struts2拦截器 取得请求方法名+获得请求参数

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。

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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" 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="*_*" 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);@Autowiredprivate 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")@Overrideprotected 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sessionMap 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IDString sessionID_Now = ServletActionContext.getRequest().getSession().getId(); //当前session的IDif( ! 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URLint targetLength = currentURL.length() - paramURL.length();//去掉请求参数LengthtargetURL = 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URLint targetLength = currentURL.length() - paramURL.length();//去掉请求参数LengthtargetURL = 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URLint targetPrivLength = privUrl.length() - paramPrivURL.length();//去掉请求参数LengthprivUrl = 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_queryPriv16:05:35,813 INFO  [STDOUT] ============zh_CN16:05:35,813 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];

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