Java JDBC中的Pl/sql%行类型

我一直在尝试使用JDBC执行一个Oracle存储过程，该过程返回%ROWTYPE，如下所述

  OracleCallableStatement ocs = (OracleCallableStatement)conn.prepareCall("begin <PackageName>.procedureName(?,?,?,?); end; ");
  ocs.setString(1, "001");
  ocs.registerOutParameter(2,java.sql.Types.VARCHAR);
  ocs.registerOutParameter(3,java.sql.Types.VARCHAR);
  ***ocs.registerOutParameter(4,java.sql.Types.OTHER);*** /*here What do i need to put, i didn't find Wrapperclass which is compatible for %ROWTYPE*/

 ocs.executeUpdate(); 

 String newerrorcode =  ocs.getString(2);

System.out.println("\n ErrorCode = " + newerrorcode );
String newErrorDesc =  ocs.getString(3);

System.out.println("\n ErrorDesc = " + newErrorDesc );
ResultSet rs = (ResultSet) ocs.getObject(4);

简单的答案是：使用JPublisher创建的类型，并将其映射到JDBC连接类型映射

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答案很长：JDBC规范和Oracle JDBC驱动程序都不允许将自定义（用户定义）类型自动转换为Java对象，反之亦然。必须为此建立类型映射，以便驱动程序能够以适当的方式读取和写入连接。虽然Oracle JDBC驱动程序允许使用

Oracle.SQL.*

类读取和写入某些SQL类型，但它不能应用于UDT，因为UDT的结构无法事先知道。使用JPPublisher解决了这个问题，因为它创建了反映UDT结构的类；一旦Oracle JDBC驱动程序考虑到这些类，它就可以从结果集中读取适当的类型，或者将这些类型的对象写入连接流。

我做了一些与您要求的类似的事情。这里的技巧是声明行类型的refcursor，并将返回声明为游标

Exception in thread "main" java.sql.SQLException: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'PR_APP_DATE'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:439)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:395)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:802)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:436)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:521)
at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:202)
at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:1005)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1307)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3449)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3530)
at oracle.jdbc.driver.OracleCallableStatement.executeUpdate(OracleCallableStatement.java:4735)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350)
at testSysBusinessDts.main(testSysBusinessDts.java:62)