i am not able to get the value of the text entered in the textbox in jsp into my action class. below are my files. can anyone please help as this is very urgent.
my jsp is
<%# taglib uri="/struts-tags" prefix="s" %>
<html>
<body>
<s:form action="login" method="post">
<s:textfield name="userName" label="User Name" />
<s:submit type="button" id="submit" label="Submit"/>
<s:reset id="reset" label="Reset"></s:reset>
</s:form>
</body>
</html>
my action class is
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private String userName;
public String getUserName() {
return userName;
}
public void setUsername(String username) {
this.userName = username;
}
public String execute(){
System.out.println("the userName is "+this.getUserName());
return SUCCESS;
}
}
and my struts.xml is
<?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>
<include file="struts-default.xml" />
<package name="default" extends="struts-default">
<action name="login" class="core.login.LoginAction">
<result name="error">>/webpages/login/Error.jsp</result>
<result name="success">/webpages/home/Home.jsp</result>
</action>
</package>
</struts>
Case-sensitivity is important.
public void setUsername(String username) {
this.userName = username;
}
Should be:
public void setUserName(String username) {
this.userName = username;
}
In your struts.xml, you have written
class="core.login.LoginAction"
but you are not declaring any package in your Action class.
Also setter and getter method are of different names. Remember they are case-sensitive as said by Steven.
Try removing minor mistakes like an extra ">"
In your textfield add value attribute like this:
<s:textfield name="userName" label="User Name" value="${userName}" />
That directly maps it to member variable in action class.
In Eclipse,
to solve case sensitivity problem right click on code writing area and go to source -> Generate getter and setter method
It will add getter and setter method for selected member variables.
Related
I am new to struts2. What I am trying is to get data from the client and insert into the db.But while doing this setImageFile(File fie) isnt called and thus imageFile object is null. While other set methods are called and is thus respective members contains values.
action.class
import com.opensymphony.xwork2.ActionSupport;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.sql.*;
import java.util.Map;
import javax.servlet.http.Part;
import org.apache.struts2.interceptor.SessionAware;
import org.apache.struts2.dispatcher.SessionMap;
public class register extends ActionSupport implements SessionAware{
SessionMap<String, String> sessionMap;
private String name;
private String email;
private String dob;
private String address;
private File imageFile;
private String imageFileFileName;
private String imageFileContentType;
#Override
public void setSession(Map map)
{
sessionMap = (SessionMap)map;
sessionMap.put("", name);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getDob() {
return dob;
}
public void setDob(String dob) {
this.dob = dob;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public File getImageFile() {
return imageFile;
}
public void setFile(File imageFile) {
this.imageFile = imageFile;
}
public void setSessionMap(SessionMap<String, String> sessionMap) {
this.sessionMap = sessionMap;
}
public String execute()
{
try
{
Class.forName("org.postgresql.Driver");
Connection conn=DriverManager.getConnection("jdbc:postgresql://localhost:5432/DemoDB", "postgres", "postgres");
InputStream imageInputStream = new FileInputStream(imageFile);
String query = "insert into userProfile('Name','Address','email','dob','img') values(?,?,?,?,?)";
Date date = Date.valueOf(dob);
PreparedStatement preparedStatement = conn.prepareStatement(query);
preparedStatement.setString(0, name);
preparedStatement.setString(1, address);
preparedStatement.setString(2, email);
preparedStatement.setDate(3, date);
preparedStatement.setBinaryStream(4, imageInputStream, imageFile.length());
preparedStatement.execute();
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
return "success";
}
}
In the above code imageFile is null. And othe members contains value
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts
Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="register" namespace="/" extends="tiles-default">
<action name="register" class="com.passportseva.register">
<result name="success" type="tiles">login</result>
<result name="input" type="tiles">register</result>
<result name="error">layoutmanager.jsp</result>
</action>
</package>
</struts>
This is jsp where the action is called
registration.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>
<form action="register" method="POST">
<div>
<div><h1>Name</h1></div>
<input type="text" name="name" hint="name"/>
</div>
<div>
<div><h1>Email</h1>></div>
<input type="text" name="email" hint="email"/>
</div>
<div>
<div><h1>DOB</h1></div>
<input type="date" name="dob"/>
</div>
<div>
<div><h1>Address</h1></div>
<input type="area" name="address" hint="address"/>
</div>
<div>
<s:file name="imageFile" label="image"/>
</div>
<input type="submit" value="register"/>
</form>
</body>
</html>
I used tiles here
tiles.xml
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN"
"http://tiles.apache.org/dtds/tiles-config_2_0.dtd">
<tiles-definitions>
<definition name="login" template="/layoutmanager.jsp">
<put-attribute name="title" value="Login Page"/>
<put-attribute name="body" value="/login.jsp"/>
</definition>
<definition name="register" template="/layoutmanager.jsp">
<put-attribute name="title" value="Passport seva registration"/>
<put-attribute name="body" value="/registration.jsp"/>
</definition>
</tiles-definitions>
The output says that invalid field value for imageFile.
