Struts 2 file upload : File object being null

Struts 2 file upload : File object being null - java

I am trying to use Struts 2 file upload but it seems to me that its not working. Below is my code.
UploadAction.java:
public class UploadAction extends ActionSupport{
private File file;
private String orgFileName;
private String orgContentType;
public void setUpload(File file){
this.file=file;
}
public void setUploadContentType(String contentType){
this.orgContentType=contentType;
}
public void setUploadFileName(String fileName){
this.orgFileName=fileName;
}
#Override
public String execute(){
if(file==null)
{
System.out.println("No file....");
}
System.out.println(orgContentType);
System.out.println(orgFileName);
return SUCCESS;
}
}
struts.xml:
<constant name="struts.multipart.maxSize" value="20971520" />
<constant name="struts2.multipart.saveDir" value="C:/users/sabertooth/desktop/upload" />
<include file="example.xml"/>
<!-- Configuration for the default package. -->
<package name="default" extends="struts-default">
<action name="upload" class="UploadAction">
<result name="success">/example/HelloWorld.jsp</result>
</action>
</package>
I am also trying to set struts2.multipart.saveDir property as you can see above but when I read the server logs I see this line
unable to find `struts.multipart.saveDir` defaulting to `javax.servlet.dir`
Also the file object is null as no file... gets printed out on console.
I can't figure out what is wrong here.
EDIT:
fileupload.jsp:
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<%# taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>upload file below</h1>
<s:form action="upload" method="post" enctype="multipart/form-data">
<input type="file" name="file" id="uploadfile" />
<input type="submit" id="submit" />
</s:form>
</body>
</html>

Apart from changing the saveDir (really not necessary, and dangerous), your are not following the conventions in the Action class: the name of an private variable must match the names of its Getters and Setters; and finally, in page you are mismatching the name by pointing to the private variable, not the setter. Change it to:
public class UploadAction extends ActionSupport{
private File upload;
private String uploadFileName;
private String uploadContentType;
public void setUpload(File upload){
this.upload=upload;
}
public void setUploadContentType(String uploadContentType){
this.uploadContentType=uploadContentType;
}
public void setUploadFileName(String uploadFileName){
this.uploadFileName=uploadFileName;
}
#Override
public String execute(){
if(upload==null)
{
System.out.println("No file....");
}
System.out.println(uploadContentType);
System.out.println(uploadFileName);
return SUCCESS;
}
}
JSP
<s:form action="upload" method="post" enctype="multipart/form-data">
<input type="file" name="upload" id="uploadfile" />
<input type="submit" id="submit" />
</s:form>

Change this
<input type="file" name="file" id="uploadfile" />
to
<input type="file" name="upload" id="uploadfile" />
Your setter in your action class is setUpload so it is looking for a request parameter called upload, not file. For the sake of convention you should also change
private File file;
public void setUpload(File file){
this.file=file;
}
to
private File upload;
public void setUpload(File file){
this.upload=file;
}

