一、定义转换规则
代码语言：javascript复制定义的类上边增加@Named注解标注转换名称定义转换规则
代码语言：javascript复制import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSON;
import org.mapstruct.Named;
import org.springframework.stereotype.Component;
import java.util.List;
import java.util.Objects;
/**
* Mapping通用转换
*/
@Component
public class TypeConversionWorker {
/**
* 对象转json字符串
*
* @param obj
* @return
*/
@Named("toJsonString")
public String toJsonString(Object obj) {
if (Objects.isNull(obj)) {
return null;
}
return JSON.toJSONString(obj);
}
/**
* json字符串转对象
*
* @param jsonStr
* @return
*/
@Named("jsonStringToNameObject")
public List<Name> jsonStringToObject(String jsonStr) {
if (StrUtil.isEmpty(jsonStr)) {
return null;
}
List<Name> names = JSON.parseArray(jsonStr, Name.class);
return names;
}
/**
* json字符串转对象
*
* @param jsonStr
* @return
*/
@Named("jsonStringToNameValueObject")
public List<NameValue> jsonStringToNameValueObject(String jsonStr) {
if (StrUtil.isEmpty(jsonStr)) {
return null;
}
List<NameValue> names = JSON.parseArray(jsonStr, NameValue.class);
return names;
}
/**
* json字符串转对象
*
* @param jsonStr
* @return
*/
@Named("jsonStringToValueObject")
public List<Value> jsonStringToValueObject(String jsonStr) {
if (StrUtil.isEmpty(jsonStr)) {
return null;
}
List<Value> names = JSON.parseArray(jsonStr, Value.class);
return names;
}
}二、使用转换规则
使用@Mapper注解uses引入转换规则，eg:uses = TypeConversionWorker.class
@Mapping使用qualifiedByName标识转换规则，eg:qualifiedByName = “toJsonString”。
代码语言：javascript复制import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import org.mapstruct.factory.Mappers;
import java.util.List;
@Mapper(uses = TypeConversionWorker.class)
public interface ShopConvert {
ShopConvert INSTANCE = Mappers.getMapper(ShopConvert.class);
@Mapping(target = "serviceField", source = "serviceField", qualifiedByName = "jsonStringToNameObject")
@Mapping(target = "costField", source = "costField", qualifiedByName = "jsonStringToNameValueObject")
@Mapping(target = "examinationField", source = "examinationField", qualifiedByName = "jsonStringToValueObject")
List<ShopRespVO> convertList(List<ShopDO> list);
List<ShopSimpleRespVO> convertList02(List<ShopDO> list);
@Mapping(target = "serviceField", source = "serviceField", qualifiedByName = "jsonStringToNameObject")
@Mapping(target = "costField", source = "costField", qualifiedByName = "jsonStringToNameValueObject")
@Mapping(target = "examinationField", source = "examinationField", qualifiedByName = "jsonStringToValueObject")
ShopRespVO convert(ShopDO bean);
@Mapping(target = "serviceField", source = "serviceField", qualifiedByName = "toJsonString")
@Mapping(target = "costField", source = "costField", qualifiedByName = "toJsonString")
@Mapping(target = "examinationField", source = "examinationField", qualifiedByName = "toJsonString")
ShopDO convert(ShopCreateReqVO bean);
@Mapping(target = "serviceField", source = "serviceField", qualifiedByName = "toJsonString")
@Mapping(target = "costField", source = "costField", qualifiedByName = "toJsonString")
@Mapping(target = "examinationField", source = "examinationField", qualifiedByName = "toJsonString")
ShopDO convert(ShopUpdateReqVO bean);
}涉及到实体(非重点)
代码语言：javascript复制import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;
import java.util.Date;
import java.util.List;
@ApiModel("管理后台 - 商品信息 Response VO")
@Data
@EqualsAndHashCode(callSuper = true)
public class ShopRespVO extends ShopBaseVO {
