Article:		Very Dynamic Web Interfaces
Subject:		XMLHTTP and java
Date:		2005-10-07 13:17:44
From:		vivekst
Hi, Im working on Java Servlets. How can I use XMLHttp with Servlets

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• XMLHTTP and java
  2006-05-04 08:39:45 SPENGLER [Reply]
  
  just call your servlet directly via the JavaScript URL, like:

  
  URL = "/servlets/com.myProject.myServlet?field1=" + document.getElementById('field1').value;

  
  then in your servlet, simple setup would be like:

  
  
  public void doGet(HttpServletRequest req, HttpServletResponse res) {
    try{
      PrintWriter out = res.getWriter();
      String field1 = req.getParameter("field1");
      String result = field1;
  // ***** do something with field1
      out.print( result );
      String
    }catch(Exception e){
      logger.debug( e.getMessage() );
      logger.debug( e.getStackTrace().toString() );
    }finally{;}
  }
  

  
  then, back in your JavaScript (code/file):

  
  
  function updatePage() {
    if (xmlHttp.readyState == 4) {
      var response = xmlHttp.responseText;
      document.getElementById("encryptedPswrd").value = response;
    }
  }
  
  
  

• XMLHTTP and java
  2006-05-04 08:36:57 SPENGLER [Reply]
  
  just testing some code in a reply here:

  
  <block>
  public void doGet(HttpServletRequest req, HttpServletResponse res) {
   try {
    PrintWriter out = res.getWriter();
  </block>

  
  ignore this, but look for larger response in few minutes.
  
  

• XMLHTTP and java
  2006-05-04 08:36:10 SPENGLER [Reply]
  
  just testing some code in a reply here:

  
  
  public void doGet(HttpServletRequest req, HttpServletResponse res) {
  try {
  PrintWriter out = res.getWriter();
  

  
  ignore this, but look for larger response in few minutes.