我需要在我的应用程序中创建两个 HTML 文档之间的差异。我发现一个名为 DaisyDiff 的库可以做到这一点。它有一个如下所示的 API：
/**
* Diffs two html files, outputting the result to the specified consumer.
*/
public static void diffHTML(InputSource oldSource, InputSource newSource,
ContentHandler consumer, String prefix, Locale locale)
throws SAXException, IOException
我对 SAX 一无所知，而且我不知道该传递什么作为第三个参数。翻阅之后https://code.google.com/p/daisydiff/source/browse/trunk/daisydiff/src/java/org/outerj/daisy/diff/Main.java https://code.google.com/p/daisydiff/source/browse/trunk/daisydiff/src/java/org/outerj/daisy/diff/Main.java我写了这个方法：
@Override
protected String doInBackground(String... params)
{
try {
String oldFileName = params[0],
newFileName = params[1];
ByteArrayOutputStream os = new ByteArrayOutputStream();
FileInputStream oldis = null, newis = null;
oldis = openFileInput(oldFileName);
newis = openFileInput(newFileName);
SAXTransformerFactory tf = (SAXTransformerFactory) TransformerFactory
.newInstance();
TransformerHandler result = tf.newTransformerHandler();
result.setResult(new StreamResult(os));
DaisyDiff.diffHTML(new InputSource(oldis), new InputSource(newis), result, "", Locale.getDefault());
Log.d("diff", "output length = " + os.size());
return os.toString("Utf-8");
}catch (Exception e){
return e.toString();
}
}
我不知道这是否有意义。它不起作用，没有任何内容写入输出。请在这件事上给予我帮助。提前致谢。
