我正在尝试使用其url将java.util.properties中的属性添加到联机文件中。
这是我目前掌握的代码：

public static boolean savePropertiesToURL(Properties properties, String link, String fileName) {
    boolean result = false;
    if (properties != null && link != null && fileName != null) {
        try {
            URL url = new URL(link);
            try {
                URLConnection connection = url.openConnection();
                connection.setDoOutput(true);
                try {
                    OutputStream outStream = connection.getOutputStream();
                    try {
                        properties.store(outStream, fileName);
                    } catch (IOException ex) {
                        System.err.println("Unable to store the properties: " + ex.getMessage());
                    } finally {
                        try {
                            outStream.flush();
                            result = true;
                        } catch (IOException ex) {
                            Logger.getLogger(PropertiesUtil.class.getName()).log(Level.SEVERE, null, ex);
                            System.err.println("Unable to flush outputstream: " + ex.getMessage());
                        }
                        outStream.close();
                    }
                } catch (IOException ex) {
                    System.err.println("Unable to get outputstream: " + ex.getMessage());
                }
            } catch (IOException ex) {
                System.err.println("Unable to open URL connexion: " + ex.getMessage());
            }
        } catch (MalformedURLException ex) {
            System.err.println("The URL hasn't been created: " + ex.getMessage());
        }
    }
    return result;
}

它经历了这一切，并返回真实。即使文件没有写。每次捕获都有记录者，但从未触发任何捕获。