如何覆盖http-header“Host”在HttpURLConnection? [英] How to overwrite http-header "Host" in a HttpURLConnection?
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问题描述
我的代码如下所示:
网址url =新网址(1.0.0.25/otfg/services) ;
HttpURLConnection cnx = url.openConnection();
cnx.setRequestProperty(Host,example.org);
但是当我使用tcpdump记录传出包时,http-headerHost是1.0.0.25。
是否可以在发送过程的后期阶段覆盖http头主机,如果是的话,我该如何避免这种行为。
解决方案
最后一条评论解决了我的问题:
System.setProperty(sun.net.http.allowRestrictedHeaders,true)
或者在虚拟机启动时:
-Dsun.net.http.allowRestrictedHeaders = true
My code is like the following:
URL url = new URL("1.0.0.25/otfg/services");
HttpURLConnection cnx = url.openConnection();
cnx.setRequestProperty("Host", "example.org");
But when I log the outgoing packages with tcpdump the http-header "Host" is 1.0.0.25.
Could it be that the http-header "Host" is overwritten at a later stage of the sending process, if yes how can I avoid this behavior.
解决方案
The last comment solved my problem:
System.setProperty("sun.net.http.allowRestrictedHeaders", "true")
Or at VM startup:
-Dsun.net.http.allowRestrictedHeaders=true
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