Google App Engine后端servlet无响应 [英] Google App Engine backend servlet not responding

问题描述

我构建了一个我试图在后端运行的servlet。但是在启动后端并将邮件发送至 http://mybackend.myapp.appspot.com/update 没有任何内容。

当我访问时： http://myapp.appspot.com / update 该servlet正在工作，但不在后端。

我在做什么错了？

Servlet代码：

  public class UpdateServlet继承HttpServlet 
 {
 @Override 
 protected void doPost （HttpServletRequest req，HttpServletResponse resp）抛出ServletException异常，IOException 
 {
 System.out.println（start long task）; 
} 
} 
  

backends.xml

 <后端> 
< backend name =mybackend> 
< class> B1< / class> 
< options> 
< dynamic> true< / dynamic> 
< public> true< / public> 
< / options> 
< / backend> 
< / backends> 
  

web.xml

 < servlet> 
< servlet-name>更新< / servlet-name> 
< servlet-class> server.UpdateServlet< / servlet-class> 
< / servlet> 
 
< servlet-mapping> 
< servlet-name>更新< / servlet-name> 
< url-pattern> / update< / url-pattern> 
< / servlet-mapping> 
  

解决方案 发送HTTP 302重定向 http://my-life.appspot.com 。所以这是你的代码。

I built a servlet that I'm trying to run in the backend. But after starting the the backend and sending post message to http://mybackend.myapp.appspot.com/update nothing is appening.
when I access: http://myapp.appspot.com/update the servlet is working but not in backend.
What am I doing wrong?

Servlet code:

public class UpdateServlet extends HttpServlet
{   
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException 
    {
        System.out.println("start long task");              
    }
}

backends.xml

<backends>
  <backend name="mybackend">
    <class>B1</class>
    <options>
      <dynamic>true</dynamic>
      <public>true</public>
    </options>
  </backend>
</backends>

web.xml

<servlet>
    <servlet-name>update</servlet-name>
    <servlet-class>server.UpdateServlet</servlet-class> 
</servlet>

<servlet-mapping>
    <servlet-name>update</servlet-name>
    <url-pattern>/update</url-pattern>
</servlet-mapping>

解决方案

The servlet at http://mybackend.myapp.appspot.com/update sends a HTTP 302 redirect http://my-life.appspot.com. So it's your code that's doing it.

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