Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/denny/Working/gwt-linux-1.5.0/libswt-pi-gtk-3235.so: /home/denny/Working/gwt-linux-1.5.0/libswt-pi-gtk-3235.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1751)

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oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert
(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert
(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert
(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert
(persistableObject.java:238)
oracle.dbtools.metadata.persistence.persisitableObject.dolnInsert(persistableObject.java:238)
....

oracle.dbtools.metadata.persistence.persistenceException: Protocol Violation

SET ORACLE_HOME=%CD%
start sqldeveloper.exe

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		<buildCommand>
			<name>org.jboss.tools.common.verification.verifybuilder</name>
			<arguments>
			</arguments>
		</buildCommand>
		<buildCommand>
			<name>org.jboss.tools.seam.core.seambuilder</name>
			<arguments>
			</arguments>
		</buildCommand>

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
	<name>sample</name>
	<comment></comment>
	<projects>
	</projects>
	<buildSpec>
		<buildCommand>
			<name>org.eclipse.jdt.core.javabuilder</name>
			<arguments>
			</arguments>
		</buildCommand>
		<buildCommand>
			<name>org.jboss.tools.common.verification.verifybuilder</name>
			<arguments>
			</arguments>
		</buildCommand>
		<buildCommand>
			<name>org.jboss.tools.seam.core.seambuilder</name>
			<arguments>
			</arguments>
		</buildCommand>		
		<buildCommand>
			<name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
			<triggers>auto,full,incremental,</triggers>
			<arguments>
				<dictionary>
					<key>LaunchConfigHandle</key>
					<value><project>/explode.launch</value>
				</dictionary>
			</arguments>
		</buildCommand>
	</buildSpec>
	<natures>
		<nature>org.eclipse.jdt.core.javanature</nature>
		<nature>org.hibernate.eclipse.console.hibernateNature</nature>
		<nature>org.jboss.tools.seam.core.seamnature</nature>
	</natures>
</projectDescription>

import org.jboss.seam.annotations.Name;

@Name("testELExpression")
public class TestElExpression {
	public String getName() {
		return "deng.yin@gmail.com";
	}
	
	public void doListener() {
		
	}
}

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1. Environment

2. Steps

3. Start/Stop slave thread by Java code.

We can start/stop the slave thread by java code(actually by JDBC). First create a user with all privileges.

mysql> GRANT ALL PRIVILEGES ON *.* TO slave@"%"  IDENTIFIED BY 'slave';

OK, Now, We have a user which use to start/stop slave thread. The following code is how to start/stop slave thread.

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;


public class Slave {

    /**
     * @param args
     */
    public static void main(String[] args) {
        String connString = "jdbc:mysql://192.168.1.202:3306/RMC_BILLING";
        try {
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        try {
            Connection connection = DriverManager.getConnection(connString, "slave", "slave");
            PreparedStatement ps = connection.prepareStatement("start slave");
            //The next line is used to stop the slave.
            //PreparedStatement ps = connection.prepareStatement("stop slave");
            int executeUpdate = ps.executeUpdate();
            System.out.println(executeUpdate);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}


在项目中有这样的需求， 就是想控制定期的slave thread。 在网上找到了http://forums.mysql.com/read.php?26,43705,43705#msg-43705  上面有两种方式。 不过都比较复杂。 后面不知道怎么就突然想到了 是不是可以用jdbc去做。 然后马上写了个Main跑了一下， 果然可以。

参考： http://www.ningoo.net/html/2007/mysql_replication_configuration.html

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Set up CAS for SSO ¶

1. Create Server Certificate for JBoss

CAS largely depends on secure transfer layer (STL), so having SSL enabled on JBoss server is critical to this application.

Firstly we will create the server certificate:

keytool -genkey -alias jboss -keyalg RSA -keystore server.keystore
or
keytool -genkey -alias devdap1 -keyalg RSA -keystore devdap1.keystore

Caution:

1: Give the keystore a password (hereinafter referred as keystore password). There is another password in the end, which will be referred to as alias password.

