idea 从数据库快速生成Spring Data JPA实体类

第一步,调出 Persistence 窗口.

File—>Project Structure—>model—> + —>JPA

第二步:打开 Persistence窗口

配置 生成实体类的参数

如图:

• 1.数据源,即链接数据库的信息,按要求填写数据库信息即可

• 2.生成实体类的位置.

• 3.实体类名称前缀.这里我什么都没写.

• 4.实体类名称后缀. 这里我写Entity. 比如数据库表名为 user,那么生成实体类为 UserEntity

• 5.选择哪些表的哪些字段生成实体类.这里我全选.

• 6.生成的实体类自动添加 JPA注解.

最后点击ok,就能在我们的项目下看到生成的实体类

如:

package com.itguang.weixinsell.entity;import javax.persistence.Basic;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.Id;import javax.persistence.Table;import java.sql.Timestamp;/** * @author itguang * @create 2017-11-25 14:02 **/@Entity@Table(name = "product_category", schema = "sell", catalog = "")public class ProductCategoryEntity {    private int categoryId;    private String categoryName;    private int categoryType;    private Timestamp createTime;    private Timestamp updateTime;    @Id    @Column(name = "category_id")    public int getCategoryId() {        return categoryId;    }    public void setCategoryId(int categoryId) {        this.categoryId = categoryId;    }    @Basic    @Column(name = "category_name")    public String getCategoryName() {        return categoryName;    }    public void setCategoryName(String categoryName) {        this.categoryName = categoryName;    }    @Basic    @Column(name = "category_type")    public int getCategoryType() {        return categoryType;    }    public void setCategoryType(int categoryType) {        this.categoryType = categoryType;    }    @Basic    @Column(name = "create_time")    public Timestamp getCreateTime() {        return createTime;    }    public void setCreateTime(Timestamp createTime) {        this.createTime = createTime;    }    @Basic    @Column(name = "update_time")    public Timestamp getUpdateTime() {        return updateTime;    }    public void setUpdateTime(Timestamp updateTime) {        this.updateTime = updateTime;    }    @Override    public boolean equals(Object o) {        if (this == o) return true;        if (o == null || getClass() != o.getClass()) return false;        ProductCategoryEntity that = (ProductCategoryEntity) o;        if (categoryId != that.categoryId) return false;        if (categoryType != that.categoryType) return false;        if (categoryName != null ? !categoryName.equals(that.categoryName) : that.categoryName != null) return false;        if (createTime != null ? !createTime.equals(that.createTime) : that.createTime != null) return false;        if (updateTime != null ? !updateTime.equals(that.updateTime) : that.updateTime != null) return false;        return true;    }    @Override    public int hashCode() {        int result = categoryId;        result = 31 * result + (categoryName != null ? categoryName.hashCode() : 0);        result = 31 * result + categoryType;        result = 31 * result + (createTime != null ? createTime.hashCode() : 0);        result = 31 * result + (updateTime != null ? updateTime.hashCode() : 0);        return result;    }}