hibernate以Annotation方式oracle以及mysql数据库相结合的实体配置

oracle配置：
package com.test.hibernate;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;
@Entity
@SequenceGenerator(name="categorySEQ",sequenceName="seq_for_category")
public class Category {
private int id;
private String name;
@Id
@GeneratedValue(strategy=GenerationType.SEQUENCE,generator="categorySEQ")
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}

mySql配置：
package com.test.hibernate;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Category {
private int id;
private String name;
/**
* @return
* 这里注意如果设置为GeneratedValue那么在自动生成表的过程中
* 这个列就会被设置为自动增长的列，并且这个列是主键，如果不写
* 那么它只是主键而不是自动增长。
*/
@Id
@GeneratedValue
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}