Java匿名类如何反编译

[StunningBoy]

今天尝试的去反编译一下匿名类，结果发现反编译不成功，那么匿名类该如何反编译啊？

反编译工具：jd-gui



反编译结果：
XmlConverter.class ：

package com.alipay.api.internal.parser.xml;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayResponse;
import com.alipay.api.internal.mapping.Converter;
import com.alipay.api.internal.mapping.Converters;
import com.alipay.api.internal.mapping.Reader;
import com.alipay.api.internal.util.XmlUtils;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.w3c.dom.Element;

public class XmlConverter
  implements Converter
{
  public <T extends AlipayResponse> T toResponse(String rsp, Class<T> clazz)
    throws AlipayApiException
  {
    Element root = XmlUtils.getRootElementFromString(rsp);
    return (AlipayResponse)getModelFromXML(root, clazz);
  }
  
  private <T> T getModelFromXML(final Element element, Class<T> clazz)
    throws AlipayApiException
  {
    if (element == null) {
      return null;
    }
    Converters.convert(clazz, new Reader()
    {
      public boolean hasReturnField(Object name)
      {
        Element childE = XmlUtils.getChildElement(element, (String)name);
        return childE != null;
      }
      
      public Object getPrimitiveObject(Object name)
      {
        return XmlUtils.getElementValue(element, (String)name);
      }
      
      public Object getObject(Object name, Class<?> type)
        throws AlipayApiException
      {
        Element childE = XmlUtils.getChildElement(element, (String)name);
        if (childE != null) {
          return XmlConverter.this.getModelFromXML(childE, type);
        }
        return null;
      }
      
      public List<?> getListObjects(Object listName, Object itemName, Class<?> subType)
        throws AlipayApiException
      {
        List<Object> list = null;
        Element listE = XmlUtils.getChildElement(element, (String)listName);
        if (listE != null)
        {
          list = new ArrayList();
          List<Element> itemEs = XmlUtils.getChildElements(listE, (String)itemName);
          for (Element itemE : itemEs)
          {
            Object obj = null;
            String value = XmlUtils.getElementValue(itemE);
            if (String.class.isAssignableFrom(subType))
            {
              obj = value;
            }
            else if (Long.class.isAssignableFrom(subType))
            {
              obj = Long.valueOf(value);
            }
            else if (Integer.class.isAssignableFrom(subType))
            {
              obj = Integer.valueOf(value);
            }
            else if (Boolean.class.isAssignableFrom(subType))
            {
              obj = Boolean.valueOf(value);
            }
            else if (Date.class.isAssignableFrom(subType))
            {
              DateFormat format = new SimpleDateFormat(
                "yyyy-MM-dd HH:mm:ss");
              try
              {
                obj = format.parse(value);
              }
              catch (ParseException e)
              {
                throw new AlipayApiException(e);
              }
            }
            else
            {
              obj = XmlConverter.this.getModelFromXML(itemE, subType);
            }
            if (obj != null) {
              list.add(obj);
            }
          }
        }
        return list;
      }
    });
  }
}

XmlConverter$1.class：

package com.alipay.api.internal.parser.xml;

import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.mapping.Reader;
import com.alipay.api.internal.util.XmlUtils;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.w3c.dom.Element;

final class XmlConverter$1
  implements Reader
{
  XmlConverter$1(XmlConverter paramXmlConverter, Element paramElement) {}
  
  public boolean hasReturnField(Object name)
  {
    Element childE = XmlUtils.getChildElement(this.val$element, (String)name);
    return childE != null;
  }
  
  public Object getPrimitiveObject(Object name)
  {
    return XmlUtils.getElementValue(this.val$element, (String)name);
  }
  
  public Object getObject(Object name, Class<?> type)
    throws AlipayApiException
  {
    Element childE = XmlUtils.getChildElement(this.val$element, (String)name);
    if (childE != null) {
      return XmlConverter.access$0(this.this$0, childE, type);
    }
    return null;
  }
  
  public List<?> getListObjects(Object listName, Object itemName, Class<?> subType)
    throws AlipayApiException
  {
    List<Object> list = null;
    Element listE = XmlUtils.getChildElement(this.val$element, (String)listName);
    if (listE != null)
    {
      list = new ArrayList();
      List<Element> itemEs = XmlUtils.getChildElements(listE, (String)itemName);
      for (Element itemE : itemEs)
      {
        Object obj = null;
        String value = XmlUtils.getElementValue(itemE);
        if (String.class.isAssignableFrom(subType))
        {
          obj = value;
        }
        else if (Long.class.isAssignableFrom(subType))
        {
          obj = Long.valueOf(value);
        }
        else if (Integer.class.isAssignableFrom(subType))
        {
          obj = Integer.valueOf(value);
        }
        else if (Boolean.class.isAssignableFrom(subType))
        {
          obj = Boolean.valueOf(value);
        }
        else if (Date.class.isAssignableFrom(subType))
        {
          DateFormat format = new SimpleDateFormat(
            "yyyy-MM-dd HH:mm:ss");
          try
          {
            obj = format.parse(value);
          }
          catch (ParseException e)
          {
            throw new AlipayApiException(e);
          }
        }
        else
        {
          obj = XmlConverter.access$0(this.this$0, itemE, subType);
        }
        if (obj != null) {
          list.add(obj);
        }
      }
    }
    return list;
  }
}

反编译出来的结果都会报错，看的一头雾水啊，没有$的那个class反编译出来后，缺少return；而$1.class反编译生成的java类中对象都成了object，还有方法，变量都带有$。

[attilax]

呵呵，反编译就是这样子了，会丢失一些信息的，不能完全的得到源码。。不过基本也差不多了，自己补全丢失的信息吧。。

[jack_qdb]

JD 工具还瞒好用的，

[howsun_zh]

试试这个：连Java8也不放过的超牛Java字节码反编译工具：Procyon-Decompiler

[hz_1943]

"Converters.convert(clazz, new Reader()"这一句，Reader是一个接口，匿名内部类就是它了。