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, gender=1, email[email protected], dept=null] Employee [id=2, lastName=jack, gender=1, email[email protected], dept=null] Employee [id=3, lastName=小红, gender=0, email[email protected], dept=null]