SpringBoot 跨域 Access

https://blog.csdn.net/taoism\_jerry/article/details/79695336

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方式一：
在过滤器中设置响应头

1@Component
2public class CorsFilter implements Filter {
3
4    @Override
5    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
6        HttpServletResponse response = (HttpServletResponse) res;
7
8        HttpServletRequest reqs = (HttpServletRequest) req;
9
10        // response.setHeader("Access-Control-Allow-Origin",reqs.getHeader("Origin"));
11        response.setHeader("Access-Control-Allow-Origin","*");
12        response.setHeader("Access-Control-Allow-Credentials", "true");
13        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PATCH, DELETE, PUT");
14        response.setHeader("Access-Control-Max-Age", "3600");
15        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
16        chain.doFilter(req, res);
17    }
18
19    @Override
20    public void init(FilterConfig filterConfig) {}
21
22    @Override
23    public void destroy() {}

方式二：
对SpringBoot进行配置

1@Configuration  
2public class CorsConfig extends WebMvcConfigurerAdapter {  
3
4    @Override  
5    public void addCorsMappings(CorsRegistry registry) {  
6        registry.addMapping("/**")  
7                .allowedOrigins("*")  
8                .allowCredentials(true)  
9                .allowedMethods("GET", "POST", "DELETE", "PUT")  
10                .maxAge(3600);  
11    }  
12
13}