如何0x{2}在 Java 中编写 unicode 字符？
我尝试"\u0002"但似乎不起作用。
我需要找到这个字符的原因是我需要在 XML 文件中替换它，然后才能解析它。
我在解析时遇到的错误提到：An invalid XML character (Unicode: 0x{2}) was found in the value of attribute "{1}" and element is "4".并且替换\u0002不能解决错误。
这就是我解析的方式：
try {
// Fixing any invalid characters in the XML file
fixXMLFile(xmlFile);
// Get a factory
SAXParserFactory spf = SAXParserFactory.newInstance();
// Get a new instance of parser
SAXParser sp = spf.newSAXParser();
// Parse the file and also register this class for call backs
sp.parse(xmlFile, this);
} catch(Exception e) {
System.out.println(e.getLocalizedMessage());
}
和修复方法：
private void fixXMLFile(File xmlFile) throws IOException {
File tempFile = File.createTempFile("dont_delete", ".tmp");
FileWriter fw = new FileWriter(tempFile);
Reader fr = new FileReader(xmlFile);
BufferedReader br = new BufferedReader(fr);
int sdds = 0;
while(br.ready()) {
String tmp = br.readLine();
if (tmp.contains("\u0002")) System.out.println(++sdds);
fw.write(tmp.replaceAll("\u0002", "") + "\n");
}
fw.close();
br.close();
fr.close();
// Finally replace the original file.
tempFile.renameTo(xmlFile);
}