Fix URI override for HttpExchange

Closes gh-29624

spring-web/src/main/java/org/springframework/web/service/invoker/HttpRequestValues.java

@@ -115,19 +115,20 @@ public HttpMethod getHttpMethod() {
 	}
 
 	/**
-	 * Return the full URL to use, if set.
-	 * <p>This is mutually exclusive with {@link #getUriTemplate() uriTemplate}.
-	 * One of the two has a value but not both.
+	 * Return the URL to use.
+	 * <p>Typically, this comes from a {@link URI} method argument, which provides
+	 * the caller with the option to override the {@link #getUriTemplate()
+	 * uriTemplate} from class and method {@code HttpExchange} annotations.
+	 * annotation.
 	 */
 	@Nullable
 	public URI getUri() {
 		return this.uri;
 	}
 
 	/**
-	 * Return the URL template for the request, if set.
-	 * <p>This is mutually exclusive with a {@linkplain #getUri() full URL}.
-	 * One of the two has a value but not both.
+	 * Return the URL template for the request. This comes from the values in
+	 * class and method {@code HttpExchange} annotations.
 	 */
 	@Nullable
 	public String getUriTemplate() {
@@ -248,38 +249,29 @@ public Builder setHttpMethod(HttpMethod httpMethod) {
 		}
 
 		/**
-		 * Set the request URL as a full URL.
-		 * <p>This is mutually exclusive with, and resets any previously set
-		 * {@linkplain #setUriTemplate(String) URI template} or
-		 * {@linkplain #setUriVariable(String, String) URI variables}.
+		 * Set the URL to use. When set, this overrides the
+		 * {@linkplain #setUriTemplate(String) URI template} from the
+		 * {@code HttpExchange} annotation.
 		 */
 		public Builder setUri(URI uri) {
 			this.uri = uri;
-			this.uriTemplate = null;
-			this.uriVars = null;
 			return this;
 		}
 
 		/**
 		 * Set the request URL as a String template.
-		 * <p>This is mutually exclusive with, and resets any previously set
-		 * {@linkplain #setUri(URI) full URI}.
 		 */
 		public Builder setUriTemplate(String uriTemplate) {
 			this.uriTemplate = uriTemplate;
-			this.uri = null;
 			return this;
 		}
 
 		/**
 		 * Add a URI variable name-value pair.
-		 * <p>This is mutually exclusive with, and resets any previously set
-		 * {@linkplain #setUri(URI) full URI}.
 		 */
 		public Builder setUriVariable(String name, String value) {
 			this.uriVars = (this.uriVars != null ? this.uriVars : new LinkedHashMap<>());
 			this.uriVars.put(name, value);
-			this.uri = null;
 			return this;
 		}
 
@@ -399,7 +391,7 @@ public <T, P extends Publisher<T>> void setBody(P body, ParameterizedTypeReferen
 		public HttpRequestValues build() {
 
 			URI uri = this.uri;
-			String uriTemplate = (this.uriTemplate != null || uri != null ? this.uriTemplate : "");
+			String uriTemplate = (this.uriTemplate != null ? this.uriTemplate : "");
 			Map<String, String> uriVars = (this.uriVars != null ? new HashMap<>(this.uriVars) : Collections.emptyMap());
 
 			Object bodyValue = this.bodyValue;

spring-web/src/main/java/org/springframework/web/service/invoker/UrlArgumentResolver.java

@@ -40,7 +40,6 @@ public boolean resolve(
 
 		if (argument != null) {
 			requestValues.setUri((URI) argument);
-			return true;
 		}
 
 		return true;

spring-web/src/test/java/org/springframework/web/service/invoker/UrlArgumentResolverTests.java

@@ -21,6 +21,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.lang.Nullable;
 import org.springframework.web.service.annotation.GetExchange;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -51,7 +52,7 @@ void url() {
 		this.service.execute(dynamicUrl);
 
 		assertThat(getRequestValues().getUri()).isEqualTo(dynamicUrl);
-		assertThat(getRequestValues().getUriTemplate()).isNull();
+		assertThat(getRequestValues().getUriTemplate()).isEqualTo("/path");
 	}
 
 	@Test
@@ -67,7 +68,9 @@ void notUrl() {
 	@Test
 	void ignoreNull() {
 		this.service.execute(null);
+
 		assertThat(getRequestValues().getUri()).isNull();
+		assertThat(getRequestValues().getUriTemplate()).isEqualTo("/path");
 	}
 
 	private HttpRequestValues getRequestValues() {
@@ -78,7 +81,7 @@ private HttpRequestValues getRequestValues() {
 	private interface Service {
 
 		@GetExchange("/path")
-		void execute(URI uri);
+		void execute(@Nullable URI uri);
 
 		@GetExchange
 		void executeNotUri(String other);

spring-webflux/src/test/java/org/springframework/web/reactive/function/client/support/WebClientHttpServiceProxyTests.java

@@ -18,6 +18,7 @@
 
 
 import java.io.IOException;
+import java.net.URI;
 import java.time.Duration;
 import java.util.HashMap;
 import java.util.Map;
@@ -31,6 +32,8 @@
 import reactor.core.publisher.Mono;
 import reactor.test.StepVerifier;
 
+import org.springframework.lang.Nullable;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestAttribute;
 import org.springframework.web.reactive.function.client.WebClient;
 import org.springframework.web.service.annotation.GetExchange;
@@ -77,7 +80,7 @@ void greeting() throws Exception {
 	}
 
 	@Test
-	void greetingWithRequestAttribute() throws Exception {
+	void greetingWithRequestAttribute() {
 
 		Map<String, Object> attributes = new HashMap<>();
 
@@ -100,7 +103,19 @@ void greetingWithRequestAttribute() throws Exception {
 		assertThat(attributes).containsEntry("myAttribute", "myAttributeValue");
 	}
 
-	private TestHttpService initHttpService() throws Exception {
+	@Test // gh-29624
+	void uri() throws Exception {
+		String expectedBody = "hello";
+		prepareResponse(response -> response.setResponseCode(200).setBody(expectedBody));
+
+		URI dynamicUri = this.server.url("/greeting/123").uri();
+		String actualBody = initHttpService().getGreetingById(dynamicUri, "456");
+
+		assertThat(actualBody).isEqualTo(expectedBody);
+		assertThat(this.server.takeRequest().getRequestUrl().uri()).isEqualTo(dynamicUri);
+	}
+
+	private TestHttpService initHttpService() {
 		WebClient webClient = WebClient.builder().baseUrl(this.server.url("/").toString()).build();
 		return initHttpService(webClient);
 	}
@@ -127,7 +142,9 @@ private interface TestHttpService {
 		@GetExchange("/greeting")
 		Mono<String> getGreetingWithAttribute(@RequestAttribute String myAttribute);
 
-	}
+		@GetExchange("/greetings/{id}")
+		String getGreetingById(@Nullable URI uri, @PathVariable String id);
 
+	}
 
 }