title: Redirect saving POST parameters using HTTP
body: <p>I have 2 web-pages.</p>
  
  <p>So, 1st page takes some POST parameters, and then process it. I want to redirect this query(with all POST params) to my own 2nd page, if  parameter "appId" = "myApp"; </p>
  
  <p>In start of 1st page I make next: </p>
  
  <pre><code>    if (getParameter("id") == "myApp") 
      {
          request.setHttpHeader("")  - ??? WHAT MUST BE HERE? WHICH HEADERS?
      }
  </code></pre>
  
  <p>P.S. I need only HTTP solution, using native (java) methods (like forward and redirect) don't help me. </p>
  
  <p>Thanks.</p>