struts2攔截器 獲得請求方法名+獲得請求參數

struts2攔截器裏如何知道你請求的是那個方法
使用:invocation.getInvocationContext().getName(); //輸出Priv_queryPriv,這正是我訪問的Action中的方法。

 

1.struts.xml中這麼定義的

<struts>
    <!-- character filter -->
    <constant name="struts.i18n.encoding" value="utf-8" />
    <constant name="struts.multipart.saveDir" value="/tmp" />
    <constant name="struts.multipart.maxSize" value="1000000000" />
    <!-- CONFIG Global Exception -->

    <package name="basePriv" extends="struts-default">
        <interceptors>
            <interceptor name="myPrivInterceptor" class="PrivInterceptor"/>
            <interceptor-stack name="b2cplatPrivInterceptor">
                <interceptor-ref name="myPrivInterceptor">
                    <param name="includeMethods"></param>
                    <param name="excludeMethods">
                        loginMain,loginTop,loginSwitch,loginRight,login,leftMenuShow,
                        queryCityList,queryInOrOutAreaList,queryDistricts
                    </param>
                </interceptor-ref>
                <interceptor-ref name="defaultStack"/>
            </interceptor-stack>
        </interceptors>

        <default-interceptor-ref name="b2cplatPrivInterceptor"/>

        <global-results>
            <result name="privError">/errorPrivPage.jsp</result>
            <result name="updateEmpPassword">/jsp/phone/xxxx.jsp</result>
            <result name="loginPage" type="redirect">/jsp/phone/login/trunToLogin.jsp</result>
        </global-results>

        <global-exception-mappings>
            <exception-mapping result="error" exception="java.lang.Exception">/errorPage.jsp
            </exception-mapping>
        </global-exception-mappings>
    </package>


<package name="managerPlatform" extends="basePriv" namespace="/">
    <action name="*_*" class="{1}Action" method="{2}">
        <result name="success">${successPath}</result>
        <result name="error">${errorPath}</result>
        <result name="input">${inputPath}</result>
        <result name="redirectAction" type="redirectAction">${redirectActionPath}</result>
        <result name="doChain" type="chain">${chainPath}</result>
        <result name="redirect" type="redirect">${redirectPath}</result>
        <result name="print" type="stream">
            <param name="contentType">application/vnd.ms-excel</param>
            <param name="inputName">inputStream</param>
            <param name="contentDisposition">filename="${printFileName}"</param>
            <param name="bufferSize">1024</param>
        </result>
    </action>
</package>

</struts>

 2.Action這麼寫

/**
 * 權限信息控制
 * @author  ken
 * @date 2011-9-13 下午15:00:46
 */
@Scope("prototype")
@Controller("PrivAction")
public class PrivAction extends BaseAction{

    private static final long serialVersionUID = 1L;
    static final Logger log = Logger.getLogger(PrivAction.class);

    @Autowired
    private PrivService privService;

    /* 權限模型 */
    private TEmployeePriv employeePriv;

    /**
     * 權限查詢
     * @return
     */
    public String queryPriv(){
        if(employeePriv==null){
            employeePriv = new TEmployeePriv();
            successPath = "/jsp/phone/priv/priv/privList.jsp";
            return SUCCESS;
        }
        try {
            entitys = this.privService.queryAllPriv(employeePriv);
        } catch (Exception e) {
            log.error("",e);
        }

        successPath = "/jsp/phone/priv/priv/privList.jsp?flag=true";
        return SUCCESS;
    }
}

 3.struts2攔截器

 /**
  * 權限攔截器Interceptor
 * @author mengxianjun
 * @date 2011-4-8 下午03:07:24
 *
 */

@SuppressWarnings("serial")
@Component( "PrivInterceptor" )
@Scope("prototype")
public class PrivInterceptor extends MethodFilterInterceptor{

    @Resource(name = "EmployeeService")
    private EmployeeService empSafeService;//工號安全Service

    @Resource(name="EmployeeRoleService")
    private EmployeeRoleService empRoleService;

    /* (non-Javadoc)
     * @see com.opensymphony.xwork2.interceptor.MethodFilterInterceptor#doIntercept(com.opensymphony.xwork2.ActionInvocation)
     * @author mengxianjun
     * @date 2011-4-8 下午03:07:24
     */

    @SuppressWarnings("unchecked")
    @Override
    protected String doIntercept(ActionInvocation invocation) throws Exception {

        System.out.println("============"+invocation.getInvocationContext().getName());
        System.out.println("============"+invocation.getInvocationContext().getLocale());
        System.out.println("============"+invocation.getInvocationContext().getParameters());


        System.out.println("執行到攔截器裏。。。。");

        ActionContext act = invocation.getInvocationContext();

        //獲得session
        Map session = invocation.getInvocationContext().getSession();

        TEmployeeInfo sessionInfo = (TEmployeeInfo) session.get("user");

        String employee_id="";

        /**
         * 一、是否登錄
         */
        try
        {
            employee_id = sessionInfo.getEmployeeId();
        }
        catch( NullPointerException e )
        {
            act.put("message", "Session過期，請重新登錄！");
            return "loginPage";
        }

/*=========================================================單點登錄判斷============================================*/
        HashMap<String, String> map = (HashMap<String, String>)  ServletActionContext.getServletContext().getAttribute("userList");
        String sessionID_User = map.get( employee_id ); //登錄用戶session的ID
        String sessionID_Now = ServletActionContext.getRequest().getSession().getId(); //當前session的ID

        if( ! sessionID_User.trim().equals(sessionID_Now) )
        {
            act.put("message", "此賬號已登錄！");
            return "privError";
        }
/*=========================================================單點登錄判斷============================================*/

