SpringBoot请求参数相关注解说明小结

@RestController
public class BookController {
    @GetMapping("/book/{id}")
    public Integer getBook(@PathVariable("id") Integer id) {
        // 打印参数
        System.out.println(id);
        return id;
    }
}

@RestController
public class BookController {
    @GetMapping("/ua")
    public String getUA(@RequestHeader("User-Agent") String userAgent) {
        // 打印参数
        System.out.println(userAgent);
        return userAgent;
    }
}

@RestController
public class BookController {
    @GetMapping("/book")
    public Integer getBook2(@RequestParam("id") Integer id) {
        // 打印参数
        System.out.println(id);
        return id;
    }
}

@RestController
public class BookController {
    @GetMapping("/cookie_value")
    public String getCV(@CookieValue("ruid") String ruid) {
        // 打印参数
        System.out.println(ruid);
        return ruid;
    }
}

@RestController
public class BookController {
    @PostMapping("/book")
    public Book saveBook(@RequestBody Book book) {
        // 打印参数
        System.out.println(book);
        return book;
    }
}