2: Use the full domain name of the server machine as the first and last name, as well as the organization unit. Don’t use the IP address here, or you will fail the SSL verification later. And try to avoid using “localhost” also since you may need to deploy CAS on some dedicated server and there are applications that are trying to access it from some remote JVM.

3: We may have multiple machines that need their own certificates and do the cross-certified (we will cover this later), so a wise way to arrange the them is to name it based on the hostname. In the above example, say we have a machine whose hostname is devdap1, we can name the keystore file as devdap1.keystore and give it an alias as devdap1.

Then we will export a server certificate for installation on the client machines, we actually can skip these steps since in a Browser client, the browser will download the server cert automatically.

keytool -export -file devdap1.crt -alias devdap1 -keystore devdap1.keystore

keytool -import -keystore "%JAVA_HOME%\jre\lib\security\cacerts” -file devdap1.crt -alias devdap1

(On Linux: keytool -import -keystore $JAVA_HOME/jre/lib/security/cacerts -file devdap1.crt -alias devdap1)

2. Cross-Certified

We may have a group of servers to host all the applications. Let’s say we have a CAS server deployed on a JBoss server running on a box with the hostname devdap1 (the full domain name is devdap1.monitor110.com). And we have another box named “reader” hosting the reader application. When “reader” wants to access CAS server, it needs to install devdap1’s certificate installed in the JVM that runs the reader application.

Firstly, we copy the devdap1.crt file that generated in the above step to the reader machine.

Then we run the following command to install the certificate:

keytool -import -keystore "%JAVA_HOME%\jre\lib\security\cacerts” -file devdap1.crt -alias devdap1

(On Linux: keytool -import -keystore $JAVA_HOME/jre/lib/security/cacerts -file devdap1.crt -alias devdap1)

The default password of keystore cacerts is “changeit”.

You may also want to delete the alias first if that alias has been installed before.

keytool -delete -keystore $JAVA_HOME/jre/lib/security/cacerts -alias devdap1

If you want to enable SSL on “reader” machine and use proxyTicket over SSL, you need to generate the certificate of “reader” machine, and install it on CAS (devdap1) machine as well. Let’s say you will generate files “reader1.keystore” and “reader1.crt”, and use an alias “reader1” for this certificate when doing import/export and installation. This way you won’t mess up all those certificates.

3. Enable SSL for JBoss

We take JBoss App Server 4.0.3 as example. We use $JBOSS_HOME to refer to the location where JBoss is installed.

Firstly copy the server.keystore file that generated in the above step to the location of $JBOSS_HOME/server/default/conf.

Then modify this file: $JBOSS_HOME/server/default/deploy/jbossweb-tomcat55.sar/server.xml. Uncomment this configuration directive:

<!-- SSL/TLS Connector configuration using the admin devl guide keystore -->

      <Connector port="8443" address="${jboss.bind.address}"
           maxThreads="100" strategy="ms" maxHttpHeaderSize="8192"
           emptySessionPath="true"
           scheme="https" secure="true" clientAuth="false" 
           keystoreFile="${jboss.server.home.dir}/conf/server.keystore"
           keystorePass="123456" sslProtocol = "TLS" />

The keystorePass used here is the key store password we mentioned in the above step 1.

Restart the JBoss server and verify the SSL installation by entering this URL in the browser: https://localhost:8443/

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        <table>
        	<tr>
        		<td><a t:type="OrderColumn" orderProperty="country" paging="paging">Country</a> </td>
        		<td><a t:type="OrderColumn" orderProperty="language" paging="paging">Language</a> </td>
        	</tr>
        	<tr t:type="Loop" source="items" value="item">
        		<td>${item.country}</td>
        		<td>${item.language}</td>
        	</tr>
        	<tr>
        		<td colspan="2"><div t:type="PageNavigation" paging="paging" useAll="false"></div></td>
        	</tr>
        </table>

package com.javaeye.com.dengyin000.tapestry.quickstart.pages;

import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import org.apache.tapestry.annotations.Persist;

import com.javaeye.com.dengyin000.tapestry.quickstart.utils.Paging;

