Java如何在Servlet中读取cookie？
package org.nhooo.example.servlet;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
public class ReadCookieExample extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter writer = response.getWriter();
Cookie[] cookies = request.getCookies();
for (int i = 0; i < cookies.length; i++) {
writer.println("Name: " + cookies[i].getName() + "; Value: " + cookies[i].getValue());
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}上面的servlet的示例结果是：
Name: JSESSIONID; Value: A1BF9D70A238CB3359946ABA8FC3212D