java - JDBC 程序调用具有复杂输入和输出的存储过程

Question

您能帮我编写 JDBC 程序来调用下面具有复杂输入类型的存储过程吗？

下面是我的存储过程定义

CREATE OR REPLACE TYPE inputObjects_t AS OBJECT (
    serviceID        VARCHAR2(7),
    offerID          VARCHAR2(7),
    transactionID    NUMBER
)

CREATE OR REPLACE TYPE inputArray_t IS VARRAY(100) OF inputObjects_t

PROCEDURE CheckObjectInput( pCustomerRef IN VARCHAR2,
                                 pSubscriptionPS IN NUMBER,
                                 pExpiryObjects IN inputArray_t,
                                 pTransactionDtm IN DATE,
                                 pTransactionID IN NUMBER);

PROCEDURE CheckObjectOutput( pCustomerRef IN VARCHAR2,
                                 pSubscriptionPS IN NUMBER,
                                 pExpiryObjects OUT inputArray_t,
                                 pTransactionDtm IN DATE,
                                 pTransactionID IN NUMBER);

Answer 1

如果您使用 Oracle，请使用类 OracleCallableStatement。
有一个名为 setSTRUCT 的方法。

一般示例:

OracleConnection conn = (...)
OracleCallableStatement cs = (OracleCallableStatement) conn.prepareCall(sql);
StructDescriptor sd = StructDescriptor.createDescriptor("MY_TYPENAME", conn);
Object[] attribs = new Datum[3];
attribs[0] = new CHAR("value1",  charSet);
attribs[1] = new CHAR("value2",  charSet);
CLOB clob2 = attribs[2] = new CLOB(conn);
STRUCT st = new STRUCT(sd, conn, attribs);
(...)
cs.setSTRUCT(n, st);
(...)
cs.execute()