/// <summary>
/// 执行带文件上传的HTTP POST请求。
/// </summary>
/// <param name="url">请求地址</param>
/// <param name="textParams">请求文本参数</param>
/// <param name="fileParams">请求文件参数</param>
/// <returns>HTTP响应</returns>
public string DoPost(string url, IDictionary <string, string> textParams, IDictionary <string, HttpPostedFile> fileParams)
{
// 如果没有文件参数，则走普通POST请求
if (fileParams == null || fileParams.Count == 0)
{
return(DoPost(url, textParams));
}
string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
HttpWebRequest req = GetWebRequest(url, "POST");
req.ContentType = "multipart/form-data;charset=utf-8;boundary=" + boundary;
System.IO.Stream reqStream = req.GetRequestStream();
byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");
byte[] endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
// 组装文本请求参数
string textTemplate = "Content-Disposition:form-data;name=\"{0}\"\r\nContent-Type:text/plain\r\n\r\n{1}";
IEnumerator <KeyValuePair <string, string> > textEnum = textParams.GetEnumerator();
while (textEnum.MoveNext())
{
string textEntry = string.Format(textTemplate, textEnum.Current.Key, textEnum.Current.Value);
byte[] itemBytes = Encoding.UTF8.GetBytes(textEntry);
reqStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
reqStream.Write(itemBytes, 0, itemBytes.Length);
}
// 组装文件请求参数
string fileTemplate = "Content-Disposition:form-data;name=\"{0}\";filename=\"{1}\"\r\nContent-Type:{2}\r\n\r\n";
IEnumerator <KeyValuePair <string, HttpPostedFile> > fileEnum = fileParams.GetEnumerator();
while (fileEnum.MoveNext())
{
string key = fileEnum.Current.Key;
HttpPostedFile fileItem = fileEnum.Current.Value;
string fileEntry = string.Format(fileTemplate, key, fileItem.FileName, fileItem.GetType());
byte[] itemBytes = Encoding.UTF8.GetBytes(fileEntry);
reqStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
reqStream.Write(itemBytes, 0, itemBytes.Length);
byte[] fileBytes = new byte[fileItem.ContentLength];
using (System.IO.Stream fileStream = fileItem.InputStream)
{
byte[] Bytes = new byte[fileItem.ContentLength];
fileStream.Read(Bytes, 0, Bytes.Length);
fileBytes = Bytes;
}
reqStream.Write(fileBytes, 0, fileBytes.Length);
}
reqStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
reqStream.Close();
HttpWebResponse rsp = (HttpWebResponse)req.GetResponse();
Encoding encoding = Encoding.GetEncoding(rsp.CharacterSet);
return(GetResponseAsString(rsp, encoding));
}
public void updateTeacher()
{
try
{
Teacher Teacher = new Teacher();
setValue(Teacher, context);
HttpPostedFile hpf = context.Request.Files["headImgFile"];
if (hpf != null)
{
string savepath = context.Server.MapPath("/uploadFile/headImg/" + Teacher.Id + "." + hpf.GetType()); //路径,相对于服务器当前的路径
hpf.SaveAs(savepath); //保存
Teacher.HeadImage = savepath;
}
TeacherService s = new TeacherService();
s.save(Teacher);
context.Response.Write("1");
}
catch (Exception e)
{
context.Response.Write("0");
}
}
public void updateStudent()
{
try
{
Student student = new Student();
setValue(student, context);
HttpPostedFile hpf = context.Request.Files["headImgFile"];
if (hpf != null)
{
string savepath = context.Server.MapPath("/uploadFile/headImg/" + student.Id + "." + hpf.GetType()); //路径,相对于服务器当前的路径
hpf.SaveAs(savepath); //保存
student.HeadImage = savepath;
}
DepartmentService ds = new DepartmentService();
string professionID = context.Request.Form.Get("Profession");
if (!string.IsNullOrEmpty(professionID))
{
Profession profession = ds.getProfessionByID(professionID);
if (profession != null)
{
student.Profession = profession;
}
}
string ClassGradeID = context.Request.Form.Get("ClassGrade");
if (!string.IsNullOrEmpty(ClassGradeID))
{
ClassGrade classGrade = ds.getClassGradeByID(ClassGradeID);
if (classGrade != null)
{
student.ClassGrade = classGrade;
}
}
StudentService s = new StudentService();
s.save(student);
context.Response.Write("1");
}
catch (Exception e)
{
context.Response.Write("0");
}
}
