修正大数据量隐患导出导致数据库内存溢出

safesite/export.py

@@ -265,6 +265,10 @@ def exportxlsx(a,objs):
         row_height = 70
         #查询数据
         yhobjs = objs.order_by('-troubleid')
+        if yhobjs.count()>100:
+            res = HttpResponse()
+            res.write('数量超过100,请查询后导出!')
+            return res
         vl = yhobjs.values('yhnum','fxr__name','yhms','yhzt','fxsj','tbsj','yhlb__dickeyname','yhpg__dickeyname','yhdd','fxbm__partname','yhdj__dickeyname','yhpg__dickeyname',
         'jclx__dickeyname','yhlx__dicname','yyfx','zgcs','yhtp','zghtp','zgms','zgbm__partname','zgr__name','zgqx','shr__name','fcr__name')
         vl=list(vl)

safesite/templates/trouble.html

@@ -310,7 +310,8 @@
     function exportyhexcel() {
         var querydata = $('#searchyhff').serializeJSON();
         let url = 'troublehandle?a=exportexcel&' + parseParams(querydata)
-        $('<form method="post" action="' + url + '"></form>').appendTo('body').submit().remove();
+        window.open(url);
+        // $('<form method="post" action="' + url + '"></form>').appendTo('body').submit().remove();
     }
     function delyh() {
         var row = $('#yhtable').datagrid('getSelected');