1.JPA本身是不支持boolean。可以用Hibernater自带的标签.修改如下.
@Column(name = "manager_log")
@org.hibernate.annotations.Type(type="yes_no") private boolean manageLog = false; // 能否管理系统日志
数据库不认识boolean,用其他类型代替,number或者varchar 如果你的class中用的boolean,数据库中用varchar,把映射文件中property的type写成yes_no,数据库保存的会是Y和N,执行hql时,hibernate会把Y和true,N和false相互转换,<property name="visible" type="yes_no" />。 如果你的class中用的boolean,数据库中用的number,把映射文件中property的type写成byte,数据库保存的会是1和0,执行hql时,hibernate会把1和true,0和false互相转换,<property name="visible" type="byte" />。
给你一个例子:
@Entity @Table(name = "question", catalog = "table") public class Question implements java.io.Serializable {
// Fields
@Id @GeneratedValue(strategy = IDENTITY) @Column(name = "id", unique = true, nullable = false) private Integer id; @Column(name = "untreated") @org.hibernate.annotations.Type(type="yes_no") private Boolean untreated;
public Integer getId() { return this.id; }
public void setId(Integer id) { this.id = id; }
public Boolean getUntreated() { return untreated; }
public void setUntreated(Boolean untreated) { this.untreated = untreated; }
} |