📄 cookiereader.java~13~
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package urlcookie;
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 CookieReader extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
java.io.IOException {
Cookie cookie = null;
//获得与此域关联的 Cookie 的数组
request.setCharacterEncoding("GBK");//处理中文
Cookie[] cookies = request.getCookies();
boolean hasCookies = false;
if (cookies != null) {
hasCookies = true;
}
// 显示每个 Cookie 的名称/值对
response.setContentType("text/html;charset=gb2312");
response.setCharacterEncoding("GBK");
java.io.PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Cookie 信息</title>");
out.println("</head>");
out.println("<body>");
if (hasCookies) {
out.println("<h2> 每个找到的 Cookie 的名称和值</h2>");
for (int i = 0; i < cookies.length; i++) {
cookie = cookies[i];
out.println("Cookie #" + (i + 1) + " 的名称： " + cookie.getName() +
"<br>");
out.println("Cookie #" + (i + 1) + " 的值： " + cookie.getValue() +
"<br><br>");
}
} else {
out.println("<h2> 此请求不包括任何 Cookie</h2>");
//创建一个Cookie
Cookie myCookie = new Cookie("username", "ACCP4.0");
myCookie.setMaxAge(60 * 1);
response.addCookie(myCookie);
}
out.println("</body>");
out.println("</html>");
out.close();
}
public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
java.io.IOException {
doGet(request, response);
}
}
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