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import java.util.Arrays;
import javax.tools.SimpleJavaFileObject;
import javax.tools.JavaFileObject;
import javax.tools.JavaCompiler;
import javax.tools.ToolProvider;
import javax.tools.DiagnosticCollector;
import java.net.URI;
/**
* Description:
* <br/>ÍøÕ¾: <a href="http://www.crazyit.org" mce_href="http://www.crazyit.org">·è¿ñJavaÁªÃË</a>
* <br/>Copyright (C), 2001-2010, Leeyohn
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Leeyohn leeyohn@hotmail.com
* @version 1.0
*/
public class MyClassLoader
extends ClassLoader
{
@Override
public Class<?> findClass(String str) throws ClassNotFoundException
{
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
//ÓÃÓÚÕï¶ÏÔ´´úÂë±àÒë´íÎóµÄ¶ÔÏó
DiagnosticCollector diagnostics = new DiagnosticCollector();
//ÄÚ´æÖеÄÔ´´úÂë±£´æÔÚÒ»¸ö´ÓJavaFileObject¼Ì³ÐµÄÀàÖÐ
JavaFileObject file = new JavaSourcefromString("Temp", str.toString());
Iterable compilationUnits = Arrays.asList(file);
//½¨Á¢Ò»¸ö±àÒëÈÎÎñ
JavaCompiler.CompilationTask task = compiler.getTask(null, null, null, null, null, compilationUnits);
//±àÒëÔ´³ÌÐò
boolean result = task.call();
if (result)
{
return Class.forName("Temp");
}
return null;
}
}
class JavaSourcefromString extends SimpleJavaFileObject
{
private String name;
private String code;
public JavaSourcefromString(String name, String code)
{
super(URI.create("strin


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