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@@ -0,0 +1,151 @@
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+package com.winhc.task.util;
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+import java.io.File;
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+import java.io.FileInputStream;
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+import java.io.FileOutputStream;
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+import java.io.IOException;
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+import java.io.OutputStream;
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+import java.util.ArrayList;
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+import java.util.List;
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+import java.util.zip.ZipEntry;
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+import java.util.zip.ZipOutputStream;
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+
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+
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+public class ZipUtils {
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+
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+ private static final int BUFFER_SIZE = 2 * 1024;
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+
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+ /**
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+ * 压缩成ZIP 方法1
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+ * @param srcDir 压缩文件夹路径
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+ * @param out 压缩文件输出流
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+ * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
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+ * false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
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+ * @throws RuntimeException 压缩失败会抛出运行时异常
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+ */
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+ public static void toZip(String srcDir, OutputStream out, boolean KeepDirStructure)
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+ throws RuntimeException{
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+
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+ long start = System.currentTimeMillis();
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+ ZipOutputStream zos = null ;
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+ try {
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+ zos = new ZipOutputStream(out);
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+ File sourceFile = new File(srcDir);
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+ compress(sourceFile,zos,sourceFile.getName(),KeepDirStructure);
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+ long end = System.currentTimeMillis();
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+ System.out.println("压缩完成，耗时：" + (end - start) +" ms");
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+ } catch (Exception e) {
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+ throw new RuntimeException("zip error from ZipUtils",e);
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+ }finally{
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+ if(zos != null){
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+ try {
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+ zos.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ }
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+
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+ }
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+
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+ /**
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+ * 压缩成ZIP 方法2
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+ * @param srcFiles 需要压缩的文件列表
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+ * @param out 压缩文件输出流
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+ * @throws RuntimeException 压缩失败会抛出运行时异常
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+ */
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+ public static void toZip(List<File> srcFiles , OutputStream out)throws RuntimeException {
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+ long start = System.currentTimeMillis();
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+ ZipOutputStream zos = null ;
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+ try {
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+ zos = new ZipOutputStream(out);
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+ for (File srcFile : srcFiles) {
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+ byte[] buf = new byte[BUFFER_SIZE];
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+ zos.putNextEntry(new ZipEntry(srcFile.getName()));
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+ int len;
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+ FileInputStream in = new FileInputStream(srcFile);
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+ while ((len = in.read(buf)) != -1){
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+ zos.write(buf, 0, len);
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+ }
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+ zos.closeEntry();
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+ in.close();
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+ }
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+ long end = System.currentTimeMillis();
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+ System.out.println("压缩完成，耗时：" + (end - start) +" ms");
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+ } catch (Exception e) {
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+ throw new RuntimeException("zip error from ZipUtils",e);
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+ }finally{
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+ if(zos != null){
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+ try {
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+ zos.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ }
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+ }
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+
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+
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+ /**
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+ * 递归压缩方法
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+ * @param sourceFile 源文件
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+ * @param zos zip输出流
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+ * @param name 压缩后的名称
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+ * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
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+ * false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
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+ * @throws Exception
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+ */
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+ private static void compress(File sourceFile, ZipOutputStream zos, String name,
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+ boolean KeepDirStructure) throws Exception{
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+ byte[] buf = new byte[BUFFER_SIZE];
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+ if(sourceFile.isFile()){
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+ // 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
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+ zos.putNextEntry(new ZipEntry(name));
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+ // copy文件到zip输出流中
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+ int len;
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+ FileInputStream in = new FileInputStream(sourceFile);
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+ while ((len = in.read(buf)) != -1){
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+ zos.write(buf, 0, len);
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+ }
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+ // Complete the entry
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+ zos.closeEntry();
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+ in.close();
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+ } else {
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+ File[] listFiles = sourceFile.listFiles();
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+ if(listFiles == null || listFiles.length == 0){
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+ // 需要保留原来的文件结构时,需要对空文件夹进行处理
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+ if(KeepDirStructure){
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+ // 空文件夹的处理
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+ zos.putNextEntry(new ZipEntry(name + "/"));
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+ // 没有文件，不需要文件的copy
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+ zos.closeEntry();
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+ }
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+
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+ }else {
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+ for (File file : listFiles) {
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+ // 判断是否需要保留原来的文件结构
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+ if (KeepDirStructure) {
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+ // 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
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+ // 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
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+ compress(file, zos, name + "/" + file.getName(),KeepDirStructure);
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+ } else {
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+ compress(file, zos, file.getName(),KeepDirStructure);
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+ }
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+
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+ }
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+ }
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+ }
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+ }
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+
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+ public static void main(String[] args) throws Exception {
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+ /** 测试压缩方法1 */
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+ FileOutputStream fos1 = new FileOutputStream(new File("D:\\tmp\\data\\test.zip"));
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+ ZipUtils.toZip("D:\\tmp\\data\\20221115\\", fos1,true);
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+
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+// /** 测试压缩方法2 */
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+// List<File> fileList = new ArrayList<>();
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+// fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/jar.exe"));
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+// fileList.add(new File("D:/Java/jdk1.7.0_45_64bit/bin/java.exe"));
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+// FileOutputStream fos2 = new FileOutputStream(new File("c:/mytest02.zip"));
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+// ZipUtils.toZip(fileList, fos2);
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+ }
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+}
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xufei