使用JAXB解组XML，而不用转义字符 [英] Unmarshalling XML with JAXB without unescaping characters
问题描述
想象以下情况：我们从一些外部工具收到一个xml文件。最近在这个xml中，可以在nodenames或其richcontent标签中有一些转义的charameter，如下面的例子（simplefied）：
imagine following situation: we receive a xml file from some external tool. Lately within this xml, there can be some escaped charakters in nodenames or within their richcontent tag, like in the following example (simplyfied):
<map>
<node TEXT="Project">
<node TEXT="ää">
<richcontent TYPE="NOTE"><html>
<head>
</head>
<body>
<p>
I am a Note for Node ää!
</p>
</body>
</html>
</richcontent>
</node>
</node>
</map>
在使用JAXB解组文件之后，这些转义的char charter被取消转义。不幸的是，我需要他们保持他们的方式，意味着逃避。在解组时，是否有任何方法避免对这些角色的转义？
After unmarshalling the file with JAXB those escaped charakters get unescaped. Unfortunatly I need them to stay the way they are, meaning escaped. Is there any way to avoid unescaping those characters while unmarshalling?
在研究我发现很多关于编排xml文件的问题时，出现相反的问题，但是没有帮助我：
While researching I found a lot of questions concerning marshalling xml-files where the opposite problem occurs, but those didnt help me either:
- Question 1
- Question 2
是甚至可以通过JAXB实现这一目标，或者我们甚至要考虑改用不同的xml reader API？
Is it even possible to achieve this aim with JAXB, or do we even have to consider changing to a different xml reader API?
提前谢谢你，
ymene
Thank you in advance, ymene
推荐答案
您只需将&＃替换为& amp;＃因此调用
You need only to replace &# by &# hence call
unmarshaller.unmarshal(new AmpersandingStream(new FileInputStream(...)));
和
import java.io.IOException;
import java.io.InputStream;
/**
* Replaces numerical entities with their notation as text.
*/
public class AmpersandingStream extends InputStream {
private InputStream in;
private boolean justReadAmpersand;
private String lookAhead = "";
public AmpersandingStream(InputStream in) {
this.in = in;
}
@Override
public int read() throws IOException {
if (!lookAhead.isEmpty()) {
int c = lookAhead.codePointAt(0);
lookAhead = lookAhead.substring(Character.charCount(c));
return c;
}
int c = in.read();
if (c == (int)'#' && justReadAmpersand) {
c = (int)'a';
lookAhead = "mp;#";
}
justReadAmpersand = c == (int)'&';
return c;
}
@Override
public int available() throws IOException {
return in.available();
}
@Override
public void close() throws IOException {
in.close();
}
@Override
public synchronized void mark(int readlimit) {
in.mark(readlimit);
}
@Override
public boolean markSupported() {
return in.markSupported();
}
@Override
public int read(byte[] b) throws IOException {
return in.read(b);
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
return in.read(b, off, len);
}
@Override
public synchronized void reset() throws IOException {
in.reset();
}
@Override
public long skip(long n) throws IOException {
return in.skip(n);
}
}
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