我想运行以下命令来创建一个使用MongoDB Java Driver的用户,
client = new MongoClient(mongoClientURI);
MongoDatabase database = client.getDatabase("db_1");
Document createUserCommand = new Document();
createUserCommand.put("createUser", "abc");
createUserCommand.put("pwd", "abc");
createUserCommand.put("roles", new String[]{"userAdmin", "read", "readWrite", "dbAdmin", "dbOwner"}); database.runCommand(createUserCommand);
但发生以下异常:
Exception in thread "main" org.bson.codecs.configuration.CodecConfigurationException: Can't find a codec for class [Ljava.lang.String;.
at org.bson.codecs.configuration.CodecCache.getOrThrow(CodecCache.java:46)
at org.bson.codecs.configuration.ProvidersCodecRegistry.get(ProvidersCodecRegistry.java:63)
at org.bson.codecs.configuration.ChildCodecRegistry.get(ChildCodecRegistry.java:51)
at org.bson.codecs.DocumentCodec.writeValue(DocumentCodec.java:174)
at org.bson.codecs.DocumentCodec.writeMap(DocumentCodec.java:189)
at org.bson.codecs.DocumentCodec.encode(DocumentCodec.java:131)
at org.bson.codecs.DocumentCodec.encode(DocumentCodec.java:45)
at org.bson.codecs.BsonDocumentWrapperCodec.encode(BsonDocumentWrapperCodec.java:63)
查看作为数组的角色字段会导致此问题,有人可以看看这个问题吗?感谢
答案 0 :(得分:3)
createUserCommand.put("roles", new String[]{"userAdmin", "read", "readWrite", "dbAdmin", "dbOwner"});
database.runCommand(createUserCommand);
应该是
List<String> roles = new ArrayList<String>();
roles.add("userAdmin); ... createUserCommand.put("roles", roles); database.runCommand(createUserCommand);
看起来它支持List,而不是Array,这实际上是ugl