/**
 * Start page of application quickstart.
 */
public class Start
{
	@Persist("session")
	private Paging paging;
	
	private Locale item;
	
	public Locale getItem() {
		return item;
	}

	public Date getCurrentTime() 
	{ 
		return new Date(); 
	}
	
	public Locale[] getAvailableLocales(){
		return Locale.getAvailableLocales();
	}
	
	public void pageLoaded(){
		if (paging == null){
			paging = new Paging("country");
		}
	}
	
	public List<Locale> getItems(){
		Locale[] availableLocales = Locale.getAvailableLocales();
		List<Locale> list = Arrays.asList(availableLocales);
		paging.setItemCount(list.size());
		return list.subList(paging.getFirstResult(), paging.getFirstResult() + paging.getMaxResults());
	}

	public Paging getPaging() {
		return paging;
	}

	public void setPaging(Paging paging) {
		this.paging = paging;
	}

	public void setItem(Locale item) {
		this.item = item;
	}
}

package com.javaeye.com.dengyin000.tapestry.quickstart.utils;

import java.io.Serializable;
import java.util.List;

public class Paging implements Serializable {

	private static final long serialVersionUID = 4260574632101852340L;

	public static int ROWS_PER_PAGE = 15;

	public static int ALL = -1;

	private int firstResult = 0;

	private int maxResults = ROWS_PER_PAGE;

	/**
	 * One or more property names separated by comma (,). They are later used in
	 * ORDER BY clause.
	 */
	private String orderProperties;

	private boolean orderDescending = false;

	private int pageNo = 0;

	private long itemCount = 0;

	private String alias = null;

	protected boolean recalculateFirst = false; // enabled by setPageNo or
												// setItemCount

	private transient List results;

	public Paging(String orderColumn) {
		setOrderProperties(orderColumn);
	}

	public Paging(String orderColumn, boolean orderDescending) {
		setOrderProperties(orderColumn);
		setOrderDescending(orderDescending);
	}

	public Paging(String orderColumn, int pageNo) {
		setOrderProperties(orderColumn);
		setPageNo(pageNo);
	}

	public Paging(int firstResult, int maxResults, String orderColumn,
			boolean orderDescending) {
		this(firstResult, maxResults, orderColumn, null, orderDescending);
	}

	public Paging(int firstResult, int maxResults, String orderColumn,
			String alias, boolean orderDescending) {
		setFirstResult(firstResult);
		setMaxResults(maxResults);
		setOrderProperties(orderColumn);
		setOrderDescending(orderDescending);
		setAlias(alias);
	}

	public boolean isAll() {
		return pageNo == ALL;
	}

	public int getFirstResult() {
		if (this.recalculateFirst == true) {
			if (pageNo != ALL) {
				if (pageNo < 0) {
					pageNo = 0;
				}
				firstResult = pageNo * maxResults;
				if (firstResult >= itemCount) {
					firstResult = pageNo = 0;
				}
			} else {
				firstResult = 0;
			}
			this.recalculateFirst = false;
		}
		return firstResult;
	}

	public void changeSortColumn(String sortColumn) {
		if (sortColumn != null && sortColumn.equals(getOrderProperties())) {
			setOrderDescending(isOrderDescending() == true ? false : true); // change
																			// order
																			// desc
		} else {
			setOrderDescending(false); // set ascending order
			setOrderProperties(sortColumn);
		}
	}

	public void setFirstResult(int firstResult) {
		this.firstResult = firstResult;
	}

	public int getMaxResults() {
		return maxResults;
	}

	public void setMaxResults(int maxResults) {
		this.maxResults = maxResults;
	}

	public String getOrderProperties() {
		return orderProperties;
	}

	public void setOrderProperties(String sortColumn) {
		this.orderProperties = sortColumn;
	}

	public boolean isOrderDescending() {
		return orderDescending;
	}

	public void setOrderDescending(boolean sortOrder) {
		this.orderDescending = sortOrder;
	}

