I am going to write a proxy in GAE. I wrote a very simple test servlet
to read http header.
public class RichardProxyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
StringBuilder builder = new StringBuilder();
Enumeration e = req.getHeaderNames();
while (e.hasMoreElements()) {
String headerName = (String) e.nextElement();
builder.append(headerName ).append(":
").append(req.getHeader
(headerName)).append("\n");
}
resp.setContentType("text/plain");
resp.getWriter().println("Hello, world");
resp.getWriter().println(req.getRequestURI());
resp.getWriter().println(builder.toString());
}
}
and dispatch route '/' to this Servlet
<servlet>
<servlet-name>RichardProxy</servlet-name>
<servlet-class>com.huangzhimin.proxy.RichardProxyServlet</servlet-
class>
</servlet>
<servlet-mapping>
<servlet-name>RichardProxy</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
It works very in localhost, but after deploying to GAE and set proxy
to appid.appspot.com:80, any url page will be redirect to google home
page. Does anyone know why? Is it possible to write a proxy using
servlet in GAE?
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