新增：利用Zip进行多文件保存

Author: JeffLi1993

src/org/javacore/io/zip/ZipCompress.java

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+package org.javacore.io.zip;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.Enumeration;
+import java.util.zip.Adler32;
+import java.util.zip.CheckedInputStream;
+import java.util.zip.CheckedOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+/*
+ * Copyright [2015] [Jeff Lee]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @author Jeff Lee
+ * @since 2015-10-17 14:58:59
+ *  利用Zip进行多文件保存
+ */
+public class ZipCompress {
+    private static String filePath = "src" + File.separator +
+            "org" + File.separator +
+            "javacore" + File.separator +
+            "io" + File.separator;
+
+    private static String[]  fileNames= new String[] {
+        filePath + "BufferedInputFileT.java",
+        filePath + "ChangeSystemOut.java"
+    };
+
+    public static void main(String[] args) throws IOException {
+        zipFiles(fileNames);
+    }
+
+    private static void zipFiles(String[] fileNames)
+            throws IOException {
+        // 获取zip文件输出流
+        FileOutputStream f = new FileOutputStream("test.zip");
+        // 从文件输出流中获取数据校验和输出流,并设置Adler32
+        CheckedOutputStream csum = new CheckedOutputStream(f,new Adler32());
+        // 从数据校验和输出流中获取Zip输出流
+        ZipOutputStream zos = new ZipOutputStream(csum);
+        // 从Zip输出流中获取缓冲输出流
+        BufferedOutputStream out = new BufferedOutputStream(zos);
+        // 设置Zip文件注释
+        zos.setComment("测试 java zip stream");
+        for (String file : fileNames) {
+            System.out.println("写入文件: " + file);
+            // 获取文件输入字符流
+            BufferedReader in =
+                    new BufferedReader(new FileReader(file));
+            // 想Zip处理写入新的文件条目，并流定位到数据开始处
+            zos.putNextEntry(new ZipEntry(file));
+            int c;
+            while ((c = in.read()) > 0)
+                out.write(c);
+            in.close();
+            // 刷新Zip输出流，将缓冲的流写入该流
+            out.flush();
+        }
+        // 文件全部写入Zip输出流后，关闭
+        out.close();
+
+        // 输出数据校验和
+        System.out.println("数据校验和: " + csum.getChecksum().getValue());
+        System.out.println("读取zip文件");
+        // 读取test.zip文件输入流
+        FileInputStream fi = new FileInputStream("test.zip");
+        // 从文件输入流中获取数据校验和流
+        CheckedInputStream csumi = new CheckedInputStream(fi,new Adler32());
+        // 从数据校验和流中获取Zip解压流
+        ZipInputStream in2 = new ZipInputStream(csumi);
+        // 从Zip解压流中获取缓冲输入流
+        BufferedInputStream bis = new BufferedInputStream(in2);
+        // 创建文件条目
+        ZipEntry zipEntry;
+        while ((zipEntry = in2.getNextEntry()) != null) {
+            System.out.println("读取文件： " + zipEntry);
+            int x;
+            while ((x = bis.read()) > 0)
+                System.out.write(x);
+        }
+        if (fileNames.length == 1)
+            System.out.println("数据校验和： " + csumi.getChecksum().getValue());
+        bis.close();
+
+        // 获取Zip文件
+        ZipFile zf = new ZipFile("test.zip");
+        // 获取文件条目枚举
+        Enumeration e = zf.entries();
+        while (e.hasMoreElements()) {
+            // 从Zip文件的枚举中获取文件条目
+            ZipEntry ze2 = (ZipEntry) e.nextElement();
+            System.out.println("文件： " + ze2);
+        }
+
+    }
+}