	public long getItemCount() {
		return itemCount;
	}

	public void setItemCount(long itemCount) {
		this.itemCount = itemCount;
		this.recalculateFirst = true;
	}

	public int getPageNo() {
		return pageNo;
	}

	public void setPageNo(int pageNo) {
		this.pageNo = pageNo;
		this.recalculateFirst = true;
	}

	public String getAlias() {
		return alias;
	}

	public void setAlias(String alias) {
		this.alias = alias;
	}

	public void setResults(List results) {
		this.results = results;
	}

	public List getResults() {
		return results;
	}

	/**
	 * apply order properties to the query string.
	 * @param query
	 * @param pas
	 * @return
	 */
	public static String buildOrderBy(String query, Paging pas) {
	    //FIXME
		if (pas != null && pas.getOrderProperties() != null) {
			StringBuffer orderBy = new StringBuffer();
			/** Oracle 
			int groupindex = query.toLowerCase().indexOf(" group ");
            if(groupindex>0){
                int i = query.toLowerCase().indexOf(" by ",groupindex+1);
                if(i>groupindex && (i-groupindex)<12)return query;
            }
			**/
			int posOrder = query.toLowerCase().indexOf(" order ");
			if (posOrder > 0) {
				int posBy = query.toLowerCase().indexOf(" by ", posOrder - 1);
				if (posBy >= 0) {
					orderBy.append(query.substring(0, posOrder));
				} else
					orderBy.append(new String(query));
			} else {
				orderBy.append(new String(query));
			}
			
			orderBy.append(" order by ");
			String[] orderCols = pas.getOrderProperties().split(",");
			for (int i = 0; i < orderCols.length; i++) {
				if (i > 0) {
					orderBy.append(", ");
				}
				if (pas.getAlias() != null) {
					orderBy.append(pas.getAlias() + ".");
				}
				
				orderBy.append(orderCols[i]);
				
				if (pas.isOrderDescending()) {
					orderBy.append(" desc");
				}
			}
			return orderBy.toString();
		}
		return query;

	}

	/**
	 * 'from User' or 'select name from User' will be changed to 
	 * 'select count(*) from User'
	 * replace select fields with count(*)
	 * @param queryString
	 * @return
	 */
	public static String buildItemCount(String queryString) {
		int posOfFrom = queryString.toLowerCase().indexOf("from ");
		return "select count(*) " + queryString.substring(posOfFrom);
	}
}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<span xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">
	<a t:type="ActionLink" t:id="changeOrderLink"  t:context="orderProperty">
		<t:body/><img src="${icon}" class="t-sort-icon" alt="${iconLabel}"/>
	</a>
</span>

package com.javaeye.com.dengyin000.tapestry.quickstart.components;

import org.apache.tapestry.Asset;
import org.apache.tapestry.annotations.Parameter;
import org.apache.tapestry.annotations.Path;
import org.apache.tapestry.ioc.annotations.Inject;

import com.javaeye.com.dengyin000.tapestry.quickstart.utils.Paging;

public class OrderColumn {

	@Parameter(required=true, defaultPrefix="literal")
	private String orderProperty;
	
	@Parameter(required=true)
	private Paging paging;

    @Inject
    @Path("sort-asc.png")
    private Asset _ascendingAsset;

    @Inject
    @Path("sort-desc.png")
    private Asset _descendingAsset;

    @Inject
    @Path("sortable.png")
    private Asset _sortableAsset;	

	public String getOrderProperty() {
		return orderProperty;
	}

	public void setOrderProperty(String orderProperty) {
		this.orderProperty = orderProperty;
	}

	public Paging getPaging() {
		return paging;
	}

	public void setPaging(Paging paging) {
		this.paging = paging;
	}
	
	public void onActionFromChangeOrderLink(String orderProperty){
		paging.changeSortColumn(orderProperty);
	}
	
	public Asset getIcon(){
        if (isActiveSortColumn()) {
        	return getPaging().isOrderDescending() ?  _descendingAsset : _ascendingAsset;
        }

