Spring Boot·CORS阻止删除请求

Question

每当我尝试使用axios发送删除endpoint的请求时，都会出现以下错误:

通过CORS策略阻止从源http://localhost:3000在http://localhost:8080/api/payment_card/delete/1234123412343433处访问XMLHttpRequest：对预检请求的响应未通过权限改造检查：请求的资源上不存在“Access-Control-Allo-Origin”标头

Axios 请求构建如下：

      .delete(
        "http://localhost:8080/api/payment_card/delete/" +  selectedCardId ,
        {
          headers: {
            Authorization: `Bearer ${token}`,
            "Access-Control-Allow-Origin": "**"
          },
        }
      )
      .then(function (response) {
        console.log(response);
      })
      .catch(function (error) {
        console.log(error);
      });```
My java WebSecurityConfig stays as follow:

Override protected void configure(HttpSecurity http) throws Exception {

        http = http.cors().and().csrf().disable();
        http.cors().configurationSource(request -> new CorsConfiguration().applyPermitDefaultValues());

        // Set session management to stateless
        http = http
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and();
        // Set unauthorized requests exception handler
        http = http
                .exceptionHandling()
                .authenticationEntryPoint(new AuthException())
                .and();
        http.addFilterBefore(requestFilter, UsernamePasswordAuthenticationFilter.class);
    }

在控制器中，映射是:

    public ResponseEntity<PaymentCard> deletePaymentCard(@PathVariable Long cardNumber) {
        PaymentCard pCard = paymentCardService.deletePaymentCard(cardNumber);
        return new ResponseEntity<>(pCard, HttpStatus.OK);
    }

我尝试了许多解决方案，比如添加@CrossOrigin注释，制作CorsFilter，但似乎没有任何帮助。最终，我在控制器中将DeleteMap更改为GetMap，但我觉得超文本传输协议策略可以随时将我拘留：（感谢您的时间和提前帮助。

Answer 1

我可以有一个用以下方法实现过滤器的类

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class CorsFilter implements Filter {

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        final HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Allow-Headers", "Authorization, Content-Type");
        response.setHeader("Access-Control-Max-Age", "3600");
        if (HttpMethod.OPTIONS.name().equalsIgnoreCase(((HttpServletRequest) req).getMethod())) {
            response.setStatus(HttpServletResponse.SC_OK);
        } else {
            chain.doFilter(req, res);
        }
    }

    @Override
    public void destroy() {
    }

    @Override
    public void init(FilterConfig config) throws ServletException {
    }
}

Answer 2

corscoConfiguration。applyPermitDefaultValues（）不允许假设的所有方法，只允许以下方法：GET、HEAD和POST。

要允许DELETE方法，您可以使用以下代码：

http.cors().configurationSource(c -> {
    CorsConfiguration corsCfg = new CorsConfiguration();

    // All origins, or specify the origins you need
    corsCfg.addAllowedOriginPattern( "*" );

    // If you really want to allow all methods
    corsCfg.addAllowedMethod( CorsConfiguration.ALL ); 

    // If you want to allow specific methods only
    // corsCfg.addAllowedMethod( HttpMethod.GET );     
    // corsCfg.addAllowedMethod( HttpMethod.DELETE );
    // ...
});

如果显式配置corscoConfiguration，我建议不要使用applyPermitDefaultValues（），而是显式指定所有需要的方法。然后，没有人需要记住＜code＞applyPermitDefaultValues（）＜/code＞到底启用了哪些方法，这样的代码更容易理解。