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rest example with wildfly swarm and jersey
Raw
Dockerfile
FROM java:openjdk-8-jdk
ADD target/demo-swarm.jar /opt/demo-swarm.jar
EXPOSE 8081
ENTRYPOINT ["java", "-jar", "/opt/demo-swarm.jar"]
Raw
howto.txt
# pack and run your application
1. cd yourProjectPath
2. maven package
3. java -jar target/demo-swarm.jar
open http://localhost:8080
# the same with docker
first: execute points 1 and 2 fom above!
> docker build -t repo/image_name . # create image with dockerfile
> docker images # see now your created image
> docker run --name rest_example -it -p 8081:8080 IMAGE_ID|IMAGE_NAME /bin/bash
open http://localhost:8081
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index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script src="bower_components/jquery/dist/jquery.min.js"></script>
<style>
* {
line-height: 130%;
font-family: Arial, Verdana, sans-serif;
}
#wrapper {
width: 60%;
margin: 50px auto;
}
</style>
</head>
<body>
<div id="wrapper">
<h1>Rest service with wildfly-swarm and jersey</h1>
<p>
<button id="post1">Get Request to api/v1/service/info</button>
</p>
<p>
<button id="setAuthorizationToken">set authorization token</button>
<button id="removeAuthorizationToken" style="display: none;">remove authorization token</button>
</p>
<p>
<b>you need the autorization header befor you add a new user</b><br/>
<input type="text" placeholder="username" id="username"/>
<button id="post2">Post Request to api/v1/service/addUser</button>
</p>
</div>
<script>
(function ($) {
'use strict';
$(document).on('click', '#post1', function (e) {
$.get('api/v1/service/info', function (res) {
alert(res);
});
});
$(document).on('click', '#setAuthorizationToken', function (e) {
$.ajaxSetup({
headers: {
'Authorization': "Bearer abcdddeeefffffff-1234"
}
});
$('#removeAuthorizationToken').toggle(10);
$('#setAuthorizationToken').toggle(10);
});
$(document).on('click', '#removeAuthorizationToken', function (e) {
$.ajaxSetup({
headers: {
'Authorization': null
}
});
$('#removeAuthorizationToken').toggle(10);
$('#setAuthorizationToken').toggle(10);
});
$(document).on('click', '#post2', function (e) {
var username = $('#username').val();
if (username.trim() !== "") {
$.post('api/v1/service/addUser', {user: $('#username').val()}, function (res, status, xhr) {
// console.info("user id = " + xhr.getResponseHeader('user-id'));
console.info(xhr.getAllResponseHeaders());
$('#username').val('');
});
} else {
alert('Username?');
}
});
})(jQuery);
</script>
</body>
</html>
Raw
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>rest_example</artifactId>
<name>WildFly Swarm Rest Example</name>
<version>1.0.0</version>
<packaging>war</packaging>
<properties>
<version.wildfly.swarm>2017.7.0</version.wildfly.swarm>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<failOnMissingWebXml>false</failOnMissingWebXml>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>bom-all</artifactId>
<version>${version.wildfly.swarm}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- WildFly Swarm Fractions -->
<!-- ... -->
<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-server -->
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.jersey.contribs/jersey-multipart -->
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-multipart</artifactId>
<version>1.9</version>
</dependency>
</dependencies>
<build>
<finalName>demo</finalName>
<plugins>
<plugin>
<groupId>org.wildfly.swarm</groupId>
<artifactId>wildfly-swarm-plugin</artifactId>
<version>${version.wildfly.swarm}</version>
<!-- favor IPv4Stack as IP6 can cause trobule on some operating systems and WildFly-Swarm -->
<!--ONLY FOR DOCKER-->
<configuration>
<properties>
<java.net.preferIPv4Stack>true</java.net.preferIPv4Stack>
</properties>
</configuration>
<!--ONLY FOR DOCKER-->
<executions>
<execution>
<goals>
<goal>package</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
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RestConfig.java
package com.example.rest_example;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("/api/v1")
public class RestConfig extends Application {
}
Raw
Service.java
package com.example.rest_example;
import javax.ws.rs.*;
import javax.ws.rs.core.Response;
@Path("/service")
public class Service {
@GET
@Path("info/")
public Response getInfo() {
String output = "Service works!";
return Response.status(200).entity(output)
.header("Access-Control-Allow-Origin", "*")
.header("Access-Control-Allow-Methods", "GET")
.build();
}
@POST
@Path("addUser/")
public Response addUser(
@DefaultValue("") @FormParam("user") String username
, @DefaultValue("") @HeaderParam("Authorization") String jwtToken
) {
if (!jwtToken.equals("Bearer abcdddeeefffffff-1234") || username.trim().isEmpty()) {
return Response.status(401)
.header("Access-Control-Allow-Origin", "*")
.header("Access-Control-Allow-Methods", "POST")
.build();
}
User user = new User(username);
// persist user
return Response.status(201).entity("")
.header("user-id", user.getId())
.header("Access-Control-Allow-Origin", "*")
// 'access-control-expose-headers' allow the client to read the response-header 'user-id'
.header("Access-Control-Expose-Headers", "user-id")
.header("Access-Control-Allow-Methods", "POST")
.build();
}
@OPTIONS
@Path("addUser/")
public Response getAccountDataOptions() {
// CORS: Browser first make an options request when you set own header from client side
return Response.status(201).entity("")
.header("Access-Control-Allow-Origin", "*")
.header("Access-Control-Allow-Headers", "authorization")
.header("Access-Control-Allow-Methods", "OPTIONS")
.build();
}
}
Raw
User.java
package com.example.rest_example;
import java.util.UUID;
public class User {
private final String username;
private final String id;
public User(String username) {
this.username = username;
this.id = UUID.randomUUID().toString().replaceAll("-", "");
}
public String getUsername() {
return username;
}
public String getId() {
return id;
}
}
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