的Java：添加類路徑中CustomClassLoader

Question

我有以下CustomClassLoader

/* 
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*/ 
package Java; 

/** 
* 
* @author noconnor 
*/ 
import java.io.ByteArrayOutputStream; 
import java.io.FileInputStream; 
import java.security.AccessControlContext; 
import java.security.AccessController; 
import java.security.PrivilegedExceptionAction; 
import org.apache.commons.io.FilenameUtils; 

public class CustomClassLoader extends ClassLoader { 

    private static String repoLocation = "C:/TempBINfolder/bin/"; 

    public CustomClassLoader() { 
    } 

    public CustomClassLoader(ClassLoader parent) { 
     super(parent); 
    } 

    @Override 
    protected Class<?> findClass(final String name) 
      throws ClassNotFoundException { 

     AccessControlContext acc = AccessController.getContext(); 

     try { 
      return (Class) AccessController.doPrivileged(
        new PrivilegedExceptionAction() { 

         public Object run() throws ClassNotFoundException { 

          FileInputStream fi = null; 
          try { 

           String fileName = FilenameUtils.getBaseName(name); 
           String path = FilenameUtils.getFullPath(name); 
           setRepoLocation(path); 
           fi = new FileInputStream(getRepoLocation() + fileName + ".class"); 

           ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
           byte[] buffer = new byte[8192]; 
           int read; 
           while ((read = fi.read(buffer)) > 0) { 
            baos.write(buffer, 0, read); 
           } 
           byte[] classBytes = baos.toByteArray(); 

           return defineClass(fileName, classBytes, 0, 
             classBytes.length); 
          } catch (Exception e) { 
           throw new ClassNotFoundException(name); 
          } 
         } 
        }, acc); 
     } catch (java.security.PrivilegedActionException pae) { 
      return super.findClass(name); 
     } 
    } 

    public String getRepoLocation() { 
     return repoLocation; 
    } 

    public void setRepoLocation(String repoLocation) { 
     this.repoLocation = repoLocation; 
    } 
} 

而且它的工作原理找出最班，我遇到了一個問題做。我有以下的Java類

public class IntegerComparator 
      implements Comparator<Integer> 
{ 
    public IntegerComparator(){} 

    public int compare(Integer a, Integer b) 
    { int aValue = a.intValue(); 
     int bValue = b.intValue(); 
     return (aValue - bValue); 
    } 
} 

這個類實現位於同一個項目，因爲這類的自定義比較，但這不是由類加載器和炸彈從加載類拿起了。它不會給出任何錯誤，但如果我添加以下行到類

import java.util.Comparator; 

CustomClassLoader的作品。這導致我相信我錯過了文件的類路徑或類似的東西。有人知道如何解決這個問題嗎？

編輯：這是調用類加載器

Class stringClass = null; 

     for (String file : classFiles) { 
      ClassLoader cls = new CustomClassLoader(ClassLoader.getSystemClassLoader()); 
      try { 
       stringClass = cls.loadClass(file); 
       tempList.add(stringClass); 
      } catch (ClassNotFoundException ex) { 
       Logger.getLogger(CompilerForm.class.getName()).log(Level.SEVERE, null, ex); 
      } 
     } 

的代碼，我希望它遍歷到，如果有一個以上的文件

編輯加載多個文件： -verbose輸出

[Loaded java.net.MalformedURLException from C:\Program Files\Java\jdk1.7.0_05\jre\lib\rt.jar] 
[Loaded Java.CustomClassLoader$1 from file:/C:/projects/Compiler/Compiler/build/classes/] 
[Loaded java.lang.ClassFormatError from C:\Program Files\Java\jdk1.7.0_05\jre\lib\rt.jar] 
[Loaded org.junit.runners.model.MultipleFailureException from file:/C:/projects/Compiler/Compiler/Jar%20Files/junit-4.11-SNAPSHOT-20120416-1530.jar] 
[Loaded org.junit.runner.notification.Failure from file:/C:/projects/Compiler/Compiler/Jar%20Files/junit-4.11-SNAPSHOT-20120416-1530.jar] 
[Loaded java.io.StringWriter from C:\Program Files\Java\jdk1.7.0_05\jre\lib\rt.jar] 
[Loaded org.junit.runner.notification.RunNotifier$4 from file:/C:/projects/Compiler/Compiler/Jar%20Files/junit-4.11-SNAPSHOT-20120416-1530.jar] 
[Loaded org.junit.runner.notification.RunNotifier$7 from file:/C:/projects/Compiler/Compiler/Jar%20Files/junit-4.11-SNAPSHOT-20120416-1530.jar] 
[Loaded org.junit.runner.notification.RunNotifier$2 from file:/C:/projects/Compiler/Compiler/Jar%20Files/junit-4.11-SNAPSHOT-20120416-1530.jar] 

Answer 1

如果添加什麼-verbose作爲參數給運行時的JVM。你會看到類加載細節。