vue+spring boot解决跨域的方法

@Configuration
public class ShiroConfig {

    @Bean
    public Realm realm() {
        return new AdminAuthorizingRealm();
    }

    @Bean
    public ShiroFilterFactoryBean shiroFilterFactoryBean(SecurityManager securityManager) {
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
        filterChainDefinitionMap.put("/admin/auth/login", "anon");
        filterChainDefinitionMap.put("/admin/auth/401", "anon");
        filterChainDefinitionMap.put("/admin/auth/index", "anon");
        filterChainDefinitionMap.put("/admin/auth/403", "anon");
        filterChainDefinitionMap.put("/admin/index/index", "anon");

        filterChainDefinitionMap.put("/admin/**", "authc");
        shiroFilterFactoryBean.setLoginUrl("/admin/auth/401");
        shiroFilterFactoryBean.setSuccessUrl("/admin/auth/index");
        shiroFilterFactoryBean.setUnauthorizedUrl("/admin/auth/403");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    @Bean
    public SessionManager sessionManager() {

        return new AdminWebSessionManager();
    }

    @Bean
    public DefaultWebSecurityManager defaultWebSecurityManager() {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setRealm(realm());
        securityManager.setSessionManager(sessionManager());
        return securityManager;
    }

    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager) {
        AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor =
                new AuthorizationAttributeSourceAdvisor();
        authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
        return authorizationAttributeSourceAdvisor;
    }

    @Bean
    @DependsOn("lifecycleBeanPostProcessor")
    public static DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator creator = new DefaultAdvisorAutoProxyCreator();
        creator.setProxyTargetClass(true);
        return creator;
    }
}

####求大佬解释一下这段代码的意思

index.js 加入如下配置
proxyTable: {
'/api': {
target: 'http://localhost:8090',
changeOrigin: true,
pathRewrite: {
'^/api': ''
}
}
},
访问的请求前面多加个/api

你的这段代码不是跨域的问题 而是拦截问题。

你这是Shiro啊，没看见跨域的啊