增加未传入pdfId的判断

src/views/report/PreviewPDF.vue

@@ -28,6 +28,11 @@ const loadedPDF=()=>{
     showHint.value = false
 }
 const getPDFDetail = (pdf_id)=>{
+    if(!pdf_id){
+        ElMessage.error('未找到PDF')
+        LOADING&&LOADING.close()
+        return
+    }
     apiGetPDFDetail({pdf_id}).then(res=>{
         if(res.code!==200) return 
         pdfState.pdf_url = res.data.pdf_url