嗯，就是將比較大的字符串進(jìn)行壓縮，使其占用空間小一點，一般用在有時候接口間需要傳輸大量數(shù)據(jù)的時候（json數(shù)據(jù)較大或者含有base64），縮小體積以加快傳輸小效率。
實現(xiàn)功能：
開發(fā)環(huán)境：
開發(fā)工具：Visual Studio 2013
.NET Framework版本：4.5
實現(xiàn)代碼：
string fileData = "", compress = ""; private void btnPath_Click(object sender, EventArgs e) { OpenFileDialog ofd = new OpenFileDialog(); if (ofd.ShowDialog() == DialogResult.OK) { textBox1.Text = ofd.FileName; FileInfo fi = new FileInfo(ofd.FileName); GetSize(fi.Length, lbFile); fileData = File.ReadAllText(ofd.FileName); } }
private void btnCompress_Click(object sender, EventArgs e) { compress = Compress(fileData); GetSize(Encoding.Default.GetBytes(compress).Length, lbCompress); MessageBox.Show("成功"); }
private void btnDecompress_Click(object sender, EventArgs e) { richTextBox1.Text = Decompress(compress); MessageBox.Show("成功");
}
public string Compress(string value) { try { string data = ""; byte[] byteArray = Encoding.Default.GetBytes(value); using (MemoryStream ms = new MemoryStream()) { using (GZipStream sw = new GZipStream(ms, CompressionMode.Compress)) { sw.Write(byteArray, 0, byteArray.Length); GetSize(ms.Length, lbCompress); }
data = Convert.ToBase64String(ms.ToArray()); } return data;
} catch (Exception ex) { throw ex; } }
public string Decompress(string value) { try { string data = ""; byte[] bytes = Convert.fromBase64String(value); using (MemoryStream msReader = new MemoryStream()) { using (MemoryStream ms = new MemoryStream(bytes)) { using (GZipStream zip = new GZipStream(ms, CompressionMode.Decompress)) { byte[] buffer = new byte[1024]; int readLen = 0; while ((readLen = zip.Read(buffer, 0, buffer.Length)) > 0) { msReader.Write(buffer, 0, readLen); }
} } data = Encoding.Default.GetString(msReader.ToArray()); } return data; } catch (Exception ex) { throw ex; } }
private void GetSize(long size, Control control) { string sizeStr = ""; if (size < 1024) sizeStr = size.ToString("F2") + " Byte"; else if (size >= 1024 && size < 1048576) sizeStr = (size / 1024).ToString("F2") + " K"; else if (size >= 1048576 && size < 1073741824) sizeStr = (size / 1024 / 1024).ToString("F2") + " M"; else if (size >= 1073741824) sizeStr = (size / 1024 / 1024 / 1024).ToString("F2") + " G"; control.Text = sizeStr; }
實現(xiàn)效果：
該文章在 2023/2/27 10:52:12 編輯過
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