JSTL Based Chat : Chat « JSTL « Java Tutorial






<html>
  <head>
    <meta http-equiv="Content-Language" content="en-us" />

    <title>Simple Chat Application</title>
  </head>

  <body>
    <form action="main.jsp">
      <table border="1" cellpadding="0" cellspacing="0"
      style="border-collapse: collapse" bordercolor="#111111"
      width="33%" id="AutoNumber1">
        <tbody>
          <tr>
            <td width="100%" colspan="2" bgcolor="#0000FF">
              <p align="center">
                <b>
                  <font size="4" color="#FFFFFF">Chat Login</font>
                </b>
              </p>
            </td>
          </tr>

          <tr>
            <td width="23%">User ID</td>

            <td width="77%">
              <input type="text" name="uid" size="20" />
            </td>
          </tr>

          <tr>
            <td width="100%" colspan="2">
              <p align="center">
                <input type="submit" value="Submit"
                name="action" />

                <input type="reset" value="Reset" />
              </p>
            </td>
          </tr>
        </tbody>
      </table>

      <P>&#160;</p>
    </form>

    <P>
      <i>Note: You may use any User ID you wish</i>
    </p>
  </body>
</html>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
  <head>
    <title>Chat Joined</title>
  </head>

  <body>
    <c:if test="${pageContext.request.method=='POST'}">
      <c:choose>
        <c:when test="${param.send!=null}">
          <c:set var="chat"
          value="${chat}<b>${param.uid}:</b>${param.text}<br />"
           scope="application" />
        </c:when>

        <c:when test="${param.clear!=null}">
          <c:set var="chat" value="" scope="application" />
        </c:when>
      </c:choose>
    </c:if>

    <table border="0">
      <tbody>
        <tr>
          <td>
            <h3>User: 
            <c:out value="${param.uid}" />
            </h3>

            <hr />
          </td>
        </tr>

        <tr>
          <td>
            <c:out value="${chat}" escapeXml="false" />
          </td>
        </tr>

        <tr>
          <td>
            <hr />

            <form method="post">Message:
            <input type="text" name="text" size="20" />

            <input type="submit" name="send" value="Send" />

            <input type="submit" name="refresh" value="Refresh" />

            <input type="submit" name="clear" value="Clear" />

            <input type="hidden" name="uid"
            value="<c:out value="${param.uid}"/>" />

            <br />
            </form>
          </td>
        </tr>
      </tbody>
    </table>
  </body>
</html>
  Download:  JSTLBasedChat.zip( 1,226 k)








24.36.Chat
24.36.1.JSTL Based Chat