        return _sortableAsset;
    }
	
	private boolean isActiveSortColumn() {
		return orderProperty.equals(getPaging().getOrderProperties());
	}

	public String getIconLabel(){
        String key = isActiveSortColumn() ? ( getPaging().isOrderDescending() ? "descending": "ascending")
                : "sortable";

        return key;
	}
}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<span t:type="If"  t:test="navigationDisplayed" xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">
	<table border="0">
	<tr>
	  <td> </td>
	  <td class="navigation">
	  	<span t:type="If" t:test="notUnderAllStatus">
	  		<a t:type="ActionLink" t:id="first" t:context="first" t:disabled="firstDisabled">|<<</a>
	  		 
	  		<a t:type="ActionLink" t:id="previous" t:context="previous" t:disabled="previousDisabled"><<</a>
	  		 
	  		Page ${currentPage} Of ${pageCount}
	  		<a t:type="ActionLink" t:id="next" t:context="next" t:disabled="nextDisabled">>></a>
	  		 
	  		<a t:type="ActionLink" t:id="last" t:context="last" t:disabled="lastDisabled">>>|</a>
	  		 
	  		<span t:type="If" t:test="useAll">
	  			<a t:type="ActionLink" t:context="all" t:disabled="allDisabled">All</a>
	  			<t:parameter name="else">
	  				<a t:type="ActionLink" t:id="pageStatus" t:disabled="prop:notUnderAllStatus">View Paginated</a>
	  			</t:parameter>
	  		</span>
	  	</span>
	  </td>
	</tr>
	</table>
</span>

com.javaeye.com.dengyin000.tapestry.quickstart.components;

import org.apache.tapestry.annotations.OnEvent;
import org.apache.tapestry.annotations.Parameter;
import org.apache.tapestry.annotations.Persist;

import com.javaeye.com.dengyin000.tapestry.quickstart.utils.Paging;

public class PageNavigation {

	@Persist
	private boolean underAllStatus;
	@Parameter(required=true)
	private Paging paging;
	
	private Integer num;
	
	@Parameter
	private boolean useAll;

	public boolean isUseAll() {
		return useAll;
	}

	public void setUseAll(boolean useAll) {
		this.useAll = useAll;
	}

	public boolean isUnderAllStatus() {
		return underAllStatus;
	}
	
	public boolean getNotUnderAllStatus(){
		return !underAllStatus;
	}

	public void setUnderAllStatus(boolean underAllStatus) {
		this.underAllStatus = underAllStatus;
	}

	public Paging getPaging() {
		return paging;
	}

	public void setPaging(Paging paging) {
		this.paging = paging;
	}

	public Integer getNum() {
		return num;
	}

	public void setNum(Integer num) {
		this.num = num;
	}
	
	public void onActionFromFirst(Integer newPageNo){
		changePageNo(newPageNo);
	}
	public void onActionFromPrevious(Integer newPageNo){
		changePageNo(newPageNo);
	}
	public void onActionFromNext(Integer newPageNo){
		changePageNo(newPageNo);
	}
	public void onActionFromLast(Integer newPageNo){
		changePageNo(newPageNo);
	}	
	  public void changePageNo(Integer newPageNo) {

		    getPaging().setPageNo(newPageNo == null ? Paging.ALL : newPageNo.intValue());
//		    setPaging(getPaging()); // persist!
		    
		    if (newPageNo == null)
		    	setUnderAllStatus(true);
		  }

		  public Integer[] getAllPageNumbers() {
		    int size = getLast().intValue() + 1;
		    Integer[] allPages = new Integer[size];
		    for (int i = 0; i < size; i++) {
		      allPages[i] = new Integer(i);
		    }
		    return allPages;
		  }

		  public String getPageLabel() {
		    return "" + (getNum().intValue() + 1);
		  }

		  public Integer getFirst() {
		    return new Integer(0);
		  }

		  public Integer getPrevious() {
		    return new Integer(getPaging().getPageNo() - 1);
		  }

		  public Integer getNext() {
		    return new Integer(getPaging().getPageNo() + 1);
		  }

