4.Dao层
4.1先编写pojo模型类
public class Items {
private Integer id;
private String name;
private Double price;
private String pic;
private Date createtime;
private String detail;
public Items() {
}
public Items(Integer id, String name, Double price, String pic, Date createtime, String detail) {
this.id = id;
this.name = name;
this.price = price;
this.pic = pic;
this.createtime = createtime;
this.detail = detail;
}
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;
}
public Double getPrice() {
return price;
}
public void setPrice(Double price) {
this.price = price;
}
public String getPic() {
return pic;
}
public void setPic(String pic) {
this.pic = pic;
}
public Date getCreatetime() {
return createtime;
}
public void setCreatetime(Date createtime) {
this.createtime = createtime;
}
public String getDetail() {
return detail;
}
public void setDetail(String detail) {
this.detail = detail;
}
@Override
public String toString() {
return "Items{" +
"id=" + id +
", name='" + name + '\'' +
", price=" + price +
", pic='" + pic + '\'' +
", createtime=" + createtime +
", detail='" + detail + '\'' +
'}';
}
}
Dao层代码接口
public interface ItemsDao {
@Select("select * from items where id=#{id}")
public Items findById(Integer id);
}