java调用oracle存储过程的自定义类型(可变数组)。2010-05-14 10:06

在使用存储过程中，我们有时需要传递可变数组，存在两种情况，存储过程有输入或输出参数为自定义可变数组的。在java代码中，如何正确调用oracle存储过程的自定义可变数组类型，在这里做一下示例说明.

java调用oracle存储过程的自定义类型:

plsql定义字符串和数值型可变数组：

一。定义全局类型：

CREATE OR REPLACE TYPE USERSEQID_ARRAY IS VARRAY(50000) OF NUMBER(9)

CREATE OR REPLACE TYPE USERNAME_ARRAY AS VARRAY(32) of varchar(32)

CREATE OR REPLACE TYPE USERPWD_ARRAY AS VARRAY(50000) of varchar(60)

二。java调用输出参数为自定义数组的存储过程：

2.1 输出参数为自定义数组的存储过程make_logincard_pro：

procedure make_logincard_pro (
p_cardsuitcode in varchar,
p_userseqidArr out USERSEQID_ARRAY ,
p_usernameArr out USERNAME_ARRAY 
)
IS
v_addedtime date:= sysdate;

BEGIN

    FOR ii IN 1 .. 10 LOOP

        IF p_userseqidArr IS NULL THEN
          p_userseqidArr := USERSEQID_ARRAY(ii);
        ELSE
           p_userseqidArr.EXTEND;   --超过数组定义大小(50000)将抛出异常 
           p_userseqidArr(ii) := ii;                
        END IF;

        IF p_usernameArr IS NULL THEN
          p_usernameArr := USERSEQID_ARRAY(ii || 'TT');
        ELSE
           p_usernameArr.EXTEND;      --超过数组定义大小(32)将抛出异常
           p_usernameArr(ii) := ii || 'TT';                
        END IF;

    END LOOP

END make_logincard_pro ; 2.2JAVA调用存储过程make_logincard_pro：

//代码片段
Connection con = session.connection();
java.sql.CallableStatement cst = con
        prepareCall("call CNBT.test_pro(?,?,?)");
cst.setString(1, cardSuitCode);
cst.registerOutParameter(2, OracleTypes.ARRAY,"USERSEQID_ARRAY");
cst.registerOutParameter(3, OracleTypes.ARRAY,"USERNAME_ARRAY");

java.sql.Array userSeqIdArr = cst.getArray(2);
java.sql.Array userNameArr = cst.getArray(3);

if ( userSeqIdArr != null ) ...{
    BigDecimal userSeqIdList[] = (BigDecimal[])userSeqIdArr.getArray();//数据库的number映射为BigDecimal 
    //。。。。。。
}
if ( userNameArr != null ) ...{
    String userNameList[] = (String[])userNameArr.getArray(); 
    //。。。。。。
}

--------------------------------------------------------------------------------

三. java调用输入参数为自定义数组的存储过程：

3.1 输入参数为自定义数组的存储过程update_logincard_pwd：

/**//**********************************************
   *          update_logincard_pwd               *
   *功能描述：更新密码存储过程         *
   *输入参数：                                         *
   *输出参数：                                         *
   *作者：hanjiong                                    *
   ***********************************************/   
procedure update_logincard_pwd (
     p_userSeqIdList in USERSEQID_ARRAY,
     p_userPwdList in USERPWD_ARRAY,
     p_resultcode out number
   );3.2 java调用存储过程update_logincard_pwd：

//代码片段
..........................
Connection con = session.connection();//使用的weblogic数据源
oracle.jdbc.OracleCallableStatement cst2 = (oracle.jdbc.OracleCallableStatement)con
                                    .prepareCall(
                                    "call CNBT.update_logincard_pwd(?,?,?)");
                            weblogic.jdbc.wrapper.Connection weblogicConn = (weblogic.jdbc.wrapper.Connection)con;
                            oracle.jdbc.OracleConnection oracleConn = (oracle.jdbc.OracleConnection)weblogicConn.getVendorConnection();//转化connection
                            oracle.sql.ArrayDescriptor des_USERSEQID_ARRAY =
                                    oracle.sql.ArrayDescriptor.createDescriptor("USERSEQID_ARRAY",oracleConn);
                            oracle.sql.ArrayDescriptor des_USERPWD_ARRAY =
                                    oracle.sql.ArrayDescriptor.createDescriptor("USERPWD_ARRAY",oracleConn);
                            oracle.sql.ARRAY ora_array1 = new oracle.sql.ARRAY(des_USERSEQID_ARRAY, oracleConn, userAccSeqIdArr);
                            oracle.sql.ARRAY ora_array2 = new oracle.sql.ARRAY(des_USERPWD_ARRAY, oracleConn, userPwdList);
                            cst2.setArray(1, ora_array1);
                            cst2.setArray(2, ora_array2);
                            cst2.registerOutParameter(3, java.sql.Types.INTEGER);
                            cst2.execute();
                            updateCode = cst2.getInt(3);