该楼层疑似违规已被系统折叠 隐藏此楼查看此楼

----------------------------------------------------------------------------------

--ognl:对象表达式语言，可以用一个表达式快速地访问一个对象的属性，还可以调用对象的方法

----------------------------------------------------------------------------------

学习struts2时，遇到了这个jar包，所以先研究一下。

----------------------------------------------------------------Address.java

package com.framework.model;

public class Address

{

public String Port;

public String Name;

public Address(String port,String name)

{

this.Port = port;

this.Name = name;

}

public String toString()

{

return Port+"-"+Name;

}

}

----------------------------------------------------------------User.java

package com.framework.model;

public class User

{

public String Name;

public Address Address;

public void setAddress(Address addr)

{

this.Address = addr;

}

public User(String name)

{

this.Name = name;

}

}

----------------------------------------------------------------

package com.framework;

import ognl.Ognl;

import ognl.OgnlException;

import com.framework.model.*;

//---------------------------------------------------------luozhiping:ognl表达式测试

public class ognltest

{

public static void main(String[]args)

{

System.out.println("luo");

User user = new User("luozhiping");

Address addr = new Address("337008","江西萍乡上栗长平乡明星村");

user.setAddress(addr);

try

{

//获取user对象的Name属性

System.out.println(Ognl.getValue("Name", user));

System.out.println(Ognl.getValue("Address", user));

System.out.println(Ognl.getValue("Address.Port", user));

}

catch (OgnlException e)

{

e.printStackTrace();

}

}

}