Comments(0) I developed a Java Web Service project on my local box. It has been working fine with my testing. Now I need to deploy this project to a remote server, which will be assigned a static domain name for our department. I searched everywhere, and finally find the following ways to deploy a web project.
Comments(2) In a typical J2EE project, we put the application level initial parameter in context-param tag in web.xml, such as database configuration, administrator’s email address, etc.
The values within the
String value = getServletContext().getInitParameter("name_of_context_initialization_parameter");
When dealing with Web Service, the same problem comes up.
Comments(0) I talked this topic in my previous post. Now I have completed the Centralized Document Transfer and Sharing System. I found that it’s not that useful to put my code here. Only how to solve the problem is worth to write. I use the Netbeans to build this application which is very fast. Netbeans is a great tool to build web service. Here are the steps to make the application run.
1. Use FTP to upload a file. Set up an FTP server first using FileZilla. Open a count for a client to connect and upload files.
2. Use Netbeans to build web service which can store file’s information including: file name, version number, file type, and all file information. You will need a database to store those informations. The following is the database diagram.
Comments(0) The following is the requirement summary for building a new centralized file management system (FMS):
1. After merging the central FMS, each individual system will use web service to connect to it. And all files and related information will be put in a central place.
2. The central should have the following functions:
a. Authenticate
b. Upload (with all related information, such as file name, version number and category)
c. Update (reversion)
d. ListFile (all versions of a file)
e. Download
f. Delete
g. Rename
h. AccessVerify
3. Let each system change as few as possible, when merging the central FMS.
To issustrate the situation, please read the following diagram.
fms requirement Analysis
Comments(4) The following is the PHP code for uploading files using Alfresco Web Service. I put some comments inside the code. If there is anything confuses you, please leave your comment and I hope I can help.
if (isset($_SERVER["ALF_AVAILABLE"]) == false) { require_once "./alfresco_sdk/remote/Alfresco/Service/Repository.php"; require_once "./alfresco_sdk/remote/Alfresco/Service/Session.php"; require_once "./alfresco_sdk/remote/Alfresco/Service/SpacesStore.php"; require_once "./alfresco_sdk/remote/Alfresco/Service/ContentData.php"; } $repositoryUrl = "http://localhost:8080/alfresco/api"; $userName = "admin"; $password = "admin"; // Authenticate the user and create a session $repository = new Repository($repositoryUrl); $ticket = $repository->authenticate($userName, $password); $session = $repository->createSession($ticket); // Create a reference to the 'SpacesStore' $spacesStore = new SpacesStore($session); $dir_name = "s".$irbID; // Use a serach to get the guest home space we will use to place the new content in $nodes = $session->query($spacesStore, "PATH:\"app:company_home/cm:testing/cm:$dir_name\""); if(!empty($nodes)){ echo "good, no need to do anything."; }else{ $nodes = $session->query($spacesStore, "PATH:\"app:company_home/cm:testing\""); $contentNode = $nodes[0]; $newSpace = $contentNode->createChild('cm_folder', 'cm_contains', 'cm_'.$dir_name);//here has to be cm_ as it is here. $newSpace->cm_name = $dir_name; $newSpace->cm_title = "This is a title"; $newSpace->cm_description = 'Description of Space'; $session->save(); unset($session); $session = $repository->createSession($ticket); $nodes = $session->query($spacesStore, "PATH:\"app:company_home/cm:testing/cm:$dir_name\""); } $guestHome = $nodes[0]; // Get the name of the new node $name = $_POST['txt_docs_title']; $contentNode = $guestHome->createChild("cm_content", "cm_contains", "cm_".$name);//!!the folder's name has to begin with 'cm_' otherwise, using web service can not find it later. $contentNode->addAspect("cm_titled"); // Set the name, title and description property values $contentNode->cm_name = $name; $contentNode->cm_title = $_POST['num_ct_ID']; $contentNode->cm_description = "testing description --program creek"; // Set the content onto the standard content property for nodes of type cm:content. // We are going to assume the mimetype and encoding for ease $contentData = $contentNode->updateContent("cm_content", $_FILES['document']['type'], "UTF-8"); // Set the content to be the content file uploaded from the client $contentData->writeContentFromFile($_FILES["document"]["tmp_name"]); // Save the new node $session->save();
Comments(0) I got this from JavaRanch, can not hesitate to put it here.
What is a Web Service?
In simple terms a Web Service is an application or business logic that is accessible using standard Internet protocols.
Can I access a web services from any application?
Yes, if your application supports XML based object request and response.
Are there any real web services available for testing?
Yes, check http://xmethods.net/
What is the best Web Service Testing tools?
I would say SoapUI, it is perfectly for installation and implementation. Now if you know some about Web Service, you can start practice with SoupUI and xmethods.net. This can help you understand Web Service.
What are the current free and commercial implementations available for Web Services?
Web Service protocols and supporting package
Can I access a web service from within a browser?
You can use the JavaScript XmlHttpRequest object (read introductions here and here). You’ll have to create and process the XML requests and responses yourself, though. This works in Internet Explorer, Safari and Mozilla-based browsers like FireFox.
What are the differences between JAX-RPC, JAX-WS, Apache Axis, SAAJ, Apache SOAP, JWSDP, Metro, Jersey and GlassFish?
Where can I find the relevant standards?
Some useful code snippets
Which other software packages help implement Java Web Services?
More articles on specific topics
Check the JavaRanch Bunkhouse Web Services And SOAP category.
The book title is linked to the publisher where sample content may reside. The ISBN links to Amazon US which tends to list reviews.
SOA Using Java™ Web Services (2007) ISBN 0130449687 Web page Bunkhouse Review
RESTful Web Services (2007) ISBN 0596529260
J2EE Web Services (2004) ISBN 0321146182 Bunkhouse Review Author’s Blog
Designing Web Services with the J2EE™ 1.4 Platform (2004) ISBN 0321205219 On-line Version PDF Version
Service-Oriented Architecture: Concepts, Technology, and Design (2005) ISBN 0131858580 Web page
Service-Oriented Architecture: A Field Guide to Integrating XML and Web Services (2004) ISBN 0131428985 Web page
SOA Principles of Service Design (2007) ISBN 0132344823 Web page
SOA in Practice: The Art of Distributed System Design (2007) ISBN 0596529554 Web page
Java Web Services in a Nutshell
Building Web Services with Java: Making Sense of XML, SOAP, WSDL, and UDDI
Developing Web Services with Apache Axis
Developing Java Web Services: Architecting and Developing Secure Web Services Using Java
Comments(3) I was trying to do a java web service project which allows users to upload files through web service. After searching for several days, I realized that, this is not a good idea. In face, web service can transfer Image from end to end, but not for large regular files, such as pdf, doc, etc. The reason is that server will read file to byte array which consumes much memory. If many users use it at the same time, this may lead to scalability issue.