问题描述
通过将所有日期类型替换为字符串来解决
这是一个来自漫威漫画 API 的 JSON，我正在尝试反序列化并且我得到了
"com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance
of `com.example.demo.json2csharp.Date` (although at least one Creator exists):
no String-argument constructor/factory method to deserialize from String value
('2019-11-07T08:46:15-0500')"
，JSON 示例：
{
"code": 200,"status": "Ok","copyright": "© 2021 MARVEL","attributionText": "Data provided by Marvel. © 2021 MARVEL","attributionHTML": "<a href=\"http://marvel.com\">Data provided by Marvel. © 2021 MARVEL</a>","etag": "f712574873e89d0505dc68a908170fb7970d2f13","data": {
"offset": 0,"limit": 20,"total": 1,"count": 1,"results": [
{
"id": 82967,"digitalId": 0,"title": "Marvel Previews (2017)","issueNumber": 0,"variantDescription": "","description": null,"modified": "2019-11-07T08:46:15-0500","isbn": "","upc": "75960608839302811","diamondCode": "","ean": "","issn": "","format": "","pageCount": 112,"textObjects": [
],"resourceURI": "http://gateway.marvel.com/v1/public/comics/82967","urls": [
{
"type": "detail","url": "http://marvel.com/comics/issue/82967/marvel_previews_2017?utm_campaign=apiRef&utm_source=9a0517af422c1dfbe132dbaf086fa7f7"
}
],"series": {
"resourceURI": "http://gateway.marvel.com/v1/public/series/23665","name": "Marvel Previews (2017 - Present)"
},"variants": [
{
"resourceURI": "http://gateway.marvel.com/v1/public/comics/82965","name": "Marvel Previews (2017)"
},{
"resourceURI": "http://gateway.marvel.com/v1/public/comics/82970","name": "Marvel Previews (2017)"
}
],"collections": [
],"collectedissues": [
],"dates": [
{
"type": "onsaleDate","date": "2099-10-30T00:00:00-0500"
},{
"type": "focDate","date": "2019-10-07T00:00:00-0400"
}
],"prices": [
{
"type": "printPrice","price": 0
}
],"thumbnail": {
"path": "http://i.annihil.us/u/prod/marvel/i/mg/b/40/image_not_available","extension": "jpg"
},"images": [
],"creators": {
"available": 1,"collectionURI": "http://gateway.marvel.com/v1/public/comics/82967/creators","items": [
{
"resourceURI": "http://gateway.marvel.com/v1/public/creators/10021","name": "Jim Nausedas","role": "editor"
}
],"returned": 1
},"characters": {
"available": 0,"collectionURI": "http://gateway.marvel.com/v1/public/comics/82967/characters","items": [
],"returned": 0
},"stories": {
"available": 2,"collectionURI": "http://gateway.marvel.com/v1/public/comics/82967/stories","items": [
{
"resourceURI": "http://gateway.marvel.com/v1/public/stories/183698","name": "cover from Marvel Previews (2017)","type": "cover"
},{
"resourceURI": "http://gateway.marvel.com/v1/public/stories/183699","name": "story from Marvel Previews (2017)","type": "interiorStory"
}
],"returned": 2
},"events": {
"available": 0,"collectionURI": "http://gateway.marvel.com/v1/public/comics/82967/events","returned": 0
}
}
]
}
}
与 ObjectMapper 中使用的所有其他类一样，我的 Date 类是在 https://json2csharp.com/json-to-pojo 生成的：
public class Date {
@JsonProperty("type")
public String getType() {
return this.type;
}
public void setType(String type) {
this.type = type;
}
String type;
@JsonProperty("date")
public Date getDate() {
return this.date;
}
public void setDate(Date date) {
this.date = date;
}
Date date;
public Date() {
}
}
@PostMapping
public Root getComic(@RequestBody ComicPostRequestBody comicPostRequestBody) throws NoSuchAlgorithmException,URISyntaxException,IOException {
URI uri = comicService.makeUrl(comicPostRequestBody.getComicId());
String json = client.getComic(uri);
ObjectMapper mapper = new ObjectMapper();
Root comicWrapper = mapper.readValue(json,Root.class);
return comicWrapper;
}
Root 是包含所有属性的类
public class Root {
int code;
String status;
String copyright;
String attributionText;
String attributionHTML;
String etag;
Data data;
@JsonProperty("code")
public int getCode() {
return this.code;
}
public void setCode(int code) {
this.code = code;
}
@JsonProperty("status")
public String getStatus() {
return this.status;
}
public void setStatus(String status) {
this.status = status;
}
@JsonProperty("copyright")
public String getcopyright() {
return this.copyright;
}
public void setcopyright(String copyright) {
this.copyright = copyright;
}
@JsonProperty("attributionText")
public String getAttributionText() {
return this.attributionText;
}
public void setAttributionText(String attributionText) {
this.attributionText = attributionText;
}
@JsonProperty("attributionHTML")
public String getAttributionHTML() {
return this.attributionHTML;
}
public void setAttributionHTML(String attributionHTML) {
this.attributionHTML = attributionHTML;
}
@JsonProperty("etag")
public String getEtag() {
return this.etag;
}
public void setEtag(String etag) {
this.etag = etag;
}
@JsonProperty("data")
public Data getData() {
return this.data;
}
public void setData(Data data) {
this.data = data;
}
public Root() {
}
}
我的最终目标是创作一部漫画：
results.id
results.title
results.description
results.isbn
results.price
我是编程新手，我发现这样做的方法是将所有 json 反序列化为一个 Root，这样我就可以获得所有这些属性，例如 root.getData().getResults()
如果有一种简单的方法可以解决这个问题或反序列化这个 JSON，我会很高兴知道
谢谢
解决方法
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