我正在尝试使用以下REST HAL响应中的实体列表：
{
"_embedded" : {
"posts" : [ {
"branch" : 1,
"article" : "aaaaaaa",
"featuredImage" : "aaaaaaa",
"authorId" : 1,
"datePublished" : "2020-05-05T09:11:13.336+0000",
"commentsEnabled" : true,
"enabled" : false,
"views" : 0,
"snippetTitle" : null,
"snippetDescription" : null,
"comments" : null,
"_links" : {
"self" : {
"href" : "http://localhost:8081/posts/1"
},
"post" : {
"href" : "http://localhost:8081/posts/1"
},
"categories" : {
"href" : "http://localhost:8081/posts/1/categories"
}
}
}, {
"branch" : 1,
"article" : "aaaaaaa",
"featuredImage" : "aaaaaaa",
"authorId" : 1,
"datePublished" : "2020-05-05T10:45:15.999+0000",
"commentsEnabled" : true,
"enabled" : false,
"views" : 0,
"snippetTitle" : null,
"snippetDescription" : null,
"comments" : null,
"_links" : {
"self" : {
"href" : "http://localhost:8081/posts/3"
},
"post" : {
"href" : "http://localhost:8081/posts/3"
},
"categories" : {
"href" : "http://localhost:8081/posts/3/categories"
}
}
} ]
},
"_links" : {
"self" : {
"href" : "http://localhost:8081/posts/search/byAuthorId?authorId=1&page=0&size=10"
}
},
"page" : {
"size" : 10,
"totalElements" : 3,
"totalPages" : 1,
"number" : 0
}
}
我想将这些实体映射到此类：
@Setter
@Getter
@AllArgsConstructor
public class Post {
private int id;
private int branch;
private String article;
private Date datePublished;
private String featuredImage;
private Boolean commentsEnabled;
private Boolean enabled;
private int views;
private String snippetTitle;
private String snippetDescription;
}
但是，我不断收到错误：
无法识别的字段“ _embedded”（类
org.springframework.hateoas.PagedModel），未标记为可忽略（3
已知属性：“链接”，“页面”，“内容”]）
使用此代码：
ObjectMapper mapper = new ObjectMapper();
MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
messageConverter.setSupportedMediaTypes(MediaType.parseMediaTypes("application/hal+json"));
messageConverter.setObjectMapper(mapper);
ResponseEntity<PagedModel<Post>> responseEntity =
new RestTemplate(Arrays.asList(messageConverter)).exchange(uri, HttpMethod.GET, HttpEntity.EMPTY, new ParameterizedTypeReference<PagedModel<Post>>() {});
这些版本是：
Jackson-databind版本：2.11.0
Spring-hateoas版本：1.0.5.RELEASE
任何帮助，将不胜感激！
最佳答案
响应结构看起来像PagedResources<T>类型。
在org.springframework.hateoas.PagedResources中使用ParameterizedTypeReference
ResponseEntity<PagedResources<Post>> responseEntity =
new RestTemplate(Arrays.asList(messageConverter)).exchange(uri, HttpMethod.GET, HttpEntity.EMPTY, new ParameterizedTypeReference<PagedResources<Post>>() {});