result display error

I am trying to display list of data from database in struts2, I have defined the success result but when try to call the action it throw error

I don't have requirement for input result. Any one have faced this kind of problem then please help me out. Why is it so?
Below is the action mapping in struts.xml file

Please be sure to ask Struts questions in the Struts forum. I have moved this post there for you.

Its hard to guess what the problem is without some more code. Does your action returns "input" result in any way or is there any validation error when you reach this action??

Ankit Garg wrote:Its hard to guess what the problem is without some more code. Does your action returns "input" result in any way or is there any validation error when you reach this action??

All files are given below:
struts.xml

<!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="hibernate-default, json-default">
		<result-types>
			<result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" />
		</result-types>
			
		<action name="*Link" method="{1}" class="com.vaannila.action.LinkAction">
			<result name="welcome" type="tiles">welcome</result>
		</action>
		
		<action name="register" class="admin.web.UserAction" method="check">
			<result name="input">/pages/Login.jsp</result>
	        <result name="success" type="tiles">welcome</result>
	        <result name="ERROR" type="redirect">/pages/Login.jsp</result>
		</action>
		
		<action name="admissionForm">
			<result name="success" type="tiles">admissionTiles</result>
		</action>
		
		<action name="admissionAction" class="admin.web.StudentAction" method="add">
			<result name="success" type="tiles">welcome</result>
			<result name="input" type="tiles">admissionTiles</result>
		</action>
		
		<action name="listStudent" class="admin.web.StudentAction" method="list">
			<result name="successEmployer" type="tiles">studentListTiles</result>
		</action>
		
		<action name="editStudent" class="admin.web.StudentAction" method="edit">
			<result name="success">/pages/editStudent.jsp</result>
			<result name="input">/pages/editStudent.jsp</result>
		</action>
		
		<action name="attendance" class="admin.web.StudentAction" method="list">
			<result name="success">/pages/attendenceSheet.jsp</result>
			<result name="input">/pages/attendenceSheet.jsp</result>
		</action>
		
		<action name="attendancee" class="admin.web.StudentAction" method="list">
			<result name="success">/pages/attendenceSheet.jsp</result>
		</action>
		
		<action name="attendanceForm" class="admin.web.StudentAttendance">
			<result name="input">/pages/attendenceSheet.jsp</result>
			<result name="success" type="redirect">/pages/xml.jsp</result>
		</action>
		
		<action name="attendanceAction" class="admin.web.StudentAttendance" method="attend">
			<result name="success" type="tiles">attendanceListTiles</result>
			
		</action>
		
		<action name="addUser" method="add" class="comm.com.vaannila.web.UserAction">
			<result name="input">/register.jsp</result>
			<result name="success" type="redirect">listUser</result>
		</action>
		<action name="listUser" method="list" class="comm.com.vaannila.web.UserAction">
				<result name="success">/register.jsp</result>
		</action>
		
		<action name="testAction" class="admin.web.check">
			<result name="input">/pages/admissionForm.jsp</result>
			<result name="success">/pages/result.jsp</result>
		</action>
		
	</package>
</struts>

viewStudent.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 uri="/struts-tags" prefix="s"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Registration Page</title>
<s:head />
<style type="text/css">
@import url(../style.css);
</style>
</head>
<body>
<s:if test="studentList.size() > 0"> 
	<div class="content">
	<table class="userTable" cellpadding="5px">
		<tr class="even">
			<th>Name</th>
			<th>Date_Of_Birth</th>
			<th>Address</th>
			<th>Contact Number</th>	
			<th>Language Known</th>
			<th>Edit</th>
			<th>Delete</th>
		</tr>
		<s:iterator value="studentList" status="userStatus">
			<tr
				class="<s:if test="#userStatus.odd == true ">odd</s:if><s:else>even</s:else>">
				<td><s:property value="firstname" /><s:property value="middletname" /><s:property value="lastname" /></td>
				<s:hidden value="id" />
				<td><s:property value="dateOfBirth"/></td>
				<td><s:property value="address"/></td>
				<td><s:property value="mobileNumber"/></td>
				<td><s:property value="languageSpeak"/></td>
				<s:property value="id" />
				<s:push value="id">
				<td><s:url id="editURL" action="editStudent">
					<s:param name="id" value="%{id}"></s:param>
				</s:url> <s:a href="%{editURL}">Edit</s:a></td>
				<td><s:url id="deleteURL" action="deleteUser">
					<s:param name="id" value="%{id}"></s:param>
				</s:url> <s:a href="%{deleteURL}">Delete</s:a></td>
				</s:push>
			</tr>
		</s:iterator>
	</table>
	</div>
</s:if>
</body>
</html>

