对于入参为数组：
public List<Employee> getEmpByForeach3(Integer [] ids);
我们使collection="array"
<select id="getEmpByForeach3" resultType="com.gong.mybatis.bean.Employee"> select * from tbl_employee where id in foreach collection="array" item="item" separator="," open="(" close=")" #{item} </foreach> select>
并直接利用#{}接直接获取对应的值。
Integer [] arr = {1,2,3};
List<Employee> es = mapper.getEmpByForeach3(arr);
for(Employee e:es) {
System.out.println(e);
}
输出：
DEBUG 01-21 16:31:10,332 ==> Preparing: select * from tbl_employee where id in ( ?,?,? ) (BaseJdbcLogger.java:145) DEBUG 01-21 16:31:10,371 ==> Parameters: 1(Integer),2(Integer),3(Integer) (BaseJdbcLogger.java:145) DEBUG 01-21 16:31:10,433 == Total: 3 (BaseJdbcLogger.java:145) Employee [id=1,lastName=dema,1)">genderemail=dema@qq.com,1)">dept=null] Employee [id=2,1)">=jack,1)">=675544321@qq.com,1)">=3,1)">=小红,1)">=0,1)">=xiaohong@qq.com,1)">=null]
