JPA--Caused by: javax.persistence.PersistenceException: [PersistenceUnit: mysqlJPA] Unable to configure EntityManagerFactory

出现此错误的原因是因为在Supplier类的id上添加了@GeneratedValue(strategy = GenerationType.AUTO, generator = "sequenceGenerator")，

而sequenceGenerator不存在。

package pr.cgl.model;

import javax.annotation.Generated;
import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by xiaotuerguaiguai on 15/11/30.
 */
@Entity
@Table(name = "xx_supplier")
public class Supplier {

    private Integer id;

    private String name;

    private List<Product> productList = new ArrayList<Product>();

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO, generator = "sequenceGenerator")
    public Integer getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Transient
    public List<Product> getProductList() {
        return productList;
    }

    public void setProductList(List<Product> productList) {
        this.productList = productList;
    }
}

JPA--Caused by: javax.persistence.PersistenceException: [PersistenceUnit: mysqlJPA] Unable to configure EntityManagerFactory

原文：http://www.cnblogs.com/cglWorkBook/p/5046883.html