如何向jar包里写文件
String newFile = StringConstant.LINUX_JOB_DIRSUFFIX + emptyFileStr; Path newpath = Paths.get(newFile);//新的空的文件 就是打算写入到jar文件里的 File emptyFile = newpath.toFile(); emptyFile.createNewFile(); // 创建辅助空文件 String tmpJarFileName = ""; String globalVersion = httpForeignIntefaceConfigInitializer.getProperties().getProperty("Flink.JarName"); String originalJarPath = StringConstant.LINUX_JOB_FILESUFFIX + globalVersion ; Path pathToAddFile = emptyFile.toPath(); Map<String, String> env = new HashMap<>(); env.put("create", "true"); for (int i = 0; i < coreSize; i++) {//从0开始 String uuid = UUID.randomUUID().toString().replaceAll("-", ""); tmpJarFileName = originalJarPath.substring(0, originalJarPath.length() - 4) + "-upgrade" + i + ".jar"; FileUtils.copyFile(new File(originalJarPath), new File(tmpJarFileName));// 创建中间文件 提交任务时 使用此文件 Path path = Paths.get(tmpJarFileName); URI uri = URI.create("jar:" + path.toUri()); // Writer writer = null; try (FileSystem fs = FileSystems.newFileSystem(uri, env)) {// 向辅助空文件中写入uuid 并将空文件写入中间文件 保证同一批次间使用的jar文件不同 Path nf = fs.getPath("emptyFile");//jar中要写入的文件名字 Files.copy(pathToAddFile, nf, StandardCopyOption.REPLACE_EXISTING); Writer writer = Files.newBufferedWriter(nf, StandardCharsets.UTF_8, StandardOpenOption.CREATE); writer.write(uuid); writer.close(); // fs.close(); } }
posted on 2018-09-04 23:33 MaXianZhe 阅读(1075) 评论(0) 编辑 收藏 举报