com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Could not resolve type id 'com.lbsk.data.entity.Jiemi' as a subtype of `java.lang.Object`: no such class found at [Source: (byte[])"["com.lbsk.data.entity.Jiemi",{"distributbox":["com.lbsk.data.entity.Distributbox",{"breakers":["java.util.HashMap",{"1":["com.lbsk.data.entity.LbskBreaker",{"addr":"1","mac":null,"title":"线路01","lineType":"220","model":"JZK2L100-BL6523","model2":16391,"specification":63,"version":"0.87","version2":45143,"control":1,"visibility":1,"autoClose":1,"totalChannelId":"-1","voltWarnUp":300,"voltWarnDn":77,"leakWarnUp":50,"temprWarn":60,"currentAlarmA":0,"currentAlarmB":0,"currentAlarmC":0,"currentW"[truncated 3574 bytes]; line: 1, column: 31]
时间: 2023-08-21 22:04:46 浏览: 73
这个异常是因为 Jackson 在反序列化时找不到指定的类。具体来说,它尝试使用给定的类型 ID 来查找对应的 Java 类,并将其实例化。但是,在这个例子中,Jackson 找不到类 `com.lbsk.data.entity.Jiemi`,导致反序列化失败。
可能的原因是在反序列化之前,类 `com.lbsk.data.entity.Jiemi` 没有被正确地加载到 JVM 中。你可以检查一下该类是否存在、是否被正确地打包和部署到应用程序中,或者是否存在版本冲突等问题。另外,如果你使用的是 Spring Boot,可能需要检查一下类扫描配置,确保 Jackson 能够扫描到需要的类。
相关问题
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type
com.fasterxml.jackson.databind.exc.MismatchedInputException是Jackson库中的一个异常,它表示无法将输入的值反序列化为指定的类型。这通常发生在输入数据与目标类型不匹配的情况下。
以下是一个演示如何处理com.fasterxml.jackson.databind.exc.MismatchedInputException异常的例子:
```java
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.exc.MismatchedInputException;
public class Main {
public static void main(String[] args) {
String json = "{\"name\":\"John\", \"age\":30}";
try {
ObjectMapper objectMapper = new ObjectMapper();
Car car = objectMapper.readValue(json, Car.class);
System.out.println(car);
} catch (MismatchedInputException e) {
System.out.println("Cannot deserialize value of type: " + e.getTargetType());
} catch (Exception e) {
System.out.println("An error occurred: " + e.getMessage());
}
}
}
class Car {
private String name;
private int age;
// getters and setters
@Override
public String toString() {
return "Car{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}
}
```
在上面的例子中,我们尝试将一个JSON字符串反序列化为Car对象。如果JSON字符串中的属性与Car类的属性不匹配,就会抛出com.fasterxml.jackson.databind.exc.MismatchedInputException异常。在catch块中,我们捕获该异常并打印出目标类型。
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `com.aliyun.bizworks.centers.user.businessdomain.identification.protocols.oidc.model.OidcProtocolAccessToken` (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator) at [Source: (byte[])"["com.aliyun.bizworks.centers.user.businessdomain.identification.protocols.oidc.model.OidcProtocolAccessToken",{"accessToken":"69O76SX7USMU","scope":"openid all","issuedAt":1653546793173,"expiresIn":6000}]"; line: 1, column: 113]
这个错误提示是由于在反序列化过程中,无法构造`OidcProtocolAccessToken`对象的实例。根据错误信息,可以看出该对象缺少默认构造函数。在代码中只提供了`@Data`和`@Builder`注解,但没有提供无参构造方法。
解决这个问题的方法可以有两种:
1. 为`OidcProtocolAccessToken`对象添加无参构造方法。
2. 使用lombok注解`@NoArgsConstructor`来自动生成无参构造方法。
通过以上两种方法,你可以解决这个问题并成功反序列化`OidcProtocolAccessToken`对象。