spring cloud gateway支持restful调用

sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/bean/SopConstants.java

@@ -20,6 +20,8 @@ public class SopConstants {
 
     public static final String REDIRECT_VERSION_KEY = "r-version";
 
+    public static final String REDIRECT_PATH_KEY = "r-path";
+
     /**
      * 在拦截器中调用获取参数：
      * String cachedBody = (String)exchange.getAttribute(SopConstants.CACHE_REQUEST_BODY_OBJECT_KEY);

sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/filter/LoadBalancerClientExtFilter.java

@@ -1,5 +1,6 @@
 package com.gitee.sop.gatewaycommon.gateway.filter;
 
+import com.gitee.sop.gatewaycommon.bean.SopConstants;
 import com.gitee.sop.gatewaycommon.util.RouteUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.cloud.gateway.filter.GatewayFilterChain;
@@ -33,7 +34,7 @@ public class LoadBalancerClientExtFilter implements GlobalFilter, Ordered {
     @Override
     public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
         Route route = exchange.getAttribute(GATEWAY_ROUTE_ATTR);
-        String path = this.findPath(route);
+        String path = this.findPath(exchange, route);
         if (StringUtils.hasLength(path)) {
             URI url = exchange.getAttribute(GATEWAY_REQUEST_URL_ATTR);
             UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUri(url);
@@ -44,7 +45,11 @@ public class LoadBalancerClientExtFilter implements GlobalFilter, Ordered {
         return chain.filter(exchange);
     }
 
-    protected String findPath(Route route) {
+    protected String findPath(ServerWebExchange exchange, Route route) {
+        String path = exchange.getAttribute(SopConstants.REDIRECT_PATH_KEY);
+        if (path != null) {
+            return path;
+        }
         URI routeUri = route.getUri();
         String uriStr = routeUri.toString();
         return RouteUtil.findPath(uriStr);

sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/route/GatewayRouteRepository.java

@@ -5,15 +5,13 @@ import com.gitee.sop.gatewaycommon.bean.TargetRoute;
 import com.gitee.sop.gatewaycommon.manager.RouteRepository;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
-import org.springframework.cloud.gateway.event.PredicateArgsEvent;
 import org.springframework.cloud.gateway.route.RouteDefinitionRepository;
-import org.springframework.context.ApplicationEventPublisher;
-import org.springframework.context.ApplicationEventPublisherAware;
+import org.springframework.util.AntPathMatcher;
+import org.springframework.util.PathMatcher;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
 import java.util.Collection;
-import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -29,6 +27,8 @@ import static java.util.Collections.synchronizedMap;
 @Slf4j
 public class GatewayRouteRepository implements RouteDefinitionRepository, RouteRepository<GatewayTargetRoute> {
 
+    private PathMatcher pathMatcher = new AntPathMatcher();
+
     private final Map<String, GatewayTargetRoute> routes = synchronizedMap(new LinkedHashMap<>());
 
     @Override
@@ -57,9 +57,21 @@ public class GatewayRouteRepository implements RouteDefinitionRepository, RouteR
         if (id == null) {
             return null;
         }
-        return routes.get(id);
+        GatewayTargetRoute gatewayTargetRoute = routes.get(id);
+        if (gatewayTargetRoute != null) {
+            return gatewayTargetRoute;
+        }
+        for (Map.Entry<String, GatewayTargetRoute> entry : routes.entrySet()) {
+            // /food/get/?id?
+            String pattern = entry.getKey();
+            if (StringUtils.containsAny(pattern, "{") && this.pathMatcher.match(pattern, id)) {
+                return entry.getValue();
+            }
+        }
+        return null;
     }
 
+
     @Override
     public Collection<GatewayTargetRoute> getAll() {
         return routes.values();

sop-common/sop-gateway-common/src/main/java/com/gitee/sop/gatewaycommon/gateway/route/NameVersionRoutePredicateFactory.java

@@ -1,10 +1,13 @@
 package com.gitee.sop.gatewaycommon.gateway.route;
 
+import com.gitee.sop.gatewaycommon.bean.SopConstants;
 import com.gitee.sop.gatewaycommon.gateway.ServerWebExchangeUtil;
 import com.gitee.sop.gatewaycommon.param.ParamNames;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.cloud.gateway.handler.predicate.AbstractRoutePredicateFactory;
+import org.springframework.util.AntPathMatcher;
 import org.springframework.util.CollectionUtils;
+import org.springframework.util.PathMatcher;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.server.ServerWebExchange;
 
@@ -28,6 +31,8 @@ public class NameVersionRoutePredicateFactory extends AbstractRoutePredicateFact
     private static final String PARAM_KEY = "param";
     private static final String REGEXP_KEY = "regexp";
 
+    private PathMatcher pathMatcher = new AntPathMatcher();
+
     public NameVersionRoutePredicateFactory() {
         super(Config.class);
     }
@@ -57,7 +62,18 @@ public class NameVersionRoutePredicateFactory extends AbstractRoutePredicateFact
             if (name == null || version == null) {
                 return false;
             }
-            return (name.toString() + version).equals(nameVersion);
+            String key = name.toString() + version.toString();
+            // 如果是通配符
+            if (nameVersion.contains("{")) {
+                boolean match = pathMatcher.match(nameVersion, key);
+                if (match) {
+                    Map<String, Object> attributes = exchange.getAttributes();
+                    attributes.put(SopConstants.REDIRECT_PATH_KEY, key);
+                }
+                return match;
+            } else {
+                return key.equals(nameVersion);
+            }
         };
     }
 

sop-gateway/src/main/java/com/gitee/sop/gateway/controller/RestWebFlux.java

@@ -0,0 +1,52 @@
+package com.gitee.sop.gateway.controller;
+
+import com.gitee.sop.gatewaycommon.param.ParamNames;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.reactive.function.server.RequestPredicates;
+import org.springframework.web.reactive.function.server.RouterFunction;
+import org.springframework.web.reactive.function.server.RouterFunctions;
+import org.springframework.web.reactive.function.server.ServerResponse;
+
+import java.net.URI;
+
+/**
+ * @author tanghc
+ */
+@Configuration
+public class RestWebFlux {
+
+    @Value("${sop.restful.path:/rest}")
+    private String restPath;
+
+    /**
+     * 307 Temporary Redirect（临时重定向）:
+     * <p>
+     * 在这种情况下，请求应该与另一个URI重复，但后续的请求应仍使用原始的URI。
+     * 与302相反，当重新发出原始请求时，不允许更改请求方法。 例如，应该使用另一个POST请求来重复POST请求
+     * <p>
+     * 308 Permanent Redirect （永久重定向）:
+     * <p>
+     * 请求和所有将来的请求应该使用另一个URI重复。
+     * 307和308重复302和301的行为，但不允许HTTP方法更改。 例如，将表单提交给永久重定向的资源可能会顺利进行。
+     * <p>
+     * https://www.cnblogs.com/wuguanglin/p/redirect.html
+     *
+     * @return
+     */
+    @Bean
+    RouterFunction<ServerResponse> routerFunction() {
+        return RouterFunctions.route(RequestPredicates.GET(restPath + "/**"), (serverRequest) -> {
+            String url = serverRequest.path();
+            int index = url.indexOf(restPath);
+            // 取/rest的后面部分
+            String path = url.substring(index + restPath.length());
+            String query = ParamNames.API_NAME + "=" + path + "&" + ParamNames.VERSION_NAME + "=";
+            return ServerResponse
+                    .temporaryRedirect(URI.create("/?" + query))
+                    .build();
+        });
+    }
+
+}