java使用线程下载多个文件

您确实想使用ExecutorService而不是单个线程，它更干净，性能可能更高，并且使您以后可以更轻松地进行更改（线程计数，线程名称等）：

ExecutorService pool = Executors.newFixedThreadPool(10);for (String name : fileNames) {    pool.submit(new DownloadTask(name, toPath));}pool.shutdown();pool.awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS);// all tasks have now finished (unless an exception is thrown above)

在班上其他地方定义实际的工作马

DownloadTask

private static class DownloadTask implements Runnable {    private String name;    private final String toPath;    public DownloadTask(String name, String toPath) {        this.name = name;        this.toPath = toPath;    }    @Override    public void run() {        // surround with try-catch if downloadFile() throws something        downloadFile(name, toPath);    }}

该

shutdown()

awaitTermination()

InterruptedException