;Methodmethod=handlerMethod.getMethod();AccessRequiredannotation=method.getAnnotation(AccessRequired.class);if(annotation!=null){System.out.println("你遇到了:@AccessRequired");StringaccessToken=request.getParameter("access_token");/***Dosomething*/response.getWriter().write("没有通过拦截,accessToken的值为:"+accessToken);}//没有注解通过拦截returntrue;}}
In the spring MVC configuration file:?
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mvc:interceptors>mvc:interceptor>mvc:mappingpath="/**"/>refbean="userAccessInterceptor
This.handledata (event);//Specific processing request returns data return of (event); }), Catcherror ((err:httperrorresponse) = This.handledata (Err)) }In common our business often return 200, but there may be business errors, such as the wrong parameters of the request, the session expires without validation, etc., this time we need to do a unified processingPrivate Handledata ( event:httpresponseHere we have the same unified processing of the differen
Spring MVC interceptor and springmvc blocker
Spring provides us:
Org. springframework. web. servlet.HandlerInterceptorInterface,
Org. springframework. web. servlet. handler.HandlerInterceptorAdapterAdapter,
You can easily implement your own interceptor by implementing this interface or inheriting this class.
For example:
public class HelloWorldInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request,
Problem:Set the picture can not be greater than 5M, but upload more than 2M image directly error jump input;Workaround:1.struts.multipart.maxsize controls the maximum size of files uploaded throughout the project. More than this size, background error, the program can not handle such a large file. Fielderror inside will have the following hints:The request was rejected because its size (16272982) exceeds the configured maximum (9000000)The MaximumSize property of the 2.fileUpload interceptor mus
a window, but it is in the Onckick event after the execution, only to play out, such as the use of $. JSON, click to get the data, then jump to the new page, then it will be blocked by the browser, we can use the following method to avoid, is to first open a window with window.open, and then modify the window address.As in $. JSON before defining the variable opens a window with the following code:
var tempwindow=window. Open();
And then to $. The address returned by JSON us
Introduction: This is php.net news interception of the detailed page, introduced and PHP, related knowledge, skills, experience, and some PHP source code and so on.
class= ' pingjiaf ' frameborder= ' 0 ' src= ' http://biancheng.dnbcw.info/pingjia.php?id=323420 ' scrolling= ' no ' >
Please modify the following variables yourself.
$newsnum = 7;
$space = 20;
$width = 400;
$headclass = "CLASS5";
$lowerclass = "CLASS6";
The variable is set to end.
Print "
";
$opened = $QUERY _string;
if ($open
This is an interceptor code for a login to intercept.I wrote the action into a configuration file, and by comparing the actionname to achieve the interception functionPackage Com.shop.web.intercept;import Java.util.arraylist;import Java.util.list;import java.util.ResourceBundle; Import Com.opensymphony.xwork2.action;import Com.opensymphony.xwork2.actioncontext;import Com.opensymphony.xwork2.actioninvocation;import Com.opensymphony.xwork2.actionsupport;import Com.opensymphony.xwork2.interceptor.a
, HttpServletResponse httpservletresponse, Object o, Modelandview modelandview) Throws Exception {System.out.println ("Posthandle is called \ n"); }//is called after the end of the request, that is, after Dispatcherservlet renders the corresponding view (primarily for resource cleanup) @Override public void Aftercompletion (Httpserv Letrequest HttpServletRequest, HttpServletResponse httpservletresponse, Object o, Exception e) throws Exception {S Ystem.out.println ("aftercompletion is called \
annotation interceptor is implemented to add an annotation to the required interception method @accessrequired Examples of usages in the Spring MVC controller /** * Annotation Blocker method * @return */@RequestMapping (value= "/urlinter", Method=requestmethod.get) @AccessRequiredpublic @ Responsebody String urlinterceptortest () {return "via Interceptor: User" +request.getattribute ("Curruser");} How to implement the above example? Define an annotat
Example one: Implementing Notification bar ManagementWhen notifications are made multiple times for the same type of event, as a developer, you should avoid using new notifications, and you should consider updating some of the values in the notification bar before you can alert the user. For example, the SMS system of our mobile phone, when new news comes, our notificat
I followed the Spring Learning Note (--AOP) to return notification before
/**
* Return Notification: The method is called after normal execution and, if there is an exception, the return value
of the * can access to the method is not invoked *
@param joinpoint
* @param result method
*
/@AfterReturning (value= "Execution (* com.zj.asceptj.*.* (..))", returning=
Android Notification usage (Lock Notification bar), android Notification bar
Recently, I have been researching android and using it. In this case, the program Notification must be resident in the Notification bar and cannot be cleared (just like android QQ. After research
Android custom Notification layout Notification, click the Notification navigation to switch back to the original Activity, android custom Layout
A Simple Application Scenario: if the user opens the Activity and presses the Home key, the Activity enters-> onPause ()-> onStop () invisible. The code sends a Notification
Notification is a message that is displayed outside of your app's general interface. When the app sends a message to the system, the message is first displayed as a chart in the notification bar. To view the details of the message, you need to go to the notification drawer (notificationdrawer). (notificationdrawer) are system-level controlled and you can view the
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