版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/hanjun0612/article/details/89678938
使用 CorsFilter 解决ajax跨域问题
直接在zuul的main下面,创建corsFilter就可以了。
@SpringBootApplication
@EnableZuulProxy
@EnableFeignClients
@ComponentScan(basePackages={"xxx"},lazyInit=true)
@ServletComponentScan(basePackages={"xxx"})
public class ZuulApp
{
public static void main( String[] args )
{
SpringApplication.run(ZuulApp.class, args);
}
@Bean
public CorsFilter corsFilter() {
final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
final CorsConfiguration config = new CorsConfiguration();
//允许跨域
config.setAllowCredentials(true);
//允许向该服务器提交请求的URI,*表示全部
config.addAllowedOrigin("*");
//允许访问的头信息,*表示全部
config.addAllowedHeader("*");
//允许的method
config.addAllowedMethod("OPTIONS");
config.addAllowedMethod("HEAD");
config.addAllowedMethod("GET");
config.addAllowedMethod("PUT");
config.addAllowedMethod("POST");
config.addAllowedMethod("DELETE");
config.addAllowedMethod("PATCH");
//免检时间,单位是秒
//config.setMaxAge(3600)
//Enabling CORS for the whole application
source.registerCorsConfiguration("/**", config);
return new CorsFilter(source);
}
}
这里看一下 prefilter 和 postfilter
@Component
public class PreFilter extends ZuulFilter {
public PreFilter() {
super();
}
@Override
public String filterType() {
return FilterConstants.PRE_TYPE;
}
@Override
public int filterOrder() {
return 0;
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() {
RequestContext ctx = RequestContext.getCurrentContext();
HttpServletRequest request = ctx.getRequest();
String requestUrl = request.getRequestURL().toString();
String requestUri = request.getRequestURI();
String zuul = requestUrl.substring(0,requestUrl.indexOf(requestUri)); // zuul根路径
ctx.addZuulRequestHeader("zuul", zuul);
return null;
}
}
@Component
public class PostFilter extends ZuulFilter {
protected static final String SEND_ERROR_FILTER_RAN = "sendErrorFilter.ran";
@Override
public String filterType() {
return FilterConstants.POST_TYPE;
}
@Override
public int filterOrder() {
return -1;
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() {
return null;
}
}