2
Geven XML文件默认值
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ExternalRequestContext [
<!ELEMENT ExternalRequestContext EMPTY>
<!ATTLIST ExternalRequestContext
requestType CDATA #REQUIRED
deepEnrichment (true | false) "false"
channelMandatory (true | false) "true">
]
>
<ExternalRequestContext requestType="News" deepEnrichment="false" />
及XStream代码
@XStreamAlias("ExternalRequestContext")
class ERC {
private String requestType;
private boolean deepEnrichment;
private boolean channelMandatory;
}
...
XStream x = new XStream();
x.processAnnotations(ERC.class);
ERC erc = (ERC)x.fromXML(new FileReader("C:/Projects/Forwarder/Test.xml"));
x.toXML(erc, System.out);
我的浏览器呈现为以下几点:
<ExternalRequestContext requestType="News" deepEnrichment="false" channelMandatory="true" />
注意channelMandatory =“真“(浏览器处理了DTD指令)
而XSTREAM产生
<ExternalRequestContext>
<deepEnrichment>false</deepEnrichment>
<channelMandatory>false</channelMandatory>
</ExternalRequestContext>
这里channelMandatory = “假”(西河忽略了“channelMandatory(真| FALSE)“真”” DTD指令)
我怎么错过?如何‘告诉’西河处理DTD说明? ,如何使DTD验证在西河?
好!使用包装类而不是基元类型可以指示是否在XML文件中给出了值。 然而,显式初始化不起作用:无论其初始值如何,我都会得到channelMandatory为false。 关于验证:我可以让xStream抛出一个异常,如果我用无效的(但格式良好的)XML提供它吗? – Lopotun 2010-01-17 12:50:10