Posílání JSON objektů pomocí Spring Web MVC

1. Přidejte do pom.xml tyto dependency:

<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-core</artifactId>
 <version>2.2.1</version>
</dependency>
<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-databind</artifactId>
 <version>2.2.1</version>
</dependency>
<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-annotations</artifactId>
 <version>2.2.1</version>
</dependency>

2. V Servlet context konfiguraci musí být:

<mvc:annotation-driven />
<context:component-scan base-package="cz.java.skoleni.controller" />

3. Controller:

@Controller
@RequestMapping("/rest/items")
public class RestItemController {
 @Autowired
 private ItemService itemService;
 @RequestMapping("/json-item-detail/{id}")
 @ResponseBody
 public Item jsonItemDetail(@PathVariable int id) {
 return itemService.findOne(id);
 }
}

4. POJO třída:

public class Item implements Serializable {
 private String name;
 public String getName() {
  return this.name;
 }
 public void setName(String name) {
  this.name = name;
 }
}