無效值java.sql.SQLException：應用程序請求者無法建立連接

Question

ibm db2 as400的jdbc jar文件位於以下位置：

/confluent-4.1.0/share/java/kafka-connect-jdbc\jt400.jar

I am trying to configure the source file from Json file 
{ 
"name":"SOURCE_NAME", 
"config":{ 
"connector.class":"io.confluent.connect.jdbc.JdbcSourceConnector", 
"tasks.max":"1", 
"topic.prefix":"TOPIC_NAME", 
"connection.url":"jdbc:as400://IP_ADDRESS:PORT;libraries=DATABASE;", 
"connection.user":"USER_NAME", 
"connection.password":"PASSWORD", 
"key.converter": "io.confluent.connect.avro.AvroConverter", 
"key.converter.schema.registry.url": "http://localhost:8081", 
"value.converter": "io.confluent.connect.avro.AvroConverter", 
"value.converter.schema.registry.url": "http://localhost:8081", 
"log4j.logger.io.confluent.connect.jdbc":"DEBUG", 
"mode": "incrementing", 
"incrementing.column.name": "ID", 
"query": "SELECT * FROM TABLE", 
"poll.interval.ms": "60000", 
"batch.max.rows": "10000", 
"table.types": "TABLE", 
"plugin.path":"/confluent-4.1.0/share/java" 
} 
}

我遇到錯誤

{"error_code":400,"message":"Connector configuration is invalid and contains the following 2 error(s): 
Invalid value java.sql.SQLException: The application requester cannot establish the connection. (Connection refused (Connection refused)) for configuration Couldn't open connection to jdbc:as400://IP_ADDRESS:PORT/DATABASE 
Invalid value java.sql.SQLException: The application requester cannot establish the connection. (Connection refused (Connection refused)) for configuration Couldn't open connection to jdbc:as400://IP_ADDRESS:PORT/DATABASE 
You can also find the above list of errors at the endpoint `/{connectorType}/config/validate`"}

我已經成功配置了Microsoft SQL Server的Connect源，並且配置似乎非常相似。 這里可能出了什么問題。

Answer 1

截至目前，Kafka-Connect尚未提供AS400支持。 如果需要AS400支持，請在JDBC連接器的db2方言下添加AS400並重建連接器

Answer 2

目前，Kafka-jdbc-connector（Confluent）不支持DB2 AS400 / iseries。 如果要使用db2 AS400，請在建立連接之前在as400方言提供程序中添加“ as400 ”，在pom.xml中添加依賴項“ jt400 ”，並在“ GenericDatabaseDialect”類中加載“ com.ibm.as400.access.AS400JDBCDriver ”。 在DB2方言中添加提供者

 public Provider() {
  super(Db2DatabaseDialect.class.getSimpleName(), "db2", "db2j", "ibmdb","as400");
}

在通用數據庫方言中添加AS400 Jdbc驅動程序

    try {
  Class.forName("com.ibm.as400.access.AS400JDBCDriver");
} catch (ClassNotFoundException e) {
  throw new SQLException("AS400JDBC Driver Not found");
}