📄 cookieservlet.java
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package com.tarena.serv.state;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class CookieServlet extends HttpServlet {
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
Cookie userName = new Cookie("username", "admin");
userName.setMaxAge(60 * 60 * 24 * 365);
Cookie password = new Cookie("password", "123");
response.addCookie(userName);
response.addCookie(password);
response.setContentType("text/html;charset=gbk");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>add cookie</title>");
out.println("</head>");
out.println("<body>");
out.println("<h3 align=\"center\">cookies have been set on your client.</h3>");
out.println("</body>");
out.println("</html>");
}
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=gbk");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>get cookies</title>");
out.println("</head>");
out.println("<body>");
out.println("<h3 align=\"center\">all cookies in current request</h3>");
out.println("<hr>");
Cookie[] cookies = request.getCookies();
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
out.println(cookies[i].getName() + "=" + cookies[i].getValue());
out.println("<br>");
}
}
out.println("</body>");
out.println("</html>");
}
}
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