@ApiModelProperty(value = "商品编号", required = true, example = "1024")
private Long id;
@ApiModelProperty(value = "创建时间", required = true, example = "时间戳格式")
private Date createTime;
/*分类名称*/
private String systemClassificationName;
/*前端回填ID*/
private List<Long> ids;
}import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import org.hibernate.validator.constraints.Length;
import java.math.BigDecimal;
import java.util.List;
/**
* 商品 Base VO，提供给添加、修改、详细的子 VO 使用
* 如果子 VO 存在差异的字段，请不要添加到这里，影响 Swagger 文档生成
*/
@Data
public class ShopBaseVO {
/**
* 商品名称
*/
@ApiModelProperty("商品名称")
@Length(max= 255,message="编码长度不能超过255")
private String name;
/**
* 商品分类
*/
@ApiModelProperty("商品分类")
private Long systemClassificationId;
/**
* 标准价格
*/
@ApiModelProperty("标准价格")
private BigDecimal price;
/**
* 最低价格
*/
@ApiModelProperty("最低价格")
private BigDecimal minPrice;
/**
* 商品状态（0正常 1停用）
*/
@ApiModelProperty("商品状态（0正常 1停用）")
private Byte status;
/**
* 服务字段
*/
@ApiModelProperty("服务字段")
private List<Name> serviceField;
/**
* 成本费用标准
*/
@ApiModelProperty("成本费用标准")
private List<NameValue> costField;
/**
* 补充报考字段
*/
@ApiModelProperty("补充报考字段")
private List<Value> examinationField;
/**
* 备注
*/
@ApiModelProperty("备注")
@Length(max= 255,message="备注长度不能超过255")
private String remark;
}import com.baomidou.mybatisplus.annotation.TableName;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;
import org.hibernate.validator.constraints.Length;
import java.math.BigDecimal;
import java.util.Date;
/**
* 商品
* @TableName system_shop
*/
@TableName("system_shop")
@Data
@EqualsAndHashCode(callSuper = true)
public class ShopDO extends TenantBaseDO {
/**
* 商品ID
*/
@ApiModelProperty("商品ID")
private Long id;
/**
* 商品名称
*/
@ApiModelProperty("商品名称")
@Length(max= 255,message="编码长度不能超过255")
private String name;
/**
* 商品分类
*/
@ApiModelProperty("商品分类")
private Long systemClassificationId;
/**
* 标准价格
*/
@ApiModelProperty("标准价格")
private BigDecimal price;
/**
* 最低价格
*/
@ApiModelProperty("最低价格")
private BigDecimal minPrice;
/**
* 商品状态（0正常 1停用）
*/
@ApiModelProperty("商品状态（0正常 1停用）")
private Byte status;
/**
* 服务字段
*/
@ApiModelProperty("服务字段")
private String serviceField;
/**
* 成本费用标准
*/
@ApiModelProperty("成本费用标准")
private String costField;
/**
* 补充报考字段
*/
@ApiModelProperty("补充报考字段")
private String examinationField;
/**
* 创建者
*/
@ApiModelProperty("创建者")
@Length(max= 64,message="编码长度不能超过64")
private String creator;
/**
* 创建时间
*/
@ApiModelProperty("创建时间")
private Date createTime;
/**
* 更新者
*/
@ApiModelProperty("更新者")
@Length(max= 64,message="编码长度不能超过64")
private String updater;
/**
* 更新时间
*/
@ApiModelProperty("更新时间")
private Date updateTime;
/**
* 是否删除
*/
@ApiModelProperty("是否删除")
private Boolean deleted;
/**
* 租户编号
*/
@ApiModelProperty("租户编号")
private Long tenantId;
/**
* 备注
*/
@ApiModelProperty("备注")
@Length(max= 255,message="编码长度不能超过255")
private String remark;
}import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;
import javax.validation.constraints.NotNull;
@ApiModel("管理后台 - 商品更新 Request VO")
@Data
@EqualsAndHashCode(callSuper = true)
public class ShopUpdateReqVO extends ShopBaseVO {
@ApiModelProperty(value = "商品编号", required = true, example = "1024")
@NotNull(message = "商品编号不能为空")
private Long id;
}import io.swagger.annotations.ApiModel;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;
@ApiModel("管理后台 - 商品创建 Request VO")
@Data
@EqualsAndHashCode(callSuper = true)
@ToString(callSuper = true)
public class ShopCreateReqVO extends ShopBaseVO {
}
