将java文件开头的package路径进行规整，使包路径正确

import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.apache.commons.lang.StringUtils;/** * 规整java文件开头的package路径 *  * @author zhaigx * @date 2013-7-12 */public class ConvertPkgPath4j {public static List<String> fileList = new ArrayList<String>();public static void main(String[] args) {test2();}private static void test2() {List arrayList = ConvertPkgPath4j.getListFiles("I:/workspace70/study_test/src/Java实例精通", "java", true);process(arrayList);}private static void process(List arrayList) {System.out.println(arrayList);int size = arrayList.size();String pkgpath = "";for (int i = 0; i < size; i++) {String file = (String) arrayList.get(i);pkgpath = createPkgPath(file);String cont = read(new File(file));cont = cont.replaceAll("package .*\n", pkgpath);write(cont, new File(file));}}/** * 根据文件路径创建package字符串 *  * @param file * @return * @author zhaigx * @date 2013-7-12 */private static String createPkgPath(String file) {String fileName = StringUtils.substringAfterLast(file, "\\");String pkg = StringUtils.replace(file, "\\", ".");pkg = pkg.substring(pkg.indexOf("src") + 4);pkg = "package " + StringUtils.remove(pkg, "." + fileName) + ";\n";// java开头的包路径return pkg;}/** *  * @param path *            文件路径 * @param suffix *            后缀名 * @param isdepth *            是否遍历子目录 * @return */public static List getListFiles(String path, String suffix, boolean isdepth) {File file = new File(path);return ConvertPkgPath4j.listFile(file, suffix, isdepth);}public static List listFile(File f, String suffix, boolean isdepth) {// 是目录，同时需要遍历子目录if (f.isDirectory() && isdepth == true) {File[] t = f.listFiles();for (int i = 0; i < t.length; i++) {listFile(t[i], suffix, isdepth);}} else {String filePath = f.getAbsolutePath();if (suffix != null) {int begIndex = filePath.lastIndexOf(".");// 最后一个.(即后缀名前面的.)的索引String tempsuffix = "";if (begIndex != -1)// 防止是文件但却没有后缀名结束的文件{tempsuffix = filePath.substring(begIndex + 1,filePath.length());}if (tempsuffix.equals(suffix)) {fileList.add(filePath);}} else {// 后缀名为null则为所有文件fileList.add(filePath);}}return fileList;}public static String read(File src) {StringBuffer res = new StringBuffer();String line = null;try {BufferedReader reader = new BufferedReader(new FileReader(src));while ((line = reader.readLine()) != null) {res.append(line + "\n");}reader.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return res.toString();}public static boolean write(String cont, File dist) {try {BufferedWriter writer = new BufferedWriter(new FileWriter(dist));writer.write(cont);writer.flush();writer.close();return true;} catch (IOException e) {e.printStackTrace();return false;}}}