我在准备序列和黑斑羚方面遇到了一些麻烦。这是我的示例代码：
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
public class TestPreparedStatement {
public static void main(String[] args) {
String connectionString = "jdbc:impala://[MY_IP]:[MY_PORT];UseNativeQuery=1;AuthMech=3";
String username = "username";
String password = "password";
try {
Class.forName("com.cloudera.impala.jdbc4.Driver");
Connection _conn = DriverManager.getConnection(connectionString, username, password);
String _sql = "select number_impala, string_impala from my_table where number_impala = ?";
PreparedStatement pstm = _conn.prepareStatement(_sql);
pstm.setObject(1, 1);
pstm.executeQuery();
pstm.close();
_conn.close();
} catch (SQLException | ClassNotFoundException ex) {
Logger.getLogger(TestPreparedStatement.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
由于某种原因，我可能会受到parsexception的影响？符号中的符号要在准备序列中使用。stacktrace在这里：
log4j:WARN No appenders could be found for logger (org.apache.thrift.transport.TSaslTransport).
log4j:WARN Please initialize the log4j system properly.
Abr 27, 2018 2:44:24 PM TestPreparedStatement main
SEVERE: null
java.sql.SQLException: [Simba][ImpalaJDBCDriver](500051) ERROR processing query/statement. Error Code: 40000, SQL state: TStatus(statusCode:ERROR_STATUS, infoMessages:[*org.apache.hive.service.cli.HiveSQLException:Error while compiling statement: FAILED: ParseException line 1:72 cannot recognize input near '?' '<EOF>' '<EOF>' in expression specification:28:27, org.apache.hive.service.cli.operation.Operation:toSQLException:Operation.java:400, org.apache.hive.service.cli.operation.SQLOperation:prepare:SQLOperation.java:187, org.apache.hive.service.cli.operation.SQLOperation:runInternal:SQLOperation.java:271, org.apache.hive.service.cli.operation.Operation:run:Operation.java:337, org.apache.hive.service.cli.session.HiveSessionImpl:executeStatementInternal:HiveSessionImpl.java:439, org.apache.hive.service.cli.session.HiveSessionImpl:executeStatement:HiveSessionImpl.java:405, sun.reflect.GeneratedMethodAccessor51:invoke::-1, sun.reflect.DelegatingMethodAccessorImpl:invoke:DelegatingMethodAccessorImpl.java:43, java.lang.reflect.Method:invoke:Method.java:497, org.apache.hive.service.cli.session.HiveSessionProxy:invoke:HiveSessionProxy.java:78, org.apache.hive.service.cli.session.HiveSessionProxy:access$000:HiveSessionProxy.java:36, org.apache.hive.service.cli.session.HiveSessionProxy$1:run:HiveSessionProxy.java:63, java.security.AccessController:doPrivileged:AccessController.java:-2, javax.security.auth.Subject:doAs:Subject.java:422, org.apache.hadoop.security.UserGroupInformation:doAs:UserGroupInformation.java:1917, org.apache.hive.service.cli.session.HiveSessionProxy:invoke:HiveSessionProxy.java:59, com.sun.proxy.$Proxy22:executeStatement::-1, org.apache.hive.service.cli.CLIService:executeStatement:CLIService.java:257, org.apache.hive.service.cli.thrift.ThriftCLIService:ExecuteStatement:ThriftCLIService.java:501, org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement:getResult:TCLIService.java:1313, org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement:getResult:TCLIService.java:1298, org.apache.thrift.ProcessFunction:process:ProcessFunction.java:39, org.apache.thrift.TBaseProcessor:process:TBaseProcessor.java:39, org.apache.hive.service.auth.TSetIpAddressProcessor:process:TSetIpAddressProcessor.java:56, org.apache.thrift.server.TThreadPoolServer$WorkerProcess:run:TThreadPoolServer.java:286, java.util.concurrent.ThreadPoolExecutor:runWorker:ThreadPoolExecutor.java:1142, java.util.concurrent.ThreadPoolExecutor$Worker:run:ThreadPoolExecutor.java:617, java.lang.Thread:run:Thread.java:745, *org.apache.hadoop.hive.ql.parse.ParseException:line 1:72 cannot recognize input near '?' '<EOF>' '<EOF>' in expression specification:32:5, org.apache.hadoop.hive.ql.parse.ParseDriver:parse:ParseDriver.java:204, org.apache.hadoop.hive.ql.parse.ParseDriver:parse:ParseDriver.java:166, org.apache.hadoop.hive.ql.Driver:compile:Driver.java:522, org.apache.hadoop.hive.ql.Driver:compileInternal:Driver.java:1356, org.apache.hadoop.hive.ql.Driver:compileAndRespond:Driver.java:1343, org.apache.hive.service.cli.operation.SQLOperation:prepare:SQLOperation.java:185], sqlState:42000, errorCode:40000, errorMessage:Error while compiling statement: FAILED: ParseException line 1:72 cannot recognize input near '?' '<EOF>' '<EOF>' in expression specification), Query: select number_impala, string_impala from my_table where number_impala = ?.
