I am making an AJAX call to a Jersey resource through JavaScript where class is mapped to /books and a GET method to /allBooks. This is the code for AJAX call:
function libBooks(){
alert("Inside js");
//The above alert is displayed
var requestData = {
"dataType": "application/json",
"type": "GET",
"url": "http://localhost:8080/library/rest/books/allBooks/"
};
var request = $.ajax(requestData);
alert("Ajax call made");
//The above alert is displayed
request.success(function(data) {
alert("Inside done function");
//The above alert is not displayed
var dataReceived =data.listOfBooks;
var numOfItems = dataReceived.length;
alert(numOfItems);
});
request.fail(function(jqXHR, status, errorMessage) {
if((errorMessage = $.trim(errorMessage)) === "") {
alert("An unspecified error occurred. Check the server error log for details.");
}
else {
alert("An error occurred: " + errorMessage);
}
});
}
In JSP I have a link like this:
<p>List of books in library Click Here</p>
And here is my BookResource:
#Path("/books")
public class BookResource {
#GET
#Path("/allBooks")
#Produces(MediaType.APPLICATION_JSON)
public Response getAllBooks() {
BooksHelper bookHelper = new BooksHelper();
ArrayList<Book> listOfBooks = bookHelper.getListOfBooks();
ResponseBuilder responseBuilder = Response.status(Status.OK);
responseBuilder.entity(listOfBooks);
Response response = responseBuilder.build();
return response;
}
}
Here is my pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.sudhanshu</groupId>
<artifactId>library</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>library</name>
<build>
<finalName>library</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<!-- uncomment this to get JSON support
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
</dependency>
-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
</dependency>
</dependencies>
<properties>
<jersey.version>2.16</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
I am not sure how mapping in pom.xml works as I am using Maven for the first time. Here is my web.xml:
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<servlet>
<servlet-name>Jersey Web Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>org.sudhanshu.library</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey Web Application</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
When I get to the URL: http://localhost:8080/library/rest/books/allBooks , it says resource not found 404. I think the problem might be in web.xml REST request entry point and my mapping in Resource. Also, please suggest if URL in my ajax request is correct or not. I have tried various things but none of them are working. For now I just want an alert that shows that ajax call was successful.Here is my directory structure: Any help will be appreciated. Thank You.
Look at here
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>org.sudhanshu.library</param-value>
</init-param>
You're specifying the package(s) to scan is org.sudhanshu.library. Looking at the image of your project structure, that package is empty. The package you should be scanning is com.resources
Second thing (unrelated to the 404, but will be the next problem) is you need a JSON provider. You can see in the generated pom.xml file they give you a hint
<!-- uncomment this to get JSON support
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
</dependency>
-->
You need to un-comment that dependency. Also I would change the dependency from jersey-media-moxy to jersey-media-json-jackson. IMO Jackson works a lot better than MOXy in many aspects.
This helped me find out what was my problem: I was having the same issue (resource not found) and I tried to establish my <param-value> tag with only the name of the package where my resource is (not nameOfMyApp.myResource).
I think it could be helpful to know it as few colleagues where having also the same mistake as I was.
Related
I go over the internet to figure it out why I receive 404 I tried almost all solutions and didn't help. I have:
Eclipse Photom
Tomcat 9
Java version 1.8
Maven project using Jersey 2.27
When I hit http://localhost:8080/Test/rest/testservice I got 404 "Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists."
POM.XML
<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>Test</groupId>
<artifactId>com.test</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>com.test Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.27</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.27</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
<version>2.27</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.6</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
<finalName>com.test</finalName>
</build>
</project>
WEB.XML
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>Test Jersey Service</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.test</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Test Jersey Service </servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
PROJECT STRUCTURE AND JAVA CLASS
I Have added in Deployment Assembly -> Maven Dependencies also
I solved it. So if anyone experience problems with 404 even the fact that you did everything right then double check these steps:
Always save (CTR + S) pom.xml and web.xml when you make any kind of
modifications
Replace index.jsp with index.html
Right click the project go to Maven -> Update Project
Right click the project go to Run as -> Run on Server (if I run it
manually it doesn't work, but when I go from run as it is working
correctly)
I have created a tutorial with step by step. If anyone wanted please contact me.
