相关疑难解决方法(0)

运行我的应用程序时，此连接引发了此错误套接字异常。

INFO 5231 --- [nio-8087-exec-1] org.mongodb.driver.connection: Closed connection [connectionId{localValue:2}] to 192.168.0.2:27017 because there was a socket exception raised by this connection.**

    org.springframework.data.mongodb.UncategorizedMongoDbException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='admin', source='campbell', password=<hidden>, mechanismProperties={}}; nested exception is com.mongodb.MongoSecurityException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='admin', source='campbell', password=<hidden>, mechanismProperties={}}
        at org.springframework.data.mongodb.core.MongoExceptionTranslator.translateExceptionIfPossible(MongoExceptionTranslator.java:138)
        at org.springframework.data.mongodb.core.MongoTemplate.potentiallyConvertRuntimeException(MongoTemplate.java:2756)
        at org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:2666)
        at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:2409)
        at org.springframework.data.mongodb.core.ExecutableFindOperationSupport$ExecutableFindSupport.doFind(ExecutableFindOperationSupport.java:214)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) …

我正在尝试允许 mongo 用户连接到 mongo 数据库，但无论我给用户什么角色，身份验证都失败并在日志中显示此错误：

2019-08-09T17:03:05.486+0000 I ACCESS   [conn13] SCRAM-SHA-1 authentication failed for username on dbname from client 127.0.0.1:38790 ; UserNotFound: Could not find user username@dbname
2019-08-09T17:03:05.488+0000 I NETWORK  [conn13] end connection 127.0.0.1:38790 (0 connections now open)

以下是内容 /etc/mongodb.conf

# mongodb.conf

# Where to store the data.
dbpath=/var/lib/mongodb

#where to log
logpath=/var/log/mongodb/mongodb.log

logappend=true

bind_ip = 0.0.0.0
port = 27017

# Enable journaling, http://www.mongodb.org/display/DOCS/Journaling
journal=true

auth=true

这是我创建用户的方式：

db.createUser({
  user: "username",
  pwd: "secret",
  roles: [
    { role: "userAdmin", db: "dbname" },
    { …