CODEWITHSUNDEEP
spring-bootjacksonjackson-databind
Kalindu
Kalindu

Reputation: 273

How to fix jackson java 8 data/time error?

Java 8 date/time type `java.time.LocalDateTime` not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling

I have been getting this error in my spring boot project that uses Gradle. I added the below given Gradle dependency for jsr310 as well, still it didn't work.

implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-jsr310', version: '2.13.3'

How can I fix this error? My project uses Java 17 and Spring 2.6.7.

Upvotes: 17

Views: 37675

Answers (2)

Muhammadqodir Muhsinov
Muhammadqodir Muhsinov

Reputation: 104

new ObjectMapper().registerModule(new JavaTimeModule());

Hope, this helps you.

Upvotes: 9

Toni
Toni

Reputation: 5165

JavaTimeModule should be registered explicitly:

@Configuration
public class JacksonConfiguration { 
    @Bean
    public ObjectMapper objectMapper() {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new JavaTimeModule());
        return mapper;
    }
}

UPDATE:

The first solution should be used with jackson-datatype-jsr310 versions 2.x before 2.9. Since you added version 2.13.3, the module should be registered as shown below, according to the answer.

@Configuration
public class JacksonConfiguration { 
    @Bean
    public ObjectMapper objectMapper() {
        return JsonMapper.builder()
            .addModule(new JavaTimeModule())
            .build();
    }
}

UPDATE 2:

Starting with Jackson 2.2, Modules can be automatically discovered using the Service Provider Interface (SPI) feature. You can activate this by instructing an ObjectMapper to find and register all Modules:

// Jackson 2.10 and later
ObjectMapper mapper = JsonMapper.builder()
    .findAndAddModules()
    .build();
// or, 2.x before 2.9
ObjectMapper mapper = new ObjectMapper();
mapper.findAndRegisterModules();

For reference: jackson-modules-java8 - Registering modules

Upvotes: 18

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