置顶事件推送群发结果，获取后转换为xml文件时报错，精选热门

2019-10-162375浏览

事件推送群发结果，获取HttpServletRequest转换为xml文件时，将HttpServletRequest形式为xml文件的字符串时（String requestXml = MessageUtil.parse2Xml(request);），获取的字符串为：

<xml><ToUserName><![CDATA[gh_4cb8fca54b13]]></ToUserName><FromUserName><![CDATA[oV_Tssw9sHOSXx2leMYE1ecHzSKk]]></FromUserName><CreateTime>1571039189</CreateTime><MsgType><![CDATA[event]]></MsgType><Event><![CDATA[MASSSENDJOBFINISH]]></Event><MsgID>3147483669</MsgID><Status><![CDATA[send success]]></Status><TotalCount>2</TotalCount><FilterCount>2</FilterCount><SentCount>2</SentCount><ErrorCount>0</ErrorCount>

<CopyrightCheckResult>

<Count>0</Count>

<ResultList>

</ResultList>

<CheckState>1</CheckState>

</CopyrightCheckResult>

<ArticleUrlResult>

<Count>1</Count>

<ResultList>

<item>

<ArticleIdx>1</ArticleIdx>

<ArticleUrl><![CDATA[http://mp.weixin.qq.com/s/RrUoc2JYYfgVpVhF0H1qXQ]]></ArticleUrl>

</item>

</ResultList>

</ArticleUrlResult>

</xml>

发现<ArticleUrl> -> <ResultList> -> <item>的item项为小写开头的i，所以在之后将形式为xml的字符串解析为相应对象时出错，

ReqBaseMessage reqBaseMessage = parseWechatMessage(requestXml);

reqBaseMessage = convertResult(requestXml, ReqEventMessage.class, ReqBaseMessage.class);

@SuppressWarnings("unchecked")

private <T, V> T convertResult(String result, Class<T> clazz, Class<V> parentClazz) {

XStream xStream = new XStream();

xStream.addDefaultImplementation(clazz, parentClazz);

xStream.autodetectAnnotations(true);

xStream.processAnnotations(clazz);

Object transaction = xStream.fromXML(result);

return (T)transaction;

}

对应的类为：

错误日志如下：

com.thoughtworks.xstream.converters.ConversionException: item : item

---- Debugging information ----

message : item

cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException

cause-message : item

class : java.util.ArrayList

required-type : java.util.ArrayList

converter-type : com.thoughtworks.xstream.converters.collections.CollectionConverter

path : /xml/ArticleUrlResult/ResultList/item

line number : 1

class[1] : com.monster.hswx.utils.pojo.req.ArticleUrlResult

converter-type[1] : com.thoughtworks.xstream.converters.reflection.ReflectionConverter

class[2] : com.monster.hswx.utils.pojo.req.ReqEventMessage

version : null

-------------------------------

at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:79)

at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)

at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)

at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshallField(AbstractReflectionConverter.java:351)

at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:302)

at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:230)

at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)