使用 spring Mapper 映射 Map 对象 - Java

Question

我在尝试使用 spring 的 Mapper 注释功能时遇到了一些困难。我想使用映射器在 java 中映射一个 Map 对象，如下所示：

主机计数器：

@Data
@NoArgsConstructor
@AllArgsConstructor
public class HostsCounters {
    private Map<String,Map<String,Long>> hostsList;
}

映射器：

@Mapper(componentModel = "spring")
public interface ResponseMapper {
    GeneralResponse toResponse(SevCount sevCount, HostsCounters hostsList, List<RegDAO> Reg);
}

一般回复：

@Data
@NoArgsConstructor
public class GeneralResponse {
    private List<RegDAO> Reg;
    private HostsCounters hostsList;
    private SevCount sevCount;
}

错误：

Can't map property "java.util.Map> hostsList" to " HostsCounters hostsList". Consider to declare/implement a mapping method

Answer 1

只需使用：

@Mapping(source = "hostsList", target = "hostsList")
GeneralResponse toResponse(SevCount sevCount, HostsCounters hostsList, List<RegDAO> Reg);

但我强烈建议您去掉具有不同含义的相同名称：

HostsCounters hostsList -> HostsCounters hostsLists

使用 spring Mapper 映射 Map 对象 - Java

Use spring Mapper to map object of Map - Java

java

spring

jpa

mapper