[Java 常用类库]:StringCompress(字符串压缩)

[Java 常用类库]

StringCompress(字符串压缩)

方法说明：

1.compress(String):对字符串进行ZIP压缩饼返回字节数组

2.decompress(byte[]):将压缩的字节数组还原成字符串

用途：

保存到数据库BOLB中。

[java]
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

public class StringCompress {
    public static final byte[] compress(String paramString) {
        if (paramString == null)
            return null;
        ByteArrayOutputStream byteArrayOutputStream = null;
        ZipOutputStream zipOutputStream = null;
        byte[] arrayOfByte;
        try {
            byteArrayOutputStream = new ByteArrayOutputStream();
            zipOutputStream = new ZipOutputStream(byteArrayOutputStream);
            zipOutputStream.putNextEntry(new ZipEntry("0"));
            zipOutputStream.write(paramString.getBytes());
            zipOutputStream.closeEntry();
            arrayOfByte = byteArrayOutputStream.toByteArray();
        } catch (IOException localIOException5) {
            arrayOfByte = null;
        } finally {
            if (zipOutputStream != null)
                try {
                    zipOutputStream.close();
                } catch (IOException localIOException6) {
            }
            if (byteArrayOutputStream != null)
                try {
                    byteArrayOutputStream.close();
                } catch (IOException localIOException7) {
            }
        }
        return arrayOfByte;
    }

    @SuppressWarnings("unused")
    public static final String decompress(byte[] paramArrayOfByte) {
        if (paramArrayOfByte == null)
            return null;
        ByteArrayOutputStream byteArrayOutputStream = null;
        ByteArrayInputStream byteArrayInputStream = null;
        ZipInputStream zipInputStream = null;
        String str;
        try {
            byteArrayOutputStream = new ByteArrayOutputStream();
            byteArrayInputStream = new ByteArrayInputStream(paramArrayOfByte);
            zipInputStream = new ZipInputStream(byteArrayInputStream);
            ZipEntry localZipEntry = zipInputStream.getNextEntry();
            byte[] arrayOfByte = new byte[1024];
            int i = -1;
            while ((i = zipInputStream.read(arrayOfByte)) != -1)
                byteArrayOutputStream.write(arrayOfByte, 0, i);
            str = byteArrayOutputStream.toString();
        } catch (IOException localIOException7) {
            str = null;
        } finally {
            if (zipInputStream != null)
                try {
                    zipInputStream.close();
                } catch (IOException localIOException8) {
                }
            if (byteArrayInputStream != null)
                try {
                    byteArrayInputStream.close();
                } catch (IOException localIOException9) {
                }
            if (byteArrayOutputStream != null)
                try {
                    byteArrayOutputStream.close();
                } catch (IOException localIOException10) {
            }
        }
        return str;
    }
}

补充：软件开发 , Java ,