IT Knowledge Sharing | Interview questions

Set Context path in Tomcat 7 or more using catalina.properties file, Step 1) Add following lines to catalina.properties file under <tomcat-install dir>/conf directory, #myApp war file version myApp .war=myAppLive -1.0.0.1.war myApp .path=/myAppLive #application deployment location appBase=webapps Step 2) Now update context path in <Host> node in server.xml file in same location, <Host name="localhost"  appBase="webapps"             unpackWARs="true" autoDeploy="false"> ... ....     <Context path="${myApp .path}" docBase="${catalina.base}/${appBase}/${myApp .war}"/> ... .... </Host>

Custom directive with dynamic attribute using angular JS Javascript: var myApp=angular.module('myApp', []); myApp.controller('myCtrl', ['$scope', function($scope) {    $scope.data= [                { name: 'A', size: '12' },                { name: 'C', size: '11' },                { name: 'B', size: '10' }               ]; }]) .directive('myOrderList', function(){   function link(scope, element, attrs) {        var myData=scope.data;            console.log(attrs);            var ulElem=element.html('<ol>');        for(var i=0;i<scope.data.length;i++){                         ulElem.append('<li>'+scope.data[i][attrs.valu...

  Maven build is failing to include struts-config.xml or web.xml file to target../../WEB-INF directory due to ‘WebContent ‘ as maven needs ‘ webapps ‘ Add this plugin to pom.xml < plugin > < groupId > org.apache.maven.plugins </ groupId > < artifactId > maven -war- plugin </ artifactId > < version > 2.2 </ version > < configuration > < webResources > < resource > < directory > ${ basedir }/WebContent </ directory > </ resource > </ webResources > < warSourceDirectory > WebContent </ warSourceDirectory > < warSourceExcludes > WebContent/WEB-INF/ lib /*.jar </ warSourceExcludes > < archiveClasses > false </ archiveClasses > </ configuration > </ plugin >

Dynamic response by java and handle using ajax jquery for all content types Jquery ajax call              var url= "trackDynamicResponse.do" ;               $.ajax({                                                   url: url,                        type: 'GET' ,                        data :{                    ...

 Open popup window with post request data using javascript:                                  function openWindowWithPostRequest() {            var winName='MyWindow';            var winURL='search.action';            var windowoption='resizable=yes,height=600,width=800,location=0,menubar=0,scrollbars=1';            var params = { 'param1' : '1','param2' :'2'};                       var form = document.createElement("form");            form.setAttribute("method", "post");            form.setAttribute("action", winURL);   ...

You can create a random string for a file name using following code snippet. public static String getRandomString(String fileName) { char fileNameArray[] = fileName.toCharArray(); int fileNameLen = fileNameArray.length; int c = 'A'; int r1 = 0, z=0; StringBuilder pw = new StringBuilder(""); for (int j = 0; j < 25; j++) { r1 = (int) (Math.random() * 4); switch (r1) { case 0: c = '0' + (int) (Math.random() * 9); if (c>'9'){ z = reset(z,fileNameLen); c = fileNameArray[z]; } break; case 1: c = 'a' + (int) (Math.random() * 25); if (c<'a' && c>'z'){ z = reset(z,fileNameLen); c = fileNameArray[z]; } break; case 2: c = 'A' + (int) (Math.random() * 25); if (c<'A' && c>'Z'){ z = reset(z,fileNameLen); c = fileNameArray[z]; } break; } pw.ap...

Set context path for your application in tomcat 7 If you want to change context path for your application, you can do by changing {catalina_base}/conf/server.xml file. Suppose, you have deployed your application in tomcat 7,               http://localhost:8080/MyApp You want to set context path to newMyApp, Modify, host element in server.xml under tomcat/conf <Host name="localhost"  appBase="webapps" unpackWARs="true" autoDeploy="false"> .... ... . <Context path="/ newMyApp "  docBase="/ MyApp " reloadable="true">  </Context> …  </Host> For detailed information, visit  http://tomcat.apache.org/tomcat-7.0-doc/deployer-howto.html#A_word_on_Contexts