使用反射举例

public Object test(String cn){

//根据传的参数创建对象，并且调用对象中所有属性的set方法赋值(赋什么值没有要求)

//最后把这个对象返回

//在方位外面接收到这个对象后强制转为对应的类型 然后调用get方法查看赋值是否成功

}

package d13e1;

import java.lang.reflect.Method;

public class Test {

private int age;
private String name;
private Long id;

public static void main(String[] args) {
Test t = new Test();
t = (Test) t.test("d13e1.Test");
System.out.println(t);
}

public Object test(String cn) {
Object object = null;
try {
object = Class.forName(cn).newInstance();
Class<? extends Object> c = object.getClass();
Method methodint = c.getMethod("setAge", int.class);
Method methodString = c.getMethod("setName", String.class);
Method methodlong = c.getMethod("setId", Long.class);
methodint.invoke(object, 10);
methodlong.invoke(object, 1929018L);
methodString.invoke(object, "小明");
} catch (Exception e) {
e.printStackTrace();
}
return object;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getName() {
return name;
}

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

public Long getId() {
return id;
}

public void setId(Long id) {
this.id = id;
}

@Override
public String toString() {
return "T [age=" + age + ", name=" + name + ", id=" + id + "]";
}

}