Related

The requested resource is not available in struts2 File upload

I am new to Struts2 and am developing a web application with file upload option. Everything has been configured but when i run the module HTTP Status 404 error: The requested resource is not available. (Link: http://localhost:8080/File_Upload/index.jsp). please find below my config,
index.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>File Upload</title>
<script type="text/javascript" src="<%=request.getContextPath()%>/js/jquery-1.11.3.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/js/ajaxfileupload.js"></script>
<script type="text/javascript">
function ajaxFileUpload()
{
$("#loading")
.ajaxStart(function(){
$(this).show();
})//
.ajaxComplete(function(){
$(this).hide();
});//
$.ajaxFileUpload
(
{
url:'fileUploadAction.action',//
secureuri:false,//false
fileElementId:'myFile',//id <input type="file" id="file" name="file" />
dataType: 'json',// json
success: function (data, status) //
{
//alert(data.message);//jsonmessage,messagestruts2
$("#file_name").attr("value",data.myFile);
$("#file_path").attr("value",data.myFileFileName);
if(typeof(data.error) != 'undefined')
{
if(data.error != '')
{
alert(data.error);
}else
{
alert(data.myFile);
}
}
},
error: function (data, status, e)//
{
alert(e);
}
}
)
return false;
}
</script>
</head>
<body>
<form action="upload" method="post" enctype="multipart/form-data">
<label for="myFile">Upload your file</label>
<input type="file" name="myFile" id="myFile"/>
<input type="button" value="" onclick="return ajaxFileUpload();">
<input type="hidden" name="file_name[]" id="file_name[]" value=""/>
<input type="hidden" name="file_path[]" id="file_path[]" value=""/>
<input type="submit"/>
</form>
<div id="loading"><span style="position: fixed;left: 50%;top: 50%; transform: translate(-50%, -50%); color:#f3cbbb ">
<img src="<%=request.getContextPath()%>/images/ajax-loader.gif" alt="loading" width="200" height="200" style="padding-left:85px">
<br /><br />
<span style=" font-weight: 700; font-size: 18px">Please wait,File is being uploaded
</span></span>
</div>
</body>
</html>
struts.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default">
<action name="fileUploadAction" class="com.tutorialspoint.struts2.MultipleFileUploadAction">
<result type="json" name="success">
<param name="contentType">text/html</param>
</result>
<result type="json" name="error">
<param name="contentType">text/html</param>
</result>
</action>
</package>
</struts>
Action.class:
package com.tutorialspoint.struts2;
import java.io.File;
import org.apache.commons.io.FileUtils;
import java.io.IOException;
import com.opensymphony.xwork2.ActionSupport;
public class MultipleFileUploadAction extends ActionSupport {
private File[] myFile;
private String[] myFileContentType;
private String[] myFileFileName;
private String destPath;
public String execute()
{
/* Copy file to a safe location */
destPath = "E:/kalidass/Upload/";
try{
for(int i=0;i<myFile.length;i++)
{
System.out.println("Src File name: " + myFile[i]);
System.out.println("Dst File name: " + myFileFileName[i]);
File destFile = new File(destPath, myFileFileName[i]);
FileUtils.copyFile(myFile[i], destFile);
}
}catch(IOException e){
e.printStackTrace();
return "error";
}
return "success";
}
public File[] getMyFile() {
return myFile;
}
public void setMyFile(File[] myFile) {
this.myFile = myFile;
}
public String[] getMyFileContentType() {
return myFileContentType;
}
public void setMyFileContentType(String[] myFileContentType) {
this.myFileContentType = myFileContentType;
}
public String[] getMyFileFileName() {
return myFileFileName;
}
public void setMyFileFileName(String[] myFileFileName) {
this.myFileFileName = myFileFileName;
}
}
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
jar files:
Jar files

You have to add in your struts.xml this action inside your default package
<action name="index">
<result>/index.jsp</result>
</action>
In this way when you'll try to open http://localhost/myapp/index it will return the index.jsp

