background preloader

REST with Java (JAX-RS) using Jersey

REST with Java (JAX-RS) using Jersey
Jersey contains a REST client library which can be used for testing or to build a real client in Java. The usage of this library is demonstrated in the following tutorial. Create a new Java gradle project with com.vogella.jersey.first.client as top-level package name and add following dependency to your build.gradle file to import the Jersey dependencies. Related:  REST (representational state transfer)

How to consume json parameter in java restful service Build a RESTful Web service using Jersey and Apache Tomcat RESTful Web service introduction Representational State Transfer, or REST, was introduced and defined in 2000 by the doctoral dissertation of Roy Fielding, one of the principal authors of the HTTP specification versions 1.0 and 1.1. The most important concept in REST is resources, which are identified by global IDs— typically using URIs. Client applications use HTTP methods (GET/ POST/ PUT/ DELETE) to manipulate the resource or collection of resources. A RESTful Web service is a Web service implemented using HTTP and the principles of REST. Typically, a RESTful Web service should define the following aspects: The base/root URI for the Web service such as MIME type of the response data supported, which are JSON/XML/ATOM and so on. Table 1 illustrates the resource URI and HTTP methods used in typical RESTful Web services. Table 1. Back to top JSR 311 (JAX-RS) and Jersey Build a RESTful Web service Hello World: The first Jersey Web project Listing 1. Method

REST API Tutorial Learn REST: A Tutorial: 1. What is REST? REST stands for Representational State Transfer. (It is sometimes spelled "ReST".) It relies on a stateless, client-server, cacheable communications protocol -- and in virtually all cases, the HTTP protocol is used. REST is an architecture style for designing networked applications. The idea is that, rather than using complex mechanisms such as CORBA, RPC or SOAP to connect between machines, simple HTTP is used to make calls between machines. In many ways, the World Wide Web itself, based on HTTP, can be viewed as a REST-based architecture. RESTful applications use HTTP requests to post data (create and/or update), read data (e.g., make queries), and delete data. REST is a lightweight alternative to mechanisms like RPC (Remote Procedure Calls) and Web Services (SOAP, WSDL, et al.). Despite being simple, REST is fully-featured; there's basically nothing you can do in Web Services that can't be done with a RESTful architecture. REST is not a "standard".

Producing and consuming JSON or XML in Java REST Services with Jersey and Jackson February 17, 2015 Nabi Zamani This Tutorial will explain how to produce and consume JSON or XML in Java REST Services with Jersey and Jackson. Jackson is one of the best JSON Providers/parsers I have come over the so far and it's very fast. Since Jersey 2.x MOXy is the new default JSON-Binding Provider in Jersey (and therefore also in GlassFish 4). However, I have experienced that Jackson is (slightly) faster than MOXy and it is a little easier to configure. You can compile the Maven project and run it on any Servlet Container which supports Servlet API 3.1, i.e. If you are interested in using Jersey with MOXy then check my other tutorial. Table of contents: 1. /pom.xml 2. /src/main/webapp/WEB-INF/web.xml <? 3. We will use two very simple POJOs. /src/main/java/com/nabisoft/tutorials/jerseyjackson/model/Message.java /src/main/java/com/nabisoft/tutorials/jerseyjackson/model/Person.java 4. Our two REST Services are very simple as well. 5. Now we make sure to use Jackson. 6. 7. 8.

Chapter 11. Dependencies Jersey is built, assembled and installed using Maven. Jersey is deployed to the Java.Net maven repository at the following location: . The Jersey modules can be browsed at the following location: . Jars, Jar sources, Jar JavaDoc and samples are all available on the java.net maven repository. A zip file containing all maven-based samples can be obtained here . Individual zip files for each sample may be found by browsing the samples directory. An application depending on Jersey requires that it in turn includes the set of jars that Jersey depends on. All Jersey components are built using Java SE 6 compiler. Developers using maven are likely to find it easier to include and manage dependencies of their applications than developers using ant or other build technologies. A jersey bundle jar to avoid the dependency management of multiple jersey-based jars. Core server. Core client. Container. Entity.

webservices Apache CXF: JAX-RS Restful web service using JAXB + JSON example - BenchResources.Net In the previous article, we learnt and implemented an example on how to use JAX-RS Restful web service to send & receive XML data as request/response. Here, we will re-use and modify the same example to send & receive JSON data as web service request/response JAX-RS specification supports the conversion of Java objects to JSON & vice-versa using Jackson library Still we need Java objects to send/receive data in JSON format so start designing your XML Schema Definition (XSD), as we can use JAXB Maven plugin to generate Java classes. NOTE: an extra dependency “Jackson – high performance JSON parser” has been added to pom.xml to support exchange of JSON data with JAX-RS Restful web service Annotation Used Technology Used Java 1.7Eclipse Luna IDESpring-4.0.0-RELEASEApache-CXF-3.0.0Apache Maven 3.2.1Apache Tomcat 7.0.54 Mavenize or download required jars Add Apache-CXF-3.0.0 and Spring-4.0.0-RELEASE dependencies to pom.xml JAXB – Generating java source files from XSD Configure JAXB Maven plugin 1.

Developing REST Web Services Tutorial 5.1 Deploying & Running the restdemo Project The fastest way to deploy our web service is to deploy our web project using the Run As or Debug As action of MyEclipse Server Application. We can do that by right-clicking on our project, going down to Debug As (or Run As) and selecting MyEclipse Server Application: If you have multiple server connectors configured, MyEclipse will ask you which one you want to use, for the purpose of this tutorial select MyEclipse Tomcat. If you don't have any connectors configured, MyEclipse Tomcat will be used automatically for you to deploy your project to and then run. Now MyEclipse will perform the following steps for you automatically: Package our web project, and deploy it in Exploded format to the application server Start the application server for us, loading our web project 5.2 Testing the Web Service with the REST Web Services Explorer (PRO Only) The easiest way to test our web service is to use the REST Web Services explorer.

REST Security with JWT, Spring Security and Java | Toptal Security Security is the enemy of convenience, and vice versa. This statement is true for any system, virtual or real, from the physical house entrance to web banking platforms. Engineers are constantly trying to find the right balance for the given use case, leaning to one side or the other. Usually, when a new threat appears, we move towards security and away from convenience. Security is the enemy of convenience, and vice versa. Let’s try to see where REST services currently stand regarding security and convenience. Although REST services do not have much specified, an important one is the lack of state. In trying to get rid of client sessions from the server, some other methods have been used occasionally, such as Basic or Digest HTTP authentication. Finally, some implementations used arbitrary tokens to authenticate clients. However, with such arbitrary tokens, there’s little standard involved. Here is how JWT is designed to work: Authorization: Bearer <token> Implementation Conclusion

rest - Restful way for deleting a bunch of items Delete Multiple Objects - Amazon Simple Storage Service Description The Multi-Object Delete operation enables you to delete multiple objects from a bucket using a single HTTP request. If you know the object keys that you want to delete, then this operation provides a suitable alternative to sending individual delete requests (see DELETE Object), reducing per-request overhead. The Multi-Object Delete request contains a list of up to 1000 keys that you want to delete. The Multi-Object Delete operation supports two modes for the response; verbose and quiet. When performing a Multi-Object Delete operation on an MFA Delete enabled bucket, that attempts to delete any versioned objects, you must include an MFA token. Finally, the Content-MD5 header is required for all Multi-Object Delete requests. Requests Syntax POST /? Request Parameters The Multi-Object Delete operation requires a single query string parameter called "delete" to distinguish it from other bucket POST operations. Request Elements Responses Response Elements Examples Sample Request POST /?

Related: