param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT); //以最高质量压缩 0.0 - 1.0之间 param.setCompressionQuality(1.0f); //使用图像文件中的元数据来确定是否使用平铺模式 param.setProgressiveMode(ImageWriteParam.MODE_COPY_FROM_METADATA); //获取一个图像输出流 outputStream = ImageIO.createImageOutputStre...
我们将使用ImageIO库读取和写入图片,同时使用Deflater类进行压缩。 代码示例 importjavax.imageio.ImageIO;importjava.awt.image.BufferedImage;importjava.io.*;importjava.util.zip.Deflater;importjava.util.zip.Inflater;publicclassImageCompression{publicstaticbyte[]compressImage(BufferedImageimage)throwsIOException{Byte...
imgWriteParams=newjavax.imageio.plugins.jpeg.JPEGImageWriteParam(null);//要使用压缩,必须指定压缩方式为MODE_EXPLICITimgWriteParams.setCompressionMode(imgWriteParams.MODE_EXPLICIT);//这里指定压缩的程度,参数qality是取值0~1范围内,imgWriteParams.setCompressionQuality((float) 0.5); imgWriteParams.setProgressive...
*/@ApiOperation("解压local传来的zip")@PostMapping("/local/unzip")publicStringlocalUnzipDemo(){// 获取当前项目文件夹的的zip文件StringfilePath=System.getProperty("user.dir")+"/demo-zip/src/main/resources/image.zip";StringfileName=filePath.substring(filePath.lastIndexOf('/')+1); Optional<Com...
Specifies whether to compress the JFR recording log file (of type JFR) on the disk using the gzip file compression utility. This parameter is valid only if the filename parameter is specified. By default it is set to false (recording is not compressed). To enable compression, set the param...
图片文名,生成小图片宽度,生成小图片高度,是否等比缩放(默认为true)) */ public class ImageSpek { private static File file = null; // 文件对象 private static String inputDir; // 输入图路径 private static String outputDir; // 输出图路径 private static String inputFileName; // 输入图文件名 ...
Compression level for no compression. C# 复制 [Android.Runtime.Register("NO_COMPRESSION")] public const int NoCompression = 0; Field Value Value = 0 Int32 Attributes RegisterAttribute Remarks Compression level for no compression. Java documentation for java.uti...
compression="on" compressionMinSize="50" noCompressionUserAgents="gozilla, traviata" compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain" /> 三十二、memcached的介绍 memcached是一个用C语言开发的分布式的缓存,内部基于类似hashMap的结构。 它的优点是协议简单,内置内存存储,并...
Java.Util.Zip.GZIPOutputStream Java.Util.Zip.ZipOutputStream Remarks This class implements an output stream filter for compressing data in the "deflate" compression format. It is also used as the basis for other types of compression filters, such as GZIPOutputStream. ...
Adler32 (implements java.util.zip.Checksum) java.awt.geom.AffineTransform (implements java.lang.Cloneable, java.io.Serializable) java.awt.image.AffineTransformOp (implements java.awt.image.BufferedImageOp, java.awt.image.RasterOp) java.security.AlgorithmParameterGenerator java.security.AlgorithmParameter...