Struts 注册、登陆、email实例解析

一、          web.xml

1.        <!-- Action Servlet Configuration -->

       <servlet>

          <servlet-name>action</servlet-name>

          <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

          <init-param>

          <param-name>config</param-name>

<param-value>/WEB-INF/struts-config.xml,/WEB-INF/struts-config-registration.xml</param-value>

          </init-param>

          <load-on-startup>1</load-on-startup>

          </servlet>

2.        <!-- Application Tag Library Descriptor -->

<taglib>

<taglib-uri>/WEB-INF/app.tld</taglib-uri>

     <taglib-location>/WEB-INF/app.tld</taglib-location>

  </taglib>

二、          struts-config.xml

1.          <form-beans>

           <!-- Logon form bean -->

               <form-bean  name="logonForm"

                     type="org.apache.struts.validator.DynaValidatorForm">

               <form-property name="username" type="java.lang.String"/>

               <form-property name="password" type="java.lang.String"/>

           </form-bean>

2.         <global-forwards>

              <forward  name="logoff"  path="/logoff.do"/>

                  <forward  name="logon"  path="/logon.jsp"/>

               <forward  name="success"  path="/mainMenu.jsp"/>

         </global-forwards>

3.          <action-mappings>

              ………………

    <action  path="/tour"  forward="/tour.htm"> </action>

………………

          </action-mappings>

4.         <controller>

         <!-- The "input" parameter on "action" elements is the name of a

         local or global "forward" rather than a module-relative path -->

         <set-property property="inputForward" value="true"/>

         </controller>

5.          <message-resources  parameter="zwd_10.ApplicationResources"/>

<message-resources parameter="org.apache.struts.webapp.example.AlternateApplicationResources"  key="alternate">

        </message-resources>

6.          <plug-in className="org.apache.struts.plugins.ModuleConfigVerifier"/>

<plug-in className="zwd_10.memory.MemoryDatabasePlugIn">

       <set-property property="pathname" value="/WEB-INF/database.xml"/>

         </plug-in>

<plug-in className="org.apache.struts.validator.ValidatorPlugIn">

       <set-property

property="pathnames"  value="/WEB-INF/validator-rules.xml,

         /WEB-INF/validation.xml"/>

         </plug-in>

三、          struts-config-registration.xml

定义Registration的有关操作:

1.        form-bean： registrationForm

2.        global-forwards：

    <forward   name="registration"  path="/registration.jsp"/>

3.       action-mappings：

    <action  path="/editRegistration"

             type="zwd_10.EditRegistrationAction"

             attribute="registrationForm"

             scope="request"

             validate="false">

      <forward name="success"  path="/registration.jsp"/>

    </action>

    <action  path="/saveRegistration"

             type="zwd_10.SaveRegistrationAction"

             name="registrationForm"

             scope="request"

             input="registration"/>

四、          Java文件内容

1.       Constants：// 常量类

public final class Constants {

           public static final String Package = "zwd_10";

              public static final String DATABASE_KEY = "database";

          public static final String SUBSCRIPTION_KEY = "subscription";

       public static final String USER_KEY = "user";             }

2.       User：// 接口

public interface User {

       public UserDatabase getDatabase();

       public String getFromAddress();

       public void setFromAddress(String fromAddress);

       public String getFullName();

       public void setFullName(String fullName);

public String getPassword();

public void setPassword(String password);

public String getReplyToAddress();

public void setReplyToAddress(String replyToAddress);

public Subscription[ ] getSubscriptions();

public String getUsername();

public Subscription createSubscription(String host);

public Subscription findSubscription(String host);

public void removeSubscription(Subscription subscription);          }

              MemoryUser：//实现User接口

3.       UserDatabase：// 接口

public interface UserDatabase {

       public User createUser(String username);

       public void close() throws Exception;

    public User findUser(String username);

    public User[ ] findUsers();

    public void open() throws Exception;

    public void removeUser(User user);

public void save() throws Exception;             }

              MemoryUserDatabase：//实现MemoryUserDatabase接口

4.       Subscription：// 接口

public interface Subscription {

       public boolean getAutoConnect();

       public void setAutoConnect(boolean autoConnect);

       public String getHost();

       public String getPassword();

       public void setPassword(String password);

       public String getType();

       public void setType(String type);

       public User getUser();

       public String getUsername();

       public void setUsername(String username);               }

MemorySubscription：//实现MemoryUserDatabase接口

5.       MemoryDatabasePlugIn：//实现PlugIn接口，在struts-config.xml中有说明

五、          app.tld（自定义的标签库）

1.       声明CheckLogonTag ―――― 对应CheckLogonTag.java

CheckLogonTag：// extends TagSupport接口

2.       声明LinkSubscriptionTag ―――― 对应LinkSubscriptionTag.java

LinkSubscriptionTag：// extends TagSupport接口

3.       声明LinkUserTag ―――― 对应LinkUserTag.java

LinkUserTag：// extends TagSupport接口

六、          registration部分

七、          logon部分

八、          logoff部分

九、          subscription部分