}publicStringexecute() {ByteArrayOutputStreamoutput =newByteArrayOutputStream();try{JimiReaderreader =Jimi.createJimiReader(this.getImageFullPath());Imageimage = reader.getImage();Jimi.putImage("image/png", image, output); output.flush(); output.close();this.encodeString=Base64.encodeBase64Stri...
四、图片Base64编码与解码的实现示例 下面是一个完整的JavaScript示例,演示如何使用Base64编码与解码图片: // 图片Base64编码function encodeImageToBase64(imageUrl, callback) { const img = new Image(); img.crossOrigin = 'Anonymous'; img.onload = function() { const canvas = docum...
Uncaught DOMException: Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range. 这时,就需要使用编码方法,先转换为btoa()识别的字符,再进行base64编码,如可以使用encodeURI()方法 varstr = btoa(encodeURI('小火柴')); console.log(str);//JUU...
javascript // 图片Base64编码functionencodeImageToBase64(imageUrl, callback) {constimg =newImage(); img.crossOrigin='Anonymous'; img.onload=function() {constcanvas =document.createElement('canvas'); canvas.width= img.width; canvas.height= img.height;constctx = canvas.getContext('2d'); ctx.dr...
public class Base64ImageAction extends ActionSupport { private final static String galleryName ="gallery"; private static String parent =null; private String encodeString =null; public String getEncodeString() { returnencodeString; } public void setEncodeString(String encodeString) { ...
toString('base64'); console.log(dataBase64); client.write(dataBase64); } }); } rl.on('line', (data) => { encode_base64('../image.jpg') }) 解码插座: function base64_decode(base64str, file) { var bitmap = new Buffer(base64str, 'base64'); fs.writeFileSync(file, bitmap...
1.2 UIImage转base64 代码语言:javascript 复制 NSData*scaledImageData=UIImageJPEGRepresentation(scaledImage,0.8);//Encode the image data as a base64 stringNSString*imageBase64String=[scaledImageData base64EncodedStringWithOptions:0]; 案例:iOS富文本编辑器(基于WKWebview实现,Editor使用WKWebview加载一个...
将图片转化为 base64 编码有许多工具,例如本文中我所使用的 http://www.pjhome.net/web/html5/encodeDataUrl.htm ,但是很多这些网站是国外网站,经常被墙登陆不了。这里介绍一个更为快捷的方法,就是利用 Chrome 浏览器(我想 FEer 都应该有Chrome 浏览器吧=。=)。
btn1.onclick = function(){result.value = btoa(encodeURI(ta.value));} btn2.onclick = function(){result.value = decodeURI(atob(ta.value));} sel.onclick = function(){ result.focus(); result.select(); } </script> 1. 2.
$base64_image = 'data:' . $image_info['mime'] . ';base64,' . chunk_split(base64_encode($image_data)); return $base64_image; } base64图片转换为图片并保存 /* base64格式编码转换为图片并保存对应文件夹 */ function base64_image_content($base64_image_content,$path){ ...