ssh聯合主鍵的配置

package com.tyzy.bean.resource;

import java.io.Serializable;

import javax.persistence.Embeddable;

@Embeddable
public class Industryid implements Serializable{
	private static final long serialVersionUID = -3449712581842566658L;
	private Long resourceid;
	private Long industryid;
	public Long getResourceid() {
		return resourceid;
	}
	public void setResourceid(Long resourceid) {
		this.resourceid = resourceid;
	}
	public Long getIndustryid() {
		return industryid;
	}
	public void setIndustryid(Long industryid) {
		this.industryid = industryid;
	}
	
}

上面是定義聯合主鍵，需要那兩個主鍵當聯合主鍵

package com.tyzy.bean.resource;

import java.io.Serializable;

import javax.persistence.EmbeddedId;
import javax.persistence.Entity;
import javax.persistence.Table;

@Entity
@Table(name="T_Resource_Industry")
public class ResourceIndustry implements Serializable{

	private static final long serialVersionUID = -4410748581764041711L;
	@EmbeddedId
	private Industryid industryid;
	public Industryid getIndustryid() {
		return industryid;
	}
	public void setIndustryid(Industryid industryid) {
		this.industryid = industryid;
	}

	
}

上面就是講聯合主鍵作爲這張表的主鍵