我有byte[]
表示UTF-8编码的YAML字符串,我想反序列化它。这是我正在使用的通用方法:
public static <T> T getInstanceFromBinary(final Class<T> clazz, final byte[] binary, final String encoding)
throws IOException {
final StringReader stringReader = new StringReader(new String(binary, encoding));
final String yamlString = stringReader.toString();
final boolean hasTab = yamlString.contains("\t");
final YamlReader reader = new YamlReader(stringReader);
final T clazzInstance = reader.read(clazz);
reader.close();
return clazzInstance;
}
我得到了这个例外:
Caused by: com.esotericsoftware.yamlbeans.tokenizer.Tokenizer$TokenizerException: Line 185, column 35: Tabs cannot be used for indentation.
at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.fetchMoreTokens(Tokenizer.java:313)
at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.peekNextToken(Tokenizer.java:120)
at com.esotericsoftware.yamlbeans.tokenizer.Tokenizer.peekNextTokenType(Tokenizer.java:125)
at com.esotericsoftware.yamlbeans.parser.Parser$20.produce(Parser.java:320)
at com.esotericsoftware.yamlbeans.parser.Parser.getNextEvent(Parser.java:80)
at com.esotericsoftware.yamlbeans.parser.Parser.peekNextEvent(Parser.java:91)
at com.esotericsoftware.yamlbeans.YamlReader.readValueInternal(YamlReader.java:270)
at com.esotericsoftware.yamlbeans.YamlReader.readValue(YamlReader.java:152)
at com.esotericsoftware.yamlbeans.YamlReader.readValueInternal(YamlReader.java:295)
... 38 more
问题是解码后的字符串似乎不包含制表符。这是调试的屏幕截图,确认了这一点:
我还检查过YAMLBeans源代码,found where抛出了这个异常,虽然这并没有说明为什么会发生这种情况或如何解决这个问题。
提前感谢任何见解。
答案 0 :(得分:3)
你在StringReader上调用toString()
,它返回Object.toString()提供的神秘而无用的实现。 java.io.StringReader@329dbdbf
,即它不会告诉您是否有标签。
相反,您需要在将其传递给StringReader之前检查您使用的原始String
,并可能应用.replaceAll("\t", "\\t")