DirectoryServices.Protocols.SearchRequest 的 LDAPFilter 字符编码使用本机 locale？

Question

.net 4.7.2，用以下代码连接 LDAP 服务器，并发送查询请求：

using ldap as new DirectoryServices.Protocols.LdapConnection(...)

ldap.SendRequest(New DirectoryServices.Protocols.SearchRequest("baseDN", "(givenName=中)", ...))

...

end using

查询字符串中的汉字被用本机代码页编码（936/GB2312 时为 D6 D0、932/Shift-JIS 时为 92 86），而 LDAP 服务器上的数据遵从 RFC4514、是 UTF-8 编码的 E4 B8 AD。

问题：是否应统一使用 UTF-8 发送请求？这是否是 .net 的实现 bug？

Answer 1

Hi candy,

经过我的搜索，我们在使用LDAP的字符串时，需要使用UTF-8的编码，LDAP SDK在对请求中使用的字符串进行编码时将自动使用UTF-8编码。

你可以看看下面的链接，有相关人员进行了解释。

How to support Chinese characters in search base

Best Regards,

Jack

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Answer 2

症状是 .net 没遵循 UTF-8 规则。