Spring Data keyvalue example 2017-05-15 21:31
Spring Data KeyValue framework use java.util.Map to store data in memory. I will show you how use it in this page.
pom file
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-keyvalue</artifactId>
<version>1.2.3.RELEASE</version>
</dependency>
Java code
@SpringBootApplication
@EnableMapRepositories
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
@Controller
@RequestMapping(path = "/spring-data-keyvalue")
public class MainController {
@Autowired
private PersonRepository personRepository;
@GetMapping(path = "/add")
@ResponseBody
public String addNewUser(@RequestParam String name, @RequestParam String chatId) {
Person person = new Person();
person.setName(name);
person.setChatId(Integer.valueOf(chatId));
personRepository.save(person);
return "Saved";
}
@GetMapping(path = "/all")
@ResponseBody
public Iterable<Person> getAllPerson() {
return personRepository.findAll();
}
}
public class Person {
@Id
private Integer id;
private String name;
private Integer chatId;
//getter and setter method
}
public interface PersonRepository extends CrudRepository<Person, Long> {
}
Run the main method to start Spring Boot.
Access "http://localhost:8080/spring-data-keyvalue/add?name=henryxi1&chatId=1" to save the data in memory.
Access "http://localhost:8080/spring-data-keyvalue/all" to get the data. The output is like following.
[{"id":1995731822,"name":"henryxi1","chatId":1}]
EOF