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2012-11-28T11:11:27.767
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Take a look on the server side code as well. You will notice that the /mapping/produces URL is mapped to a handler method in MappingController: <pre><code>@RequestMapping(value="/mapping/produces", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE) public @ResponseBody JavaBean byProducesJson() { return new JavaBean(); } </code></pre> Two important things here: <ul> <li>by placing the @ResponseBody annotation on the return type Spring will serialize the returned JavaBean instance directly into the HTTP response</li> <li>produces=MediaType.APPLICATION_JSON_VALUE will tell Spring that JSON format should be used when serializing the returned object</li> </ul> As you see this controller method just returns a new instance of the <a href="https://github.com/SpringSource/spring-mvc-showcase/blob/master/src/main/java/org/springframework/samples/mvc/mapping/JavaBean.java" rel="nofollow">JavaBean class</a> which has the following default properties: <pre><code>public class JavaBean { ... private String foo = "bar"; private String fruit = "apple"; ... } </code></pre> As a result you will get the mentioned {"foo":"bar","fruit":"apple"} JSON in the response. also from the logs you can find out which controller method was handling your request when calling a URL: <pre><code>01:27:38 [tomcat-http--28] RequestMappingHandlerMapping - Looking up handler method for path /mapping/produces 01:27:38 [tomcat-http--28] RequestMappingHandlerMapping - Returning handler method [public org.springframework.samples.mvc.mapping.JavaBean org.springframework.samples.mvc.mapping.MappingController.byProducesJson()] </code></pre>
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1. POSpring MVC, handlign a JSON request...I have some proble to understand
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1. POSpring MVC, handlign a JSON request...I have some proble to understand
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1. COThank you very much, now it is clear
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