Merge pull request #1104 from d3ns0n/relative-redirect-for-index-page

switch from 'redirect:' prefix to ResponseEntity for redirecting UI index

Author: bnasslahsen

springdoc-openapi-ui/src/main/java/org/springdoc/webmvc/ui/SwaggerWelcomeActuator.java

@@ -12,6 +12,7 @@
 import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointProperties;
 import org.springframework.boot.actuate.endpoint.web.annotation.ControllerEndpoint;
 import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 
@@ -54,7 +55,7 @@ public SwaggerWelcomeActuator(SwaggerUiConfigProperties swaggerUiConfig, SpringD
 	@Operation(hidden = true)
 	@GetMapping(DEFAULT_PATH_SEPARATOR)
 	@Override
-	public String redirectToUi(HttpServletRequest request) {
+	public ResponseEntity<Void> redirectToUi(HttpServletRequest request) {
 		return super.redirectToUi(request);
 	}
 

springdoc-openapi-ui/src/main/java/org/springdoc/webmvc/ui/SwaggerWelcomeCommon.java

@@ -9,8 +9,9 @@
 import org.springdoc.core.SwaggerUiConfigProperties;
 import org.springdoc.ui.AbstractSwaggerWelcome;
 
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
-import org.springframework.web.servlet.view.UrlBasedViewResolver;
 import org.springframework.web.util.UriComponentsBuilder;
 
 import static org.springdoc.core.Constants.SWAGGER_UI_URL;
@@ -26,15 +27,17 @@ public SwaggerWelcomeCommon(SwaggerUiConfigProperties swaggerUiConfig, SpringDoc
 		super(swaggerUiConfig, springDocConfigProperties, swaggerUiConfigParameters);
 	}
 
-	protected String redirectToUi(HttpServletRequest request) {
+	protected ResponseEntity<Void> redirectToUi(HttpServletRequest request) {
 		buildConfigUrl(request.getContextPath(), ServletUriComponentsBuilder.fromCurrentContextPath());
-		String sbUrl =   swaggerUiConfigParameters.getUiRootPath() + SWAGGER_UI_URL;
+		String sbUrl = request.getContextPath() + swaggerUiConfigParameters.getUiRootPath() + SWAGGER_UI_URL;
 		UriComponentsBuilder uriBuilder = getUriComponentsBuilder(sbUrl);
 
 		// forward all queryParams from original request
 		request.getParameterMap().forEach(uriBuilder::queryParam);
 
-		return UrlBasedViewResolver.REDIRECT_URL_PREFIX + uriBuilder.build().encode().toString();
+		return ResponseEntity.status(HttpStatus.FOUND)
+				.location(uriBuilder.build().encode().toUri())
+				.build();
 	}
 
 	protected Map<String, Object> openapiJson(HttpServletRequest request) {

springdoc-openapi-ui/src/main/java/org/springdoc/webmvc/ui/SwaggerWelcomeWebMvc.java

@@ -32,6 +32,7 @@
 
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -76,7 +77,7 @@ public SwaggerWelcomeWebMvc(SwaggerUiConfigProperties swaggerUiConfig, SpringDoc
 	@Operation(hidden = true)
 	@GetMapping(SWAGGER_UI_PATH)
 	@Override
-	public String redirectToUi(HttpServletRequest request) {
+	public ResponseEntity<Void> redirectToUi(HttpServletRequest request) {
 		return super.redirectToUi(request);
 	}