Orm 游戏框架模型关系
我正在研究play框架,尝试使用play java制作api,我做了插入、删除和更新 当我制作带有会话的登录系统时,我对两个模型之间的关系表示怀疑 我在网上搜索了2天,但我不知道如何才能做到这一点 我正在使用ebean,实体模型,并尝试: 我的控制器:Orm 游戏框架模型关系,orm,playframework,entity,entity-relationship,ebean,Orm,Playframework,Entity,Entity Relationship,Ebean,我正在研究play框架,尝试使用play java制作api,我做了插入、删除和更新 当我制作带有会话的登录系统时,我对两个模型之间的关系表示怀疑 我在网上搜索了2天,但我不知道如何才能做到这一点 我正在使用ebean,实体模型,并尝试: 我的控制器: package controllers; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.node.ObjectNode
package controllers;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import models.AdministratorSessions;
import models.Administrators;
import play.libs.Json;
import play.mvc.*;
import java.util.List;
import static play.libs.Json.toJson;
public class Administrator extends Controller {
public static Result login(){
JsonNode json = request().body().asJson();
if(json != null){
String email = json.findPath("email").asText();
String password = json.findPath("password").asText();
AdministratorSessions admSession = Administrators.loginAdm(email, password);
if(admSession != null) {
ObjectNode result = Json.newObject();
result.put("status", "OK");
result.put("dara", Json.toJson(admSession));
return ok(toJson(result));
}else{
return badRequest("Error loggin administrator");
}
}else{
return badRequest("Expecting Json data");
}
}
}
我的管理员模型:
package models;
import javax.persistence.*;
import play.db.ebean.*;
import utils.HashString;
import java.util.*;
/**
* Created by sidnei on 6/12/14.
*/
@Entity
public class Administrators extends Model {
@Id
@Column(name="administrator_id", nullable=false, length=32)
public String id;
@Column(name="administrator_email", nullable=false, length=255)
public String email;
@Column(name="administrator_name", nullable=false, length=255)
public String name;
@Column(name="administrator_password", nullable=false, length=32)
public String password;
@Column(name="administrator_date", nullable=false)
public Date admDate;
@Column(name="administrator_active", nullable=false)
public Boolean active;
@OneToMany(cascade = CascadeType.PERSIST, mappedBy = "administrators")
public List<AdministratorSessions> administrator_sessions;
public static Finder<String, Administrators> find = new Finder(Long.class, Administrators.class);
public Administrators(String _name, String _email, String _password) {
this.name = _name;
this.email = _email;
this.password = HashString.makeHash(_password);
this.admDate = new Date();
this.active = true;
this.id = HashString.makeHash(_name + _email + password + "locationProjectSecret");
}
public static Administrators createAdm(String _name, String _email, String _password){
try {
Administrators adm = new Administrators(_name, _email, _password);
adm.save();
return adm;
}catch (Exception e){
return null;
}
}
public static AdministratorSessions loginAdm(String _email, String _password){
try {
Map<String, Object> params = new HashMap<String, Object>();
params.put("email", _email);
params.put("password", HashString.makeHash(_password));
Administrators adm = Administrators.find.where().allEq(params).findUnique();
if (adm != null){
AdministratorSessions admSession = AdministratorSessions.create(adm.id);
return admSession;
}else{
return null;
}
}catch (Exception e){
return null;
}
}
}
(这是一个例子)
因此,administrator\u id从不使用administrators模型中的管理员id填充
我如何才能做到这一点?使用此api的最佳实践是什么
如果有人有一个例子或解释它是如何工作的,我会非常高兴
谢谢
=============已编辑已解决
嗨
我解决了这个问题,首先,显然,我需要传递对象管理员,而不是管理员的id
然后我遇到了一个json序列化的问题(RuntimeException:java.lang.IllegalArgumentException:Infinite递归)
关于这个主题:我解决了我的问题,所以,我的课程现在是这样的:
session_key | session_date | session_active | administrator_id
-------------+--------------+----------------+-----------------
f1d4c3296d1 | 2014-06-17 | t |
管理员模型:
package models;
import javax.persistence.*;
import com.fasterxml.jackson.annotation.JsonManagedReference;
import play.Logger;
import play.db.ebean.*;
import utils.HashString;
import java.util.*;
/**
* Created by sidnei on 6/12/14.
