< origHeight) { // 以宽为标准 s = getSize(origWidth, origHeight, width, height, 1); } else {// 以高为标准 s = getSize(origWidth, origHeight, width, height, 2); } if (thumbnail(src, dst, s[0], s[1])) { return crop(src, dst, width, height, left, top); } return false; } /** * 加边框。 * @param src 源图片 * @param dst 目标图片 * @param borderWidth 边框的宽度 * @param borderHeight 边框的高度 * @param borderColor 边框的颜色 * @return 是否处理成功 */ public static boolean border(String src, String dst, int borderWidth, int borderHeight, String borderColor) { // 构建命令 CommandLine cmdLine = new CommandLine(EXECUTABLE_CONVERT); cmdLine.addArgument("-bordercolor"); cmdLine.addArgument(borderColor); cmdLine.addArgument("-border"); cmdLine.addArgument(borderWidth + "x" + borderHeight); cmdLine.addArgument(src); cmdLine.addArgument(dst); try { executeCommandLine(cmdLine); return true; } catch (Exception e) { LOG.error("加图片边框时发生异常，Cause: ", e); return false; } } /** * 转换图片格式。 * @param src 源图片 * @param dst 目标图片 * @param format 转换的格式 * @return 是否处理成功 */ public static boolean format(String src, String dst, String format) { // 构建命令 CommandLine cmdLine = new CommandLine(EXECUTABLE_CONVERT); cmdLine.addArgument(src); cmdLine.addArgument("-format"); cmdLine.addArgument("'" + format + "'"); cmdLine.addArgument(dst); try { executeCommandLine(cmdLine); return true; } catch (Exception e) { LOG.error("转换图片格式时发生异常，Cause: ", e); return false; } } /** * 转换无限极的TIFF图片。 */ public static boolean convertTiff(String src, String dst) { // 构建命令 CommandLine cmdLine = new CommandLine(EXECUTABLE_CONVERT); cmdLine.addArgument(src); cmdLine.addArgument("-colorspace"); cmdLine.addArgument("RGB"); cmdLine.addArgument(dst); try { executeCommandLine(cmdLine); return true; } catch (Exception e) { LOG.error("转换图片格式时发生异常，Cause: ", e); return false; } } /** * 获得要压缩图片的大小。 * @param w 图片的原宽度 * @param h 图片的原高度 * @param width 标准宽 * @param height 标准高 * @param type 类型 1-以宽为标准压缩 2-以高为标准压缩 3-以比例大小压缩 * @return size[0]-要压缩的宽度， size[1]-要压缩的高度 */ public static int[] getSize(double w, double h, double width, double height, int type) { if (w < width) {// 如果原宽度比标准宽度小 width = w; } if (h < height) {// 如果原高度比标准高度小 height = h; } double scale = w / h; switch (type) { case 1: height = width / scale; break; case 2: width = height * scale; break; case 3: if (width / height >
Scale) {width = height * scale;} else if ((width / height) < scale) {height = width / scale;} break;} int [] size = new int [2]; size [0] = (int) width; size [1] = (int) height; return size;} / * * specify the width. * @ param src * @ param width * @ param dst * / public static boolean resize (String src, int width, String dst) {/ / build commands CommandLine cmdLine = new CommandLine (EXECUTABLE_CONVERT); cmdLine.addArgument (src); cmdLine.addArgument ("- resize"); cmdLine.addArgument (width + "); cmdLine.addArgument (dst); try {executeCommandLine (cmdLine); return true } catch (Exception e) {LOG.error ("exception occurred while thumbnail picture, Cause:", e); return false;}} / * specify width and height. * @ param src * @ param width * @ param dst * / public static boolean resizeWH (String src,String dst, int width, int height) {/ / build commands CommandLine cmdLine = new CommandLine (EXECUTABLE_CONVERT); cmdLine.addArgument (src); cmdLine.addArgument ("- resize"); cmdLine.addArgument (width + "x" + height + "!"); cmdLine.addArgument (dst); try {executeCommandLine (cmdLine); return true } catch (Exception e) {LOG.error ("exception occurred while thumbnail picture, Cause:", e); return false;}
Imagemagick is to be installed on the server.
The above is the whole content of this article, I hope it will be helpful to your study, and I also hope that you will support it.
