1
我试图在openNLP 1.8版中构建分类程序，但代码如下，我不断收到NullPointerException。我究竟做错了什么？OpenNLP分类程序版本1.8
public class test
{
public static void main(String[] args) throws IOException
{
InputStream is = new FileInputStream("D:/training.txt");
DoccatModel m = new DoccatModel(is);
Tokenizer tokenizer = WhitespaceTokenizer.INSTANCE;
String tweet = "testing sentence";
String[] tokens = tokenizer.tokenize(tweet);
DocumentCategorizerME myCategorizer = new DocumentCategorizerME(m);
double[] outcomes = myCategorizer.categorize(tokens);
String category = myCategorizer.getBestCategory(outcomes);
}
}