        /**
         * 二、登錄成功後，根據URL進行權限判斷
         */
        if( !"".equals(employee_id.trim()) && null!=employee_id )
        {
            /**
             * 2.1判斷工號登錄後，業務密碼是否爲123456，是跳轉到商戶安全設置，修改業務密碼
             */
            /*TEmployeeSafe empSafe = empSafeService.queryEmployeSafe(employee_id);
            if( null!=empSafe )
            {
                String MD5password = KeyedDigestMD5.getKeyedDigest("123456","").toUpperCase();//獲得123456的MD5值
                String employeePass = empSafe.getEmployeePass();//獲得登錄密碼
                String employeePass2 = empSafe.getEmployeePass2();//獲得工號業務密碼
                if( MD5password.equals(employeePass) || MD5password.equals(employeePass2) )
                {
                    act.put("message", "歡迎使用本系統，您的登錄密碼、業務密碼過於簡單，請修改！");
                    return "updateEmpPassword";
                }
            }*/


            /**
             * 2.2截取請求URL
             */
            HttpServletRequest request = ServletActionContext.getRequest();

            String currentURL = request.getRequestURI();
            String targetURL = "";

            if( -1 != currentURL.indexOf("?") )//普通<form>標籤是?分隔傳來的參數
            {
                String paramURL = currentURL.substring(currentURL.indexOf("?",0), currentURL.length());//參數URL

                int targetLength = currentURL.length() - paramURL.length();//去掉請求參數Length

                targetURL = currentURL.substring(currentURL.indexOf("/",1), targetLength);
                System.out.println("去掉請求參數路徑URL:"+targetURL);
            }
            else if( -1 != currentURL.indexOf(";") )//struts2標籤<s:form>標籤是;分隔傳來的參數
            {
                String paramURL = currentURL.substring(currentURL.indexOf(";",0), currentURL.length());//參數URL

                int targetLength = currentURL.length() - paramURL.length();//去掉請求參數Length

                targetURL = currentURL.substring(currentURL.indexOf("/",1), targetLength);
                System.out.println("去掉請求參數路徑URL:"+targetURL);
            }
            else
            {
                targetURL = currentURL.substring(currentURL.indexOf("/",1), currentURL.length());
                System.out.println("請求路徑URL:"+targetURL);
            }


            /**
             * 2.3必須保證當前用戶：1.工號必須開啓2.角色已分配  3.角色已啓用   4.角色有權限集合
             */
            if("12".equals(sessionInfo.getState()))
            {
                act.put("message", "工號已鎖定！");
                return "privError";
            }
            else if("15".equals(sessionInfo.getState()))
            {
                act.put("message", "工號已註銷！");
                return "privError";
            }
            else if( sessionInfo.getRoleState()==null || "".equals(sessionInfo.getRoleState()) )
            {
                act.put("message", "未分配角色！");
                return "privError";
            }
            else if( !"10".equals(sessionInfo.getRoleState()) )
            {
                act.put("message", "該角色未啓用！");
                return "privError";
            }
            else
            {
                try
                {
                    /*1.得到中間表TRolePriv集合*/
                    TRolePriv rp = new TRolePriv();
                    rp.setRoleNum(sessionInfo.getRoleNum());
                    List<TRolePriv> rolePrivList = empRoleService.queryRolePriv(rp);

                    /*2.根據中間表TRolePriv,生成TEmployeePriv集合*/
                    List<TEmployeePriv> privList = new ArrayList<TEmployeePriv>();
                    for( TRolePriv trp : rolePrivList )
                    {
                        TEmployeePriv myPriv = empRoleService.queryPrivById(trp.getPrivNum());
                        if(myPriv!=null&&myPriv.getPrivUrl()!=null&&!"".equals(myPriv.getPrivUrl())){
                            privList.add(myPriv);//去掉一級菜單添加進privList，privUrl爲空是一級菜單
                        }
                    }

                    /*3.權限privUrl與targetURL比較*/
                    if( privList.size()>0 )
                    {
                        int privState = 0;

                        for( TEmployeePriv p : privList )
                        {
                            /**
                             * 對比去掉請求參數後的URL是否一致，即/Login_login
                             */
                            String privUrl = p.getPrivUrl();//TEmployeePriv中privUrl,可能帶參數,可能不帶參數

                            if(-1!=privUrl.indexOf("?",0)){
                                String paramPrivURL = privUrl.substring(privUrl.indexOf("?",0), privUrl.length());//參數URL
                                int targetPrivLength = privUrl.length() - paramPrivURL.length();//去掉請求參數Length
                                privUrl = privUrl.substring(privUrl.indexOf("/",0), targetPrivLength);//TEmployeePriv中privUrl去掉參數
                            }

                            if( privUrl.equals(targetURL) )
                            {
                                privState = 1;
                            }
                        }
                        if( 1 == privState )
                        {
                            return invocation.invoke();
                        }
                        else
                        {
                            System.out.println("-------得到Priv權限集合，但是無訪問權限---------");
                            act.put("message", "您沒有權限  , 拒絕訪問！");
                            return "privError";
                        }
                    }
                    else
                    {
                        act.put("message", "您沒有相應權限 , 拒絕訪問！");
                        return "privError";
                    }
                }
                catch( NullPointerException e )
                {
                    act.put("message", "您沒有權限 , 拒絕訪問！");
                    return "privError";
                }
            }
        }
        else
        {
            act.put("message", "Session過期，請重新登錄！");
            return "loginPage";
        }
    }
}