错误：本地类不兼容：流classdec serialversionUID = ....，本地类serialversionUID = [英] error: local class incompatible: stream classdec serialversionUID= ...., local class serialversionUID=

问题描述

我有一个可序列化的Java类，当我添加以下方法之一。我得到这个错误

本地类不兼容：类classdec serialversionUID = ...，本地类serialversionUID = ...
$

  public HashMap< Long，BookIndex> getBookIndexMap（）{
 return bookIndexMap; 
} 
 
 public String getDataFileName（）{
 return dataFileName; 
 
 $ / code $ 
 
 
 
这是什么原因造成的？怎样才能纠正？
解决方案
这篇文章可能会有帮助：  $ b   http://lingpipe-blog.com/2010/05/04/upgrading-java -class-backward-compatible-serialization /  
 
 
通过改变类的方法签名，以前的序列化表单是不兼容的，除非这些类具有相同的serialVersionUID。 p> 
I have a serializable java class and when I add either of the following methods. I get this error


" local class incompatible: stream classdec serialversionUID= ...., local class serialversionUID=..."

added methods:
public HashMap<Long, BookIndex> getBookIndexMap() {
    return bookIndexMap;
}

public String getDataFileName() {
    return dataFileName;
}
what is causing this and how can I correct it?
解决方案
This article may be helpful:

http://lingpipe-blog.com/2010/05/04/upgrading-java-classes-backward-compatible-serialization/

By changing the class's method signatures, previous serialized forms are incompatible unless the classes have the same serialVersionUID.

                        
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