Spring 集成 - 无法检索 Oracle Array OUT PARAM [英] Spring Integration - Failing to Retrieve Oracle Array OUT PARAM

问题描述

描述:尝试创建返回 oracle 数组类型的网关服务调用.专门获取 sys.dbmsoutput_linesarray.当我注册 OUT 参数或可能在服务中时，我在下面得到的错误似乎是我的配置有问题.想知道是否有人可以告诉我我做错了什么?

Description: Attempting to create a gateway service call that returns a oracle array type. Specially getting the sys.dbmsoutput_linesarray. The error I get below seems that I have something wrong on my configuration when I register the OUT param or possibly in the service. Wondering if someone can tell me what I am doing wrong?

错误信息:CallableStatementCallback;SQL [{call GET_DBMS_OUTPUT(?)}] 的未分类 SQLException；SQL 状态 [99999]；错误代码 [17004];无效的列类型:1111；嵌套异常是 java.sql.SQLException:无效的列类型:1111

Error Message: CallableStatementCallback; uncategorized SQLException for SQL [{call GET_DBMS_OUTPUT(?)}]; SQL state [99999]; error code [17004]; Invalid column type: 1111; nested exception is java.sql.SQLException: Invalid column type: 1111

我在 spring 集成中尝试做的参考代码示例:JAVA DBMS ORACLE 数组可调用语句示例

Referenced Code Example I am trying to do in spring integration: JAVA DBMS ORACLE ARRAY CALLABLE STATEMENT EXAMPLE

Oracle 12c - PL SQL 函数:

Oracle 12c - PL SQL Function:

create or replace function get_dbms_output
    return dbmsoutput_linesarray
as
    l_output dbmsoutput_linesarray;
    l_linecount number;
begin
    dbms_output.enable;
        dbms_output.put_line('This is a line');
        dbms_output.put_line('This is another line');
        dbms_output.put_line('This is the last line.');


    dbms_output.get_lines(l_output, l_linecount);

    if l_output.count > l_linecount then
        -- Remove the final empty line above l_linecount
        l_output.trim;
    end if;

    return l_output;
end get_dbms_output;

Spring Context File - 取自 spring 集成 git hub 示例 stored-procedure-oracle.示例代码增加了以下出站网关.

Spring Context File - Taken from spring integration git hub example stored-procedure-oracle . Sample code was augmented with the following outbound gateway.

<bean id="sqlReturnArray" class="org.springframework.data.jdbc.support.oracle.SqlReturnArray"></bean>

<int-jdbc:stored-proc-outbound-gateway
    id="outbound-gateway-function-dbms" request-channel="procedureDBMSRequestChannel"
    data-source="dataSource" 
    stored-procedure-name="get_dbms_output"
    expect-single-result="true">

    <int-jdbc:sql-parameter-definition name="l_output" type="#{T(oracle.jdbc.OracleTypes).ARRAY}"  type-name="DBMSOUTPUT_LINESARRAY" direction="OUT" return-type="sqlReturnArray" />

</int-jdbc:stored-proc-outbound-gateway>

JAVA - 更新的字符串转换服务

JAVA - Updated String Conversion Service

public interface StringConversionService {

    /**
     * Converts a String to Upper Case.
     *
     * @param stringToConvert The string to convert to upper case
     * @return The converted upper case string.
     */
    String convertToUpperCase(String stringToConvert);

    Integer getNumber();

    @Payload("new java.util.Date()")
    String[] getLines();
}

JAVA - 主要

final StringConversionService service = context.getBean(StringConversionService.class);

        System.out.println("Calling Stored Proc");
        String[] dbmsLines = service.getLines();

更新:弹簧配置:- 为 SqlReturnArray 添加了一个 bean.- 为 SqlReturnArray bean 的引用添加了返回类型- 更改 StringConversionService 以使用 String[] 而不是 oracle Array 返回类型.- 更新主类以获取 String[]

Updated: Spring Config: - Added a bean for SqlReturnArray. - Added a return-type for a reference to SqlReturnArray bean - Change the StringConversionService to use a String[] instead of oracle Array return type. - Updated main class to get String[]

推荐答案

你必须添加 return-type 并以某种方式实现它 SqlReturnArray:

<int-jdbc:sql-parameter-definition name="l_output" type="#{T(oracle.jdbc.OracleTypes).ARRAY}"  type-name="DBMSOUTPUT_LINESARRAY" direction="OUT" return-type="sqlReturnArray" />

其中 sqlReturnArray 是那个 SqlReturnArray 的 bean.

Where sqlReturnArray is a bean of that SqlReturnArray.

当然，已经将结果作为 String[] 处理，而不是不可用的 ARRAY.

And of course, handle the result as a String[] already, not a unavailable there ARRAY.

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