📄 testcometservlet.java

📁 RESIN 3.2 最新源码

💻 JAVA

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package example;import java.io.*;import java.util.*;import java.util.concurrent.*;import javax.servlet.*;import javax.servlet.http.*;import javax.webbeans.In;import com.caucho.servlet.comet.*;public class TestCometServlet extends GenericCometServlet{  @In private TimerService _timerService;    private ArrayList<CometState> _itemList    = new ArrayList<CometState>();    @Override  public boolean service(ServletRequest request,                         ServletResponse response,                         CometController controller)    throws IOException, ServletException  {    HttpServletRequest req = (HttpServletRequest) request;    HttpServletResponse res = (HttpServletResponse) response;        PrintWriter out = res.getWriter();    res.setHeader("Cache-Control", "no-cache, must-revalidate");    res.setHeader("Expires", "Mon, 27 Jul 1997 05:00:00 GMT");    res.setContentType("text/html");    out.println("<html><body>");    // Padding needed because Safari needs at least 1k data before    // it will start progressive rendering.    for (int i = 0; i < 100; i++) {      out.println("<span></span>");    }    out.println("<script type='text/javascript'>");    out.println("var comet_update = window.parent.comet_update;");    out.println("</script>");    CometState state = new CometState(controller);        // Add the comet state to the controller    _timerService.addCometState(state);    return true;  }    @Override  public boolean resume(ServletRequest request,                        ServletResponse response,                        CometController controller)    throws IOException, ServletException  {    HttpServletRequest req = (HttpServletRequest) request;    HttpServletResponse res = (HttpServletResponse) response;        PrintWriter out = res.getWriter();    Object count = controller.getAttribute("comet.count");    out.println("<script type='text/javascript'>");    out.println("comet_update(" + count + ");");    out.println("</script>");    return true;  }}

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