TIKA提取.class文件

下面給出的是該程序提取.class文件的內容和元數據。

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)); } } }

保存上述代碼作爲JavaClassParse.java，並通過使用下面的命令從命令提示編譯：

javac JavaClassParse.java
java JavaClassParse

下面給出的是Example.java編譯執行後，將得到example.class文件的快照：

此.class文件有以下屬性：

執行上述程序後，將得到下面的輸出。

輸出:

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