JAVA类通过属性给方法赋值

iteye_14071

于 2008-10-31 13:50:01 发布

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文章标签： Java

本文通过一个具体的Java程序示例介绍了如何使用Java反射机制来动态调用类的方法。该示例展示了一种利用反射实现配置化的编程方式，使得程序可以在运行时加载并执行不同的方法。

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

public class TestPro {

public TestPro() {
// TODO Auto-generated constructor stub
}
public void setOk1(Object msg) {
System.out.println(msg);
}
public void setOk2(Object msg) {
System.out.println(msg);
}
/**
* @param args
* @throws NoSuchMethodException
* @throws SecurityException
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
String [] proName = {"Ok1","Ok2"};//this is the properties
String [] proValue = {"this is the first parameter","this is the second parameter"};//this is the properties value or get the value from all elements;
Object tp = new TestPro();//you can set the class from another method such as setClass(new TestPro())
Class cl = tp.getClass();
Class [] parameters = {Object.class};
Method mt;
for(int i=0;i<proName.length;i++) {
mt = cl.getMethod("set" + proName[i], parameters);
mt.invoke(tp, proValue[i]);
}

}

}