Saving form data in the database using Struts 2

When we click the save button it must save the form data in the database but its doing nothing.
Below is the code:
BodyDaywise.jsp:
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<%# taglib uri="http://tiles.apache.org/tags-tiles" prefix="tiles" %>
<%# taglib prefix="s" uri="/struts-tags" %>
<%# taglib prefix="sx" uri="/struts-dojo-tags" %>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Day Wise</title>
</head>
<body align="center">
<h1 align="center">Day Wise Form</h1>
<html:form action="daywise" class="BodyDaywiseAction" method="POST" >
LoginDate: <input type="date" name="LoginDate" displayformat="yyyy-mm-dd" label="Login Date(yyyy-mm-dd)"/><br><br>
LoginTime:<input id="start" type="time" name="LoginTime"/><br><br>
LogoutTime:<input id="end" type="time" name="LogoutTime"/><br><br>
Task:<input type="textarea" name="Task" label="Task" cols="20" rows="5"/><br><br>
<input type="submit" value="save" name="Save" onClick=""/>
<button type="submit" value="Clear" name="clear">Clear</button>
<input type="button" value="cancel" onClick="history.back();"/>
</html:form>
</body>
</html>
Action class: BodyDaywiseAction.java:
package com.timesheet.action;
import com.opensymphony.xwork2.ActionSupport;
import com.timesheet.db.DaywiseDBO;
import java.sql.Date;
import java.sql.Time;
public class BodyDaywiseAction extends ActionSupport {
public BodyDaywiseAction()
{
}
private Date LoginDate;
private Time LoginTime;
private Time LogoutTime;
private String Task;
public Date getLoginDate() {
return LoginDate;
}
public void setLoginDate(Date LoginDate) {
this.LoginDate = LoginDate;
}
public Time getLoginTime() {
return LoginTime;
}
public void setLoginTime(Time LoginTime) {
this.LoginTime = LoginTime;
}
public Time getLogoutTime() {
return LogoutTime;
}
public void setLogoutTime(Time LogoutTime) {
this.LogoutTime = LogoutTime;
}
public String getTask() {
return Task;
}
public void setTask(String Task) {
this.Task = Task;
}
private static final long serialVersionUID = 1L;
#Override
public String execute() throws Exception {
int i=DaywiseDBO.save(this);
if(i>0){
return "success";
}
return "error";
}
#Override
public void validate() {
if("".equals(getTask())){
addFieldError("Task", "Task must be filled !");
}
}
}
DaywiseDBO.java:
package com.timesheet.db;
import com.timesheet.action.BodyDaywiseAction;
import com.timesheet.dbutil.DBUtil;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
public class DaywiseDBO {
public static int save(BodyDaywiseAction BDA) throws Exception{
int status=0;
Connection conn = null;
ResultSet rs = null;
PreparedStatement ps = null;
DBUtil util = null;
try{
util = new DBUtil();
conn = util.getConnection();
ps = conn.prepareStatement("insert into logintable values(?,?,?,?)");
ps.setDate(1,BDA.getLoginDate());
ps.setTime(2,BDA.getLoginTime());
ps.setTime(3,BDA.getLogoutTime());
ps.setString(4,BDA.getTask());
status=ps.executeUpdate();
}catch(Exception e){
e.printStackTrace();}
return status;
}
}
struts.xml:
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="default" extends="struts-default, tiles-default">
<result-types>
<result-type name="tiles"
class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
<action name="loginaction" class="com.timesheet.action.LoginAction" method="execute">
<result name="input" >/Login.jsp</result>
<result name="success" type="tiles">/bodydaywise.tiles</result>
<result name="error" type="tiles">/error.jsp</result>
</action>
<action name="daywise" class="com.timesheet.action.BodyDaywiseAction">
<result name="success" type="tiles">/bodydaywisesuccess.tiles</result>
<result name="error" type="tiles">/error.jsp</result>
</action>
</package>
</struts>
Please let me know if I'm missing something.

You are using wrong date/time type in the action class. Struts2 have not build-in converters for java.sql.* types. The date/time values should be converted to date if you use java.util.Date. objects of this type can contain both date and time values.
import java.util.Date;
import java.sql.Time;
Change the getters and setters accordingly to return the required. You can also set the date object to Calendar and do some calculations, after that you can create a Timestamp object from the calendar. For example
user.setCreateDate(new Timestamp(Calendar.getInstance().getTimeInMillis()));
sets the current date & time to the user object before the user is added to the database.
The example of using PreparedStatement: JDBC PreparedStatement example – Insert a record.
There's also an example to save only date part of the Date: Insert date value in PreparedStatement. (Don't use it, because it doesn't save a time portion of the Date).

Displaying SimpleCaptcha in Struts 2 Form

I am trying to implement SimpleCaptcha with Struts 2, so far the image is displaying. However, it is displaying at the top of the <s:form>.
register.jsp:
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%# taglib prefix="s" uri="/struts-tags"%>
<head>
...
<s:head />
</head>
<body>
<b>REGISTER</b>
<p>Please fill up the form below.</p>
<s:form action="register" method="post">
<s:textfield label="Enter username" key="userId" maxlength="25"
size="30" />
<s:textfield label="Enter email" key="userEmail1" type="email"
placeholder="someone#domain.com" size="30" />
<s:textfield label="Re-enter email" key="userEmail2" type="email"
placeholder="someone#domain.com" size="30" />
<s:password label="Enter password" key="userPassword1" size="30" />
<s:password label="Re-enter password" key="userPassword2"
size="30" />
<img src="<c:url value='simple-captcha.png' />" />
<br />
Cannot read? Refresh page for new CAPTCHA.
<s:textfield label="Enter CAPTCHA" key="captchaAnswer" size="30" />
<s:submit value="Register" />
</s:form>
</body>
How do I make the image appear above the Enter CAPTCHA textfield as specified in the code?

