Java Web Start 在 Windows 启动时部署

Question

我有一个即将开始使用 Web Start 部署的 Java 应用程序。但是一个新的需求让我重新考虑了这一点，因为我现在需要添加一个功能，允许最终用户选择他们是否希望在启动时运行这个程序（Windows，而不是跨平台)。但我仍然希望避免将其作为服务运行。有什么方法可以使用 Web Start 来完成，还是我应该探索其他选项来部署它？提前致谢。

Answer 1

将 this 放入 jnlp 文件中实际上可以：

<shortcut online="true">
    <desktop/>
    <menu submenu="Startup"/>
</shortcut>

但这仍然只适用于英文 Windows 版本。我认为德语是“Autostart”，西班牙语是“Iniciar”。所以它与通过IntegrationService的方式基本相同。

Answer 2

我还没有尝试过，但我想知道您是否可以将新的 JNLP IntegrationService 与 javaws 命令行程序结合使用。这个想法是以编程方式在 Windows 启动组中创建一个快捷方式（尽管该位置取决于特定的 Windows 版本）。

Answer 3

要解决 Startup 文件夹的语言问题，只需使用注册表即可。这是一些应该可以工作的代码。这会调用 reg.exe 进行注册表更改。

public class StartupCreator {

    public static void setupStartupOnWindows(String jnlpUrl, String applicationName) throws Exception {
        String foundJavaWsPath = findJavaWsOnWindows();
        String cmd = foundJavaWsPath + " -Xnosplash \"" + jnlpUrl + "\"";
        setRegKey("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", applicationName, cmd);
    }

    public static String findJavaWsOnWindows() {
    // The paths where it will look for java
    String[] paths = {
        // first use the JRE that was used to launch this app, it will probably not reach the below paths
        System.getProperty("java.home") + File.separator + "bin" + File.separator + "javaws.exe",
        // it must check for the 64 bit path first because inside a 32-bit process system32 is actually syswow64
        // 64 bit machine with 32 bit JRE
        System.getenv("SYSTEMROOT") + File.separator + "syswow64" + File.separator + "javaws.exe",
        // 32 bit machine with 32 bit JRE or 64 bit machine with 64 bit JRE
        System.getenv("SYSTEMROOT") + File.separator + "system32" + File.separator + "javaws.exe",};
        return findJavaWsInPaths(paths);
    }

    public static String findJavaWsInPaths(String[] paths) throws RuntimeException {
        String foundJavaWsPath = null;
        for (String p : paths) {
            File f = new File(p);
            if (f.exists()) {
                foundJavaWsPath = p;
                break;
            }
        }
        if (foundJavaWsPath == null) {
            throw new RuntimeException("Could not find path for javaws executable");
        }
        return foundJavaWsPath;
    }

    public static String setRegKey(String location, String regKey, String regValue) throws Exception {
        String regCommand = "add \"" + location + "\" /v \"" + regKey + "\" /f /d \"" + regValue + "\"";

        return doReg(regCommand);
    }

    public static String doReg(String regCommand) throws Exception {

        final String REG_UTIL = "reg";
        final String regUtilCmd = REG_UTIL + " " + regCommand;
        return runProcess(regUtilCmd);
    }

    public static String runProcess(final String regUtilCmd) throws Exception {
        StringWriter sw = new StringWriter();
        Process process = Runtime.getRuntime().exec(regUtilCmd);

        InputStream is = process.getInputStream();
        int c = 0;
        while ((c = is.read()) != -1) {
            sw.write(c);
        }
        String result = sw.toString();
        try {
            process.waitFor();
        } catch (Throwable ex) {
            System.out.println(ex.getMessage());
        }
        if (process.exitValue() == -1) {
            throw new Exception("REG QUERY command returned with exit code -1");
        }
        return result;
    }
}