ognl简单应用

package com.test.ognl;

import java.util.List;
import ognl.Ognl;
import ognl.OgnlContext;

public class TestOgnl {
	public static void main(String []a) throws Exception {
//		TestOgnl.testOgnl();
//		testOgnlStatic();
		testListOgnl();
	}
	
	public static void testOgnl() throws Exception {
		OgnlContext content = new OgnlContext();
		Person p = new Person();
		p.setName("生");
		
		content.put("personAlias", p);
		
		String expression = "personAlias.name";
		Object obj = Ognl.parseExpression(expression);
		System.out.println(Ognl.getValue(obj, content).toString());
	}
	
	public static void testOgnlStatic() throws Exception{
		Object obj = Ognl.parseExpression("@com.test.ognl.Person@getCity()");
		System.out.println(Ognl.getValue(obj, null).toString());
		
		Object expression = Ognl.parseExpression("@com.test.ognl.Person@country");
		System.out.println(Ognl.getValue(expression, null).toString());
	}
	
	@SuppressWarnings("unchecked")
	public static void testListOgnl() throws Exception{
		String expression = "{1, 2, 3, 4}";
		Object obj = Ognl.parseExpression(expression);
		List<Integer> list = (List)Ognl.getValue(obj, null);
		for(Integer i : list) {
			System.out.println(i);
		}
	}
}

package com.test.ognl;

public class Person {
	private String name;
	public static String country ="china";
	
	public Person(){}

	public String getName() {
		return name;
	}

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

	public static String getCity() {
		return "tianjin";
	}
}