TIKA提取.class文件
下面给出的是该程序提取.class文件的内容和元数据。
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.asm.ClassParser; import org.apache.tika.sax.BodyContentHandler; import org.xml.sax.SAXException; public class JavaClassParse { public static void main(final String[] args) throws IOException,SAXException, TikaException { //detecting the file type BodyContentHandler handler = new BodyContentHandler(); Metadata metadata = new Metadata(); FileInputStream inputstream = new FileInputStream(new File("Example.class")); ParseContext pcontext = new ParseContext(); //Html parser ClassParser ClassParser = new ClassParser(); ClassParser.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)); } } }
保存上述代码作为JavaClassParse.java,并通过使用下面的命令从命令提示编译:
javac JavaClassParse.java java JavaClassParse
下面给出的是Example.java编译执行后,将得到example.class文件的快照:
此.class文件有以下属性:
执行上述程序后,将得到下面的输出。
输出:
Contents of the document: package yiibai.tika.examples; public synchronized class Example { public void Example(); public static void main(String[]); } Metadata of the document: title: Example resourceName: Example.class dc:title: Example