fix(接口测试): 解决swagger导入问题

--user=郭雨琦
--bug=1013871
https://www.tapd.cn/55049933/bugtrace/bugs/view?bug_id=1155049933001013871
swagger导入有文件传不上来，有的文件导入后响应体展示的数据不对

backend/src/main/java/io/metersphere/api/dto/definition/parse/Swagger2Parser.java

@@ -24,7 +24,6 @@ import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
 import org.apache.commons.lang3.StringUtils;
 
-
 import java.io.InputStream;
 import java.util.*;
 
@@ -48,7 +47,7 @@ public class Swagger2Parser extends SwaggerAbstractParser {
 
         } else {
             sourceStr = getApiTestStr(source);  //  导入的二进制文件转换为 String
-            swagger = new SwaggerParser().readWithInfo(sourceStr).getSwagger();
+            swagger = new SwaggerParser().readWithInfo(sourceStr, false).getSwagger();
         }
         if (swagger == null || swagger.getSwagger() == null) {  //  不是 2.0 版本，则尝试转换 3.0
             Swagger3Parser swagger3Parser = new Swagger3Parser();
@@ -612,8 +611,7 @@ public class Swagger2Parser extends SwaggerAbstractParser {
                             propertyList.add(getBodyParameters(((ObjectProperty) items).getProperties(), refSet));
                         }
                         jsonObject.put(key, propertyList);
-                    }
-                    else {
+                    } else {
                         jsonObject.put(key, new ArrayList<>());
                     }
                 } else if (value instanceof RefProperty) {

backend/src/main/java/io/metersphere/api/dto/definition/parse/Swagger3Parser.java

@@ -122,7 +122,6 @@ public class Swagger3Parser extends SwaggerAbstractParser {
     }
 
 
-
     private List<ApiDefinitionWithBLOBs> parseRequests(OpenAPI openAPI, ApiTestImportRequest importRequest) {
         Paths paths = openAPI.getPaths();
 
@@ -380,7 +379,7 @@ public class Swagger3Parser extends SwaggerAbstractParser {
             Object propertiesResult = parseSchemaPropertiesToJson(schema, refSet, infoMap);
             return propertiesResult == null ? getDefaultValueByPropertyType(schema) : propertiesResult;
         } else {
-            return schema;
+            return getDefaultValueByPropertyType(schema);
         }
     }
 
@@ -525,7 +524,7 @@ public class Swagger3Parser extends SwaggerAbstractParser {
             return example == null ? 0 : example;
         } else if (value instanceof NumberSchema) {
             return example == null ? 0.0 : example;
-        } else if (value instanceof StringSchema) {
+        } else if (value instanceof StringSchema || value.getType().equals("string")) {
             return example == null ? "" : example;
         } else {// todo 其他类型?
             return getDefaultStringValue(value.getDescription());