微信开发，对象转换为xml时候引用XStream这个类报错处理方案

报错的信息为：The type org.xmlpull.v1.XmlPullParser cannot
be resolved.

/**

* 扩展XStream 支持CDATA

*/

private static XStream xstream = new XStream(new XppDriver(){

public HierarchicalStreamWriter createWriter(Writer out) {

return new PrettyPrintWriter(out){

//对所有XML节点的转换添加CDATA标志

boolean cdata =true;

@SuppressWarnings("unchecked")

public void starNode(String name,Class clazz) {

super.startNode(name,clazz);

}

protected void writeText(QuickWriter writer,String text) {

if(cdata){

writer.write("<![CDATA[");

writer.write(text);

writer.write("]]>");

}else {

writer.write(text);

}

}

};

}

});

/**

* 文本消息对象转换为xml

* @param textMessage 文本消息对象

* @return

*/

public static String messageToXml(TextMessage textMessage) {

xstream.alias("xml", textMessage.getClass());

return xstream.toXML(textMessage);

}

/**

* 图片消息对象转换为xml

* @param imageMessage 图片消息对象

* @return

*/

public static String messageToXml(ImageMessage imageMessage) {

xstream.alias("xml", imageMessage.getClass());

return xstream.toXML(imageMessage);

}

/**

* 语音消息对象转换为xml

* @param voiceMessage 语音消息对象

* @return

*/

public static String messageToXml(VoiceMessage voiceMessage) {

xstream.alias("xml", voiceMessage.getClass());

return xstream.toXML(voiceMessage);

}

/**

* 视频消息对象转换为xml

* @param videoMessage 视频消息对象

* @return

*/

public static String messageToXml(VideoMessage videoMessage) {

xstream.alias("xml", videoMessage.getClass());

return xstream.toXML(videoMessage);

}

/**

* 音乐消息对象转换为xml

* @param musicMessage 音乐消息对象

* @return

*/

public static String messageToXml(MusicMessage musicMessage) {

xstream.alias("xml", musicMessage.getClass());

return xstream.toXML(musicMessage);

}

/**

* 图文消息对象转换为xml

* @param newsMessage 图文消息对象

* @return

*/

public static String messageToXml(NewsMessage newsMessage) {

xstream.alias("xml", newsMessage.getClass());

xstream.alias("item", new Article().getClass());

return xstream.toXML(newsMessage);

}

}

处理的方法就是

在当前类的第一行（package位置）会提示：Multiple markers at this line

- The type org.xmlpull.v1.XmlPullParser cannot be resolved. It is indirectly referenced from required .class files

- The type org.xmlpull.v1.XmlPullParser cannot be resolved. It is indirectly referenced from required .class files

- The type org.xmlpull.v1.XmlPullParserException cannot be resolved. It is indirectly referenced from

required .class files

这样的信息，这是因为XStream只是一个jar文件，但是它里面会依赖一个jar包，依赖的jar包是：xmlpull_1_0_5.jar、只要把这个jar包引入之后，问题即可解决！