第一种解决：根据Map查询
测试：
@Test
public void test08(){
Student stu = new Student("田七",27,95);
Map<String, Object> map = new HashMap<>();
map.put("nameCon", "张");
map.put("ageCon",18);
map.put("stu", stu);
List<Student> students = dao.selectStudentsByCondition(map);
for (Student student : students) {
System.out.println(student);
}
}
dao:
mapper:
第二种方法：使用索引号
测试：
mapper：
dao:
