Configuring Jackson mapper when using Dropwizard
I would like to use the Java 8 java.time with Jersey/Jackson in the context of a Dropwizard app. I understand I need to use jackson-modules-java8 and configure the mapper object.
But how do I configure Jersey's automagic mapper that deserialises the incoming JSON for me? I.e. where would I do mapper.registerModule(new JavaTimeModule());
?
To illustrate the current situation here is an example class that represents the incoming JSON:
public class Example {
// Want to use java.time instead
private Date date;
private final String ISO_OFFSET_DATE_TIME = "YYYY-MM-DD'T'HH:mm:ssZ";
@JsonCreator
public Example(@JsonProperty("date")
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
Date date) {
this.date = date;
}
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
public Date getDate() {
return date;
}
}
As you can see that uses the older Date API. The Jersey resources looks like the following:
@Path("/example")
@Consumes(MediaType.APPLICATION_JSON)
public class ExampleResource {
@POST
public void consume(Example example) {
// Do stuff with example.date
}
}
json jackson jersey dropwizard
add a comment |
I would like to use the Java 8 java.time with Jersey/Jackson in the context of a Dropwizard app. I understand I need to use jackson-modules-java8 and configure the mapper object.
But how do I configure Jersey's automagic mapper that deserialises the incoming JSON for me? I.e. where would I do mapper.registerModule(new JavaTimeModule());
?
To illustrate the current situation here is an example class that represents the incoming JSON:
public class Example {
// Want to use java.time instead
private Date date;
private final String ISO_OFFSET_DATE_TIME = "YYYY-MM-DD'T'HH:mm:ssZ";
@JsonCreator
public Example(@JsonProperty("date")
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
Date date) {
this.date = date;
}
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
public Date getDate() {
return date;
}
}
As you can see that uses the older Date API. The Jersey resources looks like the following:
@Path("/example")
@Consumes(MediaType.APPLICATION_JSON)
public class ExampleResource {
@POST
public void consume(Example example) {
// Do stuff with example.date
}
}
json jackson jersey dropwizard
add a comment |
I would like to use the Java 8 java.time with Jersey/Jackson in the context of a Dropwizard app. I understand I need to use jackson-modules-java8 and configure the mapper object.
But how do I configure Jersey's automagic mapper that deserialises the incoming JSON for me? I.e. where would I do mapper.registerModule(new JavaTimeModule());
?
To illustrate the current situation here is an example class that represents the incoming JSON:
public class Example {
// Want to use java.time instead
private Date date;
private final String ISO_OFFSET_DATE_TIME = "YYYY-MM-DD'T'HH:mm:ssZ";
@JsonCreator
public Example(@JsonProperty("date")
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
Date date) {
this.date = date;
}
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
public Date getDate() {
return date;
}
}
As you can see that uses the older Date API. The Jersey resources looks like the following:
@Path("/example")
@Consumes(MediaType.APPLICATION_JSON)
public class ExampleResource {
@POST
public void consume(Example example) {
// Do stuff with example.date
}
}
json jackson jersey dropwizard
I would like to use the Java 8 java.time with Jersey/Jackson in the context of a Dropwizard app. I understand I need to use jackson-modules-java8 and configure the mapper object.
But how do I configure Jersey's automagic mapper that deserialises the incoming JSON for me? I.e. where would I do mapper.registerModule(new JavaTimeModule());
?
