open:spring4-json [EL]

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알아야 할 것
- @JsonView
- @RESTCONTROLLER
- JAVA Config


@Controller
public class clazz{
  @RequestMapping()
  @ResponseBody
}

@RestController



[이곳](http://www.mkyong.com/spring-mvc/spring-4-mvc-ajax-hello-world-example/)을 참조한다. 

pom.xml 파일 수정.

```xml
        <jackson.version>2.6.3</jackson.version>
        <!-- Need this for json to/from object -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson.version}</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
```

### 참고 

- http://milo.tistory.com/category/Spring
- [latest-jackson-integration-improvements-in-spring](https://spring.io/blog/2014/12/02/latest-jackson-integration-improvements-in-spring)
- [Optimizing Spring Framework for App Engine Applications](https://cloud.google.com/appengine/articles/spring_optimization)