		  public Integer getLast() {
		    int last = (int)Math.ceil((double)getPaging().getItemCount() / getPaging().getMaxResults()) - 1;
		    return new Integer(last);
		  }

		  public Integer getAll() {
		    return null;
		  }

		  public boolean isFirstDisabled() {
		    return getPaging().getPageNo() == 0;
		  }

		  public boolean isPreviousDisabled() {
		    return isFirstDisabled() || getPaging().getPageNo() == Paging.ALL;
		  }

		  public boolean isSelectedPage() {
		    return getPaging().getPageNo() == getNum().intValue();
		  }

		  public boolean isNextDisabled() {
		    return isLastDisabled() || getPaging().getPageNo() == Paging.ALL;
		  }

		  public boolean isLastDisabled() {
		    return getPaging().getPageNo() == getLast().intValue();
		  }

		  public boolean isAllDisabled() {
		    return getPaging().getPageNo() == Paging.ALL || getLast().intValue() == 0;
		  }

		  public boolean isNavigationDisplayed() {
		    return getLast().intValue() > 0;
		  }
		  
		  @OnEvent(component="pageStatus")
		  public void enterPagingStatus(){
			  setUnderAllStatus(false);
			  
			  getPaging().setPageNo(0);
//			  setPaging(getPaging());
		  }
		  
		  public int getCurrentPage(){
			  return paging.getPageNo() + 1;
			  
		  }
		  
		  public int getPageCount(){
			  return getLast() + 1;
		  }
}

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package com.javaeye.dengyin2000.wallet.interceptor;

import java.util.Map;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;
import org.apache.struts2.StrutsStatics;

import com.javaeye.dengyin2000.wallet.dao.UserDAO;
import com.javaeye.dengyin2000.wallet.dao.UserNotFoundException;
import com.javaeye.dengyin2000.wallet.domains.User;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

public class LoginInterceptor extends AbstractInterceptor {
	public static final String USER_SESSION_KEY="wallet.session.user";
	public static final String COOKIE_REMEMBERME_KEY="wallet.cookie.rememberme";
	public static final String GOING_TO_URL_KEY="GOING_TO";
	
	private UserDAO userDao;

	@Override
	public String intercept(ActionInvocation invocation) throws Exception {
		
		ActionContext actionContext = invocation.getInvocationContext();
		HttpServletRequest request= (HttpServletRequest) actionContext.get(StrutsStatics.HTTP_REQUEST);
		
		Map session = actionContext.getSession();
		if (session != null && session.get(USER_SESSION_KEY) != null){
			return invocation.invoke();
		}
		
		Cookie[] cookies = request.getCookies();
		if (cookies!=null) {
			for (Cookie cookie : cookies) {
				if (COOKIE_REMEMBERME_KEY.equals(cookie.getName())) {
					String value = cookie.getValue();
					if (StringUtils.isNotBlank(value)) {
						String[] split = value.split("==");
						String userName = split[0];
						String password = split[1];
						try {
							User user = userDao
									.attemptLogin(userName, password);
							session.put(USER_SESSION_KEY, user);
						} catch (UserNotFoundException e) {
							setGoingToURL(session, invocation);
							return "login";
						}
					} else {
						setGoingToURL(session, invocation);
						return "login";
					}
					return invocation.invoke();
				}
			}
		}
		setGoingToURL(session, invocation);
		return "login";
	}

	private void setGoingToURL(Map session, ActionInvocation invocation){
		String url = "";
		String namespace = invocation.getProxy().getNamespace();
		if (StringUtils.isNotBlank(namespace) && !namespace.equals("/")){
			url = url + namespace;
		}
		String actionName = invocation.getProxy().getActionName();
		if (StringUtils.isNotBlank(actionName)){
			url = url + "/" + actionName + ".action";
		}
		session.put(GOING_TO_URL_KEY, url);
	}
	
