2、将WebRole的代码修改成如下所示：
public class WebRole : RoleEntryPoint
{
public override bool OnStart()
{
DiagnosticMonitor.Start ("BlobConnectionString");
CloudStorageAccount.SetConfigurationSettingPublisher((configName, configSetter) =>
{
configSetter (RoleEnvironment.GetConfigurationSettingValue(configName));
});
// get the blob connection string
CloudStorageAccount objStorage = CloudStorageAccount.FromConfigurationSetting ("BlobConnectionString");
// get the client reference
CloudBlobClient objClient = new CloudBlobClient(objStorage.BlobEndpoint, objStorage.Credentials);
// Get the reference to container
CloudBlobContainer objContainer = objClient.GetContainerReference("mycontainer");
// Create the container if it does not exist
objContainer.CreateIfNotExist();
RoleEnvironment.Changing += RoleEnvironmentChanging;
return base.OnStart();
}
private void RoleEnvironmentChanging(object sender, RoleEnvironmentChangingEventArgs e)
{
// If a configuration setting is changing
if (e.Changes.Any(change => change is RoleEnvironmentConfigurationSettingChange))
{
// Set e.Cancel to true to restart this role instance
e.Cancel = true;
}
}
}
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{
public override bool OnStart()
{
DiagnosticMonitor.Start ("BlobConnectionString");
CloudStorageAccount.SetConfigurationSettingPublisher((configName, configSetter) =>
{
configSetter (RoleEnvironment.GetConfigurationSettingValue(configName));
});
// get the blob connection string
CloudStorageAccount objStorage = CloudStorageAccount.FromConfigurationSetting ("BlobConnectionString");
// get the client reference
CloudBlobClient objClient = new CloudBlobClient(objStorage.BlobEndpoint, objStorage.Credentials);
// Get the reference to container
CloudBlobContainer objContainer = objClient.GetContainerReference("mycontainer");
// Create the container if it does not exist
objContainer.CreateIfNotExist();
RoleEnvironment.Changing += RoleEnvironmentChanging;
return base.OnStart();
}
private void RoleEnvironmentChanging(object sender, RoleEnvironmentChangingEventArgs e)
{
// If a configuration setting is changing
if (e.Changes.Any(change => change is RoleEnvironmentConfigurationSettingChange))
{
// Set e.Cancel to true to restart this role instance
e.Cancel = true;
}
}
}
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3、在页面上拖放几个控件，简单地布局如下：
▲
4、后台代码如下：
protected void Button1_Click(object sender, EventArgs e)
{
// Get the storage account reference
CloudStorageAccount objStorage = CloudStorageAccount.FromConfigurationSetting ("BlobConnectionString");
// get the Client reference using storage blobend point
CloudBlobClient objClient = new CloudBlobClient(objStorage.BlobEndpoint, objStorage.Credentials);
// Get Container reference
CloudBlobContainer objContainer = objClient.GetContainerReference("mycontainer");
// Get blob reference
CloudBlob obj = objContainer.GetBlobReference(FileUpload1.FileName.ToString());
// Set meta values
obj.Metadata["MetaName"] = "meta";
// Open a stream using the cloud object
BlobStream blobstream = obj.OpenWrite ();
// Write the stream to the blob database
blobstream.Write(FileUpload1.FileBytes, 0, FileUpload1.FileBytes.Count());
blobstream.Close();
// Browse through blob list from the container
IEnumerable<IListBlobItem> objBlobList = objContainer.ListBlobs();
foreach (IListBlobItem objItem in objBlobList)
{
Response.Write(objItem.Uri + "<br>");
}
}
protected void Button2_Click(object sender, EventArgs e)
{
// Get the storage account reference
CloudStorageAccount objStorage = CloudStorageAccount.FromConfigurationSetting ("BlobConnectionString");
// get the Client reference using storage blobend point
CloudBlobClient objClient = new CloudBlobClient(objStorage.BlobEndpoint, objStorage.Credentials);
// Get Container reference
CloudBlobContainer objContainer = objClient.GetContainerReference("mycontainer");
// Get the blob reference using the blob name provided in the search
CloudBlob obj = objContainer.GetBlobReference(txtSearch.Text);
BlobStream blobstream = obj.OpenRead ();
// Create the image object and display the same on the browser response
System.Drawing.Image objimg = null;
objimg = System.Drawing.Image.FromStream (blobstream, true);
Response.Clear();
Response.ContentType = "image/gif";
objimg.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
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{
// Get the storage account reference
CloudStorageAccount objStorage = CloudStorageAccount.FromConfigurationSetting ("BlobConnectionString");
// get the Client reference using storage blobend point
CloudBlobClient objClient = new CloudBlobClient(objStorage.BlobEndpoint, objStorage.Credentials);
// Get Container reference
CloudBlobContainer objContainer = objClient.GetContainerReference("mycontainer");
// Get blob reference
CloudBlob obj = objContainer.GetBlobReference(FileUpload1.FileName.ToString());
// Set meta values
obj.Metadata["MetaName"] = "meta";
// Open a stream using the cloud object
BlobStream blobstream = obj.OpenWrite ();
// Write the stream to the blob database
blobstream.Write(FileUpload1.FileBytes, 0, FileUpload1.FileBytes.Count());
blobstream.Close();
// Browse through blob list from the container
IEnumerable<IListBlobItem> objBlobList = objContainer.ListBlobs();
foreach (IListBlobItem objItem in objBlobList)
{
Response.Write(objItem.Uri + "<br>");
}
}
protected void Button2_Click(object sender, EventArgs e)
{
// Get the storage account reference
CloudStorageAccount objStorage = CloudStorageAccount.FromConfigurationSetting ("BlobConnectionString");
// get the Client reference using storage blobend point
CloudBlobClient objClient = new CloudBlobClient(objStorage.BlobEndpoint, objStorage.Credentials);
// Get Container reference
CloudBlobContainer objContainer = objClient.GetContainerReference("mycontainer");
// Get the blob reference using the blob name provided in the search
CloudBlob obj = objContainer.GetBlobReference(txtSearch.Text);
BlobStream blobstream = obj.OpenRead ();
// Create the image object and display the same on the browser response
System.Drawing.Image objimg = null;
objimg = System.Drawing.Image.FromStream (blobstream, true);
Response.Clear();
Response.ContentType = "image/gif";
objimg.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
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