SpringBoot 跨域 Access-Control-Allow-Origin 问题

最新推荐文章于 2024-11-02 13:27:01 发布

zhao1949

最新推荐文章于 2024-11-02 13:27:01 发布

阅读量6.4k

点赞数 2

文章标签： springboot

本文介绍了两种在Spring Boot应用中实现跨域请求的方法。一种是通过创建并配置一个自定义的过滤器来设置响应头，允许所有来源的请求，并指定允许的HTTP方法及头部信息等；另一种则是通过扩展`WebMvcConfigurerAdapter`类来配置跨域映射，允许所有来源的请求，支持认证及指定的HTTP方法，并设置预检请求的有效期。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

https://blog.youkuaiyun.com/taoism_jerry/article/details/79695336

**************************************************************

方式一：

在过滤器中设置响应头

@Component
public class CorsFilter implements Filter {

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

        HttpServletRequest reqs = (HttpServletRequest) req;

        // response.setHeader("Access-Control-Allow-Origin",reqs.getHeader("Origin"));
        response.setHeader("Access-Control-Allow-Origin","*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PATCH, DELETE, PUT");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {}

    @Override
    public void destroy() {}

方式二：

对SpringBoot进行配置

@Configuration  
public class CorsConfig extends WebMvcConfigurerAdapter {  

    @Override  
    public void addCorsMappings(CorsRegistry registry) {  
        registry.addMapping("/**")  
                .allowedOrigins("*")  
                .allowCredentials(true)  
                .allowedMethods("GET", "POST", "DELETE", "PUT")  
                .maxAge(3600);  
    }  

}