在Java程式設計中,如何使用java從XML文件中提取內容?
專案的目錄結構如下 -
Tika的工具包可從以下網址下載:http://tika.apache.org/download.html ,只下載:tika-app-1.16.jar 和 tika-server-1.16.jar 。
以下是使用java從XML文件中提取內容的程式 -
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.html.HtmlParser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.SAXException;
public class ExtractContentFromXMLDoc {
public static void main(String[] args) throws IOException, SAXException, TikaException {
// detecting the file type
BodyContentHandler handler = new BodyContentHandler();
Metadata metadata = new Metadata();
FileInputStream inputstream = new FileInputStream(new File("xmlExample.xml"));
ParseContext pcontext = new ParseContext();
// Html parser
HtmlParser htmlparser = new HtmlParser();
htmlparser.parse(inputstream, handler, metadata, pcontext);
System.out.println("Contents of the document:" + handler.toString());
System.out.println("Metadata of the document:");
String[] metadataNames = metadata.names();
for (String name : metadataNames) {
System.out.println(name + ": " + metadata.get(name));
}
}
}
原檔案:xmlExample.xml 的內容如下 -
執行上面範例程式碼,得到以下結果 -
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/F:/worksp/javaexamples/libs/tika_libs/tika-app-1.16.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/F:/worksp/javaexamples/libs/tika_libs/tika-server-1.16.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
Contents of the document:
Maxsu
Tw511.com
0988-99998800
Metadata of the document:
Content-Encoding: windows-1252
Content-Type: text/html; charset=windows-1252