调用从Java返回Oracle类型的PL / SQL函数

我有一个PL / SQL函数,如下所示返回Oracle类型(PROCESSEXCLEFILEARGS)

FUNCTION PROCESS_FILE_INTERNAL
    (
      i_Filename VARCHAR2,
      i_EventType NUMBER
    ) 
    RETURN PROCESSEXCELFILEARGS

我必须从Java调用此函数,我的Java方法如下所示

OracleCallableStatement cstmt = null;
    try{  
        OracleDriver ora = new OracleDriver();
        DriverManager.registerDriver(ora);

        Connection connection = ora.defaultConnection();
        String call = "{ ? = call NEUTRINO_META.PKG_EXCEL.PROCESS_FILE_INTERNAL(?, ?) }";
                      cstmt = (OracleCallableStatement)connection.prepareCall(call);
                      cstmt.setQueryTimeout(1800);
                      cstmt.registerOutParameter(1, OracleTypes.OTHER, "NEUTRINO_META.PROCESSEXCELFILEARGS");
                      cstmt.setString(2, filename);
                      cstmt.setDouble(3, eventType);                          
                      cstmt.execute();

                      OracleObjects.ProcessExcelFileArgsobj = (OracleObjects.ProcessExcelFileArgs)cstmt.getObject(1);
                      connection.commit();


                }
    catch (SQLException e){
        WriteEventToDb(e.getMessage());
    }
    finally{
        if (cstmt != null){
            cstmt.close();
        }
    }

OracleObject.ProcessExcelFileArgs正在实现SQLData,并且正确实现了readSQl(..)和writeSQL(..)方法来读取和写入类型字段.

但是当我运行这个java方法时,我得到一个带有’无效列类型:1111’消息的SQLException

任何人都可以让我知道我采取的方法是否有任何错误,或者是否有任何其他方法来检索返回oracle类型作为java对象.

编辑:

create or replace 
TYPE PROCESSEXCELFILEARGS FORCE AS OBJECT 
( 
  FullFilePath VARCHAR2(700),
  Filename VARCHAR2(200),
  Graph TYPEGRAPHDATA
)

请注意,TYPEGRAPHDATA是架构级别的另一个用户定义的Oracle类型

谢谢

最佳答案
你的情况下使用oracle.sql.STRUCT类.最简单的例子:

在Oracle中:

create type type_dummy is object (
id int,
name varchar2(10)
)
/

create or replace function get_type_dummy
return type_dummy
is
begin
  return type_dummy(1,'ABCDe');
end;
/

在Java中:

class TypeDummy {
   public Long id;
   public String name;
}



    try {
        DriverManager.registerDriver ( new oracle.jdbc.driver.OracleDriver());
        Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@ods.fors.ru:1521:test","odh","odh");
        OracleCallableStatement cstmt = (OracleCallableStatement)conn.prepareCall("{ ? = call get_type_dummy }"); ;
        cstmt.registerOutParameter(1, OracleTypes.JAVA_STRUCT, "TYPE_DUMMY");
        cstmt.execute();
        oracle.sql.STRUCT td = (oracle.sql.STRUCT)cstmt.getObject(1);
        Object[] x = td.getAttributes();
        TypeDummy ntd = new TypeDummy();
        ntd.id = ((BigDecimal)x[0]).longValue();
        ntd.name = (String)x[1];
        System.out.println(ntd.id);
        System.out.println(ntd.name);                        
        cstmt.close();        
    }
...

输出:

1
ABCDe

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