从另一个jsp调用一个jsp

Question

I have 2 machines running tomcat which are in lan.

Can I make a call from jsp in one machine to another jsp page in another machine

I have tried it as follows:

<%
  RequestDispatcher rd=application.getRequestDispatcher("http://10.44.111.149:8080/stud/sample.jsp");
  RequestDispatcher rd=application.getRequestDispatcher("/index.jsp");
  rd.include(request,response);
%>

But it gave me the following error:

java.lang.IllegalArgumentException: Path http://10.44.111.149:8080/stud/sample.jsp does not start with a "/" character

Is there any way to do this.

Answer 1

您可以将客户端重定向到Internet上的任何URL（尽管不能使用getRequestDispatcher进行重定向），但是处理该重定向的JSP将没有第一台机器生成的任何servlet / request / session上下文（除非您正在集群）具有跨服务器会话的Web服务器）。

Answer 2

RequestDispatcher is not intended for such an use. Instead you can use response.sendRedirect(...) from your server to the remote server as below

response.sendRedirect(remoteServerUrl);