很久沒有更新了……………………
此處省略一萬字。胡漢三又回來啦!!!!言歸正傳。。。java
本次主要是實現了功能:根據傳入的路徑,壓縮文件和文件夾,例如從A路徑下的文件壓縮到B目錄,其中包括空文件夾。廢話很少說,直接上代碼:(這是一個工具類,idea親測可用!!)apache
import java.util.zip.ZipFile; import org.apache.tools.zip.*; import java.io.*; /********* 1.壓縮文件和文件夾 *******/ public static void zipFile(ZipOutputStream zipOutputStream, File file, String parentFileName) { FileInputStream in = null; try { org.apache.tools.zip.ZipEntry zipEntry = new org.apache.tools.zip.ZipEntry(parentFileName); // ZipEntry zipEntry = new ZipEntry(file.getName()); zipEntry.setTime(file.lastModified()); zipOutputStream.putNextEntry(zipEntry); in = new FileInputStream(file); int len; byte[] buf = new byte[8 * 1024]; while ((len = in.read(buf)) != -1) { zipOutputStream.write(buf, 0, len); } zipOutputStream.closeEntry(); } catch (FileNotFoundException e) { e.printStackTrace(); }catch (Exception e){ e.printStackTrace(); }finally { try { in.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 2.遞歸壓縮目錄結構 * * @param zipOutputStream * @param file * @param parentFileName */ public static void directory(org.apache.tools.zip.ZipOutputStream zipOutputStream, File file, String parentFileName) { File[] files = file.listFiles(); String parentFileNameTemp = null; for (File fileTemp : files) { String fileTempName = fileTemp.getName().substring(fileTemp.getName().indexOf(".") + 1); if(fileTempName.equals("zip")){ fileTemp.delete(); continue; } parentFileNameTemp = com.dy.core.sims.utils.StringUtils.isEmpty(parentFileName) ? fileTemp.getName() : parentFileName + "/" + fileTemp.getName(); if (fileTemp.isDirectory()) { directory(zipOutputStream, fileTemp, parentFileNameTemp); }else { zipFile(zipOutputStream, fileTemp, parentFileNameTemp); } } if(files.length==0){ try{ zipOutputStream.putNextEntry(new ZipEntry (getPath(file)+File.separator)); }catch (Exception e){ e.printStackTrace(); } } } //3.得到該文件在壓縮包中的相對路徑 public static String getPath (File f) { String str1 = f.getAbsolutePath(); int n1= str1.length(); String str2 = f.getAbsolutePath(); int n2= str2.length(); String str3 = f.getName(); int n3= str3.length(); String str = str2.substring(n1-n3, n2); return str; } /** * 4.壓縮文件目錄 * * @param source 源文件目錄(單個文件和多層目錄) * @param destit 目標目錄 */ public static Boolean compressFiles(String source, String destit) { //判斷路徑是否存在 String de=destit.substring(0, destit.lastIndexOf("//")+2); File targetFile=new File(source); File fileTarget=new File(de); if(!targetFile.exists() || !fileTarget.exists()){ return false; } File file = new File(source); org.apache.tools.zip.ZipOutputStream zipOutputStream = null; FileOutputStream fileOutputStream = null; try { fileOutputStream = new FileOutputStream(destit); zipOutputStream = new ZipOutputStream(fileOutputStream); if (file.isDirectory()) { directory(zipOutputStream, file, ""); } else { zipFile(zipOutputStream, file, ""); } } catch (Exception e) { e.printStackTrace(); } finally { try { zipOutputStream.close(); fileOutputStream.close(); } catch (IOException e) { e.printStackTrace(); } } return true; } /** * 測試 * * @param args */ public static void main(String[] args) { try{ Boolean flag=compressFiles("D://Excel//","D://Excel//aa.zip"); System.out.println(flag); }catch (Exception e){ e.printStackTrace(); } }