c#文件流上传图片
1、第一步 定义参数
//主表TableA
public class TableA
{
public List<TableB> AccidentImgByte { get; set; }
}
//子表TableB
public class TableB{
public Byte[] AccidentImgflow { get; set; }//文件流
public String AccidentImgName { get; set; }//文件名称
public String AccidentImgExt { get; set; }//文件格式
}
2、接口
public void AccidentImg_Request(TableA tModel){
string VisitImgFile = string.Empty;//图片路径
if (bmModel.AccidentImgByte != null)
{
foreach (var item in tModel.AccidentImgByte)
{
VisitImgFile += AttachmentUrl(item.AccidentImgflow, item.AccidentImgName, item.AccidentImgExt) + ",";
}
if (!String.IsNullOrEmpty(VisitImgFile ))
{
VisitImgFile = VisitImgFile.Substring(0, VisitImgFile.Length - 1);
}
}
}
/// <summary>
/// 图片处理方法
/// </summary>
/// <param name="fileNameAttachment">文件流</param>
/// <param name="fileName">文件名称</param>
/// <param name="fileExt">文件格式</param>
/// <returns></returns>
private String AttachmentUrl(Byte[] fileNameAttachment, string fileName, string fileExt)
{
String aUrl = System.Web.Configuration.WebConfigurationManager.AppSettings["web.config配置上传地址"];//服务器地址,用于返回服务器图片地址组合,如:http://x.x.x/
try
{
//写入目录
string attachmentPath = System.Web.Configuration.WebConfigurationManager.AppSettings["web.config配置上传地址"] + fileName + fileExt;
File.WriteAllBytes(attachmentPath, fileNameAttachment);
aUrl = aUrl + fileName + fileExt;//拼接返回地址 如:http://x.x.x/测试1.jpg
}
catch (Exception ex)
{
HX.BPM.Common.LogWriter.Write("日志", "BaggageMonitorAdd_Request", "行李监控流程发起处理异常", ex.Message);
aUrl = null;
}
return aUrl;
}
3、前端(外部)调用
private void button1_Click(object sender, EventArgs e)
{
TableA ta=new TableA();
ta.AccidentImgByte = new AttModel[2];//定义长度
byte[] aImag = FileContent(@"本地图片路径");
ta.AccidentImgByte[0]=new TableB() {
AccidentImgflow = aImag,
AccidentImgName = "测试1",
AccidentImgExt=".jpg"
};
aImag = FileContent(@"本地图片路径");
ta.AccidentImgByte[1] = new TableB()
{
AccidentImgflow = aImag,
AccidentImgName = "测试2",
AccidentImgExt = ".jpg"
};
var result = AccidentImg_Request(ta);
}
//文件转换成流
private static byte[] FileContent(string fileName)
{
FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
try
{
byte[] buffur = new byte[fs.Length];
fs.Read(buffur, 0, (int)fs.Length);
return buffur;
}
catch (Exception ex)
{
return null;
}
finally
{
if (fs != null)
fs.Close();
}
}
