import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.util.ArrayList; import java.util.List; /** * ********************************************** * @description 計算源代碼(src)行數,不計算空行 * 宗旨:將src下全部文件組裝成list,再篩選出文件,對文件進行遍歷讀取 *********************************************** */ public class LineCounter { List<File> list = new ArrayList<File>(); int linenumber = 0; FileReader fr = null; BufferedReader br = null; public void counter(String projectName) { // String path = System.getProperty("user.dir"); String path = LineCounter.class.getResource("/").getPath(); // 同下個path path = path.substring(0, path.length() - 24) + projectName + "/src/main/java"; System.out.println(path); File file = new File(path); File files[] = null; files = file.listFiles(); addFile(files); isDirectory(files); readLinePerFile(); System.out.println("Totle:" + linenumber + "行"); } // 判斷是不是目錄 public void isDirectory(File[] files) { for (File s : files) { if (s.isDirectory()) { File file[] = s.listFiles(); addFile(file); isDirectory(file); continue; } } } //將src下全部文件組織成list public void addFile(File file[]) { for (int index = 0; index < file.length; index++) { list.add(file[index]); // System.out.println(list.size()); } } //讀取非空白行 public void readLinePerFile() { try { for (File s : list) { int yuan = linenumber; if (s.isDirectory()) { continue; } fr = new FileReader(s); br = new BufferedReader(fr); String i = ""; while ((i = br.readLine()) != null) { if (isBlankLine(i)) linenumber++; } System.out.print(s.getName()); System.out.println("\t\t有" + (linenumber - yuan) + "行"); } } catch (Exception e) { e.printStackTrace(); } finally { if (br != null) { try { br.close(); } catch (Exception e) { } } if (fr != null) { try { fr.close(); } catch (Exception e) { } } } } //是不是空行 public boolean isBlankLine(String i) { if (i.trim().length() == 0) { return false; } else { return true; } } public static void main(String args[]) { LineCounter lc = new LineCounter(); String projectName = "/maps1.2"; //這裏傳入你的項目名稱 lc.counter(projectName); } }