fix(接口测试): 修复swagger url无法访问时，无法结束的缺陷

--bug=1041489 --user=王孝刚 【接口测试】接口swagger导入-当前服务无法访问导入url时-一直导入中-无任何提示 https://www.tapd.cn/55049933/s/1523705

backend/framework/sdk/src/main/resources/i18n/commons.properties

@@ -541,3 +541,5 @@ current_user_can_not_operation_api_key=当前用户无操作该ApiKey的权限
 
 #全局请求头
 global_request_header=全局请求头
+
+url_format_error=请检查Swagger URL是否输入正确！

backend/framework/sdk/src/main/resources/i18n/commons_en_US.properties

@@ -579,3 +579,5 @@ current_user_can_not_operation_api_key=The current user cannot operate the API k
 
 #全局请求头
 global_request_header=Global request header
+
+url_format_error=Please check if the Swagger URL is entered correctly!

backend/framework/sdk/src/main/resources/i18n/commons_zh_CN.properties

@@ -576,3 +576,5 @@ current_user_can_not_operation_api_key=当前用户无操作该ApiKey的权限
 
 #全局请求头
 global_request_header=全局请求头
+
+url_format_error=请检查Swagger URL是否输入正确！

backend/framework/sdk/src/main/resources/i18n/commons_zh_TW.properties

@@ -576,3 +576,5 @@ current_user_can_not_operation_api_key=當前用戶無法操作ApiKey
 
 #全局请求头
 global_request_header=全局請求頭
+
+url_format_error=请检查Swagger URL是否输入正确！

backend/services/api-test/src/main/java/io/metersphere/api/service/definition/ApiDefinitionImportUtilService.java

@@ -57,6 +57,8 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.net.HttpURLConnection;
+import java.net.URI;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -112,6 +114,9 @@ public class ApiDefinitionImportUtilService {
         if (StringUtils.equals(request.getType(), "SCHEDULE")) {
             request.setProtocol(ModuleConstants.NODE_PROTOCOL_HTTP);
         }
+        if (StringUtils.equals(request.getPlatform(), ApiImportPlatform.Swagger3.name()) && StringUtils.isNotBlank(request.getSwaggerUrl())) {
+            testUrlTimeout(request.getSwaggerUrl(), 30000);
+        }
         try {
             apiImport = (ApiDefinitionImport) Objects.requireNonNull(runService).parse(file == null ? null : file.getInputStream(), request);
             //TODO  处理mock数据
@@ -128,6 +133,23 @@ public class ApiDefinitionImportUtilService {
         }
     }
 
+    public static void testUrlTimeout(String address, int timeOutMillSeconds) {
+        HttpURLConnection connection = null;
+        try {
+            URI uriObj = new URI(address);
+            connection = (HttpURLConnection) uriObj.toURL().openConnection();
+            connection.setUseCaches(false);
+            connection.setConnectTimeout(timeOutMillSeconds); // 设置超时时间
+            connection.connect(); // 建立连接
+        } catch (Exception e) {
+            LogUtils.error(e);
+            throw new MSException(Translator.get("url_format_error"));
+        } finally {
+            if (connection != null) {
+                connection.disconnect(); // 关闭连接
+            }
+        }
+    }
 
     public void checkFileSuffixName(ImportRequest request, String suffixName) {
         if (FILE_JMX.equalsIgnoreCase(suffixName)) {