Use Struts Form tag with enctype attribute.
<s:form action="register" method="POST" enctype="multipart/form-data">
</s:form>
I am trying to get the exception via struts2 to display the global results jsp but its not working and instead I am getting a java exception show in console. Also would like to add that If i use interceptor-ref exception individually to an action its working fine but globally not working as intended.
Here is my struts.xml, just addded a simple global results and exceptions.
<?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>
<constant name="struts-devmode" value="true"></constant>
<package name="user" extends="struts-default">
<global-results>
<result name="myresult">globalresult.jsp</result>
</global-results>
<global-exception-mappings>
<exception-mapping result="myresult" exception="java.lang.Exception"></exception-mapping>
</global-exception-mappings>
<action name="UserAction" class="actionclasses.UserAction"
method="execute">
<interceptor-ref name="timer"></interceptor-ref>
<interceptor-ref name="params"></interceptor-ref>
<result name="input">index.jsp</result>
<result name="success">success.jsp</result>
</action>
<action name="LoginAction">
<result type="redirect">login.jsp</result>
</action>
</package>
</struts>
My UserAction class from where exception is raised.
package actionclasses;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport{
/**
*
*/
private static final long serialVersionUID = 1L;
String userName;
String passWord;
public String execute()
{
System.out.println(userName);
int a=10/0;
return "success";
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassWord() {
return passWord;
}
public void setPassWord(String passWord) {
this.passWord = passWord;
}
public static long getSerialversionuid() {
return serialVersionUID;
}
}
My login.jsp, my login page
<%# 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=ISO-8859-1">
<title>User Login</title>
</head>
<body>
<h1>Login to Web page</h1>
<s:form action="UserAction" method="post">
<s:textfield name="userName" label="Enter UserName" />
<s:password name="passWord" label="Enter Password" />
<s:submit value="submit" />
</s:form>
</body>
</html>
Once you specify any interceptors you must specify all interceptors.
I am using struts2 for implementing my application. In my application I have to implement two drop downs, value of the second drop down is dependent on first drop down. I got reference from an example and implemented my code accordingly, but still not getting the result. Please give your suggestion to make this code work.
