diff --git a/spring-test/src/main/java/org/springframework/mock/web/MockHttpServletRequest.java b/spring-test/src/main/java/org/springframework/mock/web/MockHttpServletRequest.java
index 533d52064a..722250cb9d 100644
--- a/spring-test/src/main/java/org/springframework/mock/web/MockHttpServletRequest.java
+++ b/spring-test/src/main/java/org/springframework/mock/web/MockHttpServletRequest.java
@@ -36,6 +36,7 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.DispatcherType;
 import javax.servlet.RequestDispatcher;
@@ -946,8 +947,13 @@ public class MockHttpServletRequest implements HttpServletRequest {
 
 	@Override
 	public StringBuffer getRequestURL() {
-		StringBuffer url = new StringBuffer(this.scheme);
-		url.append("://").append(this.serverName).append(':').append(this.serverPort);
+		StringBuffer url = new StringBuffer(this.scheme).append("://").append(this.serverName);
+
+		if (this.serverPort > 0
+				&& (("http".equalsIgnoreCase(scheme) && this.serverPort != 80) || ("https".equalsIgnoreCase(scheme) && this.serverPort != 443))) {
+			url.append(':').append(this.serverPort);
+		}
+
 		url.append(getRequestURI());
 		return url;
 	}
diff --git a/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletRequestTests.java b/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletRequestTests.java
index a237bb00d1..5eb2c42a62 100644
--- a/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletRequestTests.java
+++ b/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletRequestTests.java
@@ -193,6 +193,39 @@ public class MockHttpServletRequestTests {
 		assertEqualEnumerations(Collections.enumeration(preferredLocales), request.getLocales());
 	}
 
+	@Test
+	public void getRequestURL() {
+		request.setServerPort(8080);
+		request.setRequestURI("/path");
+		assertEquals("http://localhost:8080/path", request.getRequestURL().toString());
+
+		request.setScheme("https");
+		request.setServerName("example.com");
+		request.setServerPort(8443);
+		assertEquals("https://example.com:8443/path", request.getRequestURL().toString());
+	}
+
+	@Test
+	public void getRequestURLWithDefaults() {
+		StringBuffer requestURL = request.getRequestURL();
+		assertEquals("http://localhost", requestURL.toString());
+	}
+
+	@Test
+	public void getRequestURLWithDefaultsAndHttps() {
+		request.setScheme("https");
+		request.setServerPort(443);
+		StringBuffer requestURL = request.getRequestURL();
+		assertEquals("https://localhost", requestURL.toString());
+	}
+
+	@Test
+	public void getRequestURLWithNegativePort() {
+		request.setServerPort(-99);
+		StringBuffer requestURL = request.getRequestURL();
+		assertEquals("http://localhost", requestURL.toString());
+	}
+
 	private void assertEqualEnumerations(Enumeration<?> enum1, Enumeration<?> enum2) {
 		assertNotNull(enum1);
 		assertNotNull(enum2);