java开发中压缩js,css文件

package test; import java.io.IOException; import java.io.Reader; import java.io.StringReader; import java.io.StringWriter; import java.io.Writer; import org.mozilla.javascript.ErrorReporter; import org.mozilla.javascript.EvaluatorException; import com.yahoo.platform.yui.compressor.CssCompressor; import com.yahoo.platform.yui.compressor.JavaScriptCompressor; /** * js css压缩 输入js css String串 输出js css 压缩后的String串 * * @author Administrator * */ public class TestJsZip { int linebreakpos = -1; boolean munge = true; boolean verbose = false; boolean preserveAllSemiColons = false; boolean disableOptimizations = false; /** * 压缩js方法 * * @param jsString * js字符串 * @return */ public String outJs(String jsString) { Reader in = new StringReader(jsString); Writer out = new StringWriter(); String jsStringZip = null; JavaScriptCompressor jscompressor; try { jscompressor = new JavaScriptCompressor(in, new ErrorReporter() { public void warning(String message, String sourceName, int line, String lineSource, int lineOffset) { if (line < 0) { System.err.println("\n[WARNING] " + message); } else { System.err.println("\n[WARNING] " + line + ':' + lineOffset + ':' + message); } } public void error(String message, String sourceName, int line, String lineSource, int lineOffset) { if (line < 0) { System.err.println("\n[ERROR] " + message); } else { System.err.println("\n[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); jsStringZip = out.toString(); out.close(); in.close(); } catch (EvaluatorException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return jsStringZip; } /** * 压缩css方法 * * @param cssString * css字符串 * @return */ public String outCss(String cssString) { Reader in = new StringReader(cssString); Writer out = new StringWriter(); String cssStringZip = null; CssCompressor csscompressor; try { csscompressor = new CssCompressor(in); csscompressor.compress(out, linebreakpos); cssStringZip = out.toString(); out.close(); in.close(); } catch (IOException e) { e.printStackTrace(); } return cssStringZip; } public static void main(String[] args) { TestJsZip t = new TestJsZip(); String jsString = "var data = {};/* 公共js方法列表 0.全局 表格对象，" + "表格中各行背景色 */data.call_back = callback;if(json)" + "{data.queryData = json;}"; String cssString = ".red a:link,.red a:visited{color:red;text-decoration: none}.red a:hover " + "{color:#C30000;text-decoration: none}/* 数字按钮框样式 */#imgTitle {FILTER:ALPHA" + "(opacity=70); position:relative;left:0px; text-align:left;overflow: hidden;}"; System.out.println(t.outJs(jsString)); // System.out.println(t.outJs(cssString)); System.out.println(t.outCss(cssString)); } }