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Èç¹ûÔÚ C:\ ÏÂÃæÓÐÒ»¸ö Findme.class µÄ»°£¬ÊDz»ÊÇÓ¦¸ÃÈçÏÂʹÓÃÄØ£¿
ºóÃæµÄ²ÎÊýÊÇÊ²Ã´ÄØ classForname("C:\\Findme.class")

Ϊʲôµ÷ÊÔµÄʱºò×ÜÊÇû¼ÓÔØ³É¹¦ÄØ£¬¶¼ÊÇ null °¡

Java code:

public class PlanLoader extends ClassLoader {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
PlanLoader pl = new PlanLoader();
Class c = pl.loadClass("C:\\Findme", true);
}

public Class loadClass(String name, boolean resolve ) {
Class clas = null;
clas = this.findLoadedClass(name);

if( clas != null ) {
System.out.println(name);
return clas;
}
}




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classpathÀïÃæ°ÑC:\\Findme.class¼Ó½øÈ¥¾ÃÍêÁË¡£

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classpath=".;C:\Findme"
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java -classpath C:\          PlanLoader

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