应项目需要，采用yuicompressor对js/css文件进行压缩混淆，于是编写了一个java文件，接收参数目前只开放两个，一个为目录（可以是整个项目路径），一个是是否混淆（默认true）。程序会循环目录下所有的js/css文件，已经是min文件的除外，进行压缩之后覆盖原文件，因此一般用于开发完成测试之前做。日志文件会显示出处理的具体文件，以及由于编写不规范导致无法压缩的文件。个人碰到过一个CSS文件，文件末尾多了写了/*!，整个压缩过程就一直停留在这里了。因此使用此工具要求文件编写要规范。

public class JsAndCssZip {static Logger logger = Logger.getLogger(JsAndCssZip.class.getName());int linebreakpos = -1;// 无断行boolean munge = true;// 混淆boolean verbose = false;// 显示信息性消息和警告boolean preserveAllSemiColons = true; // 保留所有分号boolean disableOptimizations = true; // 禁用所有微优化public static void main(String[] args) {PropertyConfigurator.configure("./src/log4j.properties");if (args == null || args.length == 0) {logger.error("pls input the file or dir params!");return;}File file = new File(args[0]);logger.debug("zip path:" + args[0]);if (!file.exists()) {logger.error("the file or dir do not exist!");return;}JsAndCssZip inst = new JsAndCssZip();if (args.length > 1) {inst.munge = args[1].equalsIgnoreCase("false") ? false : true;}logger.debug("munge:" + inst.munge);Date d = new Date();logger.debug("start time : " + d);try {inst.checkFile(file);}catch (Exception e) {e.printStackTrace();}Date d1 = new Date();logger.debug("end time " + d1);logger.debug("FINISHED AND COST TIME(ms):" + (d1.getTime() - d.getTime()));}public void checkFile(File file) throws Exception {if (file.getName().endsWith(".svn"))return;if (file.isFile()) {jsZip(file);return;}File[] files = file.listFiles();if (files == null || files.length == 0)return;for (File f : files) {if (file.getName().endsWith(".svn"))return;if (file.isFile()) {jsZip(file);continue;}checkFile(f);}}public void jsZip(File file) throws Exception {String fileName = file.getName();if (fileName.endsWith(".js") == false && fileName.endsWith(".css") == false) {return;}if (fileName.endsWith(".min.js") == true || fileName.endsWith(".min.css") == true) {return;}Reader in = new InputStreamReader(new FileInputStream(file), "utf-8");String filePath = file.getAbsolutePath();logger.debug("DEAL FILE:" + filePath);File tempFile = new File(filePath + ".tempFile");Writer out = new OutputStreamWriter(new FileOutputStream(tempFile), "utf-8");if (fileName.endsWith(".js")) {try {JavaScriptCompressor jscompressor = new JavaScriptCompressor(in, new ErrorReporter() {public void warning(String message, String sourceName, int line, String lineSource, int lineOffset) {if (line < 0) {// logger.error("[WARNING] " + message);}else {// logger.error("[WARNING] " + line + ':' + lineOffset + ':' + message);}}public void error(String message, String sourceName, int line, String lineSource, int lineOffset) {if (line < 0) {// logger.error("[ERROR] " + message);}else {// logger.error("[ERROR] " + line + ':' + lineOffset + ':' + message);}}public EvaluatorException runtimeError(String message, String sourceName, int line,String lineSource, int lineOffset) {error(message, sourceName, line, lineSource, lineOffset);return new EvaluatorException(message);}});jscompressor.compress(out, linebreakpos, munge, verbose, preserveAllSemiColons, disableOptimizations);}catch (org.mozilla.javascript.EvaluatorException e) {logger.error("[ERROR] " + file.getPath());out.close();in.close();tempFile.delete();return;}}else if (fileName.endsWith(".css")) {CssCompressor csscompressor = new CssCompressor(in);csscompressor.compress(out, linebreakpos);}out.close();in.close();file.delete();tempFile.renameTo(file);tempFile.delete();}}

  需依赖yuicompressor.jar。