at com.cloudera.impala.hivecommon.api.HS2Client.executeStatementInternal(HS2Client.java:832)
at com.cloudera.impala.hivecommon.api.HS2Client.executeStatement(HS2Client.java:287)
at com.cloudera.impala.hivecommon.dataengine.HiveJDBCNativeQueryExecutor.executeQuery(HiveJDBCNativeQueryExecutor.java:504)
at com.cloudera.impala.hivecommon.dataengine.HiveJDBCNativeQueryExecutor.<init>(HiveJDBCNativeQueryExecutor.java:244)
at com.cloudera.impala.hivecommon.dataengine.HiveJDBCDataEngine.prepare(HiveJDBCDataEngine.java:234)
at com.cloudera.impala.jdbc.common.SPreparedStatement.<init>(SPreparedStatement.java:285)
at com.cloudera.impala.jdbc.jdbc4.S4PreparedStatement.<init>(S4PreparedStatement.java:106)
at com.cloudera.impala.jdbc.jdbc4.JDBC4ObjectFactory.createPreparedStatement(JDBC4ObjectFactory.java:167)
at com.cloudera.impala.hivecommon.core.jdbc4.HiveJDBC4ObjectFactory.createPreparedStatement(HiveJDBC4ObjectFactory.java:118)
at com.cloudera.impala.jdbc.common.SConnection.prepareStatement(SConnection.java:1143)
Caused by: com.cloudera.impala.support.exceptions.GeneralException: [Simba][ImpalaJDBCDriver](500051) ERROR processing query/statement. Error Code: 40000, SQL state: TStatus(statusCode:ERROR_STATUS, infoMessages:[*org.apache.hive.service.cli.HiveSQLException:Error while compiling statement: FAILED: ParseException line 1:72 cannot recognize input near '?' '<EOF>' '<EOF>' in expression specification:28:27, org.apache.hive.service.cli.operation.Operation:toSQLException:Operation.java:400, org.apache.hive.service.cli.operation.SQLOperation:prepare:SQLOperation.java:187, org.apache.hive.service.cli.operation.SQLOperation:runInternal:SQLOperation.java:271, org.apache.hive.service.cli.operation.Operation:run:Operation.java:337, org.apache.hive.service.cli.session.HiveSessionImpl:executeStatementInternal:HiveSessionImpl.java:439, org.apache.hive.service.cli.session.HiveSessionImpl:executeStatement:HiveSessionImpl.java:405, sun.reflect.GeneratedMethodAccessor51:invoke::-1, sun.reflect.DelegatingMethodAccessorImpl:invoke:DelegatingMethodAccessorImpl.java:43, java.lang.reflect.Method:invoke:Method.java:497, org.apache.hive.service.cli.session.HiveSessionProxy:invoke:HiveSessionProxy.java:78, org.apache.hive.service.cli.session.HiveSessionProxy:access$000:HiveSessionProxy.java:36, org.apache.hive.service.cli.session.HiveSessionProxy$1:run:HiveSessionProxy.java:63, java.security.AccessController:doPrivileged:AccessController.java:-2, javax.security.auth.Subject:doAs:Subject.java:422, org.apache.hadoop.security.UserGroupInformation:doAs:UserGroupInformation.java:1917, org.apache.hive.service.cli.session.HiveSessionProxy:invoke:HiveSessionProxy.java:59, com.sun.proxy.$Proxy22:executeStatement::-1, org.apache.hive.service.cli.CLIService:executeStatement:CLIService.java:257, org.apache.hive.service.cli.thrift.ThriftCLIService:ExecuteStatement:ThriftCLIService.java:501, org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement:getResult:TCLIService.java:1313, org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement:getResult:TCLIService.java:1298, org.apache.thrift.ProcessFunction:process:ProcessFunction.java:39, org.apache.thrift.TBaseProcessor:process:TBaseProcessor.java:39, org.apache.hive.service.auth.TSetIpAddressProcessor:process:TSetIpAddressProcessor.java:56, org.apache.thrift.server.TThreadPoolServer$WorkerProcess:run:TThreadPoolServer.java:286, java.util.concurrent.ThreadPoolExecutor:runWorker:ThreadPoolExecutor.java:1142, java.util.concurrent.ThreadPoolExecutor$Worker:run:ThreadPoolExecutor.java:617, java.lang.Thread:run:Thread.java:745, *org.apache.hadoop.hive.ql.parse.ParseException:line 1:72 cannot recognize input near '?' '<EOF>' '<EOF>' in expression specification:32:5, org.apache.hadoop.hive.ql.parse.ParseDriver:parse:ParseDriver.java:204, org.apache.hadoop.hive.ql.parse.ParseDriver:parse:ParseDriver.java:166, org.apache.hadoop.hive.ql.Driver:compile:Driver.java:522, org.apache.hadoop.hive.ql.Driver:compileInternal:Driver.java:1356, org.apache.hadoop.hive.ql.Driver:compileAndRespond:Driver.java:1343, org.apache.hive.service.cli.operation.SQLOperation:prepare:SQLOperation.java:185], sqlState:42000, errorCode:40000, errorMessage:Error while compiling statement: FAILED: ParseException line 1:72 cannot recognize input near '?' '<EOF>' '<EOF>' in expression specification), Query: select number_impala, string_impala from my_table where number_impala = ?.
... 10 more
问题是要在准备序列中使用的字符以接收绑定。我还遵循了这个示例和？存在。那我做错了什么？
这里的问题是：
UseNativeQuery=1
将此值更改为0使我能够克服我的问题。