StudentAction.java

package admin.web;

import java.util.List;
import java.util.ArrayList;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.vaannila.domain.LoginUser;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import org.hibernate.validator.Valid;

import admin.model.Student;
import admin.dao.StudentDAOImpl;
import admin.dao.StudentDAO;

public class StudentAction extends ActionSupport implements ModelDriven<Student>{
	
	
	private Student students;// = new Student();
	private StudentDAOImpl studentDAO = new StudentDAOImpl();
	private List<Student> studentList = new ArrayList<Student>();
	
	public Student getModel(){
		return students;
	}
	
	
	public String list(){
		studentList = studentDAO.listStudent();
		System.out.println("Number of student"+studentList.size());
		return "successEmployer";
	}
	
	public String edit(){
		HttpServletRequest request = (HttpServletRequest) ActionContext.getContext().get(ServletActionContext.HTTP_REQUEST);
		students = studentDAO.listStudentById(Long.parseLong(request.getParameter("id")));
		return SUCCESS;
	}
	
	public String add(){
		
		studentDAO.saveStudent(students);
		return SUCCESS;
	}
	
	public String execute()
	{
		return SUCCESS;
	}
	public Student getStudents(){
		return students;
	}
	
	public void setStudents(Student students){
		this.students = students;
	}
	
	public List<Student> getStudentList(){
		return studentList;
	}
	
	public void setStudentList(List<Student> studentList){
		this.studentList = studentList;
	}
}

StudentAction-validation.xml

Student.java

package admin.model;

import java.io.Serializable;
import admin.model.Course;
import admin.model.Qualification;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.SequenceGenerator;
import javax.persistence.*;
import com.opensymphony.xwork2.validator.annotations.*;
import org.hibernate.validator.Length;
import org.hibernate.validator.Size;
import org.hibernate.validator.NotNull;	
import org.hibernate.validator.NotEmpty;

@Entity
@Table(name="Student")
@SecondaryTable(name= "student_course", pkJoinColumns = { @PrimaryKeyJoinColumn(name="STUDENT_ID", referencedColumnName="STUDENT_ID")})
public class Student implements Serializable{
	private static final long serialVersionUID = 6295524232169619097L;
	@Column(table="student_course") 
	private String courseName;
	private Long id;
	private Long studentCode;
	private String firstname;
	private String middlename;
	private String lastname;
	private String motherName;
	private String fatherName;
	private Date dateOfBirth;
	private int rollNumber;
	private Date year;
	private int mobileNumber;
	private String contactNumber;
	private String address;
	private String address1;
	private String bloodGroup;
	private String modeOfTranspotation;
	private Integer regNumber;
	private String section;
	private String standard;
	private String languageSpeak;
	private String languageRead;
	private String languageWrite;
	private String activity;
	private String Hobby;
	private String email1;
	private String email2;
	private String courseCode;
	private Set<Course> courses = new HashSet<Course>();
	private Qualification studentQualification;
	
		
	@Id
	@GeneratedValue
	@Column(name="STUDENT_ID")
	public Long getId() {
	
		return id;
	
	}

public void setId(Long id) {
	
		this.id = id;
	
	}
		 
	@Column(name="STUDENT_CODE")
	public Long getStudentCode() {
		return studentCode;
	}
	
	public void setStudentCode(Long studentCode) {
		this.studentCode = studentCode;
	}
	
	
	@Column(name="FIRST_NAME")
	public String getFirstname() {
	
		return firstname;
	}
	
	public void setFirstname(String firstname) {
		this.firstname = firstname;
	}
	
	@Column(name="MIDDLE_NAME")
	public String getMiddlename() {
		return middlename;
	}
	
	public void setMiddlename(String middlename) {
		this.middlename = middlename;
	}
	
	@Column(name="LAST_NAME")
	public String getLastname() {
		return lastname;
	}
	
	public void setLastname(String lastname) {
		this.lastname = lastname;
	}
	
	@Column(name="MOTHER_NAME")
	public String getMotherName() {
		return motherName;
	}
	
	public void setMotherName(String motherName) {
		this.motherName = motherName;
	}
	
	@Column(name="FATHER_NAME")
	public String getFatherName() {
		return fatherName;
	}
	public void setFatherName(String fatherName) {
		this.fatherName = fatherName;
	}
	/*
	public String getGuardianName() {
		return guardianName;
	}
	
	public void setGuardianName(String guardianName ){
		this.guardianName = guardianName;
	}*/
	
	@Column(name="DATE_OF_BIRTH")
	public Date getDateOfBirth(){
		 return dateOfBirth;
	}
	
	public void setDateOfBirth(Date dateOfBirth) {
		this.dateOfBirth = dateOfBirth;
	}
	
	@Column(name="ROLLNUMBER")
	public int getRollNumber() {
		return rollNumber;
	}
	
	public void setRollNumber(int rollNumber) {
		this.rollNumber = rollNumber;
	}
	
	@Column(name="YEAR")
	public Date getYear() {
		return year;
	}
	
	public void setYear(Date year) {
		this.year = year;
	}
	
	@Column(name="MOBILE_NUMBER")
	public int getMobileNumber() {
		return mobileNumber;
	}
	
	public void setMobileNumber(int mobileNumber) {
		this.mobileNumber = mobileNumber;
	}
	
