📄 userlistservlet.java
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package com.allan.ums.view;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Collection;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.allan.ums.entity.User;
public class UserListServlet extends HttpServlet {
/**
* 以表格的形式显示用户的信息，要求一个用户 占用表格一行，一个属性一列。
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=gbk");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">");
out.println("<html>");
out.println("<head>");
out.println("<title>用户列表</title>");
out.println("</head>");
out.println("<body>");
out.println("<h3 align=\"center\">用户列表</h3>");
out.println("<hr>");
out
.println("<table cellspacing=\"1\" cellpadding=\"1\" border=\"1\" width=\"500\" align=\"center\">");
out.println("<tr>");
out.println("<th>序号</th>");
out.println("<th>用户名</th>");
out.println("<th>性别</th>");
out.println("<th>邮件</th>");
out.println("</tr>");
Collection<User> users = (Collection<User>) request
.getAttribute("users");
int index = 1;
for (User user : users) {
out.println("<tr>");
out.println("<td align=\"center\">" + index + "</td>");
out.println("<td align=\"center\">" + user.getUsername()
+ " </td>");
out.println("<td align=\"center\">"
+ (user.getGender().equals("m") ? "男" : "女") + "</td>");
out.println("<td>" + user.getEmail() + " </td>");
out.println("</tr>");
index++;
}
out.println("</table>");
out.println("</body>");
out.println("</html>");
out.flush();
out.close();
}
}
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