java反射调用配置文件构造类对象，使用其方法

 1 package day16;
 2 import java.io.FileInputStream;
 3 import java.io.FileNotFoundException;
 4 import java.io.IOException;
 5 import java.util.Properties;
 6 import java.lang.reflect.*;
 7 public class ReflectionTest3{
 8     public static void main(String[] args){
 9 
10         Properties pro=new Properties();
11         Class c=null;
12         
13         try {
14             pro.load(new FileInputStream("./day16/config.txt"));
15             c=Class.forName(pro.getProperty("ClassName"));
16             Object obj=c.newInstance();
17             
18             Field f=c.getDeclaredField(pro.getProperty("FieldName"));
19             f.setAccessible(true);
20             f.set(obj,pro.getProperty("FieldValue"));
21             
22             Class cc=Class.forName(pro.getProperty("MethodParameterType"));
23             Method m=c.getDeclaredMethod(pro.getProperty("MethodName"),cc);
24             m.invoke(obj,pro.getProperty("MethodParameterValue"));
25         } catch (Exception e) {
26             // TODO Auto-generated catch block
27             e.printStackTrace();
28         } 
29         
30         
31     }
32 }