The image should be generated by the captcha action. Then you provide the URL to this action in <img> tag. To implement captcha in your project follow steps below
Add the jar to your web project classpath: simplecaptcha-1.2.1.jar.
Typically inside web-inf/lib folder.
Add new action class RegisterAction
Note: The following code is using convention plugin to map actions and for simplicity DMI is used to invoke some methods of the action class when form is submitted. To turn on DMI use a constant in struts.xml:
<constant name="struts.enable.DynamicMethodInvocation" value="true"/>
RegisterAction.java:
public class RegisterAction extends ActionSupport {
private String userId;
private String userEmail1;
private String userEmail2;
private String userPassword1;
private String userPassword2;
private String captchaResponse;
private InputStream inputStream;
//getters and setters
public String create() {
//RegisterAction is the form bean of the current action and captchaResponse is the field of user input
String answer = (String) ActionContext.getContext().getSession().get("CorrectAnswer");
if (answer == null || getCaptchaResponse()==null || !answer.equals(getCaptchaResponse())){
addFieldError("captchaResponse", getText("error.captcha"));
}
return SUCCESS;
}
#Action(value = "captcha", results = {#Result(type="stream", params = {"contentType", "image/jpeg"})})
public String captcha() {
try {
Captcha captcha = new Captcha.Builder(200, 50).addText(new DefaultTextProducer()).gimp(new DropShadowGimpyRenderer()).build();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
//write the image
CaptchaServletUtil.writeImage(outputStream, captcha.getImage());
//store the answer for this in session
ActionContext.getContext().getSession().put("CorrectAnswer", captcha.getAnswer());
//return image
inputStream = new ByteArrayInputStream(outputStream.toByteArray());
return SUCCESS;
} catch (Exception e) {
e.printStackTrace();
throw e;
}
}
}
RegisterAction.properties contains the following value for the error key:
RegisterAction.properties:
error.captcha=Invalid value of shown text!
so we check either pass successfully or add to errors error regarding captcha.
Add register.jsp Typically in web-inf\content
register.jsp:
<!DOCTYPE html>
<%# taglib prefix="s" uri="/struts-tags"%>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
<meta charset="UTF-8">
<title>Register</title>
</head>
<body>
<b>REGISTER</b>
<p>Please fill up the form below.</p>
<s:form action="register" method="post">
<s:textfield label="Enter username" key="userId" maxlength="25"
size="30" />
<s:textfield label="Enter email" key="userEmail1" type="email"
placeholder="someone#domain.com" size="30" />
<s:textfield label="Re-enter email" key="userEmail2" type="email"
placeholder="someone#domain.com" size="30" />
<s:password label="Enter password" key="userPassword1" size="30" />
<s:password label="Re-enter password" key="userPassword2"
size="30" />
<tr><td>
<img id="captchaImg" src="<s:url action='captcha'/>" alt="Captcha Image" height="45">
<img src="<c:url value='/images/reload.jpg' />" alt="Reload" onclick="document.forms[0].captchaImg.src='<s:url action='captcha'/>'+'?id='+Math.random();" style="cursor:pointer"/>
<s:textfield label="Enter CAPTCHA" key="captchaResponse" size="30" requiredLabel="*"/>
<tr><td>
Cannot read? Refresh page for new CAPTCHA.
</td></tr>
<s:submit method="create" value="Register" />
</s:form>
</body>
</html>
This will construct the Captcha and the text field to enter the value and Struts error message to show errors in captchaResponse field, plus the refresh icon.
NOTE: a good trick we used here is the javascript Math.random() function, this way prevent certain browsers like Firefox to cache the URL and keep posting the same Captcha image, this enforce it to get the new value without doing any more effort.
Here is how it will looks like:
For more details refer to the web site : SimpleCaptcha

