用于序列化和反序列化的xstream错误

我正在Java中使用xStream来从java库序列化java对象并在客户端反序列化它。用于序列化和反序列化的xstream错误

我有几个问题：

如果我不喜欢这样写道：

XStream xstream = new XStream(); 
xstream.setMode(XStream.ID_REFERENCES); 
xstream.autodetectAnnotations(true); 
Writer writer = new FileWriter(xmlFile);   
writer.write(xstream.toXML(myObject)); 
writer.close();

=>序列化是确定的，但反序列化：Exception in thread "main" com.thoughtworks.xstream.io.StreamException: : only whitespace content allowed before start tag and not . (position: START_DOCUMENT seen .... @1:1)

，如果我不喜欢这样写道：

XStream xstream = new XStream(); 
xstream.setMode(XStream.NO_REFERENCES); 
xstream.autodetectAnnotations(true); 
Writer writer = new FileWriter(xmlFile);   
writer.write(xstream.toXML(myObject)); 
writer.close();

=>我得到序列化问题：Exception in thread "main" com.thoughtworks.xstream.io.StreamException: : only whitespace content allowed before start tag and not . (position: START_DOCUMENT seen .... @1:1) at com.thoughtworks.xstream.io.xml.XppReader.pullNextEvent(XppReader.java:78) at com.thoughtworks.xstream.io.xml.AbstractPullReader.readRealEvent(AbstractPullReader.java:137) at com.thoughtworks.xstream.io.xml.AbstractPullReader.readEvent(AbstractPullReader.java:130) at com.thoughtworks.xstream.io.xml.AbstractPullReader.move(AbstractPullReader.java:109) at com.thoughtworks.xstream.io.xml.AbstractPullReader.moveDown(AbstractPullReader.java:94) at com.thoughtworks.xstream.io.xml.XppReader.<init>(XppReader.java:48) at com.thoughtworks.xstream.io.xml.XppDriver.createReader(XppDriver.java:44) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:853) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:845)

使用XML：

<Test.Platform id="1"> 
    <TaskImpl id="1"> 
      <model reference="2"/> 
      <name>process</name> 
    </TaskImpl> 
</Test.Platform id="1">

所以任何建议？

在此先感谢。

来源

2011-05-30 olidev

请问您可以发布您正在序列化的课程吗？ – artplastika 2011-05-30 11:56:19

嗨，正如我所提到的，我没有类结构，它是在一个Java库中。 – olidev 2011-05-30 12:00:54

看看是否有帮助http://stackoverflow.com/questions/1524775/error-reading-settings-xml它出现有一段时期（。）造成破坏 – Sean 2011-05-30 12:00:54

所以这里忽略的是你如何阅读文件。您正在使用

XStream xstream = new XStream(); 
xstream.fromXML("model.xml");

哪个是周期（。）来自错误的地方。来自XML的方法期望实际的XML输入而不是文件名。所以当它解析你的xml（这是“model.xml”而不是实际的xml）时，它会给出错误。 XStream的站点现在关闭，所以我无法链接到API

使用FileReader/BufferedReader来获取XML的内容。像这样的东西应该工作

XStream instream = new XStream(); 

BufferedReader br = new BufferedReader(new FileReader("model.xml")); 
StringBuffer buff = new StringBuffer(); 
String line; 
while((line = br.readLine()) != null){ 
    buff.append(line); 
} 
Platform p = (Platform)instream.fromXML(buff.toString());

P.S.我能够复制这个问题，并用上面的方法修复它

来源

2011-05-30 12:52:24 Sean

嗨肖恩，谢谢。我只是试过了你从BufferedReader中读取的方法，但它仍然是一样的错误。 :( – olidev 2011-05-30 20:08:17

你能发布你正在阅读的完整方法吗？ – Sean 2011-05-30 20:47:50

我发现，Xstream只适用于：InputStream inputStream = new FileInputStream（dseirFile）; – olidev 2011-06-07 13:26:58

用于序列化和反序列化的xstream错误

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