	public UserDAO getUserDao() {
		return userDao;
	}

	public void setUserDao(UserDAO userDao) {
		this.userDao = userDao;
	}

}

<?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">
		<interceptors>
			<interceptor name="loginInterceptor" class="loginInterceptor"></interceptor>
			<interceptor-stack name="loginDefaultStack">
				<interceptor-ref name="loginInterceptor"></interceptor-ref>
				<interceptor-ref name="defaultStack"></interceptor-ref>
			</interceptor-stack>
		</interceptors>
		<default-interceptor-ref name="loginDefaultStack"></default-interceptor-ref>
		<global-results>
			<result name="login" type="redirect">/login.jsp</result>
		</global-results>		
		<action name="index" class="indexAction">
			<result>/index.jsp</result>
		</action>
		<action name="logout" class="logoutAction"></action>
		
		<action name="login" class="loginAction" method="login">
			<result type="redirect">${goingToURL}</result>
			<result name="input">/login.jsp</result>
			<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>
		
		<action name="register" class="registerAction">
			<result type="redirect">/login.jsp</result>
			<result name="input">/register.jsp</result>
			<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>
	</package>
</struts>

<%@taglib prefix="s" uri="/struts-tags" %>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>Wallet-Login</title>
</head>
<body>
<h2>Login</h2> 
<s:actionmessage/>
<s:actionerror/>
<s:form action="login" method="post" validate="false" theme="xhtml">
<s:textfield name="loginName" label="Username"></s:textfield><br/>
<s:password name="password" label="Password"></s:password><br/>
<s:checkbox label="Remember Me" name="rememberMe"></s:checkbox>
<s:submit value="%{'Login'}"></s:submit> 
</s:form>
<a href="register.jsp">Register</a>
</body>
</html>

package com.javaeye.dengyin2000.wallet.actions;

import java.util.Map;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.apache.struts2.interceptor.CookiesAware;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.interceptor.SessionAware;

import com.javaeye.dengyin2000.wallet.dao.UserDAO;
import com.javaeye.dengyin2000.wallet.dao.UserNotFoundException;
import com.javaeye.dengyin2000.wallet.domains.User;
import com.javaeye.dengyin2000.wallet.interceptor.LoginInterceptor;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport implements ServletResponseAware, ServletRequestAware, SessionAware, CookiesAware{

	private UserDAO userDao;
	private String loginName;
	private String password;
	private boolean rememberMe;
	private HttpServletResponse response;
	private HttpServletRequest request;
	private Map session;
	private Map cookies;
	private String goingToURL;
	public String getGoingToURL() {
		return goingToURL;
	}
	public void setGoingToURL(String goingToURL) {
		this.goingToURL = goingToURL;
	}
	public boolean isRememberMe() {
		return rememberMe;
	}
	public void setRememberMe(boolean rememberMe) {
		this.rememberMe = rememberMe;
	}
	public String getLoginName() {
		return loginName;
	}
	public void setLoginName(String loginName) {
		this.loginName = loginName;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	
	
	public String login()throws Exception{
		try {
			User user = userDao.attemptLogin(loginName, password);
			if (rememberMe){
				Cookie cookie = new Cookie(LoginInterceptor.COOKIE_REMEMBERME_KEY, user.getLoginName() + "==" + user.getPassword());
				cookie.setMaxAge(60 * 60 * 24 * 14);
				response.addCookie(cookie);
			}
			session.put(LoginInterceptor.USER_SESSION_KEY, user);
			String goingToURL = (String) session.get(LoginInterceptor.GOING_TO_URL_KEY);
			if (StringUtils.isNotBlank(goingToURL)){
				setGoingToURL(goingToURL);
				session.remove(LoginInterceptor.GOING_TO_URL_KEY);
			}else{
				setGoingToURL("index.action");
			}
			return SUCCESS;
		} catch (UserNotFoundException e) {
			addActionMessage("user name or password is not corrected.");
			return INPUT;
		}
	}
	public UserDAO getUserDao() {
		return userDao;
	}
	public void setUserDao(UserDAO userDao) {
		this.userDao = userDao;
	}
	public void setServletResponse(HttpServletResponse response) {
		this.response = response;
	}
	public void setServletRequest(HttpServletRequest request) {
		this.request = request;
	}
	public void setSession(Map session) {
		this.session = session;
	}
	public void setCookiesMap(Map cookies) {
		this.cookies = cookies;
	}
}

