【发布时间】：2015-01-23 09:38:06
【问题描述】：
我们在 Windows Server 2008 R2 上使用 sonatype nexus。为了能够访问外部存储库，我们使用公司的 http 代理服务器。因此，我们在Nexus GUI->Server 中输入了值“代理主机”、“代理端口”、“用户名”和“密码”。从 Nexus 2.2 迁移到 2.10.0-02 后，nexus 服务器无法访问外部存储库。
如果我现在转到 Nexus GUI-> Repositories->Central->Browse Remote->Refresh 远程存储库不可见。 wrapper.log 包含以下日志条目（原始数据已替换为<proxyhost>:<proxyport> and <proxyuser>）：
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.apachehttpclient.Hc4ProviderImpl - <proxyhost>:<proxyport> proxy authentication setup for remote storage with username '<proxyuser>'
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.apachehttpclient.Hc4ProviderImpl - http proxy setup with host '<proxyhost>'
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.plugins.rrb.MavenRepositoryReader - remotePath=
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.plugins.rrb.MavenRepositoryReader - Requesting: GET http://repo1.maven.org/maven2/?delimiter=/ HTTP/1.1
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.apachehttpclient.Hc4ProviderImpl$ManagedClientConnectionManager - Connection request: [route: {}->http://<proxyhost>:<proxyport>->http://repo1.maven.org:80][total kept alive: 1; route allocated: 1 of 20; total allocated: 2 of 200]
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.apachehttpclient.Hc4ProviderImpl$ManagedClientConnectionManager - Connection leased: [id: 25][route: {}->http://<proxyhost>:<proxyport>->http://repo1.maven.org:80][total kept alive: 0; route allocated: 1 of 20; total allocated: 2 of 200]
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.plugins.rrb.MavenRepositoryReader - Status code: 407
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.apachehttpclient.Hc4ProviderImpl$ManagedClientConnectionManager - Connection [id: 25][route: {}->http://<proxyhost>:<proxyport>->http://repo1.maven.org:80] can be kept alive for 30.0 seconds
| 2014-11-25 08:55:25 DEBUG [qtp949677682-69] - org.sonatype.nexus.apachehttpclient.Hc4ProviderImpl$ManagedClientConnectionManager - Connection released: [id: 25][route: {}->http://<proxyhost>:<proxyport>->http://repo1.maven.org:80][total kept alive: 1; route allocated: 1 of 20; total allocated: 2 of 200]
| 2014-11-25 08:55:25 TRACE [qtp949677682-69] - org.sonatype.nexus.plugins.rrb.MavenRepositoryReader - <HEAD><TITLE>Proxy Authorization Required</TITLE></HEAD>
| <BODY BGCOLOR="white" FGCOLOR="black"><H1>Proxy Authorization Required</H1><HR>
| <FONT FACE="Helvetica,Arial"><B>
| Description: Authorization is required for access to this proxy</B></FONT>
| <HR>
| <!-- default "Proxy Authorization Required" response (407) -->
| </BODY>
Wireshark 捕获如下所示：
43 1.803445000 <nexus> <proxyhost> HTTP 278 GET http://repo1.maven.org/maven2/?delimiter=/ HTTP/1.1
51 1.814045000 <nexus> <proxyhost> HTTP 278 GET http://repo1.maven.org/maven2/?delimiter=/ HTTP/1.1
55 1.819731000 <proxyhost> <nexus> HTTP 1014 HTTP/1.1 407 Proxy Authorization Required (text/html)
所有 GET 请求都没有任何身份验证标头。 为什么 Nexus 在 HTTP 407 之后不使用凭据重复 GET 请求？
有人有类似的问题吗？
【问题讨论】：