maven构建SSM工程[应用]3

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);
}

 

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