RouteFilterFactory 是专为路由过滤拦截处理设计的接口。对应路由配置 filters
1、内置的路由过滤器
| 过滤器工厂 | 本置前缀 | 说明与示例 |
|---|---|---|
| AddRequestHeaderFilterFactory | AddRequestHeader= | 添加请求头 ( AddRequestHeader=Demo-Ver,1.0) |
| AddResponseHeaderFilterFactory | AddResponseHeader= | 添加响应头 ( AddResponseHeader=Demo-Ver,1.0) |
| PrefixPathFilterFactory | PrefixPath= | 附加路径前缀 ( PrefixPath=/app) |
| RedirectToFilterFactory | RedirectTo= | 跳转到 ( RedirectTo=302,http://demo.org/a,true) |
| RemoveRequestHeaderFilterFactory | RemoveRequestHeader= | 移除请求头 ( RemoveRequestHeader=Demo-Ver,1.0) |
| RemoveResponseHeaderFilterFactory | RemoveResponseHeader= | 移除响应头 ( RemoveResponseHeader=Demo-Ver,1.0) |
| StripPrefixFilterFactory | StripPrefix= | 移除路径前缀段数 ( StripPrefix=1) |
2、定制示例
- StripPrefix 过滤器定制示例（配置例：
StripPrefix=1）
@Component
public class StripPrefixFilterFactory implements RouteFilterFactory {
@Override
public String prefix() {
return "StripPrefix";
}
@Override
public ExFilter create(String config) {
return new StripPrefixFilter(config);
}
public static class StripPrefixFilter implements ExFilter {
private int parts;
public StripPrefixFilter(String config) {
if (Utils.isBlank(config)) {
throw new IllegalArgumentException("StripPrefixFilter config cannot be blank");
}
this.parts = Integer.parseInt(config);
}
@Override
public Completable doFilter(ExContext ctx, ExFilterChain chain) {
//目标路径重组
List<String> pathFragments = Arrays.asList(ctx.newRequest().getPath().split("/", -1));
String newPath = "/" + String.join("/", pathFragments.subList(parts + 1, pathFragments.size()));
ctx.newRequest().path(newPath);
return chain.doFilter(ctx);
}
}
}