package com.javaeye.dengyin2000.wallet.actions;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.javaeye.dengyin2000.wallet.interceptor.LoginInterceptor;
import com.opensymphony.xwork2.ActionSupport;

public class LogoutAction extends ActionSupport implements ServletRequestAware , ServletResponseAware{

	private HttpServletRequest request;
	private HttpServletResponse response;

	public String execute() throws Exception{
		HttpSession session = request.getSession(false);
		if (session!=null)
			session.removeAttribute(LoginInterceptor.USER_SESSION_KEY);
		
		Cookie[] cookies = request.getCookies();
		if (cookies!=null) {
			for (Cookie cookie : cookies) {
				if (LoginInterceptor.COOKIE_REMEMBERME_KEY.equals(cookie
						.getName())) {
					cookie.setValue("");
					cookie.setMaxAge(0);
					response.addCookie(cookie);
					return "login";
				}
			}
		}
		return "login";
	}

	public void setServletRequest(HttpServletRequest request) {
		this.request = request;
	}

	public void setServletResponse(HttpServletResponse response) {
		this.response = response;
	}

}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC 
	"-//SPRING//DTD BEAN//EN" 
	"http://www.springframework.org/dtd/spring-beans.dtd">
	
<beans>
	<!-- Example of SAF2 action instantiated by Spring -->
    <!-- bean id="helloWorldAction" class="tutorial.HelloWorldAction" singleton="false" />
     -->
     <bean id="indexAction" class="com.javaeye.dengyin2000.wallet.actions.IndexAction" singleton="false"></bean>
     <bean id="loginAction" class="com.javaeye.dengyin2000.wallet.actions.LoginAction" singleton="false">
     	<property name="userDao" ref="userDao" />
     </bean>
     
     <bean id="logoutAction" class="com.javaeye.dengyin2000.wallet.actions.LogoutAction" singleton="false"></bean>
     
     <bean id="registerAction" class="com.javaeye.dengyin2000.wallet.actions.RegisterAction" singleton="false"></bean>
     
     <!-- the following is struts2 interceptors -->
     <bean id="loginInterceptor" class="com.javaeye.dengyin2000.wallet.interceptor.LoginInterceptor">
     	<property name="userDao" ref="userDao" />
     </bean>
     
     <bean id="userDao" class="com.javaeye.dengyin2000.wallet.dao.UserDAOImpl">
     </bean>
</beans>

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mvn archetype:create \
  -DarchetypeGroupId=org.apache.maven.archetypes \
  -DgroupId=com.mycompany.app \
  -DartifactId=my-app

  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
                      http://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.0.0
  com.mycompany.app
  my-app
  jar
  1.0-SNAPSHOT
  Maven Quick Start Archetype
  http://maven.apache.org
  
    
      junit
      junit
      3.8.1
      test
    
  

my-app
|-- pom.xml
`-- src
    |-- main
    |   `-- java
    |       `-- com
    |           `-- mycompany
    |               `-- app
    |                   `-- App.java
    `-- test
        `-- java
            `-- com
                `-- mycompany
                    `-- app
                        `-- AppTest.java

-DarchetypeArtifactId=maven-archetype-webapp

http://today.java.net/pub/a/today/2007/03/01/building-web-applications-with-maven-2.html

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MyGWT is an open source Java library for the Google Web Toolkit. The library helps developers easily create compelling desktop like AJAX web applications. No messing around with HTML, CSS, or images, all MyGWT widgets look great out the box. MyGWT is 100% native, using no external JavaScript code or libraries. Taka a look at the Explorer Demo to see MyGWT in action.

MyGWT has joined Ext JS. Ext JS is an amazing javascript framework and if you have not seen it you should really take a look. MyGWT can now leverage the Ext user interface. MyGWT is licensed under the Open Source LGPL 3.0 license.

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