如何检查用户是否有异议 [英] How to check is an user has a role on discord
问题描述
我正在努力寻找一种方法来检查用户是否具有角色.我知道如何找到特定角色:
I am struggling to find a way to check if an user has a role. I know how to find a certain role:
public Role findRole(Guild guild, String name) {
List<Role> roles = guild.getRolesByName(name, true);
if (roles.size() <= 0) {
throw new RuntimeException("Role with name " + name + " on Guild " + guild.getName() + " not found!");
} else {
return roles.get(0);
}
}
我有一个角色: Role neededEole = findRole(event.getGuild(),"Admin");
我知道如何搜索用户: String user = event.getAuthor().getId();
或: User user = event.getAuthor();
I know how to search an user: String user=event.getAuthor().getId();
or: User user=event.getAuthor();
但是我不知道如何在JDA中使这两个一起工作,以检查该用户是否具有该角色.
But i don't know how to get those two work together in JDA to check if that user has that role.
可以请人帮我吗?
推荐答案
Member
对象将用户置于行会上下文中.您可以使用 Guild#getMember(user)
获得成员.这使您可以选择检索该用户的行会信息:
The Member
object puts a user in the guild context. You can get the member with Guild#getMember(user)
. This gives you the option to retrieve guild information of this user:
Member member = guild.getMember(user);
Member member = guild.getMemberById(userId);
List<Member> member = guild.getMembersByName(name, true);
List<Member> member = guild.getMembersByRoles(role);
public Role findRole(Member member, String name) {
List<Role> roles = member.getRoles();
return roles.stream()
.filter(role -> role.getName().equals(name)) // filter by role name
.findFirst() // take first result
.orElse(null); // else return null
}
Other ways to access a member instance are outlined in the See Also
section of the member documentation: Member. Some events also offer a getMember()
alternative if the event could happen in a guild context.
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