has been blocked by CORS policy: Response to preflight request doesn't pass

问题

I have created one app using angular and springboot for basic authentication with spring security but i am getting 401 error ..i am novice in springboot

@Configuration
@EnableWebSecurity
public class SpringSecurityConfigurationBasicAuth extends WebSecurityConfigurerAdapter{ 

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf().disable()
            .authorizeRequests()
            .antMatchers(HttpMethod.OPTIONS,"/**").permitAll()
                .anyRequest().authenticated()
                .and()
            //.formLogin().and()
            .httpBasic();
    }
}

"Access to XMLHttpRequest at 'http://localhost:8080/hello-world/path-variable/MSD' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status."

回答1:

I also had the same issue with angulat7 and spring boot I resolved by adding the following configuration

 @Configuration
    public class SpringDataRestConfiguration extends RepositoryRestConfigurerAdapter {

        @Override
        public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {

        config.getCorsRegistry().addMapping("/**").allowedOrigins("*").allowedHeaders("*").allowedMethods("GET", "POST", "PATCH", "PUT", "DELETE");
        }

    }

回答2:

You could try the following At the top of the controller, you can add @CrossOrigin(origins = "*", allowedHeaders = "*") or customise if required

...
@CrossOrigin(origins = "*", allowedHeaders = "*")
@RestController
public class UserController {
    // Methods
}
...

Please try above solution and let me know if this doesnt work

EDIT 1: You could also try to create a filter with CORS options:

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

@Component
@Order(1)
public class SimpleCORSFilter implements Filter {

    private final Logger log = LoggerFactory.getLogger(SimpleCORSFilter.class);

    public SimpleCORSFilter() {
        log.info("SimpleCORSFilter init");
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {

        // HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;

        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With, remember-me");

        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {
    }

    @Override
    public void destroy() {
    }

}

Please try with the filters method and let me know if it doesn't work

来源：https://stackoverflow.com/questions/56946280/has-been-blocked-by-cors-policy-response-to-preflight-request-doesnt-pass

标签

java

Spring

spring-boot

authentication

angular7