/// <summary>
/// 客户端发送send请求会被触发，接收请求数据
/// </summary>
protected override void OnMessage(MessageEventArgs e)
{
String result = "打印成功！";
try
{
MessageEvent <String> data = JsonHelper.DeserializeJsonToObject <MessageEvent <String> >(e.Data);
string eventType = Convert.ToString(data.eventType).ToUpper();
string printType = Convert.ToString(data.printType).ToUpper();
string direction = Convert.ToString(data.direction);
string printerName = Convert.ToString(data.printerName);
string paperName = Convert.ToString(data.paperName);
string folderName = Guid.NewGuid().ToString(); //pdf转图片所存放的文件夹名称
string tempDir = Path.Combine(Directory.GetCurrentDirectory(), "tempImg"); //生成图片临时存放文件夹
string tempImageDir = Path.Combine(tempDir, folderName);
//string targetPath = Path.Combine(tempDir, fileName + ".jpg");
int width = data.width;
int height = data.height;
Boolean customSizeFlag = data.customSizeFlag;
WebRequest webreq = null;
WebResponse webres = null;
Boolean isUrl = HttpUtils.IsUrl(Convert.ToString(data.data));
string fileType = Convert.ToString(data.fileType).ToUpper();
#region
if (File.Exists(Convert.ToString(data.data))) //fileType由于IMCIS没有对应变量，data是路径文件名时取值为其后缀，否则当printType时“BASE64”也是JPG，否则就是HTML打印
{
fileType = Path.GetExtension(Convert.ToString(data.data)).Substring(1).ToUpper();
}
else if (isUrl) //网络文件，通过ContentType获取
{
webreq = WebRequest.Create(Convert.ToString(data.data));
webres = webreq.GetResponse();
string[] contentType = Convert.ToString(webres.ContentType).Split('/');
fileType = contentType.Length > 1 ? contentType[1].ToUpper() : fileType;
}
else
{
fileType = printType == "BASE64" ? "JPG" : "HTML";
}
#endregion
switch (fileType)
{
case "JPG":
case "JPEG":
case "PNG":
case "RAW":
case "BMP":
if (isUrl)
{
using (Stream stream = webres.GetResponseStream())
{
using (Image image = Image.FromStream(stream))
{
result = PrintUtils.PrintImage(image, eventType, direction, printerName, paperName);
}
}
}
else
{
result = printType == "FILEPATH" ?
PrintUtils.PreView(Convert.ToString(data.data), eventType, direction, printerName, paperName)
: PrintUtils.PrintImage(Convert.ToString(data.data), eventType, printType, direction, printerName, paperName);
}
break;
case "TXT":
PrintUtils.PrintTxt(Convert.ToString(data.data), printType);
break;
case "PDF":
string fileName = Path.GetFileNameWithoutExtension(data.data); //通过完整路径取得pdf文件名称作为jpg的文件名
if (isUrl)
{
using (Stream stream = webres.GetResponseStream())
{
MemoryStream ms = HttpUtils.StreamToMemoryStream(stream);
Pdf2JpgUtils.Pdf2Jpg(ms, Path.Combine(tempDir, fileName + ".jpg"), null, folderName);
}
}
else
{
Pdf2JpgUtils.Pdf2Jpg(Convert.ToString(data.data), Path.Combine(tempDir, fileName + ".jpg"), null, folderName);
}
if (eventType == "PRINT")
{
var files = Directory.GetFiles(tempImageDir).OrderBy(f => Convert.ToInt32(Path.GetFileNameWithoutExtension(f)));
foreach (var file in files)
{
result = PrintUtils.PrintImage(file, eventType, printType, direction, printerName, paperName);
}
try
{
//删除文件夹
Directory.Delete(tempImageDir, true);
}
catch (Exception ex)
{
result = string.Format("删除临时目录出错：{0};其他错误信息：{1}", tempImageDir, ex);
}
}
else if (eventType == "PREVIEW")
{
result = PrintUtils.PreView(tempImageDir, eventType, direction, printerName, paperName);
}
break;
case "HTML":
string tempPdf = Path.Combine(Directory.GetCurrentDirectory(), "tempPdf");
string tempPdfDir = Path.Combine(tempPdf, folderName);
Directory.CreateDirectory(tempPdfDir);
string tempPdfPath = Path.Combine(tempPdfDir, "Html2Pdf.pdf");
Html2PdfUtils.Html2Pdf(Convert.ToString(data.data).Trim(), tempPdfPath, paperName, direction);
Pdf2JpgUtils.Pdf2Jpg(tempPdfPath, Path.Combine(tempDir, "Html2Pdf.jpg"), null, folderName);
if (eventType == "PRINT")
{
var files = Directory.GetFiles(tempImageDir).OrderBy(f => Convert.ToInt32(Path.GetFileNameWithoutExtension(f)));
foreach (var file in files)
{
result = PrintUtils.PrintImage(file, eventType, printType, direction, printerName, paperName);
}
try
{
//删除临时文件夹
Directory.Delete(tempImageDir, true);
Directory.Delete(tempPdfDir, true);
}
catch (Exception ex)
{
result = string.Format("删除临时目录出错：{0};其他错误信息：{1}", tempPdfDir, ex);
}
}
else if (eventType == "PREVIEW")
{
result = PrintUtils.PreView(tempImageDir, eventType, direction, printerName, paperName);
}
break;
#region pdf不转图片直接打印
/*
* case "PDF":
* string fileName = Path.GetFileNameWithoutExtension(data.data); //通过完整路径取得pdf文件名称作为jpg的文件名
* if (eventType == "PRINT")
* {
* result = PrintUtils.PrintPdf(Convert.ToString(data.data), eventType, direction, printerName, paperName);
* }
* else if (eventType == "PREVIEW")
* {
* result = PrintUtils.PreViewPdf(Convert.ToString(data.data), eventType, direction, printerName, paperName);
* }
* break;
* case "HTML":
* string tempPdf = Path.Combine(Directory.GetCurrentDirectory(), "tempPdf");
* string tempPdfDir = Path.Combine(tempPdf, folderName);
* Directory.CreateDirectory(tempPdfDir);
* string tempPdfPath = Path.Combine(tempPdfDir, "Html2Pdf.pdf");
* Html2PdfUtils.Html2Pdf(Convert.ToString(data.data).Trim(), tempPdfPath, paperName, direction);
* if (eventType == "PRINT")
* {
* result = PrintUtils.PrintPdf(tempPdfPath, eventType, direction, printerName, paperName);
* }
* else if (eventType == "PREVIEW")
* {
* result = PrintUtils.PreViewPdf(tempPdfPath, eventType, direction, printerName, paperName);
* }
* try
* {
* //删除临时文件夹
* Directory.Delete(tempPdfDir, true);
* }
* catch (Exception ex)
* {
* result = string.Format("删除临时目录出错：{0};其他错误信息：{1}", tempPdfDir, ex);
* }
* break;
* */
#endregion
default:
result = "参数异常:fileType字段只能为jpg、pdf、html、getPrinterName、getPageSizes";
break;
}
}
catch (Exception ex)
{
result = "打印出错【" + ex.Message + "】";
}
Send(result);
}
/// <summary>
/// 客户端发送send请求会被触发，接收请求数据
/// </summary>
protected override void OnMessage(MessageEventArgs e)
{
String result = "打印成功！";
try
{
MessageEvent <String> data = JsonHelper.DeserializeJsonToObject <MessageEvent <String> >(e.Data);
string eventType = Convert.ToString(data.eventType).ToUpper();
string printType = Convert.ToString(data.printType).ToUpper();
string direction = Convert.ToString(data.direction);
string printerName = Convert.ToString(data.printerName);
string paperName = Convert.ToString(data.paperName);
string folderName = Guid.NewGuid().ToString(); //pdf转图片所存放的文件夹名称
string tempDir = Path.Combine(Directory.GetCurrentDirectory(), "tempImg"); //生成图片临时存放文件夹
string tempImageDir = Path.Combine(tempDir, folderName);
//string targetPath = Path.Combine(tempDir, fileName + ".jpg");
switch (Convert.ToString(data.fileType).ToUpper())
{
case "JPG":
if (eventType == "PRINT")
{
result = PrintUtils.PrintImage(Convert.ToString(data.data), printType, direction, printerName, paperName);
}
else if (eventType == "PREVIEW")
{
result = printType == "FILEPATH" ?
PrintUtils.PreView(Convert.ToString(data.data), eventType, direction, printerName, paperName)
: PrintUtils.PreViewByBase64(Convert.ToString(data.data), eventType, direction, printerName, paperName);
}
break;
case "TXT":
PrintUtils.PrintTxt(Convert.ToString(data.data), printType);
break;
case "PDF":
string fileName = Path.GetFileNameWithoutExtension(data.data); //通过完整路径取得pdf文件名称作为jpg的文件名
Pdf2JpgUtils.Pdf2Jpg(Convert.ToString(data.data), Path.Combine(tempDir, fileName + ".jpg"), null, folderName);
if (eventType == "PRINT")
{
foreach (var file in Directory.GetFiles(tempImageDir))
{
result = PrintUtils.PrintImage(file, printType, direction, printerName, paperName);
}
try
{
//删除文件夹
Directory.Delete(tempImageDir, true);
}
catch (Exception ex)
{
result = string.Format("删除临时目录出错：{0};其他错误信息：{1}", tempImageDir, ex);
}
}
else if (eventType == "PREVIEW")
{
result = PrintUtils.PreView(tempImageDir, eventType, direction, printerName, paperName);
}
break;
case "HTML":
string tempPdf = Path.Combine(Directory.GetCurrentDirectory(), "tempPdf");
string tempPdfDir = Path.Combine(tempPdf, folderName);
Directory.CreateDirectory(tempPdfDir);
string tempPdfPath = Path.Combine(tempPdfDir, "Html2Pdf.pdf");
Html2PdfUtils.Html2Pdf(Convert.ToString(data.data).Trim(), tempPdfPath, paperName, direction);
Pdf2JpgUtils.Pdf2Jpg(tempPdfPath, Path.Combine(tempDir, "Html2Pdf.jpg"), null, folderName);
if (eventType == "PRINT")
{
foreach (var file in Directory.GetFiles(tempImageDir))
{
result = PrintUtils.PrintImage(file, printType, direction, printerName, paperName);
}
try
{
//删除临时文件夹
Directory.Delete(tempImageDir, true);
Directory.Delete(tempPdfDir, true);
}
catch (Exception ex)
{
result = string.Format("删除临时目录出错：{0};其他错误信息：{1}", tempPdfDir, ex);
}
}
else if (eventType == "PREVIEW")
{
result = PrintUtils.PreView(tempImageDir, eventType, direction, printerName, paperName);
}
break;
case "GETPRINTERNAME":
result = PrintUtils.GetPrinterNames();
break;
case "GETPAGESIZES":
result = PrintUtils.GetPageSizesByName(Convert.ToString(data.data));
break;
default:
result = "参数异常:fileType字段只能为jpg、pdf、html、getPrinterName、getPageSizes";
break;
}
}
catch (Exception ex)
{
result = "打印出错【" + ex.Message + "】";
}
Send(result);
}