[英]No qualifying bean of type available exception
Im trying to Deserialize a hashmap using jackson. My data structure is我正在尝试使用 jackson 反序列化 hashmap。我的数据结构是
public class FilterDto {
private Map<String, List<String>> sectorFilter;
public FilterDto() {}
public Map<String, List<String>> getSectorFilter() {
return sectorFilter;
}
public void setSectorFilter(Map<String, List<String>> sectorFilter) {
this.sectorFilter = sectorFilter;
}
}
My request body is我的请求正文是
{
"sectorFilter": [
{
"ab": [
"abc",
"cde"
]
}
]
}
When i tried to deserialize this i got当我试图反序列化这个时,我得到了
Cannot deserialize instance of `java.util.Map<java.lang.String,java.util.List<java.lang.String>>` out of START_ARRAY token
So i tried using a custom deserialzer to see whether it would work.所以我尝试使用自定义解串器来查看它是否有效。 I created a custom deerialzer like below
我创建了一个如下所示的自定义解串器
public class FilterDeserializer extends StdDeserializer<Map<String,List<String>>> {
public FilterDeserializer(StdDeserializer<?> src) {
super(src);
}
@Override
public Map<String,List<String>> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
}
}
and added it to my dto并将其添加到我的 dto
@JsonDeserialize(using = FilterDeserializer.class)
private Map<String, List<String>> sectorFilter;
but now im getting但现在我得到
No qualifying bean of type 'com.fasterxml.jackson.databind.deser.std.StdDeserializer<?>' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
any idea how can i get this work?知道我怎样才能完成这项工作吗? Thanks
谢谢
sectorFilter
, as you've shown, isn't a map, it's an array of JSON objects. sectorFilter
,如您所示,不是 map,它是 JSON 对象的数组。 Try to deserialize as List<Map<String, List<String>>>
.尝试反序列化为
List<Map<String, List<String>>>
。 Of course, you can also create classes mimicking that structure if you want.当然,如果需要,您也可以创建模仿该结构的类。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.