empName;
}
public String getName() {
	return name; 
}
public void setName(String name) {
	this.name = name;
}


}

　　2.Employee類

package com.yy.collection;

public class Employee {
 private String name;
 private int id;

public String getName() {
	return name;
}

public int getId() {
	return id;
}

public void setId(int id) {
	this.id = id;
}

public void setName(String name) {
	this.name = name;
}
}

　　3.beans.xml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"  
    xmlns:mvc="http://www.springframework.org/schema/mvc"  
    xmlns:context="http://www.springframework.org/schema/context"  
    xmlns:util="http://www.springframework.org/schema/util"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd  
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
            http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"> 
       <!-- 在容器文件中配置bean(service/dao/domain/action/數據源) -->
      <bean id="department"  class="com.yy.collection.Department">
      <property name ="name" value="財務部"></property>
      
      <!-- 給list注入值 -->
      
      <property name="empName">
      <list>
      <value>小明</value>
      <value>小小明</value>
      <value>迷你明</value>      
      </list>
      
      </property>
      <!-- 給list注入值 -->
      <property name="empList">
      <list>
      <ref bean="emp1"/>
      <ref bean="emp2"/>
       
       </list>
      </property>
      <!-- 給set注入值 -->
 <property name="empsets">     
      <set>
      <ref bean="emp2"/>
      <ref bean="emp1"/>
      </set>
      </property>
  <!-- 給map注入值   只要map不同，就能夠顯示    -->
  <property name="empMaps">
 <map>
 <entry key="11" value-ref="emp1" />
 <entry key="22" value-ref="emp2"/>
</map> 
</property>    
</bean>
<bean id="emp1" class="com.yy.collection.Employee">
  <property name="name" value="地址1" />
 <property name="id" value="1" />
 </bean>
 <bean id="emp2" class="com.yy.collection.Employee">
  <property name="name" value="地址2"/>
  <property name="id" value="2" />
</bean>
</beans>

　　4.應用App1類

package com.yy.collection;

import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
	  ApplicationContext ctx=new ClassPathXmlApplicationContext("com/yy/collection/beans.xml");
	  Department department=(Department) ctx.getBean("department");
	   System.out.println(department.getName());
	   for (String emName:department.getEmpName()){
		   System.out.println(emName);
		   
	   }
	   System.out.println("******經過list集合取出數據*****");
	   for(Employee array:department.getEmpList()){
		   System.out.println( "name="+array.getName()+""+array.getId());
		   
	   }
	   System.out.println("******經過set集合取出數據*****");
	   for(Employee array:department.getEmpsets()){
		   System.out.println( "name="+array.getName());
		   
	   }
	  
	   System.out.println("*****經過map集合取出數據*****");
	   //1.迭代器
	   Map<String,Employee>empmaps=department.getEmpMaps();
	     Iterator it=empmaps.keySet().iterator();
	     while(it.hasNext()){
	    	String key=(String) it.next();
	    	 Employee emp=empmaps.get(key);
	    	 System.out.println("key="+key+""+emp.getName());
	    	 
	     }
	   
	   
	    //二、簡潔方法
	
        for( Entry<String, Employee> entry1:department.getEmpMaps().entrySet()){
		System.out.println(entry1.getKey()+""+entry1.getValue().getName());
         }
	}

}