📄 chat_sendmsg_init.java
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package ec;import javax.servlet.*;import javax.servlet.http.*;import java.io.*;import java.util.*;public class chat_sendmsg_init 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(); HttpSession session=request.getSession(true); out.println("<html>"); out.println("<title>发送聊天信息</title>"); out.println("<head>"); out.println("<script language=\"JavaScript\" type=\"text/javascript\">"); out.println("function setCookie()"); out.println("{"); out.println(" document.cookie=form1.toTalk.selectedIndex+\"#\";"); out.println("}"); out.println("</script>"); out.println("</head>"); out.println("<body bgcolor=\"#CCCC99\">"); out.println("<form action=\"ec.chat_sendmsg\" method=\"post\" onsubmit=\"setCookie()\" id=\"form1\">"); out.println(" <table border=\"0\" cellspacing=\"3\" cellpadding=\"0\">"); out.println(" <tr>"); out.println(" <td>"+session.getValue("username")+"</td>"); out.println(" <td align=\"left\" colspan=\"2\"> "); out.println(" <input name=\"message\" style=\"HEIGHT: 21px; WIDTH: 367px\"> "); out.println(" </td> "); out.println(" </tr> "); out.println(" <tr> "); out.println(" <td align=\"center\"> "); out.println(" 对象 "); out.println(" </td> "); out.println(" <td align=\"left\"> "); out.println(" <select name=\"toTalk\"> "); out.println(" <option value=\"all\">全体在聊</option> "); Vector tempuser=(Vector)getServletContext().getAttribute("chatUser"); for (int i=0;i<tempuser.size();i++) { out.println("<option>"); out.println(tempuser.elementAt(tempuser.size()-i-1).toString()); out.println("</option>"); } out.println(" </select> "); out.println(" <input type=\"submit\" value=\"说话呀\" name=\"submit\"> "); out.println(" </td> "); out.println(" <td> "); out.println(" <a href=\"chat_leavechat\" target=\"_top\">离开聊天室</a> "); out.println(" </td> "); out.println(" </tr> "); out.println(" </table> "); out.println("</form> "); out.println("</body> "); out.println("</html> "); } /**Clean up resources*/ public void destroy() { }}⌨️ 快捷键说明
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