[英]Using convertapi in Windows Store App
我正在Windows商店App项目中试用Convertapi ,我想发送一个.docx文件并获取pdf文件作为回报,我正在尝试发布,但我不确定如何完成,这是我到目前为止的工作,但无法正常工作。
private async Task GeneratePdfContract(string path) {
try {
var data = new List < KeyValuePair < string, string >> {
new KeyValuePair < string, string > ("Api", "5"),
new KeyValuePair < string, string > ("ApiKey", "419595049"),
new KeyValuePair < string, string > ("File", "" + stream2),
};
await PostKeyValueData(data);
} catch (Exception e) {
Debug.WriteLine(e.Message);
}
}
private async Task PostKeyValueData(List < KeyValuePair < string, string >> values) {
var httpClient = new HttpClient();
var response = await httpClient.PostAsync("http://do.convertapi.com/Word2Pdf", new FormUrlEncodedContent(values));
var responseString = await response.Content.ReadAsStringAsync();
}
我该如何发送帖子以发送.docx文件并获取.pdf文件作为回报?
编辑:
private async Task GeneratePdfContract(string path)
{
try
{
using (var client = new System.Net.Http.HttpClient())
{
using (var multipartFormDataContent = new MultipartFormDataContent())
{
var values = new[]
{
new KeyValuePair<string, string>("ApiKey", "413595149")
};
foreach (var keyValuePair in values)
{
multipartFormDataContent.Add(new StringContent(keyValuePair.Value), String.Format("\"{0}\"", keyValuePair.Key));
}
StorageFolder currentFolder = await ApplicationData.Current.LocalFolder.GetFolderAsync(Constants.DataDirectory);
StorageFile outputFile = await currentFolder.GetFileAsync("file.docx");
byte[] fileBytes = await outputFile.ToBytes();
//multipartFormDataContent.Add(new ByteArrayContent(FileIO.ReadBufferAsync(@"C:\test.docx")), '"' + "File" + '"', '"' + "test.docx" + '"');
multipartFormDataContent.Add(new ByteArrayContent(fileBytes));
const string requestUri = "http://do.convertapi.com/word2pdf";
var response = await client.PostAsync(requestUri, multipartFormDataContent);
if (response.IsSuccessStatusCode)
{
var responseHeaders = response.Headers;
var paths = responseHeaders.GetValues("OutputFileName").First();
var path2 = Path.Combine(@"C:\", paths);
StorageFile sampleFile = await ApplicationData.Current.LocalFolder.CreateFileAsync(@"C:\Users\Thought\AppData\Local\Packages\xxxxx_apk0zz032bzya\LocalState\Data\");
await FileIO.WriteBytesAsync(sampleFile, await response.Content.ReadAsByteArrayAsync());
}
else
{
Debug.WriteLine("Status Code : {0}", response.StatusCode);
Debug.WriteLine("Status Description : {0}", response.ReasonPhrase);
}
}
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
}
@Tomas试图稍微调整一下您的答案,因为在Windows应用商店中似乎没有“ File.ReadAllBytes”,因此我收到了以下响应:
您不能将文件流作为字符串传递给HttpClient。 只需使用WebClient.UploadFile方法即可,该方法还支持异步上传。
using (var client = new WebClient())
{
var fileToConvert = "c:\file-to-convert.docx";
var data = new NameValueCollection();
data.Add("ApiKey", "413595149");
try
{
client.QueryString.Add(data);
var response = client.UploadFile("http://do.convertapi.com/word2pdf", fileToConvert);
var responseHeaders = client.ResponseHeaders;
var path = Path.Combine(@"C:\", responseHeaders["OutputFileName"]);
File.WriteAllBytes(path, response);
Console.WriteLine("The conversion was successful! The word file {0} converted to PDF and saved at {1}", fileToConvert, path);
}
catch (WebException e)
{
Console.WriteLine("Exception Message :" + e.Message);
if (e.Status == WebExceptionStatus.ProtocolError)
{
Console.WriteLine("Status Code : {0}", ((HttpWebResponse)e.Response).StatusCode);
Console.WriteLine("Status Description : {0}", ((HttpWebResponse)e.Response).StatusDescription);
}
}
}
使用HttpClient()
的示例
using (var client = new System.Net.Http.HttpClient())
{
using (var multipartFormDataContent = new MultipartFormDataContent())
{
var values = new[]
{
new KeyValuePair<string, string>("ApiKey", "YourApiKey")
};
foreach (var keyValuePair in values)
{
multipartFormDataContent.Add(new StringContent(keyValuePair.Value), String.Format("\"{0}\"", keyValuePair.Key));
}
multipartFormDataContent.Add(new ByteArrayContent(File.ReadAllBytes(@"C:\test.docx")), '"' + "File" + '"', '"' + "test.docx" + '"');
const string requestUri = "http://do.convertapi.com/word2pdf";
var response = await client.PostAsync(requestUri, multipartFormDataContent);
if (response.IsSuccessStatusCode)
{
var responseHeaders = response.Headers;
var paths = responseHeaders.GetValues("OutputFileName").First();
var path = Path.Combine(@"C:\", paths);
File.WriteAllBytes(path, await response.Content.ReadAsByteArrayAsync());
}
else
{
Console.WriteLine("Status Code : {0}", response.StatusCode);
Console.WriteLine("Status Description : {0}", response.ReasonPhrase);
}
}
}
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