java反射

[vvhlj]

Class c = Account.class;

Account account = new Account();

//获取Account实体类中，所有声明的属性
Field[] fields = c.getDeclaredFields();

for(int i = 0 ;i<fields.length;i++)
{

//在迭代时，我怎样才能知道fileds[i]的类型呢
fields[i].set(account,"放入一个Object类型的值");
}

[zhaohuihua]

fields[i].getType();

[oklinsong]

getType()

[vvhlj]

能不能详细点，完成对这个属性的赋值
fields[i].set(account,obj);

[humanity]

private / protected / default 类型的 field 可能不允许访问，

需要 fields[i].setAccessible(true) 然后再 fields[i].set(xxxx, "FEFWEFWEF");

[若鱼1919]

import java.lang.reflect.Field;
class Account{
	private int id;
	private String name;
	public String toString(){
		return name+","+id;
	}
}
public class ReflectTest {
	public static void main(String[] args)throws Exception {
		Account account = new Account();
		Class cls = Account.class;
		Field[] fields = cls.getDeclaredFields();
		for(Field field : fields){
			field.setAccessible(true);
			Class fieldType = field.getType();
			if(fieldType == int.class){
				field.set(account, 1);
			}else if(fieldType == String.class){
				field.set(account, "aaaaaa");
			}
		}
		System.out.println(account);
	}
}