SupporterAction.java
package action;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import entityBean.TicketDataBean;
import entityBean.UserBean;
import entityListener.SupporterListener;
import entityManager.Application;
#SuppressWarnings("serial")
public class SupporterAction extends ActionSupport{
private String application;
private String number;
private List<String> applicationNames;
List<String> ticketNumber;
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
public List<String> getApplicationNames() {
return applicationNames;
}
public void setApplicationNames(List<String> applicationNames) {
this.applicationNames = applicationNames;
}
public List<String> getTicketNumber() {
return ticketNumber;
}
public void setTicketNumber(List<String> ticketNumber) {
this.ticketNumber = ticketNumber;
}
public String getApplication() {
return application;
}
public void setApplication(String application) {
this.application = application;
}
public String getJSON() {
return execute();
}
#SuppressWarnings("unchecked")
public String execute()
{
#SuppressWarnings("rawtypes")
Map session = ActionContext.getContext().getSession();
System.out.println(session.get("currentSessionUser"));
applicationNames = new ArrayList<String>();
UserBean userBean = (UserBean)session.get("currentSessionUser");
List<Application> applicationObj = userBean.getApplication();
for (Application obj : applicationObj)
{
System.out.println(obj.getApplicationName());
applicationNames.add(obj.getApplicationName());
}
session.put("ApplicationNames",applicationNames);
System.out.println("Hello");
System.out.println(application);
if(application != null)
{
ticketNumber=new ArrayList<String>();
System.out.println("Hello 1");
SupporterListener sl = new SupporterListener();
List<TicketDataBean> tdbList = sl.getPendingTickets(application);
if(!tdbList.isEmpty())
{
for(TicketDataBean td : tdbList)
{
ticketNumber.add(td.getNumber());
}
session.put("logined","true");
session.put("TicketNumber",ticketNumber);
}
}
return "success";
}
}
Supporter.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib prefix="s" uri="/struts-tags" %>
<%# taglib prefix="sj" uri="/struts-jquery-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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<s:form id="formSelectReload" theme="simple" cssClass="yform" action="getApplicationList">
<fieldset>
<div class="type-text">
<label for="application">Application : </label>
<s:url var="remoteurl" action="getApplicationList" namespace="/"/>
<sj:select href="%{remoteurl}" id="application" name="application"
list="applicationNames" onChange="reloadsecondlist" emptyOption="false"
headerKey="-1" headerValue="Please Select a Application" />
</div>
<s:property value="#session.ApplicationNames"/>
<div class="type-text">
<label for="number">Ticket Number: </label>
<s:url var="remoteurl" action="getApplicationList" namespace="/"/>
<sj:select href="%{remoteurl}" id="ticketNumber" formIds="formSelectReload"
reloadTopics="reloadsecondlist" name="number"
list="ticketNumber"
emptyOption="false"
headerKey="-1" headerValue="Please Select a Ticket Number"/>
</div>
<div class="type-button">
<sj:submit
id="submitFormSelectReload"
/>
</div>
</fieldset>
</s:form>
</body>
</html>
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="false" />
<constant name="struts.custom.i18n.resources" value="ApplicationResources" />
<package name="login" extends="struts-default">
<action name="login"
class="action.LoginAction"
method="execute">
<result name="success">/Home.jsp</result>
<result name="error">/InvalidLogin.jsp</result>
<result name="INVALID SESSION">/Home.jsp</result>
</action>
<action name="logout"
class="action.LoginAction"
method="logout">
<result name="success">/Login.jsp</result>
</action>
<action name="register">
<result>/Register.jsp</result></action>
<action name="importexcel">
<result>/ImportExcel.jsp</result></action>
<action name="supporter" class="action.SupporterAction"
method="execute">
<result name="success">/Supporter.jsp</result></action>
<action name="registeruser"
class="action.RegisterAction"
method="register">
<result name="success">/UserLogged.jsp</result>
<result name="error">/InvalidLogin.jsp</result>
<result name="INVALID SESSION">/Register.jsp</result>
</action>
<action name="importExcel"
class="action.ImportExcelAction"
method="importExcel">
<result name="success">/Home.jsp</result>
<result name="error">/InvalidLogin.jsp</result>
<result name="INVALID SESSION">/Home.jsp</result>
</action>
</package>
<package name="default" extends="struts-default,json-default" namespace="/">
<action name="getApplicationList"
class="action.SupporterAction" >
<result type="json" />
</action>
</package>
</struts>
jar files
Image of jar files
Result I am getting is
Image of result
As we can see in Image of result, list is being populated but I am not able to get it in drop down. Please suggest something.
