时间:2021-07-01 10:21:17 帮助过:3人阅读
#{classList} [item是一个别名而已]
</foreach>
</select>
2、criteria的用法:【写法二】
  <isNotEmpty property="criteria">
			   <iterate property="criteria" conjunction="and" prepend="and"
				 open="(" close=")">
				    $criteria[].paramName$ $criteria[].arithmeticType$ #criteria[].paramValue#
			 </iterate>
JAVA测试方法编写:(接口声明)
public List<Student> getStudentListByClassId(List<String> classList);
测试代码,查询学生中在10000,10001这两个班级的学生:(具体实现方法)
List<String> classList = new ArrayList<String>();
classList.add("10000");
classList.add("10001");
List<Student> studentList = studentMapper.getStudentListByClassId(classList);
for(Student stu:studentList){
System.out.println(studentList.toString());
}
sqlMap.xml配置文件中迭代一个集合的方式
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