java 中的 java.net.CookieHandler 类
原文:https://www . geesforgeks . org/Java-net-cookiehandler-class-in-Java/
Java 中 CookieHandler 类的对象提供了一种回调机制，用于将 HTTP 状态管理策略实现挂接到 HTTP 协议处理程序中。如何发出 HTTP 请求和响应的机制由 HTTP 状态管理机制指定。
HTTP 协议处理程序也使用的系统范围的 CookieHandler 通常通过执行 CookieHandler . setdefault(CookieHandler)来注册。当前注册的 CookieHandler 通常通过调用 CookieHandler.getDefault()来检索。
申报:
public abstract class CookieHandler
extends Object
施工方:
CookieHandler();
示例:
Java 语言(一种计算机语言，尤用于创建网站)
// Java program to demonstrate the usage
// of CookieHandler Class
import java.net.CookieHandler;
import java.net.CookieManager;
import java.net.CookieStore;
import java.net.HttpCookie;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
public class JavaCookieHandlerExample1 {
public static void main(String args[]) throws Exception
{
String uri = "https://www.google.com";
// Instantiate CookieManager;
CookieManager c = new CookieManager();
// First set the default cookie manager.
CookieHandler.setDefault(c);
URL url = new URL(uri);
// All the following subsequent URLConnections
// will use the same cookie manager.
URLConnection connection = url.openConnection();
connection.getContent();
// Get cookies from underlying CookieStore
CookieStore cookieStore = c.getCookieStore();
List<HttpCookie> cookieList
= cookieStore.getCookies();
for (HttpCookie cookie : cookieList) {
// Get domain set for the cookie
System.out.println("The domain is: "
+ cookie.getDomain());
}
}
}
输出:
The domain is: .google.com
CookieHandler 类在 Java 中提供了 以下方法:
| **Method** | **Description** | | --- | --- | | get（URI uri，地图 < String，List >requestHeaders） | This method gets all applicable cookies of the URI specified in the request from the cookie cache. | | getDefault（） | This method gets the system-wide cookie handler. | | put(URI uri，映射< String，List>响应头) | This method sets all applicable Cookies, for example, the response header field named Set-Cookie2, which is presented to cookie cache in the response header. | | 设置默认值(CookieHandler 钱德勒) | This method sets or unsets the system-wide cookie handler. |版权属于：月萌API www.moonapi.com，转载请注明出处
