签名问题

src/pages/my/signature.vue

@@ -91,30 +91,24 @@ const getSignData = () => {
         })
 }
 
-function base64ToBlob(base64Data) {
-    // 分离Base64的MIME类型和实际数据
-    const parts = base64Data.split(';base64,');
-    const contentType = parts[0].split(':')[1];
-    const raw = window.atob(parts[1]);
-    const rawLength = raw.length;
-    const uInt8Array = new Uint8Array(rawLength);
-    
-    for (let i = 0; i < rawLength; ++i) {
-        uInt8Array[i] = raw.charCodeAt(i);
-    }
-    
-    return new Blob([uInt8Array], { type: contentType });
-}
-
-function blobToFile(blob, fileName) {
-    return new File([blob], fileName, { type: blob.type });
-}
-
-
 // 签名完成
 const complete = (e) => {
     signType.value = 0
-    console.log(e) // 返回本地生成的base图片路径
+    // console.log(e) // 返回本地生成的base图片路径
+    const img = new Image()
+    img.src = e
+    img.onload = () => {
+        const canvas = document.createElement('canvas')
+        canvas.width = img.width
+        canvas.height = img.height
+        const ctx = canvas.getContext('2d')
+        ctx.drawImage(img, 0, 0)
+
+        // 转换为 WebP 格式，质量 0.8
+        const webpBase64 = canvas.toDataURL('image/webp', 0.8)
+
+        console.log('🚀 ~ WebP base64:', webpBase64)
+    }
     uploadImg2(e)
 }
 
@@ -148,29 +142,9 @@ const handlePhoto = () => {
     })
 }
 // 上传
-const uploadImg2 = (base64Data) => {
+const uploadImg2 = async (base64Data) => {
-    // 1. 将Base64转换为Blob
-    const blob = base64ToBlob(base64Data);
-    
-    // 2. 将Blob转换为File（uni-app的uploadFile也可以直接使用Blob）
-    const file = blobToFile(blob, 'image.png');
-    console.log('🚀 ~ uploadImg ~ file:', file)
-    
-    // 3. 创建FormData（H5环境下需要）
-    const formData = new FormData();
-    formData.append('file', file);
-    uni.uploadFile({
-        url: '/file/upload',
-        // filePath: file,
-        name: 'file',
-        formData: formData,
-        header: {
-            // Authorization: this.token,
-        },
-        success: async (res) => {
-            console.log('🚀 ~ uploadImg ~ res:', res)
     try {
-                const signUrl = JSON.parse(res.data).data.url
+        const signUrl = base64Data
         if (opts.isLease) {
             const params = {
                 id: opts.id,
@@ -207,11 +181,6 @@ const uploadImg2 = (base64Data) => {
             icon: 'none',
         })
     }
-        },
-        fail: (err) => {
-            console.log('🚀 ~ uploadImg ~ err:', err)
-        },
-    })
 }
 const uploadImg = (path) => {
     uni.uploadFile({