struts2拦截器 获得请求方法名+获得请求参数

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struts2拦截器里如何知道你请求的是那个方法
使用:invocation.getInvocationContext().getName(); //输出Priv_queryPriv,这正是我访问的Action中的方法。

 

1.struts.xml中这么定义的

<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这么写

/**
 * 权限信息控制
 * @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;
	
	/* 权限模型 */
	private TEmployeePriv employeePriv;
	
	/**
	 * 权限查询
	 * @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拦截器

 /**
  * 权限拦截器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;//工号安全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("执行到拦截器里。。。。");
		
		ActionContext act = invocation.getInvocationContext();
		
		//获得session
		Map session = invocation.getInvocationContext().getSession();
		
		TEmployeeInfo sessionInfo = (TEmployeeInfo) session.get("user");
		
		String employee_id="";
		
		/**
		 * 一、是否登录
		 */
		try
		{
			employee_id = sessionInfo.getEmployeeId();
		}
		catch( NullPointerException e )
		{
			act.put("message", "Session过期，请重新登录！");
			return "loginPage";
		}
		
/*=========================================================单点登录判断============================================*/
		HashMap<String, String> map = (HashMap<String, String>)  ServletActionContext.getServletContext().getAttribute("userList");
		String sessionID_User = map.get( employee_id ); //登录用户session的ID
		String sessionID_Now = ServletActionContext.getRequest().getSession().getId(); //当前session的ID
		
		if( ! sessionID_User.trim().equals(sessionID_Now) )
		{
			act.put("message", "此账号已登录！");
			return "privError";
		}
/*=========================================================单点登录判断============================================*/
		
		/**
		 * 二、登录成功后，根据URL进行权限判断
		 */
		if( !"".equals(employee_id.trim()) && null!=employee_id )
		{
			/**
			 * 2.1判断工号登录后，业务密码是否为123456，是跳转到商户安全设置，修改业务密码
			 */
			/*TEmployeeSafe empSafe = empSafeService.queryEmployeSafe(employee_id);
			if( null!=empSafe )
			{
				String MD5password = KeyedDigestMD5.getKeyedDigest("123456","").toUpperCase();//获得123456的MD5值
				String employeePass = empSafe.getEmployeePass();//获得登录密码
				String employeePass2 = empSafe.getEmployeePass2();//获得工号业务密码
				if( MD5password.equals(employeePass) || MD5password.equals(employeePass2) )
				{
					act.put("message", "欢迎使用本系统，您的登录密码、业务密码过于简单，请修改！");
					return "updateEmpPassword";
				}
			}*/
			
			
			/**
			 * 2.2截取请求URL
			 */
			HttpServletRequest request = ServletActionContext.getRequest();
			
			String currentURL = request.getRequestURI();
			String targetURL = "";
			
			if( -1 != currentURL.indexOf("?") )//普通<form>标签是?分隔传来的参数
			{
				String paramURL = currentURL.substring(currentURL.indexOf("?",0), currentURL.length());//参数URL
				
				int targetLength = currentURL.length() - paramURL.length();//去掉请求参数Length
				
				targetURL = currentURL.substring(currentURL.indexOf("/",1), targetLength);
				System.out.println("去掉请求参数路径URL:"+targetURL);
			}
			else if( -1 != currentURL.indexOf(";") )//struts2标签<s:form>标签是;分隔传来的参数
			{
				String paramURL = currentURL.substring(currentURL.indexOf(";",0), currentURL.length());//参数URL
				
				int targetLength = currentURL.length() - paramURL.length();//去掉请求参数Length
				
				targetURL = currentURL.substring(currentURL.indexOf("/",1), targetLength);
				System.out.println("去掉请求参数路径URL:"+targetURL);
			}
			else
			{
				targetURL = currentURL.substring(currentURL.indexOf("/",1), currentURL.length());
				System.out.println("请求路径URL:"+targetURL);
			}
			
			
			/**
			 * 2.3必须保证当前用户：1.工号必须开启2.角色已分配  3.角色已启用   4.角色有权限集合
			 */
			if("12".equals(sessionInfo.getState()))
			{
				act.put("message", "工号已锁定！");
				return "privError";
			}
			else if("15".equals(sessionInfo.getState()))
			{
				act.put("message", "工号已注销！");
				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", "该角色未启用！");
				return "privError";
			}
			else
			{
				try
				{
					/*1.得到中间表TRolePriv集合*/
					TRolePriv rp = new TRolePriv();
					rp.setRoleNum(sessionInfo.getRoleNum());
					List<TRolePriv> rolePrivList = empRoleService.queryRolePriv(rp);
					
					/*2.根据中间表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);//去掉一级菜单添加进privList，privUrl为空是一级菜单
						}
					}
					
					/*3.权限privUrl与targetURL比较*/
					if( privList.size()>0 )
					{
						int privState = 0;
						
						for( TEmployeePriv p : privList )
						{
							/**
							 * 对比去掉请求参数后的URL是否一致，即/Login_login
							 */
							String privUrl = p.getPrivUrl();//TEmployeePriv中privUrl,可能带参数,可能不带参数
							
							if(-1!=privUrl.indexOf("?",0)){
								String paramPrivURL = privUrl.substring(privUrl.indexOf("?",0), privUrl.length());//参数URL
								int targetPrivLength = privUrl.length() - paramPrivURL.length();//去掉请求参数Length
								privUrl = privUrl.substring(privUrl.indexOf("/",0), targetPrivLength);//TEmployeePriv中privUrl去掉参数
							}
							
							if( privUrl.equals(targetURL) )
							{
								privState = 1;
							}
						}
						if( 1 == privState )
						{
							return invocation.invoke();
						}
						else
						{
							System.out.println("-------得到Priv权限集合，但是无访问权限---------");
							act.put("message", "您没有权限  , 拒绝访问！");
							return "privError";
						}
					}
					else
					{
						act.put("message", "您没有相应权限 , 拒绝访问！");
						return "privError";
					}
				}
				catch( NullPointerException e )
				{
					act.put("message", "您没有权限 , 拒绝访问！");
					return "privError";
				}
			}
		}
		else
		{
			act.put("message", "Session过期，请重新登录！");
			return "loginPage";
		}
	}
}

 输出：

16:05:35,813 INFO  [STDOUT] ============Priv_queryPriv
16:05:35,813 INFO  [STDOUT] ============zh_CN
16:05:35,813 INFO  [STDOUT] ============{}
16:05:35,813 INFO  [STDOUT] 执行到拦截器里。。。。
16:05:35,813 INFO  [STDOUT] 请求路径URL:/Priv_queryPriv

 

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struts2 拦截拦截器怎么样获得action 后面的参数 例如 login.action? user.user_name='aaaaa'
我想获得到action 后面的参数再做判断，请问怎么样获得呢

问题补充：
我想在拦截器里面得到传入的user.user_name

最佳答案

先在拦截器intercept（）方法中获取parameters对象：
  Map paramMap = invocation.getInvocationContext().getParameters();
然后用parameters对象获取参数(是一个字符串数组)：
 String[] names = (String[]) paramMap.get("user.user_name");
 String username=names[0];