Mybatis之xml开发-4个案例带你快速入门（答案）

package com.czxy.domain; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import java.util.List; //学生表 @Data @AllArgsConstructor @NoArgsConstructor public class Student { private int sId ; //学生ID private String sname ; //姓名 private int age; //年龄 private String birthday ; //生日 private Character gender ; //性别 private int cId ; //班级ID private Classes classes ; //所属班级 private String provinceId ; //省ID private City province; private String cityId ; //市ID private City city; private String countyId ; //县ID private City county; private List<Course> courseList ; //课程信息 @Override public String toString() { return "Student{" + "sId=" + sId + ", 姓名='" + sname + '\'' + ", 年龄=" + age + ", 生日='" + getBirthday(birthday) + '\'' + ", 性别=" + getGender(gender) + ", 班级名=" + classes.getCname() + ", 省市县所在地='" + getCityName(province,city,county) + '\'' + '}'; } public void display(){ String str = "Student{" + "sId=" + sId + ", 姓名='" + sname + '\'' + ", 年龄=" + age + ", 生日='" + getBirthday(birthday) + '\'' + ", 性别='" + getGender(gender) + '\'' + ", 班级名=" + classes.getCname() + ", 省市县所在地='" + getCityName(province,city,county) + '\'' + '}'; System.out.println(str); System.out.println("课程信息："); if (courseList.size() != 0){ for (Course course : courseList) { System.out.println(course); } }else { System.out.println("该学生还未选择课程！"); } System.out.println("=================="); } public String getGender(Character gender){ return gender == '0' ? "男":"女" ; } public String getCityName(City province,City city,City county){ return province.getCityName()+"-"+city.getCityName()+"-"+county.getCityName(); } public String getBirthday(String birthday){ String[] s = birthday.split(" "); return s[0]; } }