Spring @CrossOrigin 不适用于 DELETE 方法

Question

Spring @CrossOrigin 注释不适用于 DELETE 方法。

示例代码(在 Groovy 中):

@CrossOrigin
@RestController
@RequestMapping('/rest')
class SpringController {

    @RequestMapping(value = '/{fileName}', RequestMethod.DELETE)
    void deleteFile(@PathVariable fileName) {
        // logic
    }

}

对于这段代码，我得到了异常:

XMLHttpRequest cannot load http://localhost:8080/rest/filename.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:4200' is therefore not allowed access. The response had HTTP status code 404.

笔记:

我在 Chrome 58 和 Postman 4.10.7

中测试了它

根据 https://spring.io/guides/gs/rest-service-cors/经过
默认@CrossOrigin 只允许 GET、HEAD 和 POST 跨域
要求。虽然指定 @CrossOrigin(methods =
[RequestMethod.GET, RequestMethod.DELETE])没有帮助

为简洁起见，我省略了一些代码。实际 Controller 也有相同映射的 GET 请求，delete 方法有返回类型并产生 JSON 响应，以及我认为不会影响问题的其他小东西。

Answer 1

@Configuration
public class AppConfig extends WebMvcConfigurerAdapter {
  @Override
  public void addCorsMappings(CorsRegistry registry) {
      registry.addMapping("your cross origin url")
            .allowedOrigins("your cross origin host/url")
            .allowedHeaders("Access-Control-Allow-Origin", "*")
            .allowedHeaders("Access-Control-Allow-Headers", "Content-Type,x-requested-with").maxAge(20000)
            .allowCredentials(false)
            .allowedMethods("DELETE");
 }
}

// in your controller
@RequestMapping(value = '/{fileName:.+}', RequestMethod.DELETE)
void deleteFile(@PathVariable fileName) {
    // your custom logic
}