一对多
package practice;
class Privance{
private int pid;
private String pname;
private City [] cities;
public Privance(int pid,String pname){
this.pid = pid;
this.pname = pname;
}
public void setCities(City [] cities){
this.cities = cities;
}
public City [] getCities(){
return this.cities;
}
public String getInfo(){
return "省份编号："+this.pid+" "+"省份名称："+this.pname;
}
}
class City{
private int cid;
private String cname;
private Privance privance;
public City(int cid,String cname){
this.cid = cid;
this.cname = cname;
}
public void setPrivance(Privance privance){
this.privance = privance;
}
public Privance getPrivance(){
return privance;
}
public String getInfo(){
return "城市编号："+this.cid+" "+"城市名称："+this.cname;
}
}
public class province {
public static void main(String args[]){
Privance p = new Privance(1,"hebei");
City c1 = new City(2,"dkkd");
City c2 = new City(3,"kskd");
City c3 = new City(4,"wskd");
c1.setPrivance(p);
c2.setPrivance(p);
c3.setPrivance(p);
p.setCities(new City [] {c1,c2,c3});
System.out.println(p.getInfo());
for(int x=0;x
双向一对多
package practice;
class Item{
private int iid;
private String iname;
private String inote;
private Type types [];
private Pro pros []; //注意pros是对象 切记
public Item(int iid,String iname,String inote){
this.iid = iid;
this.iname = iname;
this.inote = inote;
}
public void setTypes(Type [] types){
this.types = types;
}
public void setPros(Pro [] pros){
this.pros = pros;
}
public Type [] getTypes(){
return types;
}
public Pro [] getPros(){
return pros;
}
public String getInfo(){
return "IID:"+this.iid+" "+"INAME:"+this.iname+" "+"IDEC:"+this.inote;
}
}
class Type{
private int tid;
private String tname;
private String tnote;
private Item item;
private Pro [] pross;
public Type(int tid,String tname,String tnote){
this.tid = tid;
this.tname = tname;
this.tnote = tnote;
}
public void setItem(Item item){
this.item = item;
}
public void setPross(Pro [] pross){
this.pross = pross;
}
public Item getItem(){
return this.item;
}
public Pro [] getPross(){
return this.pross;
}
public String getInfo(){
return "TID:"+this.tid+" "+"TNAME:"+this.tname+"TDEC:"+this.tnote;
}
}
class Pro{
private int pid;
private String pname;
private double price;
private Item item;
private Type type;
public Pro(int pid,String pname,double price){
this.pid = pid;
this.pname = pname;
this.price = price;
}
public void setItem(Item item){
this.item = item;
}
public void setType(Type type){
this.type = type;
}
public Item getItem(){
return this.item;
}
public Type getType(){
return this.type;
}
public String getInfo(){
return "PID:"+this.pid+" "+"PNAME:"+this.pname+"PRICDE:"+this.price;
}
}
public class Two {
public static void main(String [] args){
Item i = new Item(1,"学院","-");
Type t1 = new Type(101,"教学一班","-");
Type t2 = new Type(201,"教学二班","-");
Type t3 = new Type(301,"教学三班","-");
Pro p1 = new Pro(1011,"开始开",85);
Pro p2 = new Pro(1012,"库萨克",96);
Pro p3 = new Pro(2011,"卡卡啊",75);
Pro p4 = new Pro(2012,"卡阿卡",45);
Pro p5 = new Pro(3011,"水口山",25);
Pro p6 = new Pro(3012,"上课考",15);
i.setTypes(new Type [] {t1,t2,t3});
t1.setItem(i);
t2.setItem(i);
t3.setItem(i);
p1.setItem(i);
p2.setItem(i);
p3.setItem(i);
p4.setItem(i);
p5.setItem(i);
p6.setItem(i);
i.setPros(new Pro [] {p1,p2,p3,p4,p5,p6});
t1.setPross(new Pro [] {p1,p2});
t2.setPross(new Pro [] {p3,p4});
t3.setPross(new Pro [] {p5,p6});
p1.setType(t1);
p2.setType(t1);
p3.setType(t2);
p4.setType(t2);
p5.setType(t3);
p6.setType(t3);
System.out.println(i.getInfo());
for(int h=0;h
多对多
package practice;
class Admin{
private int id;
private String password;
private Role role;
public Admin(int id,String password){
this.id = id;
this.password = password;
}
public void setRole(Role role){
this.role = role;
}
public Role getRole(){
return this.role;
}
public String getInfo(){
return "管理员ID："+this.id+" "+"管理员密码："+this.password;
}
}
class Role{
private int rid;
private String rname;
private Admin []admins;
private Group [] groups;
public Role(int rid,String rname){
this.rid = rid;
this.rname = rname;
}
public void setGtoups(Group [] groups){
this.groups = groups;
}
public Group [] getGroups(){
return this.groups;
}
public void setAdmins(Admin [] admins){
this.admins = admins;
}
public Admin [] getAdmins(){
return this.admins;
}
public String getInfo(){
return "角色ID："+this.rid+" "+"角色名称："+this.rname;
}
}
class Group{
private int gid;
private String gname;
private Role [] roles;
private Action [] actions;
public Group(int gid,String gname){
this.gid = gid;
this.gname = gname;
}
public void setActions(Action [] actions){
this.actions = actions;
}
public Action [] getActions(){
return this.actions;
}
public void setRoles(Role [] roles){
this.roles = roles;
}
public Role [] getRoles(){
return this.roles;
}
public String getInfo(){
return "权限组ID："+this.gid+" "+"权限组名称："+this.gname;
}
}
class Action{
private int aid;
private String aname;
private String url;
private Group group;
public Action(int aid,String aname,String url){
this.aid = aid;
this.aname = aname;
this.url = url;
}
public void setGoup(Group group){
this.group = group;
}
public Group getGroup(){
return this.group;
}
public String getInfo(){
return "权限ID："+this.aid+" "+"权限名称："+this.aname+" "+"权限路径："+this.url;
}
}
public class multiple {
public static void main(String []args){
Admin a1 = new Admin(1,"Admin");
Admin a2 = new Admin(2,"Admin");
Admin a3 = new Admin(3,"Admin");
Role r1 = new Role(201,"信息整理员");
Role r2 = new Role(302,"信息发布员");
Role r3 = new Role(4,"信息审核");
Group g1 = new Group(561,"信息管理");
Group g2 = new Group(661,"用户管理");
Group g3 = new Group(161,"数据管理");
Group g4 = new Group(761,"接口管理");
Group g5 = new Group(461,"备份管理");
Action a11 = new Action(25,"新闻发布1","-");
Action a12 = new Action(25,"新闻发布10","-");
Action a13 = new Action(25,"新闻发布14","-");
Action a14 = new Action(25,"新闻发布41","-");
Action a15 = new Action(25,"新闻发布17","-");
Action a16 = new Action(25,"新闻发布15","-");
Action a17 = new Action(25,"新闻发布155","-");
Action a18 = new Action(25,"新闻发布122","-");
Action a19 = new Action(25,"新闻发布12222","-");
Action a20 = new Action(25,"新闻发布12422","-");
Action a21 = new Action(25,"新闻发布1252","-");
Action a22 = new Action(25,"新闻发布1242","-");
Action a23 = new Action(25,"新闻发布122222","-");
//管理员与角色
a1.setRole(r1);
a2.setRole(r2);
a3.setRole(r3);
r1.setAdmins(new Admin[]{a1,a2});
r2.setAdmins(new Admin[]{a1,a3});
r3.setAdmins(new Admin[]{a2,a3});
//角色和权限组
r1.setGtoups(new Group[]{g1,g2});
r2.setGtoups(new Group[]{g3,g4});
r3.setGtoups(new Group[]{g5,g4});
g1.setRoles(new Role[]{r1,r2});
g2.setRoles(new Role[]{r1,r3});
g3.setRoles(new Role[]{r2,r3});
g4.setRoles(new Role[]{r2,r3});
g5.setRoles(new Role[]{r1,r3});
//权限组和权限
a11.setGoup(g1);
a12.setGoup(g3);
a13.setGoup(g3);
a14.setGoup(g1);
a15.setGoup(g2);
a16.setGoup(g4);
a17.setGoup(g3);
a18.setGoup(g5);
a19.setGoup(g2);
a20.setGoup(g5);
a21.setGoup(g3);
a22.setGoup(g4);
a23.setGoup(g1);
g1.setActions(new Action[]{a11,a12,a13});
g2.setActions(new Action[]{a14,a15,a16});
g3.setActions(new Action[]{a17,a18,a19});
g4.setActions(new Action[]{a20,a21,a22});
g5.setActions(new Action[]{a17,a12,a23});
//
System.out.println(a1.getInfo());
System.out.println("\t|--"+a1.getRole().getInfo());
for(int x=0;x
