java - Google App Engine- java.lang.IllegalStateException : Committed Error

Question

我目前正在开发一个需要我部署到 Google App Engine 服务器上的应用程序。我的应用程序在本地端口 7777 上运行得非常好。但是，当我部署到 GAE 上时，它开始给我这个错误 -

java.lang.IllegalStateException: Committed 

它只是在 GAE 日志中返回一个“null”。

没有错误。它只声明一条警告消息:

"A serious problem was encountered with the process that handled this request, causing it to exit. This is likely to cause a new process to be used for the next request to your application. If you see this message frequently, you may be throwing exceptions during the initialization of your application. (Error code 104)"

希望有人能帮我解决这个问题。提前致谢!

Answer 1

java.lang.IllegalStateException: Committed 错误通常发生在 HttpServletResponse 被提交两次时。例如:

protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    if (trueCondition)
        resp.sendRedirect("/");
    if (otherTrueCondition)
        resp.sendRedirect("/other");
}