//一个jar包可以包含多个entry，这样就能实现下面功能1.I/O 读文件流步骤 File file=new File(filePath);InputStreamReader read = new InputStreamReader(new FileInputStream(file));BufferedReader bufferedReader = new BufferedReader(read);String lineTxt = bufferedReader.readLine() package PlayJar;/*** 读取txt文件里的路径文件* @author gjf*/import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;public class ReadFile{public static List<String> readTxtFile(){String filePath = "E:/Jar/prpall.txt";List<String> list = new ArrayList<String>();try {File file=new File(filePath);if(file.isFile() && file.exists()){ //判断文件是否存在 InputStreamReader read = new InputStreamReader(new FileInputStream(file));BufferedReader bufferedReader = new BufferedReader(read);String lineTxt = null;while((lineTxt = bufferedReader.readLine()) != null){list.add("E:/运维域/基线域04-B/prpall/modules/webapps/"+lineTxt);}System.out.println("list"+list);read.close();}else{System.out.println("找不到指定的文件");}}catch(Exception e) {System.out.println("读取文件内容出错");e.printStackTrace();}return list;}}package PlayJar;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.jar.JarEntry;import java.util.jar.JarOutputStream;/*** 把单个txt里的路径文件打包* @author pc*/public class PJar {public static void main(String[] args) throws IOException {FileInputStream fis = null;JarOutputStream jos = null;jos = new JarOutputStream(new FileOutputStream("E:/Jar/ppp.jar"));for (String s : ReadFile.readTxtFile()) {File file = new File(s);// 文件地址 fis = new FileInputStream(file);// 创建压缩文件中的条目，subString是为了截距掉前面的路径 JarEntry enttry = new JarEntry(file.getPath().substring(38));System.out.println("创建压缩文件中的条目 :" + enttry);// 将创建好的条目加入到压缩文件中 jos.putNextEntry(enttry);// 写入当前条目所对应的具体内容 byte[] buff = new byte[1024];int len = 0;while ((len = fis.read(buff)) != -1) {jos.write(buff, 0, len);}}fis.close();jos.close();}}
