private void button2_Click(object sender, EventArgs e)
{
if (image != "")
{
string fileName = DateTime.Now.ToString("yyyyMMddhhmmss") + DateTime.Now.Millisecond.ToString();
//获取图片的扩展名
string Extent = System.IO.Path.GetExtension(openFileDialog1.FileName);
//重命名图片
fileName += Extent;
uploadmodel res = Upload_Request2("http://" + ServerInfo.ServerIP + ":7070/api/materiel/image", image, fileName, progressBar1);
if (res.code == 0)
{
MessageModel m = ctrl.addImage(new ImageModel(fileName, res.url, mid));
if (m.Code == 0)
{
lblState.Text = "已完成";
progressBar1.Value = int.MaxValue;
MessageBox.Show("保存成功！");
reset();
loadData(false);
}
}
else
{
MessageBox.Show(res.msg);
}
}
else
{
MessageBox.Show("请先选择图片。");
}
}
private void 除ToolStripMenuItem_Click(object sender, EventArgs e)
{
var fileName = listView1.SelectedItems[0].Text;
uploadmodel res = Delete_Request("http://" + ServerInfo.ServerIP + ":7070/api/materiel/del_image", fileName);
if (res.code == 0 || res.code == 20001)
{
MessageModel m = ctrl.delImage(new ImageModel(fileName, mid));
MessageBox.Show(m.Msg);
if (m.Code == 0)
{
loadData(false);
}
}
else
{
MessageBox.Show(res.msg);
}
}
private uploadmodel Delete_Request(string address, string delName)
{
uploadmodel returnValue = new uploadmodel();
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(address + "?name=" + delName);
request.Timeout = millisecond;
request.Method = "POST";
request.ContentLength = 0;
request.ServicePoint.Expect100Continue = false;
WebResponse response = (WebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string str = reader.ReadToEnd();
JObject obj = (JObject)JsonConvert.DeserializeObject(str);
returnValue = new uploadmodel(obj);
}
catch (Exception ex)
{
returnValue.msg = ex.ToString();
}
return(returnValue);
}
/// <summary>
/// 将本地文件上传到指定的服务器(HttpWebRequest方法)
/// </summary>
/// <param name="address">文件上传到的服务器</param>
/// <param name="fileNamePath">要上传的本地文件（全路径）</param>
/// <param name="saveName">文件上传后的名称</param>
/// <param name="progressBar">上传进度条</param>
/// <returns>成功返回0，失败返回1</returns>
private uploadmodel Upload_Request2(string address, string fileNamePath, string saveName, ProgressBar progressBar)
{
uploadmodel returnValue = new uploadmodel();
FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read); // 要上传的文件
BinaryReader r = new BinaryReader(fs);
string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x"); //时间戳
byte[] boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + strBoundary + "\r\n"); //请求头部信息
StringBuilder sb = new StringBuilder();
sb.Append("--");
sb.Append(strBoundary);
sb.Append("\r\n");
sb.Append("Content-Disposition: form-data; name=\"");
sb.Append("file");
sb.Append("\"; filename=\"");
sb.Append(saveName);
sb.Append("\";");
sb.Append("\r\n");
sb.Append("Content-Type: ");
sb.Append("application/octet-stream");
sb.Append("\r\n");
sb.Append("\r\n");
string strPostHeader = sb.ToString();
byte[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader);
HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(address));// 根据uri创建HttpWebRequest对象
httpReq.Method = "POST";
httpReq.AllowWriteStreamBuffering = false; //对发送的数据不使用缓存
httpReq.Timeout = millisecond; //设置获得响应的超时时间（300秒）
httpReq.ContentType = "multipart/form-data; boundary=" + strBoundary;
long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length;
long fileLength = fs.Length;
httpReq.ContentLength = length;
try
{
progressBar.Maximum = int.MaxValue;
progressBar.Minimum = 0;
progressBar.Value = 0;
//每次上传4k
int bufferLength = 4096;
byte[] buffer = new byte[bufferLength];
long offset = 0; //已上传的字节数
DateTime startTime = DateTime.Now; //开始上传时间
int size = r.Read(buffer, 0, bufferLength);
Stream postStream = httpReq.GetRequestStream();
postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);//发送请求头部消息
while (size > 0)
{
postStream.Write(buffer, 0, size);
offset += size;
progressBar.Value = (int)(offset * (int.MaxValue / length));
TimeSpan span = DateTime.Now - startTime;
double second = span.TotalSeconds;
lblTime.Text = "已用时：" + second.ToString("F2") + "秒";
if (second > 0.001)
{
lblSpeed.Text = "平均速度：" + (offset / 1024 / second).ToString("0.00") + "KB/秒";
}
else
{
lblSpeed.Text = " 正在连接…";
}
lblState.Text = "已上传：" + (offset * 100.0 / length).ToString("F2") + "%";
lblSize.Text = (offset / 1048576.0).ToString("F2") + "M/" + (fileLength / 1048576.0).ToString("F2") + "M";
Application.DoEvents();
size = r.Read(buffer, 0, bufferLength);
}
//添加尾部的时间戳
postStream.Write(boundaryBytes, 0, boundaryBytes.Length);
postStream.Close();
WebResponse webRespon = httpReq.GetResponse(); //获取服务器端的响应
Stream s = webRespon.GetResponseStream();
//读取服务器端返回的消息
StreamReader sr = new StreamReader(s);
String sReturnString = sr.ReadLine();
s.Close();
sr.Close();
JObject obj = (JObject)JsonConvert.DeserializeObject(sReturnString);
returnValue = new uploadmodel(obj);
}
catch
{
returnValue.msg = "上传失败！";
}
finally
{
fs.Close();
r.Close();
}
return(returnValue);
}
