通过Java反射调用方法

import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;

/**
* Created by IntelliJ IDEA.
* File: TestRef.java
* User: leizhimin
* Date: 2008-1-28 14:48:44
*/
public class TestRef {

/**
*通过类地址来调用
*/
public void test() {
try {
Class clazz = Class.forName("com.xlwz.wizard.impl.ChooseJdkprocess");
Method getRootPath = clazz.getDeclaredMethod("getRootPath");
System.out.println(getRootPath.invoke(clazz.newInstance()));
} catch (Exception e) {
}
}

public static void main(String args[]) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
Foo foo = new Foo("这个一个Foo对象！");
Class clazz = foo.getClass();
Method m1 = clazz.getDeclaredMethod("outInfo");
Method m2 = clazz.getDeclaredMethod("setMsg", String.class);
Method m3 = clazz.getDeclaredMethod("getMsg");
m1.invoke(foo);
m2.invoke(foo, "重新设置msg信息！");
String msg = (String) m3.invoke(foo);
System.out.println(msg);
}
}

class Foo {
private String msg;

public Foo(String msg) {
this.msg = msg;
}

public void setMsg(String msg) {
this.msg = msg;
}

public String getMsg() {
return msg;
}

public void outInfo() {
System.out.println("这是测试Java反射的测试类");
}
}

public static void Test(){
System.out.println("123");
}

public static void main(String[] args) throws Exception {
Class c;
c = Class.forName("link.Test3");
Method m = c.getMethod("Test");
m.invoke(c);
}

这是测试Java反射的测试类
重新设置msg信息！

Process finished with exit code 0