	
	@Column(name="CONTACT_NUMBER")
	 public String getContactNumber() {
		 return contactNumber;
	 }
	 
	 public void setContactNumber(String contactNumber) {
		 this.contactNumber = contactNumber;
	 }
	 
	 @Column(name="P_ADDRESS")
	 public String getAddress() {
		 return address;
	 }
	 
	 public void setAddress(String address) {
		 this.address = address;
	 }
	 
	 @Column(name="C_ADDRESS")
	 public void setAddress1(String address1) {
		 this.address1 = address1;
	 }
	 
	 public String getAddress1() {
		 return address1;
	 }
	 
	 @Column(name="Email_1")
	 public String getEmail1(){
		 return email1;
	 }
	 
	 public void setEmail1(String email1){
		 this.email1 = email1;
	 }
	 
	 @Column(name="Email_2")
	 public String getEmail2(){
		 return email2;
	 }
	 
	 public void setEmail2(String email2){
		 this.email2 = email2;
	 }
	 
	/*
	 @Column(name="BLOOD_GROUP")
	  public String getBloodGroup() {
		 return bloodGroup;
	 }
	 
	 public void setBloodGroup(String bloodGroup) {
		 this.bloodGroup = bloodGroup;
	 }
	 
	 @Column(name="MODE_TRANSPORTATION")
	 public String getModeOfTranspotation(){
		 return modeOfTranspotation;
	 }
	 
	 public void setModeOfTranspotation(String modeOfTranspotation){
		 this.modeOfTranspotation = modeOfTranspotation;
	 }
	
	 @Column(name="REG_NUMBER")
	 public Integer getRegNumber(){
		 return regNumber;
	 }
	 
	 public void setRegNumber(Integer regNumber){
		 this.regNumber = regNumber;
	 }
	 
	 @Column(name="SECTION")
	 public void setSection(String section){
		 this.section = section;
	 }
	 
	 public String getSection(){
		 return section;
	 }
		
	 @Column(name="STANDARD")
	 public String getStandard(){
		 return standard;
	 }
	 
	 public void setStandard(String standard){
		 this.standard = standard;
	 }
	 
	 
	*/	
	 
	 @Column(name="ACTIVITY")
		public String getActivity(){
			 return activity;
		 }
		 
		 public void setActivity(String activity){
			 this.activity = activity;
		 }
		 
		 @Column(name="HOBBY")
		 public String getHobby(){
			 return Hobby;
		 }
		 
		 public void setHobby(String Hobby){
			 this.Hobby = Hobby;
		 }
		 
		 @Column(name="LANGUAGE_SPEAK")
		 public String getLanguageSpeak(){
			 return languageSpeak;
		 }
		 
		 public void setLanguageSpeak(String languageSpeak){
			 this.languageSpeak = languageSpeak;
		 }
		 
		 @Column(name="LANGUAGE_READ")
		 public String getLanguagRead(){
			 return languageRead;
		 }
		 
		 public void setLanguagRead(String languageRead){
			 this.languageRead = languageRead;
		 }
		 
		 @Column(name="LANGUAGE_WRITE")
		 public String getLanguageWrite(){
			 return languageWrite;
		 }
		 
		 public void setLanguageWrite(String languageWrite){
			 this.languageWrite = languageWrite;
			 
		 }
		
		 @OneToOne(cascade = CascadeType.ALL)
			public Qualification getStudentQualification(){
				return studentQualification;
			}
			
			public void setStudentQualification(Qualification studentQualification){
				this.studentQualification = studentQualification;
			}
		/*
			@Id
			@GeneratedValue
			@Column(name="COURSE_ID")
			public long getCourseId() {
				return this.courseId;
			}

public void setCourseId(long courseId) {
				this.courseId = courseId;
			}*/
			
			
			
			public String getCourseName() {
				return this.courseName;
			}

public void setCourseName(String courseName) {
				this.courseName = courseName;
			}
}

When does the error appear actually?? If it occurs when you enter a URL into the browser, then tell us that URL otherwise if it happens when you submit a form, then please post the code of that form. I think the error appears when you try to list all students as validation happens in that case and since there is no "input" result defined, you get the 404 error message. You'll have to tell struts to skip validation in case of StudentAction.list() method. You can find more info on how to do that here...

Ankit Garg wrote:When does the error appear actually?? If it occurs when you enter a URL into the browser, then tell us that URL otherwise if it happens when you submit a form, then please post the code of that form. I think the error appears when you try to list all students as validation happens in that case and since there is no "input" result defined, you get the 404 error message. You'll have to tell struts to skip validation in case of StudentAction.list() method. You can find more info on how to do that here...

Thanks by use of interceptor for list action it work perfectly.

basicStackHibernate doesn't have validation interceptor in it. If you had used the struts basicStack in your action that would've worked too (or the solution that I gave you earlier)...