问题描述
我正在使用Apache CXF在服务器端实现一些WebServices.我必须实现一个WebService，该服务返回一个带有一些由制表符分隔的值的字符串(保持器). Apache CXF将字符选项卡编码为选项卡，但是我们的客户端(无法更改...)不接受它，而仅读取编码为	的选项卡. .
I'm using Apache CXF to implement some WebServices at server side. I have to implement a WebService that returns a string (Holder) with some values separated by tab character. Apache CXF encodes character tab as a tab, but our client (that can not be change...) doesn't accept it and only read tabs encoded as 	 .
因此，我试图简单地对字符串进行replaceAll，以将\ t更改为	. ，但Marshaller上的escapeHandler将其更改为	.
So I tried to simply make a replaceAll on the string to change \t for 	 , but an escapeHandler on Marshaller changes it to 	 .
然后，我尝试创建一个customCharacterEscapeHandler并在marshall的com.sun.xml.bind.marshaller.CharacterEscapeHandler属性中进行设置.
Then I tried to create a customCharacterEscapeHandler and set in the marshall com.sun.xml.bind.marshaller.CharacterEscapeHandler property.
<jaxws:endpoint
id="wsContainer"
implementor="com.xxxxx.xxxxx.xxxxx.webServices.impl.EOSWebServiceImpl"
address="/ws" >
<jaxws:dataBinding>
<bean class="org.apache.cxf.jaxb.JAXBDataBinding">
<property name="marshallerProperties">
<map>
<entry key="jaxb.encoding" value="UTF-8"/>
<entry key="com.sun.xml.bind.marshaller.CharacterEscapeHandler" value-ref="customCharacterEscapeHandler"/>
</map>
</property>
</bean>
</jaxws:dataBinding>
</jaxws:endpoint>
我的customCharacterEscapeHandler是:
And my customCharacterEscapeHandler is:
public class CustomCharacterEscapeHandler implements CharacterEscapeHandler {
private final CharsetEncoder encoder;
public CustomCharacterEscapeHandler(String charsetName) {
this.encoder = Charset.forName(charsetName).newEncoder();
}
public void escape(char[] ch, int start, int length, boolean isAttVal, Writer out) throws IOException {
int limit = start+length;
for (int i = start; i < limit; i++) {
switch (ch[i]) {
case SoapUtils.SOAP_FIELD_SEP: //Cambios sobre el NioEscapeHandler para escapar tabuladores y saltos de linea
out.write("	");
break;
case SoapUtils.SOAP_RSEP:
out.write(" ");
break;
case '&':
out.write("&");
break;
case '<':
out.write("<");
break;
case '>':
out.write(">");
break;
case '\"':
if (isAttVal) {
out.write(""");
} else {
out.write('\"');
}
break;
default:
if( encoder.canEncode(ch[i]) ) {
out.write(ch[i]);
} else {
out.write("&#");
out.write(Integer.toString(ch[i]));
out.write(';');
}
}
}
}
}
这应该可以，但是不能，因为此escapeHandler可以正确替换制表符，但是此后正在运行其他逃逸处理程序，并再次替换'&'.角色，所以我有	再次...
This should work but it doesn't, because this escapeHandler replace correctly the tab character, but some other escapeHandler is running after this and replaces again '&' character, so I have &#9; again ...
我应该怎么做才能在客户端中获得一个编码为	的标签. ??
What should I do to get in the client a tab encoded as 	 ??
PS:我正在使用Apache CXF 2.5.X
PS: I'm using Apache CXF 2.5.X
推荐答案
我也遇到了问题，根据我的观察，似乎XMLStreamWriter不支持JAXB CharacterEscapeHandler，而CXF使用了StaxOutInterceptor.
I also had the issue, based on my observations it seems that that JAXB CharacterEscapeHandler is not supported by the XMLStreamWriter used the CXF StaxOutInterceptor.
我通过将自定义org.codehaus.stax2.io.EscapingWriterFactory注入StaxOutInterceptor来解决此问题.
I workaround the issue by injecting a custom org.codehaus.stax2.io.EscapingWriterFactory to the StaxOutInterceptor.
这是自定义EscapingWriterFactory的实现:
Here's the implementation of the custom EscapingWriterFactory:
public class CustomXmlEscapingWriterFactory implements
org.codehaus.stax2.io.EscapingWriterFactory{
public Writer createEscapingWriterFor(final Writer out, String enc)
throws UnsupportedEncodingException {
return new Writer(){
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
String escapedStr = StringEscapeUtils.
escapeXml(new String(cbuf)).trim();
out.write(escapedStr.toCharArray(), off, escapedStr.toCharArray().length);
}
@Override
public void flush() throws IOException {
out.flush();
}
@Override
public void close() throws IOException {
out.close();
}
};
}
public Writer createEscapingWriterFor(OutputStream out, String enc)
throws UnsupportedEncodingException {
throw new IllegalArgumentException("not supported");
}
}
这里是注入自定义EscapingWriterFactory的CXF拦截器
Here's the CXF interceptor that inject the custom EscapingWriterFactory
public class CustomXmlEscapingWriterInterceptor extends AbstractPhaseInterceptor<Message> {
public CustomXmlEscapingWriterInterceptor() {
super(Phase.PRE_STREAM);
addBefore(StaxOutInterceptor.class.getName());
}
@Override
public void handleMessage(Message message) {
WstxOutputFactory factory = new WstxOutputFactory();
factory.setProperty(XMLOutputFactory2.P_TEXT_ESCAPER, new CustomXmlEscapingWriterFactory());
message.put(XMLOutputFactory.class.getName(), factory);
}
}
这篇关于在Marshaller上设置CharacterEscapeHandler变量无法按预期在CXF中工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！