标签:网站 actor family name new DDM ram tor ESS
跨域(CORS)是指不同域名之间相互访问。跨域,指的是浏览器不能执行其他网站的脚本,它是由浏览器的同源策略所造成的,是浏览器对于JavaScript所定义的安全限制策略。
也就是如果在A网站中,我们希望使用Ajax来获得B网站中的特定内容,如果A网站与B网站不在同一个域中,那么就出现了跨域访问问题。
同域:
1.@CrossOrigin注解
2.WebMvcConfigurer
@Configuration
public class CorsConfiguration {
@Bean
public WebMvcConfigurer corsConfigurer() {
return new WebMvcConfigurer() {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOrigins("*")
.allowCredentials(true)
.allowedMethods("POST", "GET", "PUT", "OPTIONS", "DELETE")
.allowedOrigins("*");
}
};
}
}
3.使用Filter方式进行设置使用Filter过滤器来过滤服务请求,向请求端设置Response Header(响应头部)的Access-Control-Allow-Origin属性声明允许跨域访问。
@WebFilter
public class CorsFilter implements Filter {
// 日志对象
private static Logger logger = LoggerFactory.getLogger(CorsFilter.class);
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse) res;
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
chain.doFilter(req, res);
}
public void init(FilterConfig filterConfig) {
// something init
}
public void destroy() {
// destroy something
}
}
4.继承使用Spring Web中的CorsFilter
import org.springframework.stereotype.Component; import org.springframework.web.cors.CorsConfiguration; import org.springframework.web.cors.UrlBasedCorsConfigurationSource; import org.springframework.web.filter.CorsFilter; import java.util.Arrays; /** * 跨域访问配置 * * @author Garyond */ @Component public class CustomCorsFilter extends CorsFilter { public CustomCorsFilter() { super(configurationSource()); } private static UrlBasedCorsConfigurationSource configurationSource() { CorsConfiguration config = new CorsConfiguration(); config.setAllowCredentials(true); config.addAllowedOrigin("*"); config.addAllowedHeader("*"); config.setMaxAge(36000L); config.setAllowedMethods(Arrays.asList("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")); UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); source.registerCorsConfiguration("/v1/**", config); return source; } }
标签:网站 actor family name new DDM ram tor ESS
原文地址:https://www.cnblogs.com/michaelcnblogs/p/13287802.html