I am currently learning REST and I'm facing an error while calling a method. I am sure that it must be a simple configuration setting, but since I am absolutely new to learning REST, not able to figure it out.
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Jersey Web Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>org.mishra.dev.rahul.messenger</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey Web Application</servlet-name>
<url-pattern>/webapi/*</url-pattern>
</servlet-mapping>
</web-app>
pom.xml
<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>org.mishra.dev.rahul</groupId>
<artifactId>messenger</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>messenger</name>
<build>
<finalName>messenger</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<!-- uncomment this to get JSON support -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.media/jersey-media-json-jackson -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
</dependency>
</dependencies>
<properties>
<jersey.version>2.26-b03</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
resource class:
package org.mishra.dev.rahul.messenger.resources;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
#Path("messages")
public class MessageResource {
#GET
#Produces(MediaType.TEXT_PLAIN)
public Person getMessages() {
return new Person("Rahul", 31);
}
}
class Person {
private String name;
private int age;
public Person(String name, int age) {
this.name = name;
this.age = age;
}
#Override
public String toString() {
return "Name: " + name + ", Age: " + age;
}
}
Facing an error while calling: http://localhost:8080/messenger/webapi/messages
Error:
Jun 09, 2017 7:19:01 PM org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor aroundWriteTo
SEVERE: MessageBodyWriter not found for media type=text/plain, type=class org.mishra.dev.rahul.messenger.resources.Person, genericType=class org.mishra.dev.rahul.messenger.resources.Person.
Now, if instead of returning Person object, if I return a plain string like "Hello World", I do not face any issues.
EDIT:
**Solution:**I was missing the default constructor in the Person class. After adding the default constructor, I can now return the string format of the Person object.
However having said that, if I change #Produces(MediaType.APPLICATION_JSON) and return return new Person("Rahul", 31), I just see an empty JSON. I am not sure why dont I see the Person object in JSON format.
Well, I was also facing the same issue and the thing that worked for me, in this case, was that I annotated the API returning the response with this
#Produces(MediaType.APPLICATION_JSON)
There is no need for you to define the setter unnecessarily as it breaks the mutability of the object.
I read the documentation of Jersey and I found out that I need to make two changes in my resource class:
Declare the default constructor
Define getters and setters for the instance variables.
Add the following dependency in pom.xml
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
</dependency>
Now after making these changes I am able to view the string and JSON format of the Person object.
I am trying to send a json Post using Jersey-client in java but it is not working.
Code which is not working
Client client = ClientBuilder.newClient();
JSONObject jsonObject = new JSONObject();
jsonObject.put("userName", "euler");
jsonObject.put("password", "password");
Response response = client.target("http://localhost:8080/ldap/webapi/Auth").request(MediaType.APPLICATION_JSON).post(Entity.json(jsonObject));
String result = response.readEntity(String.class);
For the above code i am getting the result string as (false)
Now i created a model POJO class user.java with userName and password as variables and sent user object as json and it started working.
Code which is working
Client client = ClientBuilder.newClient();
User user = new User();
user.setUserName("euler");
user.setPassword("password");
Response response = client.target("http://localhost:8181/ldapAuth/webapi/Auth").request(MediaType.APPLICATION_JSON).post(Entity.json(user));
String result = response.readEntity(String.class);
For the above code i am getting the result string as (true).
I need to send the POST as json object and not a model class which is converted into JSON.
REST API:
#POST
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
public Status Login(User user){
AuthManager manager = new AuthManager();
return manager.Authenticate(user);
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Jersey Web Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>org.wooqer.com.ldapAuth</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey Web Application</servlet-name>
<url-pattern>/webapi/*</url-pattern>
</servlet-mapping>
</web-app>
Pom.xml
<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>org.wooqer.com</groupId>
<artifactId>ldapAuth</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>ldapAuth</name>
<build>
<finalName>ldapAuth</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.ldap</groupId>
<artifactId>spring-ldap-core</artifactId>
<version>2.1.0.RELEASE</version>
</dependency>
</dependencies>
<properties>
<jersey.version>2.6</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
I'm trying to make a restful service with jersey, for that I'm using the jersey example for a maven project. So this is what I got:
my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>simple-service-webapp</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>simple-service-webapp</name>
<build>
<finalName>simple-service-webapp</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<!-- uncomment this to get JSON support <dependency> <groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId> </dependency> -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.6.0</version>
</dependency>
</dependencies>
<properties>
<jersey.version>2.19</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
my web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>Jersey Web Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.example</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey Web Application</servlet-name>
<url-pattern>/webapi/*</url-pattern>
</servlet-mapping>
</web-app>
the resource
package com.example;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
/**
* Root resource (exposed at "myresource" path)
*/
#Path("/myresource")
public class MyResource {
/**
* Method handling HTTP GET requests. The returned object will be sent
* to the client as "text/plain" media type.
*
* #return String that will be returned as a text/plain response.
*/
#GET
#Produces(MediaType.TEXT_PLAIN)
public String getIt() {
return "Got it!";
}
#Path( "complexObject/{name}" )
#GET
#Produces( { MediaType.APPLICATION_JSON } )
public ComplexObject complexObject( #PathParam( "name" ) String name ) {
return new ComplexObject(name);
}
}
The ComplexObject class is just a class with a string.
when I hit the url: http://localhost:8080/simple-service-webapp/webapi/myresource/
This work, I get "Got it!"
but when I hit on: http://localhost:8080/simple-service-webapp/webapi/myresource/complexObject/capo
I get this error on the console:
SEVERE: MessageBodyWriter not found for media type=application/json,
type=class com.example.ComplexObject, genericType=class
com.example.ComplexObject.
How can I fix this?
With this dependency
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.6.0</version>
</dependency>
You will still need to register the provider. You could register it individually
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>
com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider
</param-value>
</init-param>
Or since the dependency also comes with Jackson ExceptionMappers, you might want to just have the whole package scanned (just add it to the list of packages)
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>
com.example,
com.fasterxml.jackson.jaxrs.json
</param-value>
</init-param>
Another option, besides using the above dependency, is to use Jersey's "wrapper" dependency (which handle the registration of the of the providers, among a couple other things such as Jackson Entity Filtering. Just used
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
</dependency>
With this dependency, do registration is required. It is automatically registered through Jersey's auto-discoverable feature
I started create a new java web application scalable, but is not working, since i got error
"503 Service Unavailable No server is available to handle this request".
Im using RESTful service
My code is:
TestClass
#Path("/test")
public class TestClass {
#GET
public String getName() {
return "John";
}
}
web.xml
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
metadata-complete="false">
<!-- Auto scan REST service -->
<context-param>
<param-name>resteasy.scan</param-name>
<param-value>true</param-value>
</context-param>
<listener>
<listener-class>
org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap
</listener-class>
</listener>
<servlet>
<servlet-name>resteasy-servlet</servlet-name>
<servlet-class>
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>resteasy-servlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
pom
<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>myApp</groupId>
<artifactId>myApp</artifactId>
<packaging>war</packaging>
<version>1.0</version>
<name>myApp</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.6</maven.compiler.source>
<maven.compiler.target>1.6</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.jboss.spec</groupId>
<artifactId>jboss-javaee-6.0</artifactId>
<version>1.0.0.Final</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>2.3.1.GA</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jackson-provider</artifactId>
<version>2.3.1.GA</version>
<scope>provided</scope>
</dependency>
</dependencies>
<profiles>
<profile>
<!-- When built in OpenShift the 'openshift' profile will be used when
invoking mvn. -->
<!-- Use this profile for any OpenShift specific customization your app
will need. -->
<!-- By default that is to put the resulting archive into the 'deployments'
folder. -->
<!-- http://maven.apache.org/guides/mini/guide-building-for-different-environments.html -->
<id>openshift</id>
<build>
<finalName>myApp</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<outputDirectory>deployments</outputDirectory>
<warName>myApp</warName>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
In my Haproxy.cfg, i have this line option httpchk GET /myApp
Anyone can help?
If you do not have something in your application listening on the root context (/) then the haproxy will see your application as being down. You either need to have something listen on the root context, or change the monitoring option to point to a url that is returning a 200 (success) when it is polled.
Did you change the httpchk GET / to the httpchk GET /myApp?
Even if you change your application to be deployed at /myApp, you still need something that gives a 200 success on that url.