Vi Mani

Hi,

I am planning to take up SCBCD .I have passed SCJP 1.4.Is this valid?
Can I take the SCBCD now ?


Thanks,
Vmani

I opened the jar the class file is there.I used 3.0 and again tried with 3.2.1.The server is tomcat.In the local the application runs fine but in test i get this exception and the data is not getting populated.

Hi,

I am using net.sf.json.JSONObject in action class .I am getting the following exception.I have the common-collections.jar in my buildpath.Inspite of tjat i am getting this exception.
Please help.


java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ListOrderedMap
at net.sf.json.JSONObject.<init>(JSONObject.java:1603)
at com.hillphoenix.quoting.epr.EditGridAction.execute(Unknown Source)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
at java.lang.Thread.run(Unknown Source)

Hi,

I am trying to use struts <html:select/> tag.I am getting the bellow mentioned error.No getter method available for property epr for bean under name org.apache.struts.taglib.html.BEAN.

Code snippet:

form:
private String epr="";
public String getEpr() {
return epr;
}

public void setEpr(String epr) {
this.epr = epr;
}

Action:

Collection<HtmlSelectOption> eprList = new ArrayList<HtmlSelectOption>();
eprList.add(options);
eprList.add(options1);
currentForm.setEprList(eprList);

currentForm.setEprList(eprList);
session.setAttribute("epr", currentForm.getEpr());
session.setAttribute("quoteHubForm", currentForm);

jsp:

<html:select property="epr" >
<html:option value="0">Select EPR</html:option>
<html:optionsCollection name="quoteHubForm" property="eprList" label="displayName" value="id" />
</html:select>

Please help

Hi

I am using drag and drop in my project.Whenever I drag an item from left grid to the right .The left grid is getting refreshed .So the data i moved from left to right is not getting removed from left.Please help in fixing this issue.I am using servlets to populate the data.

Thanks,
Vmani

thanks for your help.I have posted this in that community .

Hi,

I am getting loadException.What could be cause of this exception?Please help...

Thanks in advance
Vmani

Hi,


This is the response.

{"total":"20","data":[{"id":"1","email":"email","first":"first","last":"last"},{"id":"2","email":"[email protected]","first":"god","last":"god"},{"id":"3","email":"[email protected]","first":"god1","last":"god1"}]}


Thanks In Advance,
Vmani

Hi,
I am new to EXT js .In my project i need to add a grid which pulls data from the database.I have done a grid and created Json data but the json data is not getting displayed.Pasted the code for refrence.Please help.

