SpringBootDemo

package haha.controller; import haha.domain.City; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import haha.service.CityService; import java.util.List; /** * Created by bysocket on 07/02/2017. */ @RestController //是一类特殊的@Controller，它的返回值直接作为HTTP Response的Body部分返回给浏览器。 //@Controller并非直接将字符串返回给浏览器，而是寻找名字为返回值的模板进行渲染 public class CityController { @Autowired private CityService cityService; //@RequestMapping注解表明该方法处理那些URL对应的HTTP请求，也就是我们常说的URL路由（routing)，请求的分发工作是有Spring完成的。 //URL中的变量——PathVariable //例如@RequestMapping("/users/{username}") //URL中的变量可以用{variableName}来表示，同时在方法的参数中加上@PathVariable("variableName")，那么当请求被转发给该方法处理时，对应的URL中的变量会被自动赋值给被@PathVariable注解的参数 @RequestMapping(value = "/api/city/{id}", method = RequestMethod.GET) public City findOneCity(@PathVariable("id") Long id) { return cityService.findCityById(id); } @RequestMapping(value = "/api/city", method = RequestMethod.GET) public List<City> findAllCity() { return cityService.findAllCity(); } @RequestMapping(value = "/api/city", method = RequestMethod.POST) public void createCity(@RequestBody City city) { cityService.saveCity(city); } @RequestMapping(value = "/api/city", method = RequestMethod.PUT) public void modifyCity(@RequestBody City city) { cityService.updateCity(city); } @RequestMapping(value = "/api/city/{id}", method = RequestMethod.DELETE) public void modifyCity(@PathVariable("id") Long id) { cityService.deleteCity(id); } }