This is just to show how I went about the solution. I was unaware you can put <tr><td> inside the <s:form>. Thanks to Roman C, I got the CAPTCHA image to display where I wanted it to.
register.jsp:
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%# taglib prefix="s" uri="/struts-tags"%>
<head>
...
<s:head />
</head>
<body>
<b>REGISTER</b>
<p>Please fill up the form below.</p>
<s:form action="register" method="post">
<s:textfield label="Enter username" key="userId" maxlength="25"
placeholder="someone" size="30" />
<s:textfield label="Enter email" key="userEmail1"
placeholder="someone#domain.com" size="30" />
<s:textfield label="Confirm email" key="userEmail2"
placeholder="someone#domain.com" size="30" />
<s:password label="Enter password" key="userPassword1" size="30" />
<s:password label="Confirm password" key="userPassword2"
size="30" />
<tr>
<td></td>
<td>
<img src="<c:url value='simple-captcha.png' />" />
<br />
Cannot read? Press F5 to refresh.
</td>
</tr>
<s:textfield label="Enter code" key="captchaAnswer" size="30" />
<s:submit value="Register" />
</s:form>
</body>
RegisterAction.java:
import nl.captcha.Captcha;
...
public class RegisterAction extends ActionSupport implements SessionAware, Message {
private static final long serialVersionUID = 1L;
private Map<String, Object> session;
private String userId;
private String userEmail1;
private String userEmail2;
private String userPassword1;
private String userPassword2;
private String captchaAnswer;
#Override
public String execute() throws Exception {
// business logic to insert user into database
return SUCCESS;
}
#Override
public void validate() {
Captcha captcha = (Captcha) session.get(Captcha.NAME);
if(!captcha.isCorrect(getCaptchaAnswer())) {
addFieldError("captchaAnswer", INCORRECT_CAPTCHA);
}
// other validations
}
#Override
public void setSession(Map<String, Object> session) {
this.session = session;
}
// getters and setters
}
struts.xml:
<struts>
<constant name="struts.devMode" value="true" />
<package name="default" extends="struts-default">
<action name="register" class="com.mypackage.action.RegisterAction">
<result name="success">/login.jsp</result>
<result name="input">/register.jsp</result>
</action>
<!-- other actions -->
</package>
</struts>
web.xml:
(The <init-param> is optional.)
<servlet>
<servlet-name>SimpleCaptcha</servlet-name>
<servlet-class>nl.captcha.servlet.SimpleCaptchaServlet</servlet-class>
<init-param>
<param-name>captcha-width</param-name>
<param-value>200</param-value>
</init-param>
<init-param>
<param-name>captcha-height</param-name>
<param-value>50</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>SimpleCaptcha</servlet-name>
<url-pattern>/simple-captcha.png</url-pattern>
</servlet-mapping>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
OUTPUT:

Struts 2 validation not working properly as application grows

Is there any alternative validation framework while building complex web app? Or any guide for validation. Links to example is not required as it working on simple Form but not in complex Form with multiple links.
This is my action class
package com.tpc.action;
import java.util.ArrayList;
import java.util.List;
import com.opensymphony.xwork2.ActionSupport;
import com.tpc.domain.LeadFacultyModel;
import com.tpc.service.LeadFacultyServiceInterface;
public class LeadFacultyAction extends ActionSupport {
private static final long serialVersionUID = 1L;
private LeadFacultyModel leadFacultyModel;
private String lead_faculty_formAction;
// Injecting leadFacultyServiceImpl bean
LeadFacultyServiceInterface leadFacultyServiceImpl;
//variable to store the action message to pass to other pages through get request
private String action_msg = null;
private List<LeadFacultyModel> leadFacultyModelList = new ArrayList<LeadFacultyModel>();
public String execute() throws Exception {
return SUCCESS;
}
public String formAction() throws Exception
{
if(lead_faculty_formAction.equals("Save"))
{
System.out.println("Inside Update");
return this.updateLeadFaculty();
}
else if(lead_faculty_formAction.equals("Submit"))
{
System.out.println("Inside Save");
return this.saveLeadFaculty();
}
else if(lead_faculty_formAction.equals("Delete"))
{
System.out.println("Inside Delete");
return this.deleteLeadFaculty();
}
else
{
return SUCCESS;
}
}
public String saveLeadFaculty() throws Exception {
boolean result =leadFacultyServiceImpl.createLeadFaculty(leadFacultyModel);
if(result == true)
{
addActionMessage(getText("message.save_success"));
return "SAVE_SUCCESS";
}
else {
addActionError(getText("message.save_error"));
return "SAVE_ERROR";
}
}
public String viewAllLeadFaculty(){
// TODO Auto-generated method stub
System.out.println("view all method is called");
try{
leadFacultyModelList = leadFacultyServiceImpl.getAllLeadFaculty();
System.out.println("Action page "+leadFacultyModelList.size());
return SUCCESS;
}catch(Exception ex){
ex.printStackTrace();
return ERROR;
}
}
//Section of getter/setter methods in this class
public void setLeadFacultyModel(LeadFacultyModel leadFacultyModel) {
this.leadFacultyModel = leadFacultyModel;
}
public LeadFacultyModel getLeadFacultyModel() {
return leadFacultyModel;
}
public String getLead_faculty_formAction() {
return lead_faculty_formAction;
}
public void setLead_faculty_formAction(String lead_faculty_formAction) {
this.lead_faculty_formAction = lead_faculty_formAction;
}
public void setLeadFacultyServiceImpl(
LeadFacultyServiceInterface leadFacultyServiceImpl) {
this.leadFacultyServiceImpl = leadFacultyServiceImpl;
}
public void setAction_msg(String action_msg) {
this.action_msg = action_msg;
}
public List<LeadFacultyModel> getLeadFacultyModelList() {
return leadFacultyModelList;
}
public void setLeadFacultyModelList(List<LeadFacultyModel> leadFacultyModelList) {
this.leadFacultyModelList = leadFacultyModelList;
}
public String getAction_msg() {
return action_msg;
}
}
This is LeadFacultyAction-validation.xml:
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
<validators>
<field name="leadFacultyModel.lead_string_FacultyName">
<field-validator type="requiredstring">
<message>Name is required.</message>
</field-validator>
</field>
</validators>
this is struts.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<package name="default" extends="struts-default">
<!-- /** defining result types for implementing tiles **/ -->
<result-types>
<result-type name="tiles"
class="org.apache.struts2.views.tiles.TilesResult" />
</result-types>
<global-results>
<result name="error">/404_error.jsp</result>
</global-results>
<action name="">
<result></result>
</action>
<action name="baseTemplate" >
<result type="tiles">baseTemplate</result>
</action>
<action name="setup_lead_faculty">
<result type="tiles">setup_lead_faculty</result>
</action>
<action name="setup_LeadFacultyAction" class="com.tpc.action.LeadFacultyAction" method="formAction">
<result name="SAVE_SUCCESS" type="tiles">setup_lead_faculty</result>
<result name="UPDATE_SUCCESS" type="tiles">setup_lead_faculty</result>
<result name="DELETE_SUCCESS" type="tiles">setup_lead_faculty</result>
<result name="SAVE_ERROR" type="tiles">setup_lead_faculty</result>
<result name="UPDATE_ERROR" type="tiles">setup_lead_faculty</result>
<result name="DELETE_ERROR" type="tiles">setup_lead_faculty</result>
<result name="input" type="tiles">setup_lead_faculty</result>
</action>
<action name="setup_LeadFaculty_list_view_Action" class="com.tpc.action.LeadFacultyAction" method="viewAllLeadFaculty">
<result type="tiles" name="success">setup_lead_faculty_list_view</result>
</action>
<action name="setup_LeadFacultyAction_selected_from_list" class="com.tpc.action.LeadFacultyAction" method="getByIdLeadFaculty">
<result type="tiles" name="success">setup_lead_faculty</result>
</action>
</package>
This is my JSP file:
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib prefix="s" uri="/struts-tags"%>
<c:set value="/lms/" var="baseUrl" />
<s:form method="post" action="setup_LeadFacultyAction">
<div class="buttontab">
<input type="submit" name="lead_faculty_formAction" value="Save"
class="form_button" /> <input type="submit"
name="lead_faculty_formAction" value="Submit" class="form_button" />
<input type="submit" name="lead_faculty_formAction"
value="Delete" class="form_button" /> <input
type="submit" name="lead_faculty_formAction" value="Reset" disabled="disabled"
class="form_button" /> <span class="span"
style="float: right;"> <i><a href="${baseUrl}lead/setup_LeadFaculty_list_view_Action"> <img
src="${baseUrl}icons/gridview.png" width="12px" height="12px" /></a> </i> </span>
<span class="span" style="float: right;"> <i><img
src="${baseUrl}icons/formview.png" width="12px" height="12px" /> </i> </span>
<span class="span" style="float: right;"> <i><img
src="${baseUrl}icons/tileview.png" width="12px" height="12px" /> </i> </span>
</div>
<div id="content_wrap">
<div class="unidiv1">
<s:if test="hasActionErrors()">
<div class="errors">
<s:actionerror/>
</div>
</s:if>
<s:if test="hasActionMessages()">
<div>
<p><s:actionmessage/></p>
</div>
</s:if>
<s:if test="hasFieldErrors()">
<div>
<p><s:fielderror/></p>
</div>
</s:if>
<div class="field_wrapper">
<div class="left_box">
<label>ID</label>
</div>
<div class="right_box">
<input type="text" name="leadFacultyModel.lead_string_FacultyId" value="${leadFacultyModel.lead_string_FacultyId}"
class="input_id" />
</div>
</div>
<div class="field_wrapper">
<div class="left_box">
<label>Faculy</label>
</div>
<div class="right_box">
<input type="text" name="leadFacultyModel.lead_string_FacultyName" value="${leadFacultyModel.lead_string_FacultyName }" />
</div>
</div>
<div class="field_wrapper">
<div class="left_box">
<label>Remarks</label>
</div>
<div class="right_box">
<textarea name="leadFacultyModel.lead_string_FacultyRemarks"
class="textarea_address">${leadFacultyModel.lead_string_FacultyRemarks}</textarea>
</div>
</div>
</div>
</div>

The difference is only if Struts discover validation annotations while intercepting the action it processes those annotations to perform validations by applying validation rules exposed by annotations. The same thing is when parsing -validation.xml. You can use both validation methods xml based and annotation based together, or with addition to custom validation (excluding custom validators).
For example, if I have a phone field and I want to validate it is not empty and contains a predefined format I will just put two annotations on it.
private String phone;
public String getPhone() {
return phone;
}
#RequiredStringValidator(type= ValidatorType.FIELD, message="Phone required.")
#RegexFieldValidator(type= ValidatorType.FIELD, message="Invalid Phone",
regexExpression="\\([0-9][0-9][0-9]\\)\\s[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]")
public void setPhone(String phone) {
this.phone = phone;
}
then I have an execute action I don't want to validate
#SkipValidation
public String execute() throws Exception {
then I have another action save that I want to validate questions but I don't want to validate a phone.
private String myQuestionq1;
private String myQuestionq2;
public String getMyQuestionq1() {
return myQuestionq1;
}
public void setMyQuestionq1(String myQuestionq1) {
this.myQuestionq1 = myQuestionq1;
}
public String getMyQuestionq2() {
return myQuestionq2;
}
public void setMyQuestionq2(String myQuestionq2) {
this.myQuestionq2 = myQuestionq2;
}
#Action(value="save", results = {
#Result(name="input", location = "/default.jsp"),
#Result(name="back", type="redirect", location = "/")
},interceptorRefs = #InterceptorRef(value="defaultStack", params = {"validation.validateAnnotatedMethodOnly", "true"}))
#Validations(requiredFields = {
#RequiredFieldValidator(type = ValidatorType.FIELD, fieldName = "myQuestionq1", message = "You must enter a value for field myQuestionq1."),
#RequiredFieldValidator(type = ValidatorType.FIELD, fieldName = "myQuestionq2", message = "You must enter a value for field myQuestionq2.")
})
public String save() throws SQLException {
this will execute only validators on this action.
More examples you could always find on Apache web site:
Validation using annotations examples.

Ajax with struts

I have a problem using ajax with struts
I want to load dependent dropdown list using ajax. I am using struts2.
Below is the code for the jsp.
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%# taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Enter Product</title>
<script type="text/javascript">
var request;
function findindex1()
{
var temp=document.getElementById("country").value;
if(window.ActiveXObject){ request = new ActiveXObject("Microsoft.XMLHTTP"); }
else if(window.XMLHttpRequest){ request = new XMLHttpRequest(); } request.onreadystatechange = showResult;
request.open("POST",'temp.action?index='+temp,true);
request.send(null);
}
function showResult(){
if(request.readyState == 4){
alert(request.responseText+"1");
document.getElementById("text").innerHTML=request.responseText; //Just to test
var val=<%=request.getParameter("index") %> -
/* document.getElementById("city").flush(); */
}
alert(request.responseText+"1");
}
function change(){
var temp=document.getElementById("country").value;
location.href='loadProduct.action';
}
</script>
</head>
<body onload="fill()">
<s:form method="post" action="product.action" name="product" theme="simple">
<table id="table">
<tr><td>Country</td><td><s:select id="country" name="country.countryId" list="countryList" listKey="countryId"
listValue="name" onchange="findindex1()" ></s:select></td></tr>
<tr>
<td>City</td>
<td><s:select id="city" name="city.id" list="cities" listKey="id"
listValue="name" headerKey="city.id" ></s:select></td>
</tr>
<tr>
<td>Product Desc</td>
<td><s:textfield name="product.description"></s:textfield></td>
</tr>
<tr>
<td>Product Name</td>
<td><s:textfield name="product.name"></s:textfield></td>
</tr>
<tr>
<td><s:submit id="search" name="submit" value="Search"></s:submit></td>
<td><s:submit name="submit" value="Create"></s:submit>
</td>
</tr>
<tr>
<td></td>
<td><s:label id="text" name="text">Text to change</s:label>
</td>
</tr>
</table>
</s:form>
</body>
</html>
I have checked the code and it sets the value of the List cities in the action class on changing the value of the country dropdown in the jsp. But i am unable to reflect the changes in the jsp .
The action class function is :
public String temp()
{
String[] id=(String[])getParameters().get("index");
index=Integer.parseInt(id[0]);
cities=(ArrayList<City>)productCreateService.selectCities(Integer.parseInt(id[0]));
for(Iterator<Country> i=countryList.iterator();i.hasNext();)
{
Country c = i.next();
if(c.getCountryId()==Integer.parseInt(id[0]))
{
Country c1= countryList.get(0);
country=c;
break;
}
}
String out="";
for(Iterator<City> i=cities.iterator();i.hasNext();)
{
}
inputStream = new StringBufferInputStream("Hello World! This is a text string response from a Struts 2 Action.");
return SUCCESS;
}
All the varibles have getter setters . I know the code is messed up . Initially i testes it for cities tag. When that didnt work i tried testing on a simple tag (here id="text") . But even that didnt work .
The model, Services and DAO(though not here) are all correct.
The struts.xml file is as follows .
<!-- Some or all of these can be flipped to true for debugging -->
<constant name="struts.i18n.reload" value="true" />
<constant name="struts.devMode" value="true" />
<constant name="struts.configuration.xml.reload" value="false" />
<constant name="struts.custom.i18n.resources" value="global" />
<constant name="struts.action.extension" value="action" />
<constant name="struts.serve.static" value="true" />
<constant name="struts.serve.static.browserCache" value="false" />
<constant name="actionPackages" value="com.oxxo.pilot.web.action" />
<package name="default" extends="struts-default" namespace = "/">
<global-results>
<result name="custom_error">/jsp/exception.jsp</result>
<result name="input">/jsp/fail.jsp</result>
</global-results>
<global-exception-mappings>
<exception-mapping exception="java.lang.Exception"
result="custom_error" />
<action name="temp" class="ProductAction" method="temp">
<result type="stream">
<param name="contentType">text/html</param>
<param name="inputName">inputStream</param>
</result>
</action>
</package>
Could somebody please tell me what am i doing wrong. If you need any part of the code please let me know . Thanks .

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