TreeServlet
This creates the json data for the grid.
import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONArray; import net.sf.json.JSONException; import net.sf.json.JSONObject; /** * Servlet implementation class TreeServlet */ public class TreeServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public TreeServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub System.out.println("God"); request.getRequestDispatcher("/treegridExt.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //int node = Integer.parseInt(request.getParameter("node")); //System.out.println("node: " + node); // just for debug purposes try { //String jsonResult = createTree(node).toString(); String jsonResultForGrid=createTreeForGrid().toString(); //System.out.println("result: " + jsonResult); // just for debug purposes System.out.println("result: " + jsonResultForGrid); //response.getOutputStream().write(jsonResultForGrid.getBytes()); response.getOutputStream().write(jsonResultForGrid.getBytes()); } catch (JSONException e) { throw new ServletException(e); } } private Object createTreeForGrid() { JSONArray jarr = new JSONArray(); JSONObject jobj = new JSONObject(); jobj.accumulate("id", "1"); jobj.accumulate("email", "email"); jobj.accumulate("first","first"); jobj.accumulate("last", "last"); jarr.add(jobj); JSONObject obj = new JSONObject(); obj.accumulate("id", "2"); obj.accumulate("email", "god@ymail.com"); obj.accumulate("first","god"); obj.accumulate("last", "god"); jarr.add(obj); JSONObject obj1 = new JSONObject(); obj1.accumulate("id", "3"); obj1.accumulate("email", "god@gmail.com"); obj1.accumulate("first","god1"); obj1.accumulate("last", "god1"); jarr.add(obj1); return jarr; } private JSONArray createTree(int node) throws JSONException { if (node == 0) { JSONArray array = new JSONArray(); Node guitars = new Node(1, "Guitars"); guitars.setLeaf(false); array.add(guitars.toJson()); Node violins = new Node(2, "Violins"); array.add(violins.toJson()); Node veenas = new Node(3, "Veena"); veenas.setLeaf(false); array.add(veenas.toJson()); return array; } if (node == 1) { JSONArray array = new JSONArray(); Node acoustic = new Node(11, "Acoustic"); acoustic.setLeaf(false); array.add(acoustic.toJson()); Node electric = new Node(12, "Electric"); electric.setLeaf(false); array.add(electric.toJson()); Node semihollow = new Node(13, "Semihollow"); array.add(semihollow.toJson()); return array; } if(node==3){ JSONArray array = new JSONArray(); Node paint = new Node(14,"Canvas"); paint.setLeaf(false); array.add(paint.toJson()); return array; } if (node == 11) { JSONArray array = new JSONArray(); Node taylor = new Node(110, "Taylor"); array.add(taylor.toJson()); Node martin = new Node(111, "Martin"); array.add(martin.toJson()); Node alvarez = new Node(112, "Alvarez Yairi"); array.add(alvarez.toJson()); return array; } if (node == 12) { JSONArray array = new JSONArray(); Node fender = new Node(120, "Fender"); array.add(fender.toJson()); Node gibson = new Node(121, "Gibson"); array.add(gibson.toJson()); return array; } return null; } } Index.jspThis renders the grid, <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title id='title'>HTML Page setup Tutorial</title> <link rel="stylesheet" type="text/css" href="resources/css/ext-all.css" /> <script type="text/javascript" src="resources/js/ext-3.2.1/adapter/ext/ext-base.js"></script> <!-- ExtJS library: all widgets --> <script type="text/javascript" src="resources/js/ext-3.2.1/ext-all-debug.js"></script> <script type="text/javascript" src="resources/js/ext-3.2.1/ext-all.js"></script> <!-- Include here your extended classes if you have some. --> <!-- Include here you application javascript file if you have it. --> <!-- overrides to library --> <!-- extensions --> <!-- page specific --> <div id="user-grid"> </div> <script type="text/javascript"> // Path to the blank image should point to a valid location on your server Ext.BLANK_IMAGE_URL = '/resources/images/default/s.gif'; //var App = new Ext.App({}); // Create a standard HttpProxy instance. var proxy = new Ext.data.HttpProxy({ url: '/TreeGridUsingEXT/TreeServlet.do', method:'POST' }); // Typical JsonReader. Notice additional meta-data params for defining the core attributes of your json-response var reader = new Ext.data.JsonReader({ totalProperty: 'total', successProperty: 'success', idProperty: 'id', root: 'data', messageProperty: 'message' // <-- New "messageProperty" meta-data }, [ {name: 'id'}, {name: 'email', allowBlank: false}, {name: 'first', allowBlank: false}, {name: 'last', allowBlank: false} ]); // The new DataWriter component. var writer = new Ext.data.JsonWriter({ encode: true // <-- don't return encoded JSON -- causes Ext.Ajax#request to send data using jsonData config rather than HTTP params }); // Typical Store collecting the Proxy, Reader and Writer together. var store = new Ext.data.JsonStore({ id: 'id', // <-- This Store is RESTful proxy: proxy, reader: reader, root: 'data', writer: writer }); // load the store immeditately store.load(); //// // ***New*** centralized listening of DataProxy events "beforewrite", "write" and "writeexception" // upon Ext.data.DataProxy class. This is handy for centralizing user-feedback messaging into one place rather than // attaching listenrs to EACH Store. // // Listen to all DataProxy beforewrite events // Ext.data.DataProxy.addListener('beforewrite', function(proxy, action) { //App.setAlert(App.STATUS_NOTICE, "Before " + action); }); //// // all write events // Ext.data.DataProxy.addListener('write', function(proxy, action, result, res, rs) { //App.setAlert(true, action + ':' + res.message); }); //// // all exception events // Ext.data.DataProxy.addListener('exception', function(proxy, type, action, options, res) { // App.setAlert(false, "Something bad happend while executing " + action); }); // Let's pretend we rendered our grid-columns with meta-data from our ORM framework. var userColumns = [ {header: "ID", width: 40, sortable: true, dataIndex: 'id'}, {header: "Email", width: 100, sortable: true, dataIndex: 'email'}, //editor: new Ext.form.TextField({})}, {header: "First", width: 50, sortable: true, dataIndex: 'first'}, //editor: new Ext.form.TextField({})}, {header: "Last", width: 50, sortable: true, dataIndex: 'last'} //editor: new Ext.form.TextField({})} ]; Ext.onReady(function() { Ext.QuickTips.init(); // use RowEditor for editing // var editor = new Ext.ux.grid.RowEditor({ // saveText: 'Update' // }); // Create a typical GridPanel with RowEditor plugin var userGrid = new Ext.grid.GridPanel({ renderTo: 'user-grid', iconCls: 'icon-grid', frame: true, title: 'Users', height: 300, store: store, // plugins: [editor], columns : userColumns, tbar: [{ text: 'Add', iconCls: 'silk-add', handler: onAdd }, '-', { text: 'Delete', iconCls: 'silk-delete', handler: onDelete }, '-'], viewConfig: { forceFit: true } }); /** * onAdd */ function onAdd(btn, ev) { var u = new userGrid.store.recordType({ first : '', last: '', email : '' }); // editor.stopEditing(); userGrid.store.insert(0, u); // editor.startEditing(0); } /** * onDelete */ function onDelete() { var rec = userGrid.getSelectionModel().getSelected(); if (!rec) { return false; } userGrid.store.remove(rec); } }); </script> </head> <body> </body> </html> </code>

Hi ,

I am trying to set up connection pooling to my project.I am stuck with the below mentioned exception .I have put the required entries in server.xml and web.xml and the mysql driver jar and commons-collections-3.2.jar are placed in tomcat lib.Is there any other jar i need to put in the lib and classpath?
Please help.




org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null'
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at com.learn.jqg.JqController.doPost(JqController.java:54)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(Unknown Source)
at java.sql.DriverManager.getDriver(Unknown Source)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143)
... 16 more

Hi ,

I am very new to javascript (jqgrid).I have started looking into tree grid.How to get these values" $n_lft = (integer)$_REQUEST["n_left"]; $n_rgt = (integer)$_REQUEST["n_right"]; $n_lvl = (integer)$_REQUEST["n_level"];".
I am just trying out the sample tree grid in Jqgrid Demo.I am not seeing any of the above listed parameter in the postdata of my servlet.Can somebody explain me how this treegrid works?

Thanks in advance,
Vmani

its not data store.Its the Db temp table.Will that be possible??

Hi

In my code a procedure creates a temp table to populate the data in an EXTJs grid .This grid is a drag drop grid.So i can drag and drop rows from right to left ,when i click save i need to save this changes.Is it possible to update the same temp table which i used to populate data?

Thanks,
Vmani