Question

我试图设置一个使用函数的轮询器，该函数返回一个varchar，指示是否有时间启动作业。我有一个输出参数，我已设置但似乎不正确，因为我收到以下错误：

2015-10-01 16:30:44,413 ERROR [task-scheduler-3] org.springframework.integration.handler.LoggingHandler - org.springframework.jdbc.UncategorizedSQLException: CallableStatementCallback; uncategorized SQLException for SQL [{? = call FN_MY_FUNCTION()}]; SQL state [99999]; error code [17041]; Missing IN or OUT parameter at index:: 1; nested exception is java.sql.SQLException: Missing IN or OUT parameter at index:: 1

我不确定为什么我会收到此错误。这是我的适配器定义：

  <!-- JDBC polling channel adapter -->
  <int-jdbc:stored-proc-inbound-channel-adapter 
    auto-startup="false" 
    id="jobControlPollingChannelAdapter"
    data-source="dataSource"
    channel="outputChannel"
    expect-single-result="true"
    is-function="true"
    stored-procedure-name="${outbound.feed.db.polling.sp}"
  >

    <int:poller default="false" id="jdbcPoller" fixed-delay="5000" time-unit="MILLISECONDS"/>
    <int-jdbc:sql-parameter-definition name="completionStatus" direction="OUT" type="VARCHAR"/>
    <int-jdbc:returning-resultset name="outboundRunCheckResult" row-mapper="outboundRunCheckMapper" />
  </int-jdbc:stored-proc-inbound-channel-adapter>

函数调用非常简单：

? = call FN_MY_FUNCTION()

思考？提前谢谢！

Answer 1

? = call FN_MY_FUNCTION()

在这种情况下，

无效语法，请尝试：

SELECT FN_MY_FUNCTION（）FROM DUAL

并从结果集中获取结果。

Answer 2

从我这边我可以和你分享这样的事情：

<int-jdbc:stored-proc-inbound-channel-adapter id="inbound-adapter" channel="outputChannel" data-source="dataSource"
    ignore-column-meta-data="true"
    expect-single-result="true"
    stored-procedure-name="GET_RANDOM_NUMBER"
     is-function="true">
    <int-jdbc:returning-resultset name="out" row-mapper="org.springframework.jdbc.core.SingleColumnRowMapper"/>
</int-jdbc:stored-proc-inbound-channel-adapter>

程序如下：

17:43:06,036 DEBUG task-scheduler-1 simple.SimpleJdbcCall:313 - Compiled stored procedure. Call string is [{? = call GET_RANDOM_NUMBER()}]
17:43:06,037 DEBUG task-scheduler-1 simple.SimpleJdbcCall:289 - SqlCall for function [GET_RANDOM_NUMBER] compiled
17:43:06,039 DEBUG task-scheduler-1 metadata.CallMetaDataContext:500 - Matching [] with []
17:43:06,039 DEBUG task-scheduler-1 metadata.CallMetaDataContext:501 - Found match for []
17:43:06,041 DEBUG task-scheduler-1 simple.SimpleJdbcCall:395 - The following parameters are used for call {? = call GET_RANDOM_NUMBER()} with {}
17:43:06,041 DEBUG task-scheduler-1 simple.SimpleJdbcCall:398 - 1: out, SQL type 0, type name null, parameter class [org.springframework.jdbc.core.SqlReturnResultSet]
17:43:06,042 DEBUG task-scheduler-1 core.JdbcTemplate:1062 - Calling stored procedure [{? = call GET_RANDOM_NUMBER()}]

如果我加上这个：

<int-jdbc:sql-parameter-definition name="out" direction="OUT" type="DECIMAL"/>

我看到了相同的程序编译结果，但现在调用了Exception：

17:44:09,141 ERROR task-scheduler-1 handler.LoggingHandler:145 - org.springframework.dao.DataIntegrityViolationException: CallableStatementCallback; SQL [{? = call GET_RANDOM_NUMBER()}]; ??? ??????
No data is available [2000-180]; nested exception is org.h2.jdbc.JdbcSQLException: ??? ??????
No data is available [2000-180]
    at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:102)

是的，这是不同的问题，但您应该从这里看到您的sql-parameter-definition有罪。

换句话说，returning-resultset无论如何都指定了过程调用的参数。请参阅org.springframework.jdbc.core.SqlReturnResultSet SqlParameter扩展程序。

让我知道它是否像其他方式一样。

Spring Integration - 存储过程 - 入站 - 通道 - 适配器，只有out参数函数抛出＆＃34;缺少IN或OUT参数＆＃34;

2 个答案: