src/com/bean/User.java

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package com.bean;

import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;

/**
 * 用户实体数据模型
 * @author LuoJoy
 *
 */
@Entity
@Table(name="t_user")
public class User implements Serializable{

	private static final long serialVersionUID = 8109717520751871482L;

	@Id
	@GeneratedValue(strategy=GenerationType.IDENTITY)//IDENTITY：主键由数据库自动生成（主要是自动增长型） 
	@Column(name="uid")
	private Integer uid;
	
	@Column(name="username")
	private String username;
	
	@Column(name="password")
	private String password;
	
	@Column(name="state")
	private Integer state;//用户状态1:表示能登陆.0:表示已注销
	
	//一个用户有多条拜访记录
	@OneToMany(mappedBy="user")
	private Set<Visit> uVisits=new HashSet<>(0);

	public User(Integer uid, String username) {
		super();
		this.uid = uid;
		this.username = username;
	}

	
	public User() {
	}


	public Set<Visit> getuVisits() {
		return uVisits;
	}

	public void setuVisits(Set<Visit> uVisits) {
		this.uVisits = uVisits;