Hibernate5联合主键的注解式开发

最新推荐文章于 2019-01-25 17:44:48 发布

原创最新推荐文章于 2019-01-25 17:44:48 发布 · 412 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#hibernate

项目开发过程同时被 2 个专栏收录

11 篇文章

订阅专栏

hibernate

2 篇文章

订阅专栏

本文介绍了一个基于Java的实体类UserView及其ID类UserViewId的设计实现，这两个类利用了JPA注解来定义数据库映射关系，并强调了在进行测试之前需要确保数据库中存在相应的表结构。

UserViewId主键代码块


package cn.cloudclass.bean;

import java.io.Serializable;

import javax.persistence.Embeddable;
@Embeddable
public class UserViewId implements Serializable{
    private String name;
    private String password;
    private String type;

    public UserViewId() {
    }
    public UserViewId(String name, String password, String type) {
        super();
        this.name = name;
        this.password = password;
        this.type = type;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getType() {
        return type;
    }
    public void setType(String type) {
        this.type = type;
    }

}

UserView 代码块

package cn.cloudclass.bean;

import java.io.Serializable;

import javax.persistence.EmbeddedId;
import javax.persistence.Entity;
import javax.persistence.Table;
@Entity
@Table(name="userview")
public class UserView implements Serializable{

    public UserView() {
    }

    public UserView(String name,String password,String type) {
        this.id = new UserViewId(name,password,type);
    }

    @EmbeddedId
    private UserViewId id;

    public UserViewId getId() {
        return id;
    }

    public void setId(UserViewId id) {
        this.id = id;
    }

}