工具方法：
/**
* 新建文件(.zip)
* @param datas Map数组，key是文件名，byte[]是数据
* @param output 输出流
* @param charset 编码
*/
public static void zipStringToOutputStream(Map<String, byte[]> datas,
OutputStream output, String charset) {
ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(output));
Set<Entry<String, byte[]>> dataEntrys = datas.entrySet();
for (Entry<String, byte[]> data : dataEntrys) {
try {
Assert.hasText(data.getKey(), "写入文件对象为NULL或空");
Assert.notNull(data.getValue(), "写入文件【" + data.getKey() + "】的字符对象为NULL");
InputStream bufferIn = new BufferedInputStream( new ByteArrayInputStream(data.getValue()) );
byte[] bs = new byte[1024]; //容器1M
Arrays.fill(bs, (byte) 0);
zipout.putNextEntry(new ZipEntry(data.getKey()));//创建压缩文件内的文件
int len = -1;
while ((len = bufferIn.read(bs)) > 0) {//写入文件内容
zipout.write(bs, 0, len);
}
bufferIn.close();
} catch (Exception e) {
System.out.println("字符串ZIP流写入压缩文件【" + data.getKey() + "】失败，忽略该文件压缩：" + e.getMessage());
}
}
try {
zipout.close();
} catch (IOException e) {
System.out.println("ZIP流关闭异常：" + e.getMessage());
}
}
测试：
public static void main(String[] args) throws FileNotFoundException {
FileOutputStream fout = new FileOutputStream("F:/aaa.zip");
Map<String, byte[]> datas = new HashMap<String, byte[]>();
datas.put("111.txt", "asdasdadfasdgads".getBytes());
datas.put("222.txt", "asdasdadfasdgads".getBytes());
datas.put("333.txt", "asdasdadfasdgads".getBytes());
zipStringToOutputStream(datas , fout , "GBK");
}
结果：