Thank you in advance for your answers.
The prepare() interceptor is your friend.
https://struts.apache.org/docs/prepare-interceptor.html
I also configured all the setting for Struts2 basic validation, but nothing is working for me.
My login.jsp file
<%#taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Login Page</title>
<s:head />
</head>
<body>
<s:actionerror/>
<s:form action="Login" method="post">
<s:textfield name="userName" label="User Name" />
<s:password name="password" label="Password" />
<s:submit value="Login" />
<s:fielderror></s:fielderror>
</s:form>
</body>
</html>
My loginAction class is,
package com.test;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private static final long serialVersionUID = 1L;
private String userName;
private String password;
public LoginAction() {
}
public String execute() {
return "SUCCESS";
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
my struts2.xml file is,
<package name="default" namespace="/" extends="struts-default">
<action name="Login" class="com.test.LoginAction" method="execute">
<result name="SUCCESS">login.jsp</result>
<result name="input">login.jsp</result>
</action>
</package>
</struts>
And I place my LoginAction-validation.xml file in the same package where the Action class is placed.
Please lookout my code and help me to resolve the validation issue.
You are returning same login.jsp page in your execute method in action class.
So this results in displaying login page with empty field every time you hit enter.
Try creating an additional jsp to which you are redirected to based on String returned from action class.
other than that i dont see any problem.
i am trying to work on a drop down list using struts2 tag. But till now i am unsuccessful: below is the .jsp page, the action class, the struts.xml file and all relevant codes. Any help will be greatly appreciated. Thank you.
Note: I am getting this error :-> tag 'select', field 'list': The requested list key 'country' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]
...........
Index.jsp :
.............
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<%#taglib uri="/struts-tags" prefix="s" %>
<h3>Struts 2: UI Tag Example - Registration Page Demo </h3><hr>
<s:form action="register">
<s:select label="Country" list="country" listKey="countryAbbr" listValue="countryName" />
<s:submit/>
</s:form>
......................
struts.xml:
......................
<package name="com.uitagdemo" extends="struts-default">
<action name="register" class="com.uitagdemo.RegisterAction" >
<result name="success">/success.jsp</result>
<result name="input">/index.jsp</result>
</action>
</package>
...........................
RegisterAction.java
...........................
public class RegisterAction extends ActionSupport {
private List<Country> country;
public String execute() {
return SUCCESS;
}
public List<Country> getCountry(){
country = new ArrayList<Country>();
country.add(new Country("IN", "INDIA"));
country.add(new Country("US", "USA"));
country.add(new Country("FR", "FRANCE"));
return country;
}
}
.......................
success.jsp
.......................
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<%#taglib uri="/struts-tags" prefix="s" %>
Struts 2: UI Tag Example
Struts 2: UI Tag Example - Registration Page Demo
Country: <s:property value="country" /><br>
</body>
......................
Country.java
......................
public class Country {
private String countryAbbr;
private String countryName;
public Country() {
}
public Country(String countryAbbr, String countryName) {
this.countryAbbr = countryAbbr;
this.countryName = countryName;
}
public String getCountryName() {
return countryName;
}
public void setCountryName(String countryName) {
this.countryName = countryName;
}
public String getCountryAbbr() {
return countryAbbr;
}
public void setCountryAbbr(String countryAbbr) {
this.countryAbbr = countryAbbr;
}
}
In this case you are using the Country class as a Map. Simplest solution would be to make a Hashmap property called country with appropriate getter/setters and populate it with what you need.
Then in your JSP you could say something like:
<s:select label="Country" list="country.keys">
or maybe you'd rather
<s:select label="Country" list="country.values">
The workflow should be reverse than above. It should be
action that fills select tag(calls getcountry) -> page with form -> action(to which form will be submitted)
but above we have
page with form -> submitted to action that fills the select, but form has already been displayed.