Merge pull request '修改前端预览界面，忽略大小写后缀的区别。' (#2644) from zouap_static into V20220801

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/2644
Reviewed-by: lewis <747342561@qq.com>

public/self/dataset_preview.js

@@ -123,13 +123,13 @@ function loadimg(uuid,filename){
 function loadimg(){
 	var length = labeltastresult[fileindex].pic_image_field.length;
 	
-	 if(labeltastresult[fileindex].pic_image_field.substring(length - 5) == ".json" 
-     || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".xml"
-     || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".txt"
-     || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".csv"
-     || labeltastresult[fileindex].pic_image_field.substring(length - 3) == ".md"
-     || labeltastresult[fileindex].pic_image_field.substring(length - 3) == ".py"
-     || labeltastresult[fileindex].pic_image_field.substring(length - 3) == ".sh"){
+	 if(labeltastresult[fileindex].pic_image_field.substring(length - 5).toLowerCase() == ".json" 
+     || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".xml"
+     || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".txt"
+     || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".csv"
+     || labeltastresult[fileindex].pic_image_field.substring(length - 3).toLowerCase() == ".md"
+     || labeltastresult[fileindex].pic_image_field.substring(length - 3).toLowerCase() == ".py"
+     || labeltastresult[fileindex].pic_image_field.substring(length - 3).toLowerCase() == ".sh"){
 		
 		//文本
 		canvas.style.display="none";
@@ -138,11 +138,11 @@ function loadimg(){
     $('#textcontent').height(canvas.height-40)
 		$("#textcontent").text(textContent);
 	}else{
-    if(labeltastresult[fileindex].pic_image_field.substring(length - 5) == ".jpeg" 
-    || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".jpg"
-    || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".bmp"
-    || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".gif"
-    || labeltastresult[fileindex].pic_image_field.substring(length - 4) == ".png"){
+    if(labeltastresult[fileindex].pic_image_field.substring(length - 5).toLowerCase() == ".jpeg" 
+    || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".jpg"
+    || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".bmp"
+    || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".gif"
+    || labeltastresult[fileindex].pic_image_field.substring(length - 4).toLowerCase() == ".png"){
         canvas.style.display="block";
         document.getElementById("textcontent").style.display="none";
         img.src  = ip + "/getgiteaimage?uuid=" + dataset_id + "&filename=" + labeltastresult[fileindex].pic_image_field;