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
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
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
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
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
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
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
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
edited Nov 23 '18 at 4:23
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
asked Nov 23 '18 at 3:34
Fred Clausen
1,24212042
1,24212042
add a comment |
add a comment |
1 Answer
1
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.
answered Nov 23 '18 at 9:03
vin59
586
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53440362%2fconfiguring-jackson-mapper-when-using-dropwizard%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
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.
answered Nov 23 '18 at 9:03
vin59
586
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.
answered Nov 23 '18 at 9:03
vin59
586
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.
answered Nov 23 '18 at 9:03
vin59
586
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 '18 at 9:03
vin59
586
answered Nov 23 '18 at 9:03
vin59
586
answered Nov 23 '18 at 9:03
vin59
586
answered Nov 23 '18 at 9:03
vin59
586
586
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53440362%2fconfiguring-jackson-mapper-when-using-dropwizard%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
