嗨,我正在尝试所有可能的更改以读取以下json字符串,但仍然出现以下错误,我的json是有效的字符串,并且问题是子元素的映射存在问题
这是我的json字符串
[
{
"denotations": [
{
"id": [
"CUI-less"
],
"obj": "disease",
"span": {
"begin": 31,
"end": 41
}
}
],
"elapsed_time": {
"ner": 2.759,
"normalization": 0.002,
"tmtool": 0.148,
"total": 2.91
},
"logits": {
"disease": [
[
{
"end": 41,
"id": "CUI-less",
"start": 31
},
0.999957799911499
]
],
"drug": [],
"gene": [],
"species": []
},
"project": "BERN",
"sourcedb": "PubMed",
"sourceid": "2832773",
"text": "Absence of humoral immunity to poliovirus in vaccinated individuals.",
"timestamp": "Thu Aug 06 13:42:27 +0000 2020"
}
]
我的java pojo(Logit的类)
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.fasterxml.jackson.annotation.JsonAnyGetter;
import com.fasterxml.jackson.annotation.JsonAnySetter;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonPropertyOrder({
"disease",
"drug",
"gene",
"species"
})
public class Logits {
@JsonProperty("disease")
private List<List<Disease>> disease = null;
@JsonProperty("drug")
private List<Object> drug = null;
@JsonProperty("gene")
private List<Object> gene = null;
@JsonProperty("species")
private List<Object> species = null;
@JsonIgnore
private Map<String, Object> additionalProperties = new HashMap<String, Object>();
@JsonProperty("disease")
public List<List<Disease>> getDisease() {
return disease;
}
@JsonProperty("disease")
public void setDisease(List<List<Disease>> disease) {
this.disease = disease;
}
@JsonProperty("drug")
public List<Object> getDrug() {
return drug;
}
@JsonProperty("drug")
public void setDrug(List<Object> drug) {
this.drug = drug;
}
@JsonProperty("gene")
public List<Object> getGene() {
return gene;
}
@JsonProperty("gene")
public void setGene(List<Object> gene) {
this.gene = gene;
}
@JsonProperty("species")
public List<Object> getSpecies() {
return species;
}
@JsonProperty("species")
public void setSpecies(List<Object> species) {
this.species = species;
}
@JsonAnyGetter
public Map<String, Object> getAdditionalProperties() {
return this.additionalProperties;
}
@JsonAnySetter
public void setAdditionalProperty(String name, Object value) {
this.additionalProperties.put(name, value);
}
}
即使尝试过String [] []疾病仍然无法解析,请让我知道我在这里想念的东西
解析代码
String denotations = restTemplate.getForObject("http://com/text",String.class);
System.out.println(denotations);
ObjectMapper mapper = new ObjectMapper();
BernOBJ denoObj = mapper.readValue(denotations, BernOBJ.class);
System.out.println(denoObj);
Stacktrace
com.fasterxml.jackson.databind.exc.MismatchedInputException:无法 将
com.goodyzain.bern.models.BernOBJ
的实例反序列化 START_ARRAY令牌位于[来源:(字符串)” [ { “符号”:[ { “ID”: [ “无CUI” ], “ obj”:“疾病”, “跨度”: { “开始”:31, “结束”:41 } } ], “ elapsed_time”:{ “ ner”:2.759, “归一化”:0.002, “ tmtool”:0.148, “总计”:2.91 }, “登录”:{ “疾病”: [ “ [被截断的555个字符];行:1,列:1]位于com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1468) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1242) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1190) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeFromArray(BeanDeserializer.java:604) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:190) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:166) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4482) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3434) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3402) 〜[jackson-databind-2.11.1.jar:2.11.1],网址为 com.goodyzain.bern.BernAPIController.getUsersById(BernAPIController.java:41) 〜[classes /:na]在sun.reflect.NativeMethodAccessorImpl.invoke0(本机 方法)〜[na:1.8.0_252]在 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 〜[na:1.8.0_252]在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 〜[na:1.8.0_252]在java.lang.reflect.Method.invoke(Method.java:498) 〜[na:1.8.0_252]在 org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 javax.servlet.http.HttpServlet.service(HttpServlet.java:626) 〜[tomcat-embed-core-9.0.37.jar:4.0.FR]在 org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) 〜[spring-webmvc-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 javax.servlet.http.HttpServlet.service(HttpServlet.java:733) 〜[tomcat-embed-core-9.0.37.jar:4.0.FR]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) 〜[tomcat-embed-websocket-9.0.37.jar:9.0.37]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) 〜[spring-web-5.2.8.RELEASE.jar:5.2.8.RELEASE]在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) 〜[tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1589) [tomcat-embed-core-9.0.37.jar:9.0.37]在 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.37.jar:9.0.37]在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_252]在 java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_252]在 org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.37.jar:9.0.37]在 java.lang.Thread.run(Thread.java:748)[na:1.8.0_252]
答案 0 :(得分:1)
您当前遇到的错误:
Cannot deserialize instance of com.goodyzain.bern.models.BernOBJ out of START_ARRAY token at [Source: (String)"[ {
表示您具有对象的JSON数组(以[{...
开头),但是尝试将其解析为单个对象:
BernOBJ denoObj = mapper.readValue(denotations, BernOBJ.class);
通常应该将数组解析为值列表,例如像这样:
List<BernOBJ> denoObj = mapper.readValue(denotations,
mapper.getTypeFactory().constructCollectionType(List.class, BernObj.class));
此外,您的List<List<Disease>>
列表并不完全包含Disease
个对象,它包含一个对象和一个double
值:
[
[
{
"end": 41,
"id": "CUI-less",
"start": 31
},
0.999957799911499
]
]
我不确定那里是否总是有一个对象和一个数值,以及它的含义,但是您可以执行以下操作。创建一个附加的类,例如DiseasePair
,并按以下方式映射它:
@JsonFormat(shape = JsonFormat.Shape.ARRAY)
@JsonPropertyOrder({ "disease", "numericValue" })
class DiseasePair {
private Disease;
private Double numericValue;
}
然后将您的List<List<Disease>>
字段类型更改为List<DiseasePair>
。