UploadAgent
Since 1.1.0
ZATS Mimic introduces the UploadAgent
to simulate file uploading operation and UploadAgent
supports single or multiple file uploading. The following are the usage steps:
- Obtain a
UploadAgent
object.- Depending on your case, you could get it from a Button or from desktop. Note that you should use the same object before calling
finish()
.
- Depending on your case, you could get it from a Button or from desktop. Note that you should use the same object before calling
- Upload a file by invoking
upload()
method. - Invoke
finish()
when there is no more file to upload.
Uploading Files for Components with upload
attribute
To implement an uploading feature, you can simply use the Fileupload component. Alternatively, you can choose to use a button components such as Button, Menuitem, Toolbarbutton and so on.[1] then set true
to upload
attribute of these components; users can then click and select a file to upload through a browser dialog, as illustrated below:
Notes
- ↑ For more details, please refer to ZK Developer's Reference/UI Patterns/File Upload and Download and ZK Component Reference/Essential Components/Fileupload
Upload a Single File
We can cast these components described above as UploadAgent
and perform file uploading. Following is a typical example of a single file uploading:
@Test
public void test() throws Exception {
File file = getFile();
DesktopAgent desktop = Zats.newClient().connect("/upload.zul");
UploadAgent agent = desktop.query("#btn").as(UploadAgent.class);
agent.upload(file, "text/plain");
agent.finish();
}
- Line 14: Cast component to
UploadAgent
and keep its reference. - Line 15: Invoke
upload()
method to upload a file. - Line 16: Don't forget to invoke
finish()
method.
Uploading Multiple Files
Since ZK 6.0.0, components now also support mutiple uploads at once if they have multiple=true
flag and users using web browsers supporting HTML5.[1] UploadAgent
also supports multiple files uploading at once. Following is a typical example of uploading multiple files:
@Test
public void test() throws Exception {
File[] files = getFiles();
DesktopAgent desktop = Zats.newClient().connect("/upload.zul");
UploadAgent agent = desktop.query("#btn").as(UploadAgent.class);
agent.upload(files[0], "text/plain");
agent.upload(files[1], "image/png");
agent.finish();
}
- Line 14: Cast component to UploadAgent and keep its reference.
- Line 15-16: We can upload multiple files at once with ZK version greater than 6.0.0 and components that have
multiple=true
flag. - Line 17: Don't forget to invoke
finish()
method.
Notes
- ↑ For more detail, please refer to ZK_Component_Reference/Essential_Components/Button#Upload
Uploading Files with Fileupload.get()
Another way to implement upload feature is to use the static method Fileupload.get() as an event handler.[1] This static method will open up an uploading dialog and allow users to upload single or multiple files (if configured), as shown in the image below:
<label id="label1" value="click label1 will invoke fileupload.get()" onClick="Fileupload.get();" />
<label id="label2" value="click label2 will invoke fileupload.get(3)" onClick="Fileupload.get(3);" />
In this case, we can retrieve UploadAgent
from DesktopAgent. Following is a typical example of file uploading with Fileupload.get():
@Test
public void test() throws Exception {
File[] files = getFiles();
DesktopAgent desktop = Zats.newClient().connect("/upload.zul");
desktop.query("#label2").click();
UploadAgent agent = desktop.as(UploadAgent.class);
agent.upload(files[0], "text/plain");
agent.upload(files[1], "image/png");
agent.finish();
}
- Line 14-15: After triggering an event leading to an uploading operation, we can cast DesktopAgent as a
UploadAgent
for uploading. - Line 16-17: We can also upload multiple files at once using Fileupload.get().
- Line 18: Don't forget to invoke
finish()
method.
Notes
- ↑ For more detail, please refer to ZK Component Reference/Essential Components/Fileupload#Invoke the Static Method: get
Supported Components
DesktopAgent | 5, 6 | |
Fileupload | 5, 6 | |
Button, Menuitem, Toolbarbutton | 5, 6 |