java-未正确启用Spring Boot Data Rest CORS的OPTIONS / DELETE

我有一个非常简单的例子,我无法上班.

我有为数据库和存储库建模的域.

public interface MyTestRepository extends CrudRepository<MyTest, Integer> {
}

我用http://resttesttest.com/进行了测试.对于GET方法,它返回我的JSON REST信息没有任何问题.

我可以查询端点http://localhost:8080/mytest/1,然后从数据库中获取id = 1的信息.

但是,当我尝试使用DELETE选项时,就会出现问题.如果我在http://localhost:8080/mytest/1上运行DELETE,我将得到

Response to preflight request doesn’t pass access control check: No
‘Access-Control-Allow-Origin’ header is present on the requested
resource. Origin ‘07003’ is therefore not allowed
access. The response had HTTP status code 403.

我最初尝试了以下方法,但是发现我无法使用它,因为我正在使用Spring-data-Rest. https://jira.spring.io/browse/DATAREST-573

@Override
public void addCorsMappings(CorsRegistry registry) {
    registry.addMapping("/**")
        .allowedOrigins("*")
        .allowedMethods("*")
        .allowedHeaders("*")
        .allowCredentials(true).maxAge(3600);
}

我四处搜寻,发现了这个.

How to configure CORS in a Spring Boot + Spring Security application?

所以我加了

@Bean
public FilterRegistrationBean corsFilter() {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    CorsConfiguration config = new CorsConfiguration();
    config.setAllowCredentials(true);
    config.addAllowedOrigin("*");
    config.addAllowedHeader("*");
    config.addAllowedMethod("*");
    source.registerCorsConfiguration("/**", config);
    FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
    bean.setOrder(0);
    return bean;
}

我也找到了这个线程.

Spring Data Rest and Cors

并尝试了以下代码,但没有运气.

@Bean
public FilterRegistrationBean corsFilter() {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    CorsConfiguration config = new CorsConfiguration();
    config.setAllowCredentials(true);
    config.addAllowedOrigin("*");
    config.addAllowedHeader("*");
    config.addAllowedMethod("OPTIONS");
    config.addAllowedMethod("HEAD");
    config.addAllowedMethod("GET");
    config.addAllowedMethod("PUT");
    config.addAllowedMethod("POST");
    config.addAllowedMethod("DELETE");
    config.addAllowedMethod("PATCH");
    source.registerCorsConfiguration("/**", config);
    // return new CorsFilter(source);
    final FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
    bean.setOrder(0);
    return bean;
}

我添加了一个catch all进行测试,这应该允许所有CORS明智地通过,但是即使我有“ *”,我仍然保持No’Access-Control-Allow-Origin’.

在这一点上,我不知道为什么我的预检请求没有通过访问控制检查.

curl发出删除文件没有问题.

编辑：

最终找到了确切的解决方案.我不确定我所拥有的与这种方法之间的区别,但这似乎可行.

import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Note this is a very simple CORS filter that is wide open.
 * This would need to be locked down.
 * Source: https://stackoverflow.com/questions/39565438/no-access-control-allow-origin-error-with-spring-restful-hosted-in-pivotal-web
 */
@Component
public class CORSFilter implements Filter {

    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
        chain.doFilter(req, res);
    }

    public void init(FilterConfig filterConfig) {}

    public void destroy() {}

}

解决方法:

这是我用作允许所有CORS servlet过滤器的内容：

public class PermissiveCORSFilter implements Filter {

    private static final Logger LOGGER = LoggerFactory.getLogger(PermissiveCORSFilter.class);
    private static final Pattern PATTERN = Pattern.compile("^[a-zA-Z0-9 ,-_]*$");

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        HttpServletRequest request = (HttpServletRequest) req;

        String origin;
        String credentialFlag;
        if (request.getHeader("Origin") == null) {
            origin = "*";
            credentialFlag = "false";
         } else {
            origin = request.getHeader("Origin");
            credentialFlag = "true";
         }

        // need to do origin.toString() to avoid findbugs error about response splitting        
        response.addHeader("Access-Control-Allow-Origin", origin.toString());
        response.setHeader("Access-Control-Allow-Credentials", credentialFlag);
        if ("OPTIONS".equals(request.getMethod())) {
            LOGGER.info("Received OPTIONS request from origin:" + request.getHeader("Origin"));
            response.setHeader("Access-Control-Allow-Methods", "GET,POST,HEAD,OPTIONS,PUT,DELETE");
            response.setHeader("Access-Control-Max-Age", "3600");
            String headers = StringUtils.trimToEmpty(request.getHeader("Access-Control-Request-Headers"));
            if (!PATTERN.matcher(headers).matches()) {
                throw new ServletException("Invalid value provided for 'Access-Control-Request-Headers' header");
            }
            response.setHeader("Access-Control-Allow-Headers", headers); // allow any headers
        }
        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {
        // Do nothing
    }

    @Override
    public void destroy() {
        // Do nothing
    }

标签：java,spring,rest,spring-data-rest,spring-mvc
来源： https://codeday.me/bug/20191011/1893415.html