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Commit b7bbaf2d authored by 黄奎's avatar 黄奎
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页面修改

parent 505a666a
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Showing with 61 additions and 19 deletions
Edu.Common/Plugin/IImageHelper.cs
View file @ b7bbaf2d
......@@ -3,6 +3,7 @@ using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Net;
namespace Edu.Common.Plugin
{
......@@ -11,12 +12,15 @@ namespace Edu.Common.Plugin
/// </summary>
public class ImageHelper
{
/// <summary>
/// 生成图片
/// </summary>
/// <param name="sourceFile">源文件地址</param>
/// <param name="targetFile">目标文件路径</param>
/// <returns></returns>
/**
* 生成图片
* string targetFile = @"F:/Test/temp/";
* ImageHelper.CreateImage("F:/Test/1.docx", targetFile);
* ImageHelper.CreateImage("F:/Test/2.pdf", targetFile);
* ImageHelper.CreateImage("F:/Test/3.ppt", targetFile);
* ImageHelper.CreateImage("F:/Test/4.xls", targetFile);
*/
public static List<string> CreateImage(string sourceFile, string targetFile)
{
IImageHelper imageHelper = null;
......@@ -48,6 +52,38 @@ namespace Edu.Common.Plugin
}
return imageHelper.CreateImage(sourceFile, targetFile);
}
/// <summary>
/// 生成图片
/// </summary>
/// <param name="url"></param>
public static void CreateImage(string url)
{
string tempPath =Common.Config.GetFileUrl(url);
string path = Environment.CurrentDirectory + tempPath;//下载到的地址+文件名
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream responseStream = response.GetResponseStream();
string newFilePath = path.Substring(0, path.LastIndexOf("/"));
if (!System.IO.Directory.Exists(newFilePath))//如果不存在就创建file文件夹
{
System.IO.Directory.CreateDirectory(newFilePath);
}
//创建本地文件写入流
Stream stream = new FileStream(path, FileMode.Create);
byte[] bArr = new byte[1024];
int size = responseStream.Read(bArr, 0, (int)bArr.Length);
while (size > 0)
{
stream.Write(bArr, 0, size);
size = responseStream.Read(bArr, 0, (int)bArr.Length);
}
stream.Close();
responseStream.Close();
}
}
/// <summary>
......@@ -60,8 +96,9 @@ namespace Edu.Common.Plugin
/// </summary>
/// <param name="sourceFile">源文件地址</param>
/// <param name="targetFile">目标文件路径</param>
/// <param name="prefix">生成文件前缀</param>
/// <returns></returns>
List<string> CreateImage(string sourceFile, string targetFile);
List<string> CreateImage(string sourceFile, string targetFile, string prefix = "");
}
/// <summary>
......@@ -74,8 +111,9 @@ namespace Edu.Common.Plugin
/// </summary>
/// <param name="sourceFile">源文件地址</param>
/// <param name="targetFile">目标文件路径</param>
/// <param name="prefix">生成文件前缀</param>
/// <returns></returns>
public List<string> CreateImage(string sourceFile, string targetFile)
public List<string> CreateImage(string sourceFile, string targetFile, string prefix = "")
{
List<string> list = new List<string>();
try
......@@ -84,7 +122,7 @@ namespace Edu.Common.Plugin
xls.LoadFromFile(sourceFile, Spire.Xls.ExcelVersion.Version97to2003);
string tempPdf = targetFile + "xls_temp_" + DateTime.Now.Ticks + ".pdf";
xls.SaveToFile(tempPdf, Spire.Xls.FileFormat.PDF);
list = new PdfToImage().CreateImage(tempPdf, targetFile);
list = new PdfToImage().CreateImage(tempPdf, targetFile, prefix: "xls_");
File.Delete(tempPdf);
}
catch (Exception ex)
