chat_leavechat.java
来自「jsp 应用开发详解源代码 电子工业出版社 包含书中个源代码」· Java 代码 · 共 43 行
JAVA
43 行
package ec;import javax.servlet.*;import javax.servlet.http.*;import java.io.*;import java.util.*;public class chat_leavechat 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("<head>"); out.println("<title>离开啦</title>"); out.println("</head>"); out.println("<body>"); String user=(String)session.getAttribute("username"); Vector temp=(Vector)getServletContext().getAttribute("chatUser"); temp.removeElement(user); getServletContext().setAttribute("chatUser",temp); temp=(Vector)getServletContext().getAttribute("chatMsg"); temp.addElement("<font color='#0000FF' size='2'>blueriver管理员通告:"); temp.addElement(user+"离开了本聊天室,欢迎下次再来...<br></font>"); getServletContext().setAttribute("chatMsg",temp); out.println("<br>"); out.println("<center>真诚感想您的光临！！！</center><br>"); out.println("<center>欢迎下次再来！！！</center><br>"); out.println("<center><a href=\"javascript:window.close();\">关闭窗口！！！</a></center>"); out.println("</body>"); out.println("</html>"); } /**Clean up resources*/ public void destroy() { }}⌨️ 快捷键说明
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