When you need to write IBatis involving IN Keyword for MYSQL

iBatis: Support for Array or List Parameter with SQL IN Keyword

This is a feature available in iBatis but it is not mentioned in the documentation. You can find the example in the iBatis source code under the unit tests.

Let's said I need to run the following SQL statement

select * from my_table where col_1 in ('1','2','3') 

So how do I pass in the values of 1, 2 and 3 ?

In this case you need to pass in a list parameter. The correct iBatis syntax should be

<select id="select-test" resultMap="MyTableResult"   parameterClass="list">  select * from my_table where col_1 in   <iterate open="(" close=")" conjunction=",">    #[]#   </iterate>  </select> 

And in Java you should pass in a java.util.List. E.g.

List<String> list = new ArrayList<String>(3); list.add("1"); list.add("2"); list.add("3"); List objs = sqlMapClient.queryForList("select-test",list); 

This is another example

<select id="getProducts" parameterClass="Product"         resultClass="Product">   SELECT * FROM Products   <dynamic prepend="WHERE productType IN ">     <iterate property="productTypes"              open="(" close=")"              conjunction=",">       productType=#productType#     </iterate>   </dynamic> </select> …

*P.S. Refer to the link http://twit88.com/blog/2008/03/14/ibatis-support-for-arrays-or-list-parameters-in-with-sql-in-keyword/