十年网站开发经验 + 多家企业客户 + 靠谱的建站团队
量身定制 + 运营维护+专业推广+无忧售后,网站问题一站解决
当写表和实体类之间映射的时候,一旦出现外键,要通过外键找到另外一个类,一旦出现外键必须写成类型
private Address address;
person表
创新互联是一家专注于网站设计制作、成都网站建设与策划设计,鄂伦春网站建设哪家好?创新互联做网站,专注于网站建设10多年,网设计领域的专业建站公司;建站业务涵盖:鄂伦春等地区。鄂伦春做网站价格咨询:18982081108
public class Person {
private String pid;
private String pname;
private int age;
private Address address;
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public String getPid() {
return pid;
}
public void setPid(String pid) {
this.pid = pid;
}
public String getPname() {
return pname;
}
public void setPname(String pname) {
this.pname = pname;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
//覆盖原来的toString方法
@Override
public String toString() {
return "Person [pid=" + pid + ",pname=" + pname + ",age=" + age +"]";
}
}
public class Address {
private String aid; //主键
private String province; //省
private String city; //市
private String district; //区
private String street; //街道
public String getAid() {
return aid;
}
public void setAid(String aid) {
this.aid = aid;
}
public String getProvince() {
return province;
}
public void setProvince(String province) {
this.province = province;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getDistrict() {
return district;
}
public void setDistrict(String district) {
this.district = district;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
}