......@@ -105,8 +143,9 @@ namespace Edu.Common.Plugin
/// </summary>
/// <param name="sourceFile">源文件地址</param>
/// <param name="targetFile">目标文件路径</param>
/// <param name="prefix">生成文件前缀</param>
/// <returns></returns>
public List<string> CreateImage(string sourceFile, string targetFile)
public List<string> CreateImage(string sourceFile, string targetFile, string prefix = "")
{
List<string> list = new List<string>();
try
......@@ -143,23 +182,24 @@ namespace Edu.Common.Plugin
/// 生成图片地址
/// </summary>
/// <param name="sourceFile">源文件地址</param>
/// <param name="targetFile">目标文件路径</param>>
/// <param name="targetFile">目标文件路径</param>
/// <param name="prefix">生成文件前缀</param>
/// <returns></returns>
public List<string> CreateImage(string sourceFile, string targetFile)
public List<string> CreateImage(string sourceFile, string targetFile, string prefix = "")
{
List<string> list = new List<string>();
string license = AppContext.BaseDirectory + @"ExtPlug\Aspose.Total.lic";
try
{
//加载证书
Aspose.Pdf.License license2 = new Aspose.Pdf.License();
license2.SetLicense(license);
Aspose.Pdf.Document document = new Aspose.Pdf.Document(sourceFile);
//默认质量为100，设置质量的好坏与处理速度不成正比，甚至是设置的质量越低反而花的时间越长，怀疑处理过程是先生成高质量的再压缩
var device = new Aspose.Pdf.Devices.PngDevice();
//遍历每一页转为PNG
for (var i = 1; i <= document.Pages.Count; i++)
{
string filePathOutPut = targetFile + "pdf_" + i + "_" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".png";
string filePathOutPut = targetFile + (!string.IsNullOrWhiteSpace(prefix) ? prefix : "pdf_") + i + "_" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".png";
FileStream fs = new FileStream(filePathOutPut, FileMode.OpenOrCreate);
try
{
......@@ -192,8 +232,9 @@ namespace Edu.Common.Plugin
/// </summary>
/// <param name="sourceFile">源文件地址</param>
/// <param name="targetFile">目标文件路径</param>
/// <param name="prefix">生成文件前缀</param>
/// <returns></returns>
public List<string> CreateImage(string sourceFile, string targetFile)
public List<string> CreateImage(string sourceFile, string targetFile, string prefix = "")
{
List<string> list = new List<string>();
try
......@@ -204,8 +245,9 @@ namespace Edu.Common.Plugin
for (int i = 0; i < ppt.Slides.Count; i++)
{
string newFilePath = string.Format(targetFile + "ppt_" + i + "_" + @"{0}.png", DateTime.Now.ToString("yyyyMMddHHmmssfff"));
Image image = ppt.Slides[i].SaveAsImage();//读取emf格式图片
image.Save(newFilePath, ImageFormat.Png);//把emf格式的图片转换成Png格式
//保存为PNG图片
Image image = ppt.Slides[i].SaveAsImage();
image.Save(newFilePath, ImageFormat.Png);
list.Add(newFilePath);
}
ppt.Dispose();
......
Edu.WebApi/Controllers/Course/CourseController.cs
View file @ b7bbaf2d
......@@ -82,11 +82,11 @@ namespace Edu.WebApi.Controllers.Course
var cateIds= base.ParmJObj.GetStringValue("cateIds");
var list = categoryModule.GetChildCategoryStringModule(cateIds);
string targetFile = @"F:/Test/temp/";
//string targetFile = @"F:/Test/temp/";
//ImageHelper.CreateImage("F:/Test/1.docx", targetFile);
//ImageHelper.CreateImage("F:/Test/2.pdf", targetFile);
//ImageHelper.CreateImage("F:/Test/3.ppt", targetFile);
ImageHelper.CreateImage("F:/Test/4.xls", targetFile);
//ImageHelper.CreateImage("F:/Test/4.xls", targetFile);
return ApiResult.Success(data: list);
}
......
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