spring的Ioc提供了对对象的动态创建，并且提供了对常见数据类型的处理功能。如:基本数据类型及其封装类，字符串，集合，Properties等。
Java类：
public
class Test {
private Integer id;
private String name;
private List<String> phone;
private Set<String> email;
private Map<String, Double> score;
private Properties friends;
//一系列的setter.getter方法
private Integer id;
private String name;
private List<String> phone;
private Set<String> email;
private Map<String, Double> score;
private Properties friends;
//一系列的setter.getter方法
}
配置文件 test.xml
<
beans
>
< bean id ="student" class ="com.cernet.spring.first.entity.Test" >
< property name ="id" >
< value >1 </ value >
</ property >
< property name ="name" >
< value >yangfei </ value >
</ property >
< property name ="phone" >
< list >
< value >phone1 </ value >
< value >phone2 </ value >
</ list >
</ property >
< property name ="email" >
< set >
< value >emailA </ value >
< value >emailB </ value >
</ set >
</ property >
< property name ="score" >
< map >
< entry >
< key >
< value >Core Java </ value >
</ key >
< value >100 </ value >
</ entry >
< entry >
< key >
< value >Oracle </ value >
</ key >
< value >90 </ value >
</ entry >
</ map >
</ property >
< property name ="friends" >
< props >
< prop key ="111" >lisi </ prop >
< prop key ="111" >wangwu </ prop >
</ props >
</ property >
</ bean >
</ beans >
< bean id ="student" class ="com.cernet.spring.first.entity.Test" >
< property name ="id" >
< value >1 </ value >
</ property >
< property name ="name" >
< value >yangfei </ value >
</ property >
< property name ="phone" >
< list >
< value >phone1 </ value >
< value >phone2 </ value >
</ list >
</ property >
< property name ="email" >
< set >
< value >emailA </ value >
< value >emailB </ value >
</ set >
</ property >
< property name ="score" >
< map >
< entry >
< key >
< value >Core Java </ value >
</ key >
< value >100 </ value >
</ entry >
< entry >
< key >
< value >Oracle </ value >
</ key >
< value >90 </ value >
</ entry >
</ map >
</ property >
< property name ="friends" >
< props >
< prop key ="111" >lisi </ prop >
< prop key ="111" >wangwu </ prop >
</ props >
</ property >
</ bean >
</ beans >
测试代码：
public
static
void main(String[] args) {
BeanFactory factory= new XmlBeanFactory( new ClassPathResource( "test.xml"));
Student stu=(Student)factory.getBean( "student");
System.out.println( "Id========"+stu.getId());
System.out.println(stu.getName());
List<String> l=stu.getPhone();
Iterator it=stu.getEmail().iterator();
Map m=stu.getScore();
}
BeanFactory factory= new XmlBeanFactory( new ClassPathResource( "test.xml"));
Student stu=(Student)factory.getBean( "student");
System.out.println( "Id========"+stu.getId());
System.out.println(stu.getName());
List<String> l=stu.getPhone();
Iterator it=stu.getEmail().iterator();
Map m=stu.getScore();
}
对于一些更复杂的或者不便处理的数据类型，spring提供了属性编辑器功能由用户自己进行处理。总之，它会尽力处理Java 中遇到的所有情况。
本文转自NightWolves 51CTO博客，原文链接：http://blog.51cto.com/yangfei520/244814
，如需转载请自行联系原作者
