Question

如何从网址中提取文字？在我的代码中，它正在提取该URL的源代码......

DefaultHttpClient client = null;
client = new DefaultHttpClient();
client.getCredentialsProvider().setCredentials(
                new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT, AuthScope.ANY_REALM),
                new UsernamePasswordCredentials("test", "test"));
client.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true);                
HttpGet request = new HttpGet("http://somehost.com");        
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();

Tika t = new Tika();
Metadata md = new Metadata();
Reader r = t.parse(content, md);
System.out.println(md);
System.out.println("Yes1: " +md.get("keywords"));
System.out.println("Yes2: " +md.get("title"));
System.out.println("Yes3: " +md.get("authors"));

//This gives the source code of that url not the actual content...
String ss= t.parseToString(content);
System.out.println("Yes4: " +ss);

有什么建议吗？

Answer 1

BoilerpipeContentHandler允许您在没有标记的情况下提取正文内容。附带的命令行实用程序显示了如何在程序中使用它并测试各种格式。

Answer 2

正如我读过的那样......你可以使用这段代码来完成tika

 byte[] raw = content.getContent();
 ContentHandler handler = new BodyContentHandler();
 Metadata metadata = new Metadata();
 Parser parser = new AutoDetectParser();
 parser.parse(new ByteArrayInputStream(raw), handler, metadata, new ParseContext());
 LOG.info("content: " + handler.toString());

即使我测试了它，但我发现handler.toString（）是空的！

使用TIKA提取网址的内容（文本）

2 个答案: