Exception while running struts2 application.

[hemanth acharya]

Hi all,

I am building a simple struts application using struts-2.1.6, but i am getting the following exception.

java.lang.NoSuchMethodException: struts2.LoginAction.execute()()
	java.lang.Class.getMethod(Unknown Source)
	org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.getActionMethod(AnnotationValidationInterceptor.java:75)
	org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:47)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:148)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:128)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)
	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
	org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)
	org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:76)

My struts xml is the following...

<?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.enable.DynamicMethodInvocation" value="false"></constant>
	<constant name="struts.devMode" value="false" />
	<constant name="struts.custom.i18n.resources" value="ApplicationResources"></constant>

	<package name="sampleStrutapp" extends="struts-default">

		<action name="login" class="struts2.LoginAction">
		   <result name="success">/checkValidation.jsp</result>
		   <result name="error">/HelloWorld.jsp</result>
		</action>

	</package>
	
	<package name="struts2" extends="json-default">
	  
	  <action name="populate" class="struts2.Populating">
	    <result type="json">
	     <param name="root">popdata</param>
	     <param name="noCache">true</param>
	    </result>
	  
	  </action>
	
	
	</package>

</struts>

The following is my lib structure..

antlr-2.7.6.jar
commons-collections-3.1.jar
commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-logging-1.1.1.jar
dom4j-1.6.1.jar
freemarker-2.3.13.jar
jsonplugin-0.32.jar
ognl-2.6.11.jar
struts2-convention-plugin-2.1.6.jar
struts2-core-2.1.6.jar
xwork-2.1.2.jar

Suggestions appreciated..

Thanks and regards,
Hemanth.

[Joe Ess]

java.lang.NoSuchMethodException: struts2.LoginAction.execute()()

It looks like your struts2.LoginAction class does not have a method named "execute".

[hemanth acharya]

Joe,

It has a execute method !..
The following is my action class...

package struts2;  
  
import java.util.List;  
  
import com.opensymphony.xwork2.*;  
import org.apache.catalina.connector.Request;  
import data.Details;  
import com.Various_functions;  
//import javax.servlet.http.HttpServletRequest;  
//import javax.servlet.http.HttpServletResponse;  
  
public class Populating extends ActionSupport {  
  
    /** 
     *  
     */  
    private static final long serialVersionUID = 1L;  
      
    public String usrname;  
    public String email;  
    public String lang;  
    public String gender;  
    public String comp;  
    public String desg;  
    public int rownum;  
    public int row;  
    public int getRow() {  
        return row;  
    }  
  
    public void setRow(int row) {  
        this.row = row;  
    }  
    private String popdata;  
      
    public String getPopdata() {  
        return popdata;  
    }  
  
    public void setPopdata(String popdata) {  
        this.popdata = popdata;  
    }  
  
    public int getRownum() {  
        return rownum;  
    }  
  
    public void setRownum(int rownum) {  
        this.rownum = rownum;  
    }  
  
    public String execute(){  
      
      
    Various_functions funct = new Various_functions();  
      
    List<Details> dev = funct.populate(this.getRow());  
      
    popdata = dev.get(0).getCompName()+","+dev.get(0).getDesig()+","+dev.get(0).getEmailId()+","+dev.get(0).getGender()+","+dev.get(0).getLang()+","+dev.get(0).getUserName();  
  
      
    System.out.println("In action class");  
    return "success";  
    }  
      
    public String getUsrname() {  
        return usrname;  
    }  
    public void setUsrname(String usrname) {  
        this.usrname = usrname;  
    }  
    public String getEmail() {  
        return email;  
    }  
    public void setEmail(String email) {  
        this.email = email;  
    }  
    public String getLang() {  
        return lang;  
    }  
    public void setLang(String lang) {  
        this.lang = lang;  
    }  
    public String getGender() {  
        return gender;  
    }  
    public void setGender(String gender) {  
        this.gender = gender;  
    }  
    public String getComp() {  
        return comp;  
    }  
    public void setComp(String comp) {  
        this.comp = comp;  
    }  
    public String getDesg() {  
        return desg;  
    }  
    public void setDesg(String desg) {  
        this.desg = desg;  
    }  
      
      
  
}  

Regards,
hemanth.

[Joe Ess]

It has a execute method !..

The error is in a class called struts2.LoginAction. You posted the source for a class named struts2.Populating.

[hemanth acharya]

Joe,

My bad !! I apologize for that.... Here is the Login.action and my struts xml...

package struts2;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport {
	private static final long serialVersionUID = 1L;
	
	private String username;
	private String password;
	
	public String execute()  {
		
		 if(this.username.equals("admin") && this.password.equals("test")){
			 addActionMessage("Successfully logged in!!");
			 return "success";
		 }
		 else{
			 addActionError("Invalid User!!Try again");
			 return "error";
		 }
		 
		 
	}

	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;
	}

}

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>
	
	<constant name="struts.enable.DynamicMethodInvocation" value="false"></constant>
	<constant name="struts.devMode" value="false" />
	<constant name="struts.custom.i18n.resources" value="ApplicationResources"></constant>

	<package name="sampleStrutapp" extends="struts-default">

		<action name="login" class="struts2.LoginAction">
		   <result name="success">/checkValidation.jsp</result>
		   <result name="error">/HelloWorld.jsp</result>
		</action>

	</package>
	
	<package name="struts2" extends="json-default">
	  
	  <action name="populate" class="struts2.Populating">
	    <result type="json">
	     <param name="root">popdata</param>
	     <param name="noCache">true</param>
	    </result>
	  
	  </action>
	
	
	</package>

</struts>

[Joe Ess]

If your source contains the method, I suspect that the .class file is an old version that does not. How are you building your web application?

[hemanth acharya]

joe,

I am building using tomcat,

Here's my classpath file,

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry kind="src" path="src"/>
	<classpathentry kind="src" path="Resources"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jre6">
		<attributes>
			<attribute name="owner.project.facets" value="jst.java"/>
		</attributes>
	</classpathentry>
	<classpathentry kind="con" path="org.eclipse.jst.server.core.container/org.eclipse.jst.server.tomcat.runtimeTarget/Apache Tomcat v6.0">
		<attributes>
			<attribute name="owner.project.facets" value="jst.web"/>
		</attributes>
	</classpathentry>
	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.web.container"/>
	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
	<classpathentry kind="output" path="build/classes"/>
</classpath>

Regards,
hemanth.

[Joe Ess]

hemanth acharya wrote:
I am building using tomcat,

Tomcat is a servlet container, not a build tool. I am unfamiliar with this classpath file, but it looks like something from Eclipse.

[hemanth acharya]

Joe,

yes, I am using eclipse.

[Joe Ess]

So are you running Tomcat from Eclipse, or are you packaging the application and deploying it to Tomcat independently?

[hemanth acharya]

Joe,

The former, running tomcat from eclipse.

[Joe Ess]

Did you try rebuilding your application?

[hemanth acharya]

Joe,

Yep, i tried everything.. seems stuck there...

[Joe Ess]

I don't use Eclipse to run Tomcat, so I can't help you. Perhaps you can get some help in our IDE Forum if you can describe your problem effectively.

[hemanth acharya]

Joe,
Ok, thank you..