基于Netty实现的RESTful框架--netty-rest-server

//默认为单例，singleton = false表示启用多例。
//@RestController(singleton = false)
@RestController
@RequestMapping("/users")
public class UserController {
    
    @GetMapping("")
    @JsonResponse
    public ResponseEntity<User> listUser() {
        // 查询用户
        User user = new User();
        user.setId(1);
        user.setName("Leo");
        user.setAge((short)18);
        return ResponseEntity.ok().build(user);
    }
    
    @PutMapping("/{id}")
    public ResponseEntity<?> putMethod(@PathVariable("id") int id, @RequestBody String body) {
        // 更新用户
        return ResponseEntity.status(HttpStatus.CREATED).build();
    }
    
    @DeleteMapping("/{id}")
    public ResponseEntity<?> deleteMethod(@PathVariable int id) {
        // 删除用户
        return ResponseEntity.status(HttpStatus.NO_CONTENT).build();
    }
    
    @PostMapping("")
    public ResponseEntity<?> postMethod(@RequestBody String body) {
        // 添加用户
        JSONObject json = JSONObject.parseObject(body);
        User user = new User();
        user.setId(json.getIntValue("id"));
        user.setName(json.getString("name"));
        user.setAge(json.getShortValue("age"));
        return ResponseEntity.status(HttpStatus.CREATED).build(user);
    }

}

public final class CorsInterceptor implements Interceptor {

    @Override
    public boolean preHandle(FullHttpRequest request, HttpResponse response) throws Exception {
        // 使用axios发送cookie，这里不能用*，需要使用Web前端地址，如：http://localhost:8080
        // response.getHeaders().put("Access-Control-Allow-Origin", "*");
        response.getHeaders().put("Access-Control-Allow-Origin", System.getProperty("http.origin"));
        response.getHeaders().put("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE, PATCH");
        response.getHeaders().put("Access-Control-Max-Age", "3600");
        response.getHeaders().put("Access-Control-Allow-Headers", "Content-Type,X-Token");
        response.getHeaders().put("Access-Control-Allow-Credentials", "true");
        return true;
    }

    @Override
    public void postHandle(FullHttpRequest request, HttpResponse response) throws Exception {
    }

    @Override
    public void afterCompletion(FullHttpRequest request, HttpResponse response) {
    }

}

    @Test
    public void test() {
        // 忽略指定url
        WebServer.getIgnoreUrls().add("/favicon.ico");
        
        // 全局异常处理
        WebServer.setExceptionHandler(new ExceptionController());
        
        // 设置监听端口号
        WebServer server = new WebServer(2006);
        
        // 设置Http最大内容长度（默认 为10M）
        server.setMaxContentLength(1024 * 1024 * 50);
        
        // 设置Controller所在包
        server.setControllerBasePackage("org.leo.web.controller");
        
        // 添加拦截器，按照添加的顺序执行。
        // 跨域拦截器
        server.addInterceptor(new CorsInterceptor(), "/不用拦截的url");
        
        try {
            server.start();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }