应用场景设置
以学生的信息管理系统为例，演示学生信息的增删改查。这里定义学生的Bean类为：
Student.java
public class Student {
private String studentId;
private String name;
private int weight;
private int height;
private Date birthday;
public String getStudentId() {
return studentId;
}
public void setStudentId(String studentId) {
this.studentId = studentId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getWeight() {
return weight;
}
public void setWeight(int weight) {
this.weight = weight;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
@Override
public String toString() {
return "Student [studentId=" + studentId + ", name=" + name
+ ", weight=" + weight + ", height=" + height + ", birthday="
+ birthday + "]";
}
public Student(String studentId, String name, int weight, int height,
Date birthday) {
super();
this.studentId = studentId;
this.name = name;
this.weight = weight;
this.height = height;
this.birthday = birthday;
}
public Student() {
}
}
并且定义了学生的增删改查接口如下：
IStudentDao.java
public interface IStudentDao {
void insert(Student s);
void update(Student s);
void delete(String studentId);
}
操纵MongoDB的接口实现文件如下，
IStudentDaoImpl.java
public class IStudentDaoImpl implements IStudentDao{
@Override
public void insert(Student s) {
//暂未实现
}
@Override
public void update(Student s) {
//暂未实现
}
@Override
public void delete(String studentId) {
//暂未实现
}
}
另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。
