?? chatroom.java
字號:
package pchat;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class ChatRoom extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GBK";
//Initialize global variables
public void init() throws ServletException {
}
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
request.setCharacterEncoding("GB2312");
String username = null;
username = request.getParameter("txtName");
username = new String(username.getBytes("ISO-8859-1"), "GB2312");
String message = null;
message = request.getParameter("txtMessage");
System.out.println(username+","+message);
if (message != null) {
message = new String(message.getBytes("ISO-8859-1"), "GB2312");
StringBuffer sb = (StringBuffer)this.getServletContext().
getAttribute("MessageArray");
if (sb == null) {
sb = new StringBuffer();
}
sb.append("<b>" + username + "說:</b>" + message + "<br>");
this.getServletContext().setAttribute("MessageArray", sb);
System.out.println("屬性后:"+sb.toString());
}
out.println("<html>");
out.println("<head><title>ChatRoom</title></head>");
out.println("<body bgcolor=\"#ffffff\">");
out.println("<form action=\"/ChatWeb/chatroom\" method=get>");
out.println("<input type=text name=txtMessage size=80>");
out.println("<input type=hidden name=txtName value=" + username + ">");
out.println("<input type=submit name=btnOK value='發送'>");
out.println("</form>");
out.println("</body>");
out.println("</html>");
out.close();
}
//Process the HTTP Post request
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
}
//Clean up resources
public void destroy() {
}
}
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