文件加密的一种方式-压缩

try {

FileInputStream in = new

FileInputStream("D://Firstwork//read.txt"); GZIPOutputStream out =

new GZIPOutputStream(new FileOutputStream(

"D://Firstwork//writer.txt")); System.out.println("===="); int c;

while ((c = in.read()) != -1) { out.write(c); // 写压缩文件 } in.close();

out.close(); } catch (Exception e) { e.printStackTrace(); }

//上面是进行文件压缩

try {

// 首先读取压缩包中的内容，并显示出来

BufferedReader reader = new BufferedReader(new InputStreamReader(

new GZIPInputStream(new FileInputStream(

"D://Firstwork//writer.txt"))));

String s;

while ((s = reader.readLine()) != null) {

System.out.println(s); // 读每一行，并显示出来

}

reader.close();

System.out.println("c:/test.gz--->c:/lovekuka.txt");

GZIPInputStream stream = new GZIPInputStream(new FileInputStream(

"D://Firstwork//writer.txt"));

FileOutputStream out = new FileOutputStream(

"D://Firstwork//writerzip.txt");

int c;

while ((c = stream.read()) != -1) {

out.write(c);

}

stream.close();

out.close();

} catch (Exception e) {

e.printStackTrace();

}