我正在尝试在独立模式下使用Oracle jdbc8（ojdbc8.jar）在Kafka中运行oracle源连接器。我已经从Oracle网站下载了汇合的jdbc jar和ojdbc8.jar。我已经在本地进行了测试，并且工作正常，但是在我们的测试环境中，它抛出了以下错误：
No suitable driver found for jdbc:oracle:thin:@x.x.x.x:yyyy:zzz for configuration Couldn't open connection to jdbc:oracle:thin:@x.x.x.x:yyyy:zzz
完整错误消息：
ERROR Failed to create job for xyz/xyz.properties (org.apache.kafka.connect.cli.ConnectStandalone:110)
[2020-03-11 13:13:32,085] ERROR Stopping after connector error (org.apache.kafka.connect.cli.ConnectStandalone:121)
java.util.concurrent.ExecutionException: org.apache.kafka.connect.runtime.rest.errors.BadRequestException: Connector configuration is invalid and contains the following 2 error(s):
Invalid value java.sql.SQLException: No suitable driver found for jdbc:oracle:thin:@x.x.x.x:1521:xyz for configuration Couldn't open connection to jdbc:oracle:thin:@x.x.x.x:1521:xyz
Invalid value java.sql.SQLException: No suitable driver found for jdbc:oracle:thin:@x.x.x.x:1521:xyz for configuration Couldn't open connection to jdbc:oracle:thin:@x.x.x.x:1521:xyz
插件的路径也很好，因为它正在注册所有jar。我尝试了一些在线发现的修复程序，其中包括将插件路径放入CLAsspATH变量中。它不起作用，引发了与上述相同的错误。我也能够分别ping和telnet IP和端口。
我的连接器配置如下：
name=oracle-jdbc-connect
connector.class=io.confluent.connect.jdbc.JdbcSourceConnector
tasks.max=1
connection.url=jdbc:oracle:thin:@x.x.x.x:yyyy:zzz
connection.user=xyz
connection.password=xyz
query=SELECT cast(ID AS NUMber(7,0)) AS ID,NAME FROM sch.tbl
mode=incrementing
incrementing.column.name=ID
topic.prefix=topic-test
schema.pattern=sch
numeric.mapping=best_fit
dialect.name=OracleDatabaseDialect
timestamp.delay.interval.ms=5000
key.converter=org.apache.kafka.connect.json.JsonConverter
value.converter=org.apache.kafka.connect.json.JsonConverter
key.converter.schemas.enable=false
value.converter.schemas.enable=false
decimal.handling.mode=double
include.schema.changes=false
此处给出的connection.user在Oracle中具有“只读”特权。这可以成为一个问题吗？
connect-standalone.properties文件如下：
key.converter=org.apache.kafka.connect.json.JsonConverter
value.converter=org.apache.kafka.connect.json.JsonConverter
key.converter.schemas.enable=true
value.converter.schemas.enable=true
offset.storage.file.filename=/tmp/connect.offsets
offset.flush.interval.ms=10000
rest.host.name=x.x.x.x
rest.port=8877 # Some random port
plugin.path=/home/plugins/,/usr/share/java,/usr/local/share/kafka/plugins
Oracle版本： 18c
Kafka版本： 2.3.0
Scala版本： 2.12.2
plugins.path： / home / plugins
插件路径结构：/ home / plugins / connectors / [文件夹，例如资产，文档，lib等]，ojdbc8.jar。
在/ home / plugins / connectors / lib里面，我有kafka-connect-jdbc-5.4.0.jar文件。