将整数列表从Java传递到Oracle函数

我知道这可能是重复的问题，我检查了一些相关的解决方案 无法继续前进

在从Java传递整数列表并在Oracle函数中使用它方面，我没有什么问题

操作员列表以以下格式从Java传递给oracle函数：“1111122222”。11111和22222是数字，但以单引号传递，因此它作为一个变量传递。有没有更好的方法传递这个变量

Java代码片段：

List<Integer> operatorList = new ArrayList<>();

create or replace TYPE OPERATOR_ARRAY_DEL AS TABLE OF INTEGER;
/

create or replace FUNCTION FUNC_GetMessages (
    OperatorList IN VARCHAR2
)   

RETURN T_MSGTABLE AS
vMsg_List       T_MSGTABLE;
v_Operator_List VARCHAR(50);
v_operatorList    VARCHAR(100) :='';
v_operatorFinalList    VARCHAR(100) ;
v_operatorId     VARCHAR(20);
v_operatorFinal OPERATOR_ARRAY_DEL := OPERATOR_ARRAY_DEL();
BEGIN

FOR iOperator IN 
        (SELECT to_number(column_value) as v_operatorId FROM xmltable(OperatorList)) 
        LOOP
        v_operatorList := v_operatorList  ||  iOperator.v_operatorId || ',';

        SELECT SUBSTR(v_operatorList, 1, LENGTH(v_operatorList) - 1) INTO v_operatorFinalList FROM DUAL; 

  END LOOP;   

... some code here
...
....

  SELECT SUBSTR(v_operatorList, 1, LENGTH(v_operatorList) - 1) INTO v_operatorList FROM DUAL;   

    SELECT T_MSGTABLE( message) 
    BULK COLLECT INTO vSMs_List
    FROM 
    (  
        SELECT MESSAGE FROM MESSAGETABLE WHERE OPERATOR IN (v_operatorFinalList);
    );
END;    

在甲骨文中，正如我所期待的那样

从表中选择消息（FUNC_GetMessages（'1111122222'）

因此，我可以删除引号并将值作为参数直接传递给表

创建类型以处理此参数

甲骨文：

List<Integer> operatorList = new ArrayList<>();

create or replace TYPE OPERATOR_ARRAY_DEL AS TABLE OF INTEGER;
/

create or replace FUNCTION FUNC_GetMessages (
    OperatorList IN VARCHAR2
)   

RETURN T_MSGTABLE AS
vMsg_List       T_MSGTABLE;
v_Operator_List VARCHAR(50);
v_operatorList    VARCHAR(100) :='';
v_operatorFinalList    VARCHAR(100) ;
v_operatorId     VARCHAR(20);
v_operatorFinal OPERATOR_ARRAY_DEL := OPERATOR_ARRAY_DEL();
BEGIN

FOR iOperator IN 
        (SELECT to_number(column_value) as v_operatorId FROM xmltable(OperatorList)) 
        LOOP
        v_operatorList := v_operatorList  ||  iOperator.v_operatorId || ',';

        SELECT SUBSTR(v_operatorList, 1, LENGTH(v_operatorList) - 1) INTO v_operatorFinalList FROM DUAL; 

  END LOOP;   

... some code here
...
....

  SELECT SUBSTR(v_operatorList, 1, LENGTH(v_operatorList) - 1) INTO v_operatorList FROM DUAL;   

    SELECT T_MSGTABLE( message) 
    BULK COLLECT INTO vSMs_List
    FROM 
    (  
        SELECT MESSAGE FROM MESSAGETABLE WHERE OPERATOR IN (v_operatorFinalList);
    );
END;    

函数执行：

List<Integer> operatorList = new ArrayList<>();

create or replace TYPE OPERATOR_ARRAY_DEL AS TABLE OF INTEGER;
/

create or replace FUNCTION FUNC_GetMessages (
    OperatorList IN VARCHAR2
)   

RETURN T_MSGTABLE AS
vMsg_List       T_MSGTABLE;
v_Operator_List VARCHAR(50);
v_operatorList    VARCHAR(100) :='';
v_operatorFinalList    VARCHAR(100) ;
v_operatorId     VARCHAR(20);
v_operatorFinal OPERATOR_ARRAY_DEL := OPERATOR_ARRAY_DEL();
BEGIN

FOR iOperator IN 
        (SELECT to_number(column_value) as v_operatorId FROM xmltable(OperatorList)) 
        LOOP
        v_operatorList := v_operatorList  ||  iOperator.v_operatorId || ',';

        SELECT SUBSTR(v_operatorList, 1, LENGTH(v_operatorList) - 1) INTO v_operatorFinalList FROM DUAL; 

  END LOOP;   

... some code here
...
....

  SELECT SUBSTR(v_operatorList, 1, LENGTH(v_operatorList) - 1) INTO v_operatorList FROM DUAL;   

    SELECT T_MSGTABLE( message) 
    BULK COLLECT INTO vSMs_List
    FROM 
    (  
        SELECT MESSAGE FROM MESSAGETABLE WHERE OPERATOR IN (v_operatorFinalList);
    );
END;    

从表中选择消息（FUNC_GetMessages（'1111122222'）
-->此处错误：无效数字

ORA-01722: invalid number
ORA-06512: at "FUNC_GetMessages", line 29
01722. 00000 -  "invalid number"
*Cause:    The specified number was invalid.
*Action:   Specify a valid number.

我不知道如何解释运算符列表并传递给表以获取结果

预期结果是select语句中的多行

非常感谢您的指点和建议。
谢谢：）
可能有一种更简单的Java方法可以做到这一点，但您也在函数中过度复杂化了。该
xmltable
查询正在将列表转换为一个可以迭代的表，无需再次将其放回varchar2

create or replace FUNCTION FUNC_GetMessages (
    OperatorList IN VARCHAR2
)   
RETURN T_MSGTABLE AS
  vMsg_List       T_MSGTABLE;
BEGIN 

... some code here
...
....

    SELECT T_MSGTABLE( message) 
    BULK COLLECT INTO vMsg_List
    FROM 
    (  
        SELECT MESSAGE FROM MESSAGETABLE WHERE OPERATOR IN 
          (SELECT to_number(column_value) as opId FROM xmltable(OperatorList));
    );
END;  

如果这是针对Hibernate的，您可能会想给它加上这样的标签，就像我差点问您为什么不使用
CallableStatement
，直到我意识到这不是JDBC。老实说，我在Hibernate中找不到任何简单的方法来实现这一点。如果这是JDBC，我会告诉您使用
连接
对象的
createArrayOf
命令创建
java.sql.Array
。。。类似于java.sql.Array operatorArray=conn.createArrayOf（“INTEGER”，operatorList.toArray（））然后可以传递到
PrepareStatement
的
setArray
。也就是说，假设您实际将存储函数编码为接受SQL数组。@Powerlord，感谢您提醒我们在Hibernate下标记它。添加了其他标记，但忘记了此项。：）我尝试将输入作为字符串传递，然后解析它。我也尝试过作为类型传递。这正如预期的那样工作，您是对的，我在DB函数中复杂化了数据获取。