DZone
Thanks for visiting DZone today,
Edit Profile
  • Manage Email Subscriptions
  • How to Post to DZone
  • Article Submission Guidelines
Sign Out View Profile
  • Post an Article
  • Manage My Drafts
Over 2 million developers have joined DZone.
Log In / Join
Refcards Trend Reports
Events Video Library
Over 2 million developers have joined DZone. Join Today! Thanks for visiting DZone today,
Edit Profile Manage Email Subscriptions Moderation Admin Console How to Post to DZone Article Submission Guidelines
View Profile
Sign Out
Refcards
Trend Reports
Events
View Events Video Library
Zones
Culture and Methodologies Agile Career Development Methodologies Team Management
Data Engineering AI/ML Big Data Data Databases IoT
Software Design and Architecture Cloud Architecture Containers Integration Microservices Performance Security
Coding Frameworks Java JavaScript Languages Tools
Testing, Deployment, and Maintenance Deployment DevOps and CI/CD Maintenance Monitoring and Observability Testing, Tools, and Frameworks
Culture and Methodologies
Agile Career Development Methodologies Team Management
Data Engineering
AI/ML Big Data Data Databases IoT
Software Design and Architecture
Cloud Architecture Containers Integration Microservices Performance Security
Coding
Frameworks Java JavaScript Languages Tools
Testing, Deployment, and Maintenance
Deployment DevOps and CI/CD Maintenance Monitoring and Observability Testing, Tools, and Frameworks

Integrating PostgreSQL Databases with ANF: Join this workshop to learn how to create a PostgreSQL server using Instaclustr’s managed service

Mobile Database Essentials: Assess data needs, storage requirements, and more when leveraging databases for cloud and edge applications.

Monitoring and Observability for LLMs: Datadog and Google Cloud discuss how to achieve optimal AI model performance.

Automated Testing: The latest on architecture, TDD, and the benefits of AI and low-code tools.

Related

  • Building a REST Service That Collects HTML Form Data Using Netbeans, Jersey, Apache Tomcat, and Java
  • Spring Boot - How To Use Native SQL Queries | Restful Web Services
  • Testing REST Controller Methods With JUnit 5 [Video]
  • Update User Details in API Test Client Using REST Assured [Video]

Trending

  • What Is Kubernetes RBAC and Why Do You Need It?
  • API Design
  • Unleashing the Power of Microservices With Spring Cloud
  • Database Monitoring: Key Metrics and Considerations
  1. DZone
  2. Software Design and Architecture
  3. Integration
  4. Enabling CORS for ADF Business Component REST Services

Enabling CORS for ADF Business Component REST Services

Cross-Origin Resource Sharing can help enable REST services from being invoked by apps on other servers. Here's how to get CORS for ADF Business Components up and running.

Shay Shmeltzer user avatar by
Shay Shmeltzer
·
Nov. 25, 15 · Tutorial
Like (2)
Save
Tweet
Share
4.60K Views

Join the DZone community and get the full member experience.

Join For Free

CORS (which stands for Cross-Origin Resource Sharing) is a setting that will enable your REST services running on one server to be invoked from applications running on another server.

I first encountered this when I was trying to run an Oracle JET project in my NetBeans IDE that will access a set of REST services I exposed using Oracle ADF Business Component in my JDeveloper environment. Since NetBeans runs the HTML on a GlassFish instance, while JDeveloper ran the ADF BC layer on a WebLogic instance I got the dreaded No 'Access-Control-Allow-Origin' header is present error:

 XMLHttpRequest cannot load http://127.0.0.1:7101/Application14-RESTWebService-context-root/rest/1/dept/20. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8383' is therefore not allowed access.

There is no built-in functionality to enable CORS for ADF BC in JDeveloper, but I found it very easy to leverage the CORS Filter libraries to do this. All you need to do is add the two JAR files it provides to your project and configure the web.xml to support the filter and the specific REST operations you want to enable CORS for.

Here is a quick video showing you the complete setup (using the REST ADF BC project created here).

The web.xml addition is:

   <filter>
    <filter-name>CORS</filter-name>
    <filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
            <init-param>
                <param-name>cors.supportedMethods</param-name>
                <param-value>GET, POST, HEAD, PUT, PATCH, DELETE</param-value>
        </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CORS</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

If you follow my approach in the video and add the JARs as a new user library to JDeveloper and don't forget to check the "Deploy by Default" check box for the library.

REST Web Protocols

Published at DZone with permission of Shay Shmeltzer, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

Related

  • Building a REST Service That Collects HTML Form Data Using Netbeans, Jersey, Apache Tomcat, and Java
  • Spring Boot - How To Use Native SQL Queries | Restful Web Services
  • Testing REST Controller Methods With JUnit 5 [Video]
  • Update User Details in API Test Client Using REST Assured [Video]

Comments

Partner Resources

X

ABOUT US

  • About DZone
  • Send feedback
  • Careers
  • Sitemap

ADVERTISE

  • Advertise with DZone

CONTRIBUTE ON DZONE

  • Article Submission Guidelines
  • Become a Contributor
  • Visit the Writers' Zone

LEGAL

  • Terms of Service
  • Privacy Policy

CONTACT US

  • 3343 Perimeter Hill Drive
  • Suite 100
  • Nashville, TN 37211
  • support@dzone.com

Let's be friends: