修复设置属性可能出现的NPE问题

generate.go

@@ -364,20 +364,19 @@ func (g *Generate) ParseReadConfigParam(requestCfg *define.UriBaseConfig, baseRe
 			continue
 		}
 		if inputType.Field(i).Type.Kind() == reflect.Interface {
-			baseReqCfg.Parameters = append(baseReqCfg.Parameters, &define.PathConfigParameter{
+			itemParam := &define.PathConfigParameter{
 				Name:        ParseStructFieldTag.GetParamName(inputType.Field(i)),
 				In:          consts.SwaggerParameterInQuery,
 				Description: ParseStructFieldTag.GetParamDesc(inputType.Field(i)),
 				Required:    ValidateRule.IsRequired(inputType.Field(i)),
 				Deprecated:  ParseStructFieldTag.Deprecated(inputType.Field(i)),
 				Schema: &define.Schema{
-					OneOf:            g.anyTypeConfig(inputType.Field(i)).OneOf,
-					Format:           realInputTypeFormat,
-					Enum:             ValidateRule.Enum(inputType.Field(i)),
-					XEnumDescription: ParseStructFieldTag.EnumDescription(inputType.Field(i)),
-					Example:          ParseStructFieldTag.GetExampleValue(inputType.Field(i)),
+					OneOf:  g.anyTypeConfig(inputType.Field(i)).OneOf,
+					Format: realInputTypeFormat,
 				},
-			})
+			}
+			g.setStructFieldProperty(itemParam.Schema, inputType.Field(i))
+			baseReqCfg.Parameters = append(baseReqCfg.Parameters, itemParam)
 			continue
 		}
 		if inputType.Field(i).Type.Kind() == reflect.Ptr {
@@ -756,6 +755,20 @@ func (g *Generate) setStructFieldProperty(schema *define.Schema, structField ref
 		if isRequired {
 			schema.Required = append(schema.Required, paramName)
 		}
+		if nil == schema.Properties[paramName] {
+			if schema.Type == consts.SwaggerDataTypeString {
+				schema.MinLength = minVal
+				schema.MaxLength = maxVal
+			} else {
+				schema.Minimum = minVal
+				schema.Maximum = maxVal
+			}
+			schema.Enum = enum
+			schema.XEnumDescription = xEnumDescription
+			schema.Example = example
+			schema.Description = description
+			return
+		}
 		if schema.Properties[paramName].Type == consts.SwaggerDataTypeString {
 			schema.Properties[paramName].MinLength = minVal
 			schema.Properties[paramName].MaxLength = maxVal