如何使用fs extra與base64文字保存物理圖像

請幫助我嗎？我想用base64保存一個以base64編碼的圖像。如何使用fs extra與base64文字保存物理圖像

我已經試過這樣：

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    image = image.replace(/^data:image\/png;base64,/, "").replace(/^data:image\/jpeg;base64,/, "").replace(/^data:image\/gif;base64,/, ""); 
 
    
 
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
 
    
 
    fse.writeFile("image.png", image, 'base64', function(err) { 
 
     if(!err) 
 
      console.log('cool ok'); 
 
     else 
 
      console.log('erreur' + err); 
 
    });

控制檯日誌顯示我的圖像創建成功，但它是不可能打開它。當我嘗試查看圖像時，它顯示一個錯誤（該文件已損壞）。

你能幫我嗎？

不好意思，我不擅長英文。

來源

2015-10-16 codevscodevs

我投票關閉，然後我嘗試了代碼，它的工作。 –

改變你的正則表達式來此：

image = image.replace(/^data:image\/(png|png|gif|bmp|jpg|jpeg);base64,/, "");

我測試了一下關於node.js的，它的工作並呈現你編碼的小雞形象。

來源

2015-10-16 15:58:42

其實，領先的'/'沒有被剝離。如果仔細觀察，變量'image'正在'writeFile'函數中使用，而不是'image2'。 –

啊，確定抱歉。無論如何，他的替換是相當無效的。 –

我試過你說的，但是，我有同樣的錯誤，當我試圖用我的圖片查看圖片時，我得到了這個錯誤：Erreur d'interprétationdu fichier d'image JPEG（不是JPEG文件：以0x75開頭0xab ） – codevscodevs

使用Buffer將ascii變成二進制，然後將binary添加到fs.writeFile。

var fs = require('fs'); 
var binImage = new Buffer(image, 'base64').toString('binary'); 
fs.writeFile("image.jpg", binImage, "binary", function(err) { 
    if(!err) 
     console.log('cool ok'); 
    else 
     console.log('erreur' + err); 
});

來源

2015-10-16 16:00:41 wolfhammer

I嘗試你所說的，但是，我有同樣的錯誤，當我試圖用我的圖片查看圖片時，我得到了這個錯誤：JPEG格式（不是JPEG文件：以0x75 0xab開頭） – codevscodevs

我沒有使用'fs extra'只是普通的'fs'，文件內容以0xFF 0xD8開始。我不知道爲什麼你的文件有不同的標題。嘗試刪除該文件並再次運行腳本。我的標題有從字節7開始的JFIF。 – wolfhammer

非常感謝！這真的幫助我超出了工作的魅力:) :) –

如何使用fs extra與base64文字保存物理圖像

回答

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