Hibernate 缓存 关于注解方式

要引入

import org.hibernate.annotations.Cache;

在类前面添加：

@Cache(usage= CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)

可选项有：

• read-only

• read-write

• nonstrict-read-write

• transactional

完整示例：

package com.hlcg.main.bean;





import org.hibernate.annotations.Cache;

import org.hibernate.annotations.CacheConcurrencyStrategy;



import javax.persistence.*;



/**

 * Created with IntelliJ IDEA.

 * User: HYY

 * Date: 13-10-20

 * Time: 下午1:04

 * To change this template use File | Settings | File Templates.

 */

@Entity

@Table(name = "hl_key_value")

@Cache(usage= CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)

public class KeyValue {

    private Integer id;//主键

    private String key;

    private String value;

    private Integer type;//类型

    private String description;//描述、简介





    @Id

    @SequenceGenerator(name = "increment")

    @GeneratedValue(strategy = GenerationType.AUTO, generator = "increment")

    public Integer getId() {

        return id;

    }



    public void setId(Integer id) {

        this.id = id;

    }



    @Column(name = "`key`", unique = true,nullable=false, length = 200)

    public String getKey() {

        return key;

    }



    public void setKey(String key) {

        this.key = key;

    }





    @Column(name = "`value`", length = 3000)

    public String getValue() {

        return value;

    }



    public void setValue(String value) {

        this.value = value;

    }



    @Column(name = "`type`")

    public Integer getType() {

        return type;

    }



    public void setType(Integer type) {

        this.type = type;

    }



    @Column(length = 300)

    public String getDescription() {

        return description;

    }



    public void setDescription(String description) {

        this.description = description;

    }

}

注意key,value都是数据库的关键字 要加上``才行。