目的是让您覆盖
Analyzer，而不是
StandardAnalyzer。这种想法是，您永远不应将分析器实现子类化（此处有一些讨论）。但Analyzer的实现非常简单，将一个CharFilter添加到Analyzer中，实现与StandardAnalyzer相同的标记器/过滤器链，如下所示：
public final class MyAnalyzer { @Override protected TokenStreamComponents createComponents(String fieldName, Reader reader) { final StandardTokenizer src = new StandardTokenizer(matchVersion, reader); TokenStream tok = new StandardFilter(matchVersion, src); tok = new LowerCaseFilter(matchVersion, tok); tok = new StopFilter(matchVersion, tok, StopAnalyzer.ENGLISH_STOP_WORDS_SET); return new TokenStreamComponents(src, tok); } @Override protected Reader initReader(String fieldName, Reader reader) { //return your CharFilter-wrapped reader here }}
