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最新推荐文章于 2022-07-13 16:36:11 发布

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最新推荐文章于 2022-07-13 16:36:11 发布

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本文链接：https://blog.youkuaiyun.com/qq_33868316/article/details/80350835

本文提供了一个使用Java实现的示例，展示了如何利用Apache HttpClient库来发送HTTP请求，并通过Cookies进行会话管理。该示例包括了获取JSESSIONID以及如何在后续请求中设置并使用这个值。

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package com.yinchengku.apollo;

import java.io.IOException;
import java.net.URI;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.CookieStore;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.cookie.BasicClientCookie;
import org.apache.http.util.EntityUtils;

public class KeepCookies {

String JSESSIONID;

public static void main(String[] args) {

}

public String getJSESSIONID(URI uri) throws Exception, IOException {

CloseableHttpClient httpclient = HttpClients.createDefault();
HttpPost httppost = new HttpPost(uri);
HttpClientContext context = HttpClientContext.create();

HttpResponse f = httpclient.execute(httppost, context);

String j = EntityUtils.toString(f.getEntity());
System.out.println(j);

List<Cookie> list = context.getCookieStore().getCookies();// 获取Cookie

for (int i = 0; i < list.size(); i++) {
if (list.get(i).getName().equals("JSESSIONID")) {

// 获取JSESSIONID
JSESSIONID = list.get(i).getValue();
System.out.println("JSESSIONID = " + JSESSIONID);
}

// if(list.get(i).getName().equals("cookie_user")){
// String cookie_user = list.get(i).getValue();
// System.out.println("cookie_user = "+cookie_user);
// }

}
return JSESSIONID;
}

public String test(URI u,String jsessionid) throws Exception {

CookieStore cookieStore = new BasicCookieStore();
BasicClientCookie cookie = new BasicClientCookie("JSESSIONID", JSESSIONID);

System.out.println(cookie);

cookie.setVersion(0);
cookie.setDomain("host");
cookie.setPath("/");
cookieStore.addCookie(cookie);
CloseableHttpClient httpclienta = HttpClients.custom()
.setDefaultCookieStore(cookieStore)//设置Cookie
.build();

HttpPost httpgPost = new HttpPost(u);

CloseableHttpResponse response = httpclienta.execute(httpgPost);

return EntityUtils.toString(response.getEntity());

}

}