項目需要壓縮JS和CSS，文件和文件夾太多，一一處理又比較麻煩，寫個程序吧：

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.io.Reader;

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;

public class TestJsZip {

//要處理的目錄

static File dir=new File("E:\\js");

static int linebreakpos = -1;

static boolean munge=true;

static boolean verbose=false;

static boolean preserveAllSemiColons=false;

static boolean disableOptimizations=false;

public static void main(String[] args) throws Exception{

checkFile(dir);

}

public static void checkFile(File file) throws Exception{

File[] files=file.listFiles();

if(files==null||files.length==0)

return;

for(File f:files){

if(f.getName().endsWith(".svn")){

continue;

}

if(f.isFile()){

jsZip(f);

System.out.println("文件==="+f.getName());

continue;

}else{

System.out.println("目錄=="+f.getName());

checkFile(f);

}

}

}

public static void jsZip(File file) throws Exception{

String fileName=file.getName();

if(!fileName.endsWith(".js")&&!fileName.endsWith(".css")){

return;

}

Reader in = new InputStreamReader(new FileInputStream(file),"utf-8");

String filePath=file.getAbsolutePath();

File tempFile=new File(filePath+".tempFile");

Writer out = new OutputStreamWriter(new FileOutputStream(tempFile),"utf-8");

if(fileName.endsWith(".js")){

JavaScriptCompressor 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);

}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();

}

}

總結

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