In Java, you can use InetAddress.getLocalHost() to get the Ip Address of the current Server running the Java app. package com.mkyong; import java.net.InetAddress; import java.net.UnknownHostException; public class Test { public static void main(String[] args) { InetAddress ip; try { ip = InetAddress.getLocalHost(); System.out.println("Current IP address : " + ip.getHostAddress()); } catch (UnknownHostException e) { e.e.printStackTrace(); […]
To convert negative number to positive number (this is called absolute value), uses Math.abs(). This Math.abs() method is work like this “number = (number < 0 ? -number : number);". See a complete example : package com.mkyong; public class app{ public static void main(String[] args) { int total = 1 + 1 + 1 + […]
In this article, we show you how to implement container authentication with JAX-WS, under Tomcat 6.0. In this way, the authentication is declarative rather than programmatic like this – application authentication in JAX-WS. And Tomcat implement the container authentication via security realm. At the end of this article, the deployed web service will authenticate user […]
One of the common way to handle authentication in JAX-WS is client provides “username” and “password”, attached it in SOAP request header and send to server, server parse the SOAP document and retrieve the provided “username” and “password” from request header and do validation from database, or whatever method prefer. In this article, we show […]
In this article, we show you how to deploy a JAX-WS web service on Tomcat with TLS / SSL or https secure connection enabled. Actually, the answer is quite simple, just deploys it as a normal web service and configured SSL connection on your Tomcat server properly 🙂 Note This article is just a combination […]
In Java web service development environment, developer are always generate a test certificate using keytool. While doing client testing, often times, the web service test client will hits following error messages : java.security.cert.CertificateException: No name matching localhost found SunCertPathBuilderException: unable to find valid certification path to requested target Here’s a source code, that i copied […]
1. Problem Set up a localhost Tomcat to support SSL and deployed this web service for testing. While connecting to the deployed web service over SSL connection via this URL : https://localhost:8443/HelloWorld/hello?wsdl, it hits Terminal javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Caused by: sun.security.validator.ValidatorException: PKIX […]
Problem Configured Tomcat to support SSL and deployed this simple hello world web service. And use following client connect to the deployed web service over SSL connection : package com.mkyong.client; import java.net.URL; import javax.xml.namespace.QName; import javax.xml.ws.Service; import com.mkyong.ws.HelloWorld; public class HelloWorldClient{ public static void main(String[] args) throws Exception { URL url = new URL("https://localhost:8443/HelloWorld/hello?wsdl"); QName […]
Problem Configured Tomcat’s SSL, while starting Tomcat server, it hits following exception : 14 Disember 2010 4:18:31 PM org.apache.tomcat.util.net.jsse.JSSESocketFactory getStore SEVERE: Failed to load keystore type JKS with path c:\keystore due to Keystore was tampered with, or password was incorrect java.io.IOException: Keystore was tampered with, or password was incorrect at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:771) at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:38) at java.security.KeyStore.load(KeyStore.java:1185) […]
A guide to show you how to configure Tomcat 6.0 to support SSL or https connection. 1. Generate Keystore First, uses “keytool” command to create a self-signed certificate. During the keystore creation process, you need to assign a password and fill in the certificate’s detail. $Tomcat\bin>keytool -genkey -alias mkyong -keyalg RSA -keystore c:\mkyongkeystore Enter keystore […]
JSF 2.0 tutorial with full example, including JSF’s navigation, form tags, facelets tags, composite components, converter, validator, integrate with other frameworks like Spring, Hibernate and etc
Here’s a long article to show you how to integrate JSF 2.0, Spring and Hibernate together. At the end of the article, you will create a page which display a list of the existing customer from database and a “add customer” function to allow user to add a new customer into database. P.S In this […]
Here’s a guide to show you how to integrate JSF 2.0 with database via JDBC. In this example, we are using MySQL database and Tomcat web container. Directory structure of this example 1. Table Structure Create a “customer” table and insert five dummy records. Later, display it via JSF h:dataTable. SQL commands DROP TABLE IF […]
Problem JSF 2.0 web application, a managed bean uses @Resource to inject the “jdbc/mkyongdb” datasource into a ds property. @ManagedBean(name="customer") @SessionScoped public class CustomerBean implements Serializable{ //resource injection @Resource(name="jdbc/mkyongdb") private DataSource ds; When deployed to Tomcat 6, it hits following error messages for the MySQL datasource configuration. com.sun.faces.mgbean.ManagedBeanCreationException: An error occurred performing resource injection on […]
Here’s a guide to show you how to configure MySQL datasource in Tomcat 6. 1. Get MySQL JDBC Driver Get JDBC driver here – http://www.mysql.com/products/connector/ , for example, mysql-connector-java-5.1.9.jar, and copy it to $TOMCAT\lib folder. 2. Create META-INF/context.xml Add a file META-INF/context.xml into the root of your web application folder, which defines database connection detail […]
In this tutorial, we will show you how to integrate JSF 2.0 with Spring 3 using : JSF XML faces-config.xml Spring annotations JSR-330 standard injection Tools and technologies used : JSF 2.1.13 Spring 3.1.2.RELEASE Maven 3 Eclipse 4.2 Tomcat 6 or 7 1. Directory Structure A standard Maven project for demonstration. 2. Project Dependencies Declares […]
Here’s a simple Java HTTPS client to demonstrate the use of HttpsURLConnection class to send a HTTP GET request yo get the https URL content and certificate detail. P.S You may interest at this example – automate login a website with HttpsURLConnection. HttpsClient.java package com.mkyong.client; import java.net.MalformedURLException; import java.net.URL; import java.security.cert.Certificate; import java.io.*; import javax.net.ssl.HttpsURLConnection; […]
Here’s a Apache Ant template file , best use to start a project from scratch. File : build.xml <project name="ProjectName" default="dist" basedir="."> <description> Project Description </description> <!– set global properties for this build –> <property name="projectName" value="ProjectName"/> <property name="src" location="src"/> <property name="build" location="build"/> <property name="dist" location="dist"/> <property name="webcontent" location="WebContent"/> <target name="init"> <!– Create the time […]
Here’s a guide to show you how to deploy JAX-WS web services on Tomcat servlet container. See following summary steps of a web service deployment. Create a web service (of course). Create a sun-jaxws.xml, defines web service implementation class. Create a standard web.xml, defines WSServletContextListener, WSServlet and structure of a web project. Build tool to […]
A complete JAX-WS SOAP-based example to show how to use Message Transmission Optimization Mechanism (MTOM) and XML-Binary Optimized Packaging (XOP) technique to send a binary attachment (image) from server to client and vice verse. Note There are ton of articles about what’s MTOM and the benefits of using it (see reference sites below), but it’s […]
In this tutorial, we show you how to use JAX-WS to create a SOAP-based web service (document style) endpoint. Compare with RPC style, it need some extra efforts to get it works. Directory structure of this example JAX-WS Web Service End Point Here are the steps to create a document style web service in JAX-WS. […]
Problem In JAX-WS development, when following service endpoint is deploying, File : HelloWorld.java package com.mkyong.ws; //Service Endpoint Interface @WebService public interface HelloWorld{ @WebMethod String getHelloWorldAsString(); } File : HelloWorldImpl.java //Service Implementation package com.mkyong.ws; @WebService(endpointInterface = "com.mkyong.ws.HelloWorld") public class HelloWorldImpl implements HelloWorld{ @Override public String getHelloWorldAsString() { //… } } It hits following error message immediately? […]
In SOAP web service, each HTTP request or response encapsulates a SOAP envelope, these messages are easy to trace by using Eclipse IDE, build-in “TCP/IP monitor” tool. The idea is host another server in between the client and server to perform port forward function to intercept the HTTP traffic. 1. Normal SOAP envelope flows In […]
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: org.glassfish.external.amx.AMXGlassfish Solution The JAX-WS dependency library “management-api.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “management-api.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: org.glassfish.gmbal.ManagedObjectManager Solution The JAX-WS dependency library “gmbal-api-only.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “gmbal-api-only.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: org.jvnet.staxex.XMLStreamReaderEx Solution The JAX-WS dependency library “stax-ex.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “stax-ex.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: javax.xml.ws.soap.AddressingFeature$Responses Solution The JAX-WS dependency library “jaxws-api.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “jaxws-api.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: com/sun/xml/ws/policy/PolicyException Solution The JAX-WS dependency library “policy.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “policy.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: com/sun/xml/bind/v2/model/annotation/AnnotationReader Solution The JAX-WS dependency library “jaxb-impl.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “jaxb-impl.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: com.sun.xml.ws.transport.http.servlet.WSServletContextListener Solution The JAX-WS dependency library “jaxws-rt.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “jaxws-rt.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat. Reference WSServletContextListener JavaDoc
Developing a Java web service development with JAX-WS, and publish an end point… public static void main(String[] args) { Endpoint.publish("http://localhost:8080/ws/hello", new WallStreetImpl()); } 1. Problem It hits the following error message. Exception in thread "main" com.sun.xml.internal.ws.server.ServerRtException: Server Runtime Error: java.net.BindException: Address already in use: bind … Caused by: java.net.BindException: Address already in use: bind at […]
Since JSF 2.0, it’s very easy to create a reusable component, known as composite components. In this tutorial, we show you how to create a simple composite components (stored as “register.xhtml“), which is an user registration form, includes name and email text fields (h:inputText) and a submit button (h:commandButton). In addition, we also show you […]
Problem Deploying a JAX-WS web service on Tomcat, hits following error message : java.lang.ClassNotFoundException: com/sun/xml/stream/buffer/XMLStreamBuffer Solution The JAX-WS dependency library “streambuffer.jar” is missing. Go here http://jax-ws.java.net/. Download JAX-WS RI distribution. Unzip it and copy “streambuffer.jar” to Tomcat library folder “{$TOMCAT}/lib“. Restart Tomcat.
JAX-WS is bundled with JDK 1.6, which makes Java web service development easier to develop. This tutorial shows you how to do the following tasks: Create a SOAP-based RPC style web service endpoint by using JAX-WS. Create a Java web service client manually. Create a Java web service client via wsimport tool. Create a Ruby […]
In JSF, there is no official way to validate multiple components or fields. To solve it, you need to create a custom validator. In this tutorial, we will show you two unofficial ways to create a validator to validate multiple components – password and confirm password. Two ways : 1. Register PostValidateEvent, puts validation inside. […]
In JSF 2.0, you can attach a javax.faces.event.PreRenderViewEvent system event to perform custom task before a view root (JSF page) is display. Let see a complete PreRenderViewEvent example below : 1. Managed Bean Create a normal bean, contains a method signature “public void method-name(ComponentSystemEvent event)“, later you will ask listener to call this method. In […]
Since JSF 2.0, you can register javax.faces.event.PostConstructApplicationEvent and javax.faces.event.PreDestroyApplicationEvent system event to manipulate the JSF application life cycle. 1. PostConstructApplicationEvent – Perform a custom post-configuration after application has started. 2. PreDestroyApplicationEvent – Perform a custom cleanup task before application is about to be shut down. Note In JSF, you can’t depends on the standard ServletContextListeners […]
As i know,there are 4 ways to pass a parameter value from JSF page to backing bean : Method expression (JSF 2.0) f:param f:attribute f:setPropertyActionListener Let see example one by one : 1. Method expression Since JSF 2.0, you are allow to pass parameter value in the method expression like this #{bean.method(param)}. JSF page… <h:commandButton […]
In JSF, “f:setPropertyActionListener” tag is allow you to set a value directly into the property of your backing bean. For example, <h:commandButton action="#{user.outcome}" value="Submit"> <f:setPropertyActionListener target="#{user.username}" value="mkyong" /> </h:commandButton> In above JSF code snippets, if the button is clicked, it will set the “mkyong” value to the “username” property via setUsername() method. @ManagedBean(name="user") @SessionScoped public […]
In JSF, “f:attribute” tag allow you to pass a attribute value to a component, or a parameter to a component via action listener. For example, 1. Assign a attribute value to a component. <h:commandButton"> <f:attribute name="value" value="Click Me" /> </h:commandButton> //is equal to <h:commandButton value="Click Me" /> 2. Assign parameter to a component and get […]
