ognl表达式#号_ognl表达式和el表达式_ognl表达式(3)

public class OGNLDemo3 {
	//测试赋值
	@Test
	public void testOGNL1() throws Exception{
		User user = new User();

		Ognl.setValue("username", user, "张三");
		System.out.println(user.getUsername());
	}

	@Test
	public void testOGNL2() throws Exception{
		User user = new User();

		Map context = new HashMap();
		context.put("u1", user);

		Ognl.setValue("#u1.username", context, new Object(), "张三");
		System.out.println(user.getUsername());
	}

	@Test
	public void testOGNL3() throws Exception{
		User user = new User();

		Map context = new HashMap();
		context.put("u1", user);

		//getValue也可以赋值：利用"="进行赋值
		String value = (String) Ognl.getValue("#u1.username='李四'", context, new Object());
		System.out.println(user.getUsername());
		System.out.println(value);
	}

	@Test
	public void testOGNL4() throws Exception{
		User user = new User();
		User user2 = new User();

		Map context = new HashMap();
		context.put("u1", user);
		context.put("u2", user2);

		//用逗号分隔，同时执行多个表达式
		String value = (String) Ognl.getValue("#u1.username='李四',#u2.username='王五'", context, new Object());
		System.out.println(user.getUsername());
		System.out.println(value);
	}
}

④ 使用OGNL调用对象中的方法

本文来自电脑杂谈，转载请注明本文网址：
http://www.pc-fly.com/a/jisuanjixue/article-31887-3.html