Not getting out parameter of mysql Stored Procedure in WSO2 ESB (DBLookup)

问题

I have created a SP in mysql which takes 6 input parameters and give 2 output parameters. I want to call this from DB lookup. I don't know how to do that. I have tried different-2 codes but no luck. please help.

Synapse Code:

<dblookup>
   <connection>
       <pool>
          <driver>com.mysql.jdbc.Driver</driver>
          <property name="autocommit" value="false"/>
          <password>root</password>
           <user>root</user> 
           <url>jdbc:mysql://localhost:3308/emp</url>
        </pool>
    </connection>
    <statement>
      <sql>
        <![CDATA[call MANAGE_MANAGER_DETAIL(?,?,?,?,?,?,@RESULT_CODE, @RESULT_DESC)]]>
      </sql>
      <parameter expression="synapse:get-property('RequestNumber')" type="VARCHAR"/>
      <parameter expression="synapse:get-property('RequestNumber')" type="VARCHAR"/>
      <parameter expression="synapse:get-property('RequestNumber')" type="VARCHAR"/>
      <parameter expression="synapse:get-property('RequestNumber')" type="VARCHAR"/>
      <parameter expression="synapse:get-property('RequestNumber')" type="VARCHAR"/>
      <parameter expression="synapse:get-property('RequestNumber')" type="VARCHAR"/>
    </statement>
    <statement>
      <sql>
           <![CDATA[SELECT @RESULT_CODE, @RESULT_DESC)]]>
       </sql>                   
       <result name="RESULT_CODE" column="RESULT_CODE"/>
       <result name="RESULT_DESC" column="RESULT_DESC"/>
    </statement>
</dblookup>

Logs:

[2015-11-19 13:38:23,668] DEBUG - DBLookupMediator Setting as parameter : 6 value : 1 as JDBC Type : 12(see java.sql.Typepes)
[2015-11-19 13:38:23,669] DEBUG - DBLookupMediator Successfully prepared  
statement :call MANAGE_MANAGER_DETAIL(?,?,?,?,?,?,@RESULT_CODE, @RESULT_DESC)
against DataSource : jdbc:mysql://localhost:3308/emp=[2015-11-19 13:38:23,679]     
ERROR - DBLookupMediator Error executing statement :
call MANAGE_MANAGER_DETAIL(?,?,?,?,?,?,@RESULT_CODE, @RESULT_DESC) against     
DataSource : jdbc:mysql://localhost:3308/emp
java.sql.SQLException: ResultSet is from UPDATE. No Data. at com.mysql.jdbc.ResultSet.next(ResultSet.java:6129)
at org.apache.commons.dbcp.DelegatingResultSet.next(DelegatingResultSet.java:207)
at org.apache.commons.dbcp.DelegatingResultSet.next(DelegatingResultSet.java:207)
at org.apache.commons.dbcp.DelegatingResultSet.next(DelegatingResultSet.java:207

回答1:

I think that DBLookup does not support output parameters in the way you put them.

Try to get output like this

<statement>
     <sql>call getCompany(?)</sql>
     <parameter expression="//m0:getQuote/m0:request/m0:symbol"
                           xmlns:m0="http://services.samples" type="VARCHAR"/>
     <result name="company_id" column="id"/>
</statement>

Look at the link for the full sample.

来源：https://stackoverflow.com/questions/33793428/not-getting-out-parameter-of-mysql-stored-procedure-in-wso2-esb-dblookup

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