📄 userlistservlet.java
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package com.tarena.serv.app;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.tarena.persitence.User;
public class UserListServlet extends HttpServlet {
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
response.setCharacterEncoding("gbk");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>list</title>");
out.println("</head>");
out.println("<body>");
out.println("<h3 align=\"center\">list</h3>");
out.println("<hr>");
out.println("<table width=\"600\" align=\"center\" border=\"1\">");
out.println("<tr>");
out.println("<th>no</th>");
out.println("<th>username</th>");
out.println("<th>gender</th>");
out.println("<th>birthday</th>");
out.println("</tr>");
List<User> users = (List<User>) request.getAttribute("users");
int no = 1;
Iterator<User> iter = users.iterator();
while (iter.hasNext()) {
User user = iter.next();
out.println("<tr>");
out.println("<td align=\"center\">" + no + "</td>");
out.println("<td align=\"center\">" + user.getUserName() + "</td>");
out.println("<td align=\"center\">" + user.getGender() + "</td>");
out.println("<td align=\"center\">"
+ (user.getBirthday() == null ? " " : user
.getBirthday()) + "</td>");
out.println("</tr>");
no++;
}
out.println("</table>");
out.println("</body>");
out.println("</html>");
}
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
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