*/
@Entity
public class Administrators extends Model {
@Id
@Column(name="administrator_id", nullable=false, length=32)
public String id;
@Column(name="administrator_email", nullable=false, length=255)
public String email;
@Column(name="administrator_name", nullable=false, length=255)
public String name;
@Column(name="administrator_password", nullable=false, length=32)
public String password;
@Column(name="administrator_date", nullable=false)
public Date admDate;
@Column(name="administrator_active", nullable=false)
public Boolean active;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "administrators")
@Column(nullable = true)
@JsonManagedReference
public Set<AdministratorSessions> administrator_sessions;
public static Finder<String, Administrators> find = new Finder(Long.class, Administrators.class);
public static AdministratorSessions loginAdm(String _email, String _password){
try {
Map<String, Object> params = new HashMap<String, Object>();
params.put("email", _email);
params.put("password", HashString.makeHash(_password));
Administrators adm = Administrators.find.where().allEq(params).findUnique();
if (adm != null){
AdministratorSessions admSession = AdministratorSessions.create(adm);
return admSession;
}else{
return null;
}
}catch (Exception e){
return null;
}
}
}
封装模型;
导入javax.persistence.*;
导入com.fasterxml.jackson.annotation.JsonManagedReference;
导入play.Logger;
导入play.db.ebean.*;
导入utils.HashString;
导入java.util.*;
/**
*由sidnei于2014年6月12日创建。
*/
@实体
公共类管理员扩展模型{
@身份证
@列(name=“administrator\u id”,null=false,长度=32)
公共字符串id;
@列(name=“administrator\u email”,null=false,长度=255)
公共字符串电子邮件;
@列(name=“administrator\u name”,null=false,长度=255)
公共字符串名称;
@列(name=“administrator\u password”,null=false,长度=32)
公共字符串密码;
@列(name=“administrator\u date”,null=false)
公开日期;
@列(name=“administrator\u active”,null=false)
公共布尔活动;
@OneToMany(cascade=CascadeType.ALL,mappedBy=“administrators”)
@列(nullable=true)
@JsonManagedReference
公共设置管理员会话;
publicstaticfinder=newfinder(Long.class,Administrators.class);
公共静态管理员会话登录(字符串_电子邮件,字符串_密码){
试一试{
Map params=新的HashMap();
参数put(电子邮件);
params.put(“password”,HashString.makeHash(_password));
Administrators adm=Administrators.find.where().allEq(params.findUnique();
如果(adm!=null){
AdministratorSessions admSession=AdministratorSessions.create(adm);
返回会话;
}否则{
返回null;
}
}捕获(例外e){
返回null;
}
}
}
管理员会话模型:
package models;
import play.Logger;
import play.db.ebean.Model;
import utils.HashString;
import javax.persistence.*;
import java.util.Date;
/**
* Created by sidnei on 6/12/14.
*/
@Entity
public class AdministratorSessions extends Model {
@Id
@Column(name="administrator_session_key", nullable=false, length=32)
public String id;
@Column(name="administrator_session_date", nullable=false)
public Date sessionDate;
@Column(name="administrator_session_active", nullable=false)
public Boolean active;
@ManyToOne
@JoinColumn(name = "administrator_id")
public Administrators administrators;
public static Finder<String, AdministratorSessions> find = new Finder(Long.class, AdministratorSessions.class);
public AdministratorSessions(String _adminId) {
// this.administrator_id = _adminId;
this.sessionDate = new Date();
this.id = HashString.makeHash(_adminId + this.sessionDate.toString() + "locationProjectSecretForSession" + Math.random());
this.active = true;
}
public static AdministratorSessions create(String _adminId){
try{
AdministratorSessions admSessions = new AdministratorSessions(_adminId);
admSessions.save();
return admSessions;
}catch (Exception e){
Logger.info("aqui");
Logger.debug(e.getMessage());
return null;
}
}
}
package models;
import com.fasterxml.jackson.annotation.JsonBackReference;
import play.Logger;
import play.db.ebean.Model;
import utils.HashString;
import javax.persistence.*;
import java.util.Date;
/**
* Created by sidnei on 6/12/14.
*/
@Entity
public class AdministratorSessions extends Model {
@Id
@Column(name="administrator_session_key", nullable=false, length=32)
public String key;
@Column(name="administrator_session_date", nullable=false)
public Date sessionDate;
@Column(name="administrator_session_active", nullable=false)
public Boolean active;
@ManyToOne
@JoinColumn(name = "administrator_id")
@JsonBackReference
public Administrators administrators;
public static Finder<String, AdministratorSessions> find = new Finder(Long.class, AdministratorSessions.class);
public AdministratorSessions(Administrators _adm) {
this.administrators = _adm;
this.sessionDate = new Date();
this.key = HashString.makeHash(_adm.id + this.sessionDate.toString() + "locationProjectSecretForSession" + Math.random());
this.active = true;
}
public static AdministratorSessions create(Administrators _adm){
try{
AdministratorSessions admSessions = new AdministratorSessions(_adm);
admSessions.save();
return admSessions;
}catch (Exception e){
Logger.info("aqui");
Logger.debug(e.getMessage());
return null;
}
}
}
封装模型;
导入com.fasterxml.jackson.annotation.JsonBackReference;
导入play.Logger;
导入play.db.ebean.Model;
导入utils.HashString;
导入javax.persistence.*;
导入java.util.Date;
/**
*由sidnei于2014年6月12日创建。
*/
@实体
公共类管理员会话扩展模型{
@身份证
@列(name=“administrator\u session\u key”,null=false,长度=32)
公共字符串密钥;
@列(name=“administrator\u session\u date”,null=false)
公众日期会期;
@列(name=“administrator\u session\u active”,null=false)
公共布尔活动;
@许多酮
@JoinColumn(name=“administrator\u id”)
@JsonBackReference
公共行政人员;
publicstaticfinder=newfinder(Long.class,AdministratorSessions.class);
公共行政部门(行政部门){
this.administrators=\u adm;
this.sessionDate=新日期();
this.key=HashString.makeHash(_adm.id+this.sessionDate.toString()+“locationProjectSecretForSession”+Math.random());
this.active=true;
}
公共静态管理员会话创建(管理员_adm){
试一试{
管理员会话admSessions=新管理员会话(_adm);
admSessions.save();
返回会话;
}捕获(例外e){
Logger.info(“aqui”);
debug(例如getMessage());
返回null;
}
}
}
现在很好用,谢谢