ibatis无效的列类型

 

异常信息：
Exception in thread "main" com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in com/mydomain/data/Account.xml.
--- The error occurred while executing query procedure.
--- Check the {call scott.queryaccount(?,?)}.
--- Check the output parameters (register output parameters failed).
--- Cause: java.sql.SQLException: 无效的列类型
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:185)
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForObject(GeneralStatement.java:104)
    at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:566)
    at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:541)
    at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
    at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForObject(SqlMapClientImpl.java:83)
    at com.mydomain.data.SimpleExample.queryCount(SimpleExample.java:52)
    at com.mydomain.data.SimpleExample.main(SimpleExample.java:44)
Caused by: java.sql.SQLException: 无效的列类型
    at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
    at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
    at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
    at oracle.jdbc.driver.OracleStatement.get_internal_type(OracleStatement.java:6164)
    at oracle.jdbc.driver.OracleCallableStatement.registerOutParameterBytes(OracleCallableStatement.java:244)
    at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:393)
    at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:462)
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.registerOutputParameters(SqlExecutor.java:428)
    at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQueryProcedure(SqlExecutor.java:275)
    at com.ibatis.sqlmap.engine.mapping.statement.ProcedureStatement.sqlExecuteQuery(ProcedureStatement.java:34)
    at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
    ... 7 more

查看java.sql.Types类中有关JDBC类型变量类型，并没有发“NUMBER”这一静态字段，而只有“NUMERIC”字段。（因此 jdbcType 的值不是数据库ORACLE的参数类型，而是其对应的JDBC变量类型）

java.sql.Types类中还有一个DECIMAL静态常量，与javaType定义的java.math.BigDecimal类型一致