package cc.openhome.view;
import java.io.IOException;
import java.io.PrintWriter;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/member.view")
public class MemberView extends HttpServlet {
private static final long serialVersionUID = 1L;
private final String LOGIN_PATH = "index.html";
protected void doGet(
HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
protected void doPost(
HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
protected void processRequest(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
if(request.getSession().getAttribute("login") == null) {
response.sendRedirect(LOGIN_PATH);
return;
}
String username = getUsername(request);
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<meta charset='UTF-8'>");
out.println("<title>Gossip 微博</title>");
out.println("<link rel='stylesheet' href='css/member.css' type='text/css'>");
out.println("</head>");
out.println("<body>");
out.println("<div class='leftPanel'>");
out.println("<img src='images/caterpillar.jpg' alt='Gossip 微博' /><br><br>");
out.printf("<a href='logout'>登出 %s</a>", username);
out.println("</div>");
out.println("<form method='post' action='new_message'>");
out.println("分享新鲜事...<br>");
String preBlabla = request.getParameter("blabla");
if(preBlabla == null) {
preBlabla = "";
}
else {
out.println("信息要 140 字以內<br>");
}
out.printf("<textarea cols='60' rows='4' name='blabla'>%s</textarea><br>", preBlabla);
out.println("<button type='submit'>送出</button>");
out.println("</form>");
out.println("<table border='0' cellpadding='2' cellspacing='2'>");
out.println("<thead>");
out.println("<tr><th><hr></th></tr>");
out.println("</thead>");
out.println("<tbody>");
@SuppressWarnings("unchecked")
Map<Long, String> messages = (Map<Long, String>) request.getAttribute("messages");
messages.forEach((millis, blabla) -> {
LocalDateTime dateTime =
Instant.ofEpochMilli(millis)
.atZone(ZoneId.of("Asia/Taipei"))
.toLocalDateTime();
out.println("<tr><td style='vertical-align: top;'>");
out.printf("%s<br>", username);
out.printf("%s<br>", blabla);
out.println(dateTime);
out.println("<form method='post' action='del_message'>");
out.printf("<input type='hidden' name='millis' value='%s'>", millis);
out.println("<button type='submit'>刪除</button>");
out.println("</form>");
out.println("<hr></td></tr>");
});
out.println("</tbody>");
out.println("</table>");
out.println("<hr>");
out.println("</body>");
out.println("</html>");
}
private String getUsername(HttpServletRequest request) {
return (String) request.getSession().getAttribute("login");
}
}
Web原理及应用：微博—会员管理
需积分: 5 92 浏览量
2022-03-06
19:50:52
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实验3.zip （32个子文件） 
实验3 src cc openhome view 
RegisterError.java 1KB RegisterSuccess.java 1KB MemberView.java 4KB controller NewMessage.java 2KB Logout.java 787B DelMessage.java 2KB Register.java 3KB Login.java 2KB Member.java 3KB .classpath 999B build classes cc openhome view RegisterError.class 3KB RegisterSuccess.class 2KB MemberView.class 5KB controller Logout.class 1KB Register.class 5KB NewMessage.class 3KB Member.class 5KB DelMessage.class 2KB Login.class 3KB .settings org.eclipse.wst.jsdt.ui.superType.container 49B org.eclipse.wst.common.project.facet.core.xml 344B org.eclipse.wst.jsdt.ui.superType.name 6B org.eclipse.wst.common.component 470B .jsdtscope 567B org.eclipse.jdt.core.prefs 547B WebContent META-INF MANIFEST.MF 39B images 
caterpillar.jpg 5KB css gossip.css 337B
register.html 948B index.html 1KB WEB-INF lib web.xml 652B .project 907B
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