我正在尝试通过Java HttpClient应用程序将会话设置重建到Web服务器。我选择了与Java 9和Java 10一起提供的孵化HttpClient。
使用 Chrome，我从单个请求中捕获了以下标头：
General
Request URL: https://<some_url>?user_id=1176&onlyDirectUserItems=true&onlyAssignedToUser=true&show=Unresolved&itemsFilter=0
Request Method: GET
Status Code: 302 Found
Remote Address: <theProxy>:8000
Referrer Policy: no-referrer-when-downgrade
Response Headers
Connection: Keep-Alive
Content-Length: 164
Content-Type: text/html; charset=iso-8859-1
Date: Fri, 08 Jun 2018 14:33:16 GMT
Keep-Alive: timeout=300, max=100
Location: https://<another_url>:443/nesp/app/plogin?agAppNa=app_me_company_ext&c=secure/name/password/uri&target=%22https://<another-usr>/browseIssues.spr?user_id=1176&onlyDirectUserItems=true&onlyAssignedToUser=true&show=Unresolved&itemsFilter=0%22
P3p: CP="NOI"
Server: Apache
Set-Cookie: IPCZQX03224bfb75=030003000000000000000000000000008f7aed69; path=/; domain=.me.de
Via: 1.1 <host> (Access Gateway-ag-7169149846802036-13837511)
Request Headers
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate, br
Accept-Language: de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7
Connection: keep-alive
Cookie: org.ditchnet.jsp.tabs.wiki=wiki-wysiwyg; ZNPCQ003-31393000=6c2f99a3; ZNPCQ003-32323200=cd188fdd
DNT: 1
Host: <host>
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36
Query String Parameters
user_id: 1176
onlyDirectUserItems: true
onlyAssignedToUser: true
show: Unresolved
itemsFilter: 0
可以看到响应标头提供了一个URL(标头键："位置"(，我需要接下来抓取并调用该URL。但是使用我的http客户端，我失败了状态代码400并且几乎一无所获
这是我的代码
url = "https://<some_url>?user_id=1176&onlyDirectUserItems=true&onlyAssignedToUser=true&show=Unresolved&itemsFilter=0";
HttpClient client = HttpClient.newBuilder()
.proxy(ProxySelector.of(new InetSocketAddress("<theProxy>", 8000)))
.cookieHandler(new CookieManager(null, CookiePolicy.ACCEPT_ALL))
.followRedirects(HttpClient.Redirect.SAME_PROTOCOL)
.build();
HttpRequest request = HttpRequest.newBuilder()
.header("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0")
.header("Upgrade-Insecure-Requests", "1")
// .header("Host", "<host>")
.header("Connection", "keep-alive")
.header("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8")
.header("Accept-Language", "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7")
.header("Accept-Encoding", "gzip, deflate, br")
.uri(new URI(url))
.build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandler.asString());
HttpHeaders headers = response.headers();
Map<String, List<String>> headerMap= headers.map();
for (String key : headerMap.keySet()) {
System.out.println(">"+key+"<");
for (String value : headerMap.get(key)) {
System.out.println(" " + value);
}
}
System.out.println(response.statusCode());
System.out.println(response.body());
我不知道可能出了什么问题以及如何继续完成这项工作。我希望有人能告诉我下一步该怎么做。
我也不明白的是：我不得不删除标题"主机" - 因为我得到了回复："您的浏览器发送了该服务器无法理解的请求。
与Chrome列表中可以找到的标题完全相同
我可以让它用Apache HttpClient运行。我无法判断孵化的HttpClient出了什么问题 - 但可以肯定的是，它不是Java 9/10交付的完全集成部分。