注解JAVA对象（基于Hibernate4.3）

package com.chauvet.po;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

import org.hibernate.annotations.GenericGenerator;

@Entity
@Table(name="user")
public class User{
    private String id;
    private String name;
    private int sex;
    private int age;
    private Date createTime;
    private Date registerTime;

    @Id
    @GenericGenerator(name="systemUUID",strategy="uuid")
    @GeneratedValue(generator="systemUUID")
    @Column(name = "id", insertable = true, updatable = true, nullable = false,length = 32)
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }

    @Column(name="name",length=32)
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

    @Column(name="sex")
    public int getSex() {
        return sex;
    }
    public void setSex(int sex) {
        this.sex = sex;
    }

    @Column(name="age")
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }

    @Temporal(TemporalType.TIMESTAMP)
    @Column(name="createTime")
    public Date getCreateTime() {
        return createTime;
    }
    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    @Temporal(TemporalType.TIMESTAMP)
    @Column(name="registerTime")
    public Date getRegisterTime() {
        return registerTime;
    }
    public void setRegisterTime(Date registerTime) {
        this.registerTime = registerTime;
    }
}