为什么我在 spring 启动时提交对受保护资源的请求时出现 cors 错误？

Question

我已经使用 jwt 令牌在我的应用程序中实现了 spring 安全性，我在 spring 安全性中有以下配置：

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(        
        prePostEnabled = true)  
public class MSSecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    UserDetailsService userDetailsService;
    
    @Autowired
    private AuthEntryPointJwt unauthorizedHandler;
    
    @Bean
    public AuthTokenFilter authenticationJwtTokenFilter() {
        return new AuthTokenFilter();
    }
    
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        
        auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
    }
    
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
    
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
        
    @Override
    public void configure(WebSecurity web) throws Exception {
         web.ignoring().antMatchers("/companies/UnAuth/**");
    }
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().and().csrf().disable()
            .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()           
            .authorizeRequests()
            .antMatchers("/companies/Auth/**").authenticated()
            .antMatchers("/companies/Auth/Update").authenticated()
            .antMatchers("/companies/Auth/Delete").authenticated();
        
        http.addFilterBefore(authenticationJwtTokenFilter(), UsernamePasswordAuthenticationFilter.class);
    }

我在相关控制器上有以下cors注释：

@CrossOrigin(origins = "http://localhost:4200", maxAge = 3600)
@RestController
@RequestMapping("/companies")
@Slf4j
public class CompanyController {

我尝试将以下内容添加到 angular 中的 http 拦截器：

authReq.headers.set("Access-Control-Allow-Origin", "http://localhost:4200");
    authReq.headers.set("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");

当从 Angular 9 应用程序提交请求时，我无法通过安全性并且出现 cors 错误：

`Access to XMLHttpRequest at 'http://localhost:9001/companies/Auth/Update' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resourc`e.

Answer 1

请求不包含 'Access-Control-Allow-Origin' header，您应该在 header 中添加它，它允许远程计算机访问您通过 REST 发送的内容。

如果您想允许所有远程主机访问您的 api 内容，您应该这样添加：

Access-Control-Allow-Origin: *

您也可以指定一个特定的主机：

Access-Control-Allow-Origin: http://example.com

您应该在 pom.xml 文件中修改您的依赖项并允许 CORS headers，除了 Access-Control-Allow-Origin headers 还有一些您将需要添加到请求中，请在此处查找更多信息：

https://spring.io/blog/2015/06/08/cors-support-in-spring-framework

为什么我在 spring 启动时提交对受保护资源的请求时出现 cors 错误？

Why I get cors error when submitting a request to secured resource in spring boot?

spring-security

spring-boot