[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。

    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;            }        }