强制Jetty进行301重定向

Question

我有一个非常大的Jetty应用程序。 我需要将所有302重定向替换为301。

在执行response.sendRedirect（'someURL'）时，我可以强制Jetty始终执行301重定向吗？

Answer 1

码头6和8的黑客攻击：

if (server.getClass().getPackage().getImplementationVersion().startsWith("8")) {
  try {
    // Force 302 redirect status code into 301 'permanent redirect'
    Field statusField = HttpGenerator.class.getDeclaredField("__status");
    statusField.setAccessible(true);
    Object[] statusMap = (Object[]) statusField.get(HttpStatus.class);
    statusMap[HttpStatus.MOVED_TEMPORARILY_302] = statusMap[HttpStatus.MOVED_PERMANENTLY_301];
  } catch (Exception e) {
    e.printStackTrace();
    throw new RuntimeException(e);
  }
} else if (server.getClass().getPackage().getImplementationVersion().startsWith("6")) {
  try {
    // Force 302 redirect status code into 301 'permanent redirect'
    Field statusField = HttpStatus.class
        .getDeclaredField("__responseLine");
    statusField.setAccessible(true);
    Buffer[] responseLine = (Buffer[]) statusField
        .get(HttpStatus.class);
    byte[] bytes = responseLine[302].toString().replace("302", "301")
        .getBytes();
    responseLine[302] = new ByteArrayBuffer(bytes, 0, bytes.length,
        Buffer.IMMUTABLE);
  } catch (Exception e) {
    e.printStackTrace();
    throw new RuntimeException(e);
  }
} else {
  throw new IllegalStateException("Jetty version "
      + server.getClass().getPackage().getImplementationVersion()
      + " not yet supported?");
}