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| Tip |
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| title | Direct, bi-directional JSON <=> XML conversions |
|---|
|
As of Camel 2.10, Camel supports direct, bi-directional JSON <=> XML conversions via the camel-xmljson data format, which is documented separately. |
Using JSON
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Data Format With the XStream Library
| Code Block |
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// Let's turn Object messages into JSON then send to MQSeries
from("activemq:My.Queue")
.marshal().json()
.to("mqseries:Another.Queue");
|
Using JSON
...
Data Format With the Jackson Library
| Code Block |
|---|
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// Let's turn Object messages into JSON then send to MQSeries
from("activemq:My.Queue")
.marshal().json(JsonLibrary.Jackson)
.to("mqseries:Another.Queue");
|
Using JSON
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Data Format With the GSON
...
Library
| Code Block |
|---|
|
// Let's turn Object messages into JSON then send to MQSeries
from("activemq:My.Queue")
.marshal().json(JsonLibrary.Gson)
.to("mqseries:Another.Queue");
|
...
As of Camel 2.10
When marshaling a POJO to JSON you might want to exclude certain fields from the JSON output. With Jackson you can use JSON views to accomplish this.
First create one or more marker classes.:
| Wiki Markup |
|---|
{snippet:id=marker|lang=java|url=camel/trunk/components/camel-jackson/src/test/java/org/apache/camel/component/jackson/Views.java} |
Use Second, use the marker classes with the
@JsonView annotation to include/exclude certain fields. The annotation also works on getters
.:| Wiki Markup |
|---|
{snippet:id=jsonview|lang=java|url=camel/trunk/components/camel-jackson/src/test/java/org/apache/camel/component/jackson/TestPojoView.java} |
Finally
, use the Camel
JacksonDataFormat to marshal the above POJO to JSON.
| Wiki Markup |
|---|
{snippet:id=format|lang=java|url=camel/trunk/components/camel-jackson/src/test/java/org/apache/camel/component/jackson/JacksonMarshalViewTest.java} |
Note: the height field is missing in the resulting JSON
:.| Code Block |
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{"age":30, "weight":70}
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