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attempt at java example (#2486) 

Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>
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Hannah Hunter 2022-06-02 13:58:11 -05:00 committed by GitHub
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daprdocs/content/en/developing-applications/building-blocks/pubsub/subscription-methods.md
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@ -204,7 +204,19 @@ public async Task<ActionResult<Stock>> HandleCheckout(Checkout checkout, [FromSe
{{% codetab %}}
```java
private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
@Topic(name = "checkout", pubsubName = "order_pub_sub")
@PostMapping(path = "/orders")
public Mono<Void> handleMessage(@RequestBody(required = false) CloudEvent<String> cloudEvent) {
return Mono.fromRunnable(() -> {
try {
System.out.println("Subscriber received: " + cloudEvent.getData());
System.out.println("Subscriber received: " + OBJECT_MAPPER.writeValueAsString(cloudEvent));
} catch (Exception e) {
throw new RuntimeException(e);
}
});
```
{{% /codetab %}}