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Jersey (JAX-RS) multiple files upload example

Jersey (JAX-RS) supports multiple files upload. Dynamic number of files can also be uploaded.

In this tutorial we will solve following problems:

Upload more than one files.

Upload dynamic numbers of files. Support to upload multiple files selected using input type file with multiple files selection enabled. E.g.<span></span> <input type="file" multiple />.

Download the source code or git clone it

Jersey (JAX-RS) single file upload example

Jersey provide easy mechanism to let client upload file on server. In this tutorial we will learn single file upload to Jersey (JAX-RS) endpoint.

This is a part of Jersey (JAX-RS) Restful Web Services Development Guides series. Please read Jersey + Spring Boot getting started guide.

1. Include Jersey media multipart dependency in Gradle

File: build.gradle (snippet)

.... dependencies { compile…

Jersey (JAX-RS) @FormParam HTML form data handling

There are multiple ways for consuming HTML form data (application/x-www-form-urlencoded) in Jersey. Using @FormParam annotation we can inject Form values in Resource method. We can use it just like other @*Param.

Jersey resource method need to know they have to handle HTML form data, for it we explicitly specify @Consumes("application/x-www-form-urlencoded").

There are multiple ways in which we…

Spring Boot and Jersey (JAX-RS) static files support

In Spring Boot support of Jersey provided by org.springframework.boot:spring-boot-starter-jersey Gradle dependency. When static files URL pattern matched with URLs which Jersey handles, We will need more configurations for Spring Boot to serve static resources.

Note: We are using Gradle dependency management system, configuration for Maven will be similar.

This is a part of Jersey (JAX-RS)…

Jersey (JAX-RS) @BeanParam to inject class with aggregated @*Param injections

It will reduce our code and improve readability, if we define injections of various @*Param values in a distinct class and reuse that in various resources. In Jersey (JAX-RS) we can achieve same using @BeanParam injection.

Aggregate @*Param injections in one class and use @BeanParam to inject that class in Resources.

This is a part of Jersey (JAX-RS) Restful Web Services Development Guidesseries.…

Jersey (JAX-RS) Java types to consume request parameter values guide

In Jersey (JAX-RS), to consume HTTP request parameter, cookie, header, path variable and matrix parameter string values, we have following options:

Primitive types – int, char, float, long, double, byte and others.

Types with constructor which accepts single String argument.

Types with a static method with name valueOf or fromString which accepts single String argument. For e.g.…

Jersey (JAX-RS) matrix URI parameters handling guide

URL with matrix URI looks like:

http://www.example.com/map;lat=50;long=20;scale=32000

;lat=50;long=20;scale=32000 represents matrix parameters. Please refer W3C article on it.

Using @MatrixParam annotation we can get matrix parameters value from API URI in Jersey Resources classes.

This is a part of Jersey (JAX-RS) Restful Web Services Development Guides series. Please read Jersey + Spring Boot…

Working with request cookie in Jersey (JAX-RS) guide

Usually RESTful web services will not use request cookie. There might be some cases where we need it.

We had tested or used following tools and technologies in this project:

Jersey (v 2.21)

Gradle Build System (v 2.9)

Spring Boot (v 1.3)

Java (v 1.8)

Eclipse IDE

Please read Jersey + Spring Boot getting started guide.

@CookieParam annotation for getting individual Request Cookies

We can inject…

Working with request header in Jersey (JAX-RS) example

In one previous post, we talked about, how to get parameters and their values from request query string. In this guide learn how to get request header values in Jersey (JAX-RS) based application.

We had tested or used following tools and technologies in this project:

Jersey (v 2.21)

Gradle Build System (v 2.6)

Spring Boot (v 1.3)

Java (v 1.8)

Eclipse IDE

Gradle Build File

We are using Gradle for…

Jersey (JAX-RS) extracting client HTTP request parameter from query string

In one previous post, we talked about, how to use @PathParam annotation to extract the client passed path variable from API HTTP URI, which we defined using @Path annotation. In this guide we will provide example to extract information from HTTP request parameter in all possible ways.

We had tested or used following tools and technologies in this project:

Jersey (v 2.21)

Gradle Build System (v…

Jersey (JAX-RS) HTTP methods examples on Resources and Sub Resources

In this guide we will learn about implementing HTTP methods like GET, POST, PUT and DELETE using Jersey (JAX-RS). In theory these HTTP methods used for following purposes:

GET: It represents one or a list of resources or sub resources.

POST: It creates a new resource as represented by URI from the request payload.

PUT: It change an existing resource as represented by URI from the request payload.

Introduction

Our expectation from technologies is never-ending; we keep on revolutionizing the way we do our web development and enrich user’s experiences. Browsers have come a long way and they have implemented the ever-changing standards.

In the above “web development evolution infographics”,  we can see a repeating pattern of induction of external libraries and their refinement, followed by…

Native HTML5 Component Development using Web Components & Polymer

A White Paper Native HTML5 Component Development using Web Components & Polymer

Introduction

Our expectation from technologies is never ending; we keep on revolutionizing the way we do our web development and enrich the user’s experiences. Browsers have come a long way and they have implemented the ever changing standards.

In the above “web development evolution infographics”, we can see a…

Index any XML documents using Apache Solr

Apache Solr is highly scalable search engine with lots of goodies in-built. In this guide we will learn how to get our structured data in XML can be indexed and searched effectively.

We will learn following concepts:

Starting up Apache Solr

Importing structured XML document for indexing in Apache Solr

Tools & Library used in this project:

Apache Solr 5.3.0

Java 8

Mac OSX

Downloading & Starting…

Jersey @Path request url mapping for Resources and Sub Resources

In this guide we will learn Jersey(JAX-RS) Resources and Sub Resources concepts as well as mapping of API HTTP URI using @Path annotation. Specifically we will go through following concepts and examples:

Root Resources (Resources)

Sub Resources

HTTP URL mapping to Resources and Sub Resources using @Path annotation

Deep dive @Path annotation

Understand @PathParam annotation

We had tested or used…

Jersey Restful Web Services Development Guides

Jersey is an open source production grade Java based API library to easily build Restful Web services server and client components.

It is also a reference implementation for JAX-RS (JSR 311 & JSR 339) API. Jersey is getting a lot of traction due to evolution of Restful API based product development.

Spring MVC and Apache CXF are few other products available in the Java eco system for developing…

Jersey + Spring Boot quick starter guide

In this guide we will set up a project to use Jersey API on Spring Boot based application. At the end of the guide you will know following stuffs:

Setting up Jersey project on Spring Boot using Gradle build system.

Testing a basic welcome GET API call on application.

We had tested or used following tools and technologies in this project:

Jersey (v 2.21)

Gradle Build System (v 2.6)

Spring Boot (v…