Spring Data MongoDB – Auto Sequence ID example
In this tutorial, we will show you how to generate an auto-incrementing sequence id in MongoDB + Spring Data environment. Tools used in this project : Spring Data MongoDB 1.2.1.RELEASE MongoDB 2.4.5 Eclipse 4.2 Maven 3 At the end of this tutorial, if the collection name “hosting” is saved, a… Continue Reading
sequence id spring-data
JSP – jsessionid appear in CSS and JS link
In Spring MVC + JSP view page environment. index.jsp <html> <head> <title>Welcome!</title> <c:url var="assets" value="/resources/abc" /> <link href="${assets}/css/style.min.css" rel="stylesheet"> <script src="<c:url value="/resources/js/jquery.1.10.2.min.js" />"> </script> </head> … </html> In the Spring config file, mapped a resource path, mvc-dispatcher-servlet.xml <beans … <context:component-scan base-package="com.mkyong.test" /> <mvc:resources mapping="/resources/**" location="/resources/" />… Continue Reading
jsessionid
Java – Append values into an Object[] array
In this example, we will show you how to append values in Object[] and int[] array. Object[] obj = new Object[] { "a", "b", "c" }; ArrayList<Object> newObj = new ArrayList<Object>(Arrays.asList(obj)); newObj.add("new value"); newObj.add("new value 2"); 1. Object[] Array Example Example to append values with ArrayList : TestApp.java package com.mkyong.test;… Continue Reading
Java – Convert int[] to Integer[] example
Examples show you how to convert between int[] and its’ wrapper class Integer[]. 1. Convert int[] to Integer[] public static Integer[] toObject(int[] intArray) { Integer[] result = new Integer[intArray.length]; for (int i = 0; i < intArray.length; i++) { result[i] = Integer.valueOf(intArray[i]); } return result; } 2. Convert Integer[]… Continue Reading
convert
CloudFlare + WordPress admin, Cache issue
Below is my website environment : WordPress 3.8.1 CloudFlare Pro Plan 1. Problem I’m unable to login WordPress after changing my custom DNS to CloudFlare, below is the error message : ERROR: Cookies are blocked or not supported by your browser. You must enable cookies to use WordPress P.S The… Continue Reading
cloudflare TestNG + Spring Integration Example
In this tutorial, we will show you how to test Spring’s components with TestNG. Tools used : TestNG 6.8.7 Spring 3.2.2.RELEASE Maven 3 Eclipse IDE 1. Project Dependencies To integrate Spring with TestNG, you need spring-test.jar, add the following : pom.xml <properties> <spring.version>3.2.2.RELEASE</spring.version> <testng.version>6.8.7</testng.version> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId>… Continue Reading
spring testng
TestNG – Groups Test
In this tutorial, we will show you how to do the group testing in TestNG. 1. Groups on Methods Review a test group example. runSelenium() and runSelenium1() are belong to group selenium-test. testConnectOracle() and testConnectMsSQL() are belong to group database. runFinal() will be executed if groups selenium-test and database are… Continue Reading
group test testng
Maven + Cobertura code coverage example
Cobertura is a free Java code coverage tool – calculates the percentage of code accessed by unit tests. In this tutorial, we will show you how to use Maven to generate the Cobertura code coverage report for your project. 1. Cobertura Code Coverage Report Do nothing, just type the following… Continue Reading
cobertura code coverage maven site MongoDB – Aggregate and Group example
In this tutorial, we will show you how to use MongoDB aggregate function to group documents (data). 1. Test Data Data in JSON format, shows the hosting provider for website. website.json { "_id" : 1, "domainName" : "test1.com", "hosting" : "hostgator.com" } { "_id" : 2, "domainName" : "test2.com", "hosting"… Continue Reading
group mongodb sort
Maven + Emma code coverage example
Emma is a free Java code coverage tool. In this tutorial, we will show you how to use Maven to generate the Emma code coverage report for your project, and also how to integrate the Emma report into the Maven project site. 1. Generate Emma Code Coverage Report Do nothing,… Continue Reading
code coverage emma maven site
Maven site build is very slow – dependency report
Creating a Maven site, but the build is very slow to generate the dependency report. C:\mkyong_projects\>mvn site [INFO] Scanning for projects… [INFO] [INFO] ————————————– [INFO] Building Maven Webapp 1.0-SNAPSHOT [INFO] ————————————– [INFO] //… [INFO] Generating "Project License" report [INFO] Generating "Project Team" report [INFO] Generating "Project Summary" report [INFO] Generating… Continue Reading
maven maven site Emma – Class x appears to be instrumented already
Review the “maven-emma-plugin” in pom.xml : pom.xml <project> //… <build> <plugins> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>emma-maven-plugin</artifactId> <version>1.0-alpha-3</version> <inherited>true</inherited> <executions> <execution> <phase>process-classes</phase> <goals> <goal>instrument</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <inherited>true</inherited> <configuration> <forkMode>once</forkMode> <reportFormat>xml</reportFormat> <classesDirectory> ${project.build.directory}/generated-classes/emma/classes </classesDirectory> </configuration> </plugin> </plugins> </build> </project> 1. Problem When I run the command mvn… Continue Reading
code coverage emma maven
The type DefaultHttpClient is deprecated
Eclipse IDE prompts warning on new DefaultHttpClient, mark this class as deprecated. package com.mkyong.web.controller; import org.apache.http.Header; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; public class WebCrawler { public static void main(String[] args) throws Exception { HttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet("http://mkyong.com");… Continue Reading
http request httpclient
Java – Check if web request is from Google crawler
If a web request is coming from Google crawler or Google bot, the requested “user agent” should look similar like this : Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html) or (rarely used): Googlebot/2.1 (+http://www.google.com/bot.html) Source : Google crawlers 1. Java Example In Java, you can get the “user agent” from HttpServletRequest. Example :… Continue Reading
googlebot user agent How To Get HTTP Request Header In Java
This example shows you how to get the HTTP request headers in Java. To get the HTTP request headers, you need this class HttpServletRequest : 1. HttpServletRequest Examples Example 1.1 – Loop over the request header’s name and print out its value. import javax.servlet.http.HttpServletRequest; //… private HttpServletRequest request; … Continue Reading
headers request headers spring mvc
