java面向对象高级分层实例_测试类（main方法所在的类）

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package bdqn.studentSys;/** * main类 * @author Administrator * */import java.util.*;import bdqn.studentSys.Dao.StudentDao;import bdqn.studentSys.Dao.impl.StudentDaoImpl;import bdqn.studentSys.entity.Student;public class StudentSys {public static void main(String []args){Scanner in=new Scanner(System.in);//查询全部学生getAllStudent();//添加System.out.println("==============添加学生信息==============");System.out.println("请输入学生姓名：");String name=in.next();System.out.println("请输入学生密码：");String pwd=in.next();System.out.println("请输入学生年龄：");int age=in.nextInt();System.out.println("请输入学生性别：");String sex=in.next();Student stu=new Student();stu.setName(name);stu.setPwd(pwd);stu.setAge(age);stu.setSex(sex);addStudent(stu);//修改System.out.println("==============修改学生信息==============");System.out.println("请输入要修改的学生学号：");int no=in.nextInt();System.out.println("请输入学生姓名：");String name1=in.next();System.out.println("请输入学生密码：");String pwd1=in.next();System.out.println("请输入学生年龄：");int age1=in.nextInt();System.out.println("请输入学生性别：");String sex1=in.next();Student stu1=new Student();stu.setName(name1);stu.setPwd(pwd1);stu.setAge(age1);stu.setSex(sex1);updateStudent(stu1);//删除System.out.println("==============删除学生信息==============");System.out.println("请输入要删除的学生学号：");int no1=in.nextInt();delStudent(no1);}static StudentDao sdao=new StudentDaoImpl();//查询全部学生static void getAllStudent(){List<Student> slist=sdao.getAllStudent();System.out.println("姓名\t\t密码\t\t年龄\t\t性别");for (Student stu : slist) {System.out.print(stu.getName()+"\t\t");System.out.print(stu.getPwd()+"\t\t");System.out.print(stu.getAge()+"\t\t");System.out.println(stu.getSex()+"\t\t");}}//添加学生信息static void addStudent(Student stu){int rel=sdao.addStudent(stu);try {if(rel>0){System.out.println("添加成功！");}else{System.out.println("添加失败！");}} catch (Exception e) {System.out.println("操作异常！"+e);}}//修改学生信息static void updateStudent(Student stu){int rel=sdao.UpdateStudent(stu);try {if(rel>0){System.out.println("修改成功！");}else{System.out.println("添加失败！");}} catch (Exception e) {// TODO: handle exceptionSystem.out.println("操作异常"+e);}}//删除学生信息static void delStudent(int stuno){int rel=sdao.delStudent(stuno);try {if(rel>0){System.out.println("删除成功！");}else{System.out.println("删除失败");}} catch (Exception e) {// TODO: handle exceptionSystem.out.println("操作异常"+e);}}}
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