/**
*
*/
package dynamicLoader;
import java.io.File;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;
/**
* @author daniel
*
*/
public class LoadByUrl {
/**
* @param args
* @throws MalformedURLException
*/
public static void main(String[] args) throws MalformedURLException {
new LoadByUrl();
}
LoadByUrl(){
URLClassLoader urlLoader;
List<URL> urls = new ArrayList<URL>();
URL[] u;
File file= new File("F:\\Version\\bin\\dynamicLoader\\DemoClass\\");
try {
urls.add(file.toURL());
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
u = (URL[]) urls.toArray( new URL[urls.size()]);
urlLoader = URLClassLoader.newInstance(u, LoadByUrl. class .getClassLoader());
try {
Class cls = urlLoader.loadClass( "DemoClass" );
Object obj = cls.newInstance();
Method mth= cls.getMethod( "run" );
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
*
*/
package dynamicLoader;
import java.io.File;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;
/**
* @author daniel
*
*/
public class LoadByUrl {
/**
* @param args
* @throws MalformedURLException
*/
public static void main(String[] args) throws MalformedURLException {
new LoadByUrl();
}
LoadByUrl(){
URLClassLoader urlLoader;
List<URL> urls = new ArrayList<URL>();
URL[] u;
File file= new File("F:\\Version\\bin\\dynamicLoader\\DemoClass\\");
try {
urls.add(file.toURL());
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
u = (URL[]) urls.toArray( new URL[urls.size()]);
urlLoader = URLClassLoader.newInstance(u, LoadByUrl. class .getClassLoader());
try {
Class cls = urlLoader.loadClass( "DemoClass" );
Object obj = cls.newInstance();
Method mth= cls.getMethod( "run" );
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
本文转自danni505 51CTO博客，原文链接：http://blog.51cto.com/danni505/213345，如需转载请自行联系原作者
