webp转成png jpg jpeg(亲测可用 无需安装动态链接库)

Webp是Google推出的一种新型图片格式，相比于 传统的PNG/JPG图片有着更小体积的优势，在Web中有着广泛的应用。由于Webp格式推出比较晚， Jdk 内置的图片编解码库对此并不支持。

网上给出的Java环境解决方案往往需要手动在java.library.path中安装对应的动态链接库，windows是dll文件，linux是so文件。这对于开发部署非常不方便。

本文提供一种无需手动安装动态链接库，同时可以方便处理Webp的解决方案

项目git链接/nintha/webp-imageio-core

webp-imageio-core.jar包

链接：/s/1xfB2OrbvAFnEk_FNWE36rw

提取码：akzp

在项目中导入webp-imageio-core.jar包

webp编码

public static void main(String args[]) throws IOException {String inputPngPath = "test_pic/test.png";String inputJpgPath = "test_pic/test.jpg";String outputWebpPath = "test_pic/test_.webp";// Obtain an image to encode from somewhereBufferedImage image = ImageIO.read(new File(inputJpgPath));// Obtain a WebP ImageWriter instanceImageWriter writer = ImageIO.getImageWritersByMIMEType("image/webp").next();// Configure encoding parametersWebPWriteParam writeParam = new WebPWriteParam(writer.getLocale());writeParam.setCompressionMode(WebPWriteParam.MODE_DEFAULT);// Configure the output on the ImageWriterwriter.setOutput(new FileImageOutputStream(new File(outputWebpPath)));// Encodewriter.write(null, new IIOImage(image, null, null), writeParam);}

webp解码

public static void main(String args[]) throws IOException {String inputWebpPath = "test_pic/test.webp";String outputJpgPath = "test_pic/test_.jpg";String outputJpegPath = "test_pic/test_.jpeg";String outputPngPath = "test_pic/test_.png";// Obtain a WebP ImageReader instanceImageReader reader = ImageIO.getImageReadersByMIMEType("image/webp").next();// Configure decoding parametersWebPReadParam readParam = new WebPReadParam();readParam.setBypassFiltering(true);// Configure the input on the ImageReaderreader.setInput(new FileImageInputStream(new File(inputWebpPath)));// Decode the imageBufferedImage image = reader.read(0, readParam);ImageIO.write(image, "png", new File(outputPngPath));ImageIO.write(image, "jpg", new File(outputJpgPath));ImageIO.write(image, "jpeg", new File(outputJpegPath));}

原文章：/a/1190000016324137