用注解给映射视图的类创建联合主键

视图类:

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;

@Entity
@IdClass(VW_App_key.class)
public class VW_App_Lab_Aux_Vwbasic {
	private Integer ap_id;
	private Integer ap_c_id;
	private String Project2;
	private String Au_SickMark;
	@Id
	public Integer getAp_id() {
		return ap_id;
	}
	public void setAp_id(Integer apId) {
		ap_id = apId;
	}
	public Integer getAp_c_id() {
		return ap_c_id;
	}
	public void setAp_c_id(Integer apCId) {
		ap_c_id = apCId;
	}
	@Id
	public String getProject2() {
		return Project2;
	}
	public void setProject2(String project2) {
		Project2 = project2;
	}
	public String getAu_SickMark() {
		return Au_SickMark;
	}
	public void setAu_SickMark(String auSickMark) {
		Au_SickMark = auSickMark;
	}
	
	
}

　联合主键类：

import java.io.Serializable;

import javax.persistence.Embeddable;

@Embeddable  
public class VW_App_key implements Serializable{//联合主键（VW_App_Lab_Aux_Vwbasic）
    private static final long serialVersionUID = -3304319243957837925L;  
    private Integer ap_id;
    private String Project2;
    public Integer getAp_id() {
		return ap_id;
	}

	public void setAp_id(Integer apId) {
		ap_id = apId;
	}

	public String getProject2() {
		return Project2;
	}

	public void setProject2(String project2) {
		Project2 = project2;
	}

	@Override  
    public boolean equals(Object o) {  
        if(o instanceof VW_App_Lab_Aux_Vwbasic){  
            VW_App_Lab_Aux_Vwbasic key = (VW_App_Lab_Aux_Vwbasic)o ;  
            if(this.ap_id == key.getAp_id() && this.Project2.equals(key.getProject2())){  
                return true ;  
            }  
        }  
        return false ;  
    }  
      
    @Override  
    public int hashCode() {  
        return this.Project2.hashCode();  
    }
}