To illustrate the current situation here is an example class that represents the incoming JSON:
public class Example {
// Want to use java.time instead
private Date date;
private final String ISO_OFFSET_DATE_TIME = "YYYY-MM-DD'T'HH:mm:ssZ";
@JsonCreator
public Example(@JsonProperty("date")
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
Date date) {
this.date = date;
}
@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = ISO_OFFSET_DATE_TIME)
public Date getDate() {
return date;
}
}
As you can see that uses the older Date API. The Jersey resources looks like the following:
@Path("/example")
@Consumes(MediaType.APPLICATION_JSON)
public class ExampleResource {
@POST
public void consume(Example example) {
// Do stuff with example.date
}
}
json jackson jersey dropwizard
json jackson jersey dropwizard
edited Nov 23 at 4:23
asked Nov 23 at 3:34
Fred Clausen
1,24212042
1,24212042
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add a comment |
1 Answer
1
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JavaTimeModule
is registered by default in Dropwizard 1.0.0 and above. For previous versions, the dropwizard-java8 bundle provided support for Java 8 features. Java 8 is the baseline for Dropwizard 1.0.0, and the bundle was merged into baseline.
Assuming you use Dropwizard 1.0.0 or above, if you still need to access the ObjectMapper
, you can do it in your Application<T>
:
- in method
void initialize(Bootstrap<T> bootstrap)
, viabootstrap.getObjectMapper()
- in method
abstract void run(T configuration, Environment environment)
, viaenvironment.getObjectMapper()
That way, you can register other modules, or enable or disable Jackson features. Some of them impact how Java 8 types are serialized and deserialized.
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
JavaTimeModule
is registered by default in Dropwizard 1.0.0 and above. For previous versions, the dropwizard-java8 bundle provided support for Java 8 features. Java 8 is the baseline for Dropwizard 1.0.0, and the bundle was merged into baseline.
Assuming you use Dropwizard 1.0.0 or above, if you still need to access the ObjectMapper
, you can do it in your Application<T>
:
- in method
void initialize(Bootstrap<T> bootstrap)
, viabootstrap.getObjectMapper()
- in method
abstract void run(T configuration, Environment environment)
, viaenvironment.getObjectMapper()
That way, you can register other modules, or enable or disable Jackson features. Some of them impact how Java 8 types are serialized and deserialized.
add a comment |
JavaTimeModule
is registered by default in Dropwizard 1.0.0 and above. For previous versions, the dropwizard-java8 bundle provided support for Java 8 features. Java 8 is the baseline for Dropwizard 1.0.0, and the bundle was merged into baseline.
Assuming you use Dropwizard 1.0.0 or above, if you still need to access the ObjectMapper
, you can do it in your Application<T>
:
- in method
void initialize(Bootstrap<T> bootstrap)
, viabootstrap.getObjectMapper()
- in method
abstract void run(T configuration, Environment environment)
, viaenvironment.getObjectMapper()
That way, you can register other modules, or enable or disable Jackson features. Some of them impact how Java 8 types are serialized and deserialized.
add a comment |
JavaTimeModule
is registered by default in Dropwizard 1.0.0 and above. For previous versions, the dropwizard-java8 bundle provided support for Java 8 features. Java 8 is the baseline for Dropwizard 1.0.0, and the bundle was merged into baseline.
Assuming you use Dropwizard 1.0.0 or above, if you still need to access the ObjectMapper
, you can do it in your Application<T>
:
- in method
void initialize(Bootstrap<T> bootstrap)
, viabootstrap.getObjectMapper()
- in method
abstract void run(T configuration, Environment environment)
, viaenvironment.getObjectMapper()
That way, you can register other modules, or enable or disable Jackson features. Some of them impact how Java 8 types are serialized and deserialized.
JavaTimeModule
is registered by default in Dropwizard 1.0.0 and above. For previous versions, the dropwizard-java8 bundle provided support for Java 8 features. Java 8 is the baseline for Dropwizard 1.0.0, and the bundle was merged into baseline.
Assuming you use Dropwizard 1.0.0 or above, if you still need to access the ObjectMapper
, you can do it in your Application<T>
:
- in method
void initialize(Bootstrap<T> bootstrap)
, viabootstrap.getObjectMapper()
- in method
abstract void run(T configuration, Environment environment)
, viaenvironment.getObjectMapper()
That way, you can register other modules, or enable or disable Jackson features. Some of them impact how Java 8 types are serialized and deserialized.
answered Nov 23 at 9:03
vin59
586
586
add a comment |
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