参考链接:

RequestMapping 是一个用来处理请求地址映射的注解，可用于类或方法上。用于类上，表示类中的所有响应请求的方法都是以该地址作为父路径。

RequestMapping 注解

  • value: 指定请求的实际地址，指定的地址可以是URI Template 模式
  • method: 指定请求的method类型，GET、POST、PUT、DELETE等
  • consumes: 指定处理请求的提交内容类型（Content-Type），例如application/json, text/html
  • produces: 指定返回的内容类型，仅当request请求头中的(Accept)类型中包含该指定类型才返回
  • params: 指定request中必须包含某些参数值是，才让该方法处理
  • headers: 指定request中必须包含某些指定的header值，才能让该方法处理请求

示例

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@Controller
@RequestMapping("/appointments")
public class AppointmentsController {

    private final AppointmentBook appointmentBook;

    @Autowired
    public AppointmentsController(AppointmentBook appointmentBook) {
        this.appointmentBook = appointmentBook;
    }

    @RequestMapping(method = RequestMethod.GET)
    public Map<String, Appointment> get() {
        return appointmentBook.getAppointmentsForToday();
    }

    @RequestMapping(path = "/{day}", method = RequestMethod.GET)
    public Map<String, Appointment> getForDay(@PathVariable @DateTimeFormat(iso=ISO.DATE) Date day, Model model) {
        return appointmentBook.getAppointmentsForDay(day);
    }

    @RequestMapping(path = "/new", method = RequestMethod.GET)
    public AppointmentForm getNewForm() {
        return new AppointmentForm();
    }

    @RequestMapping(method = RequestMethod.POST)
    public String add(@Valid AppointmentForm appointment, BindingResult result) {
        if (result.hasErrors()) {
            return "appointments/new";
        }
        appointmentBook.addAppointment(appointment);
        return "redirect:/appointments";
    }
}
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@GetMapping("/owners/{ownerId}")
public String findOwner(@PathVariable String ownerId, Model model) {
    Owner owner = ownerService.findOwner(ownerId);
    model.addAttribute("owner", owner);
    return "displayOwner";
}
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@RequestMapping("/spring-web/{symbolicName:[a-z-]+}-{version:\\d\\.\\d\\.\\d}{extension:\\.[a-z]+}")
public void handle(@PathVariable String version, @PathVariable String extension) {
    // ...
}
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@PostMapping(path = "/pets", consumes = "application/json")
public void addPet(@RequestBody Pet pet, Model model) {
    // implementation omitted
}
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@Controller  
@RequestMapping(value = "/pets/{petId}", method = RequestMethod.GET, produces="application/json")  
@ResponseBody  
public Pet getPet(@PathVariable String petId, Model model) {      
    // implementation omitted  
}
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@Controller
@RequestMapping("/owners/{ownerId}")
public class RelativePathUriTemplateController {

    @GetMapping(path = "/pets/{petId}", params = "myParam=myValue")
    public void findPet(@PathVariable String ownerId, @PathVariable String petId, Model model) {
        // implementation omitted
    }

}
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@Controller
@RequestMapping("/owners/{ownerId}")
public class RelativePathUriTemplateController {

    @GetMapping(path = "/pets", headers = "myHeader=myValue")
    public void findPet(@PathVariable String ownerId, @PathVariable String petId, Model model) {
        // implementation omitted
    }

}