In order to upload images to a web service that requires a Multipart request, the below code will create the file part object and include it as part of the MultiPartRequest entity. I store this method in a separate class and call it statically from within an AsyncTask. This type of functionality is particularly useful for when you want to upload a user's profile photo and store it on your remote file system.
The following Apache libraries are required:
- commons-codec.jar (version used: 1.3)
- commons-httpclient.jar (version used: 3.0-rc4)
- commons-logging.jar
[code language="java"]
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.multipart.ByteArrayPartSource;
import org.apache.commons.httpclient.methods.multipart.FilePart;
import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
import org.apache.commons.httpclient.methods.multipart.Part;
static boolean doImageUpload(final byte[] imageData, String fileName) throws Exception {
String responseString = null;
PostMethod method = new PostMethod(<remote url>);
HttpClient client = new HttpClient();
client.getHttpConnectionManager().getParams().setConnectionTimeout(100000);
FilePart photo = new FilePart("file-data", new ByteArrayPartSource(fileName, imageData));
photo.setContentType("image/jpeg");
photo.setCharSet(null);
Part[] parts = {photo};
method.setRequestEntity(new MultipartRequestEntity(parts, method.getParams()));
client.executeMethod(method);
responseString = method.getResponseBodyAsString();
method.releaseConnection();
if (responseString.equals(<successful response>)) {
return true;
} else {
return false;
}
}
[/code]
Have you done this a different way? Leave a comment below.
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