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Input Check of Struts 2 In the actual development of our project, there are two kinds of data validation: front-end validation and server validation. Client-side verification: js script is written mainly through jsp. Its advantage is obvious. It reminds the server in time if the input error is wrong, which can lighten the burden of the server. ...

The last article introduced how to use Action for parameter reception and simple form validation. This article introduces three ways of accessing web elements (request, session, application), template inclusion and default action. Let me first look at how Action accesses web elements: 1. Map-based data transfer: IOC (control inversion); 2. Map- ...

Interceptor is one of the strongest features of Struts 2, or the core of Struts 2. Interceptor allows you to do some processing before or after the action and result are executed. At the same time, interceptors also allow you to modularize common code as reusable classes. Many of the features in Struts 2 are accomplished by interceptors. Interc ...

In JSP, the scope of server-side data storage is usually request, session and application, and their corresponding Servlet API s are HttpServlet Rquerst, HttpSession and ServletContext, respectively. These scopes also need to be accessed in the controller of Struts2. Struts2 provides an ActionContext class, which is called the Action Context or ...

1. Custom mvc framework Write a mystruts framework Mvc mode: Model Model View tries to Control the controller Control, ControllerServlet acts as a controller!Getting request data encapsulation [BeanUtils can be optimized, (call method? ]Call Service to process business logic.Skip (Forwarding/Redirecting) [Skip Code Write Death] Summary of ...

For example, there are multiple requests in index.jsp <a href="<%=path %>/usersAction!add.action">add</a><br> <a href="<%=path %>/usersAction!show.action">show</a><br> <a href="<%=path %>/usersAction!update.action">update</a><br> <a href="<%=path %> ...

Let's first look at the configuration file of the project in the previous blog: There are two packages in this file, or two modules. When a project is relatively large, there may be dozens or even hundreds of modules in it. If they all write struts.xml files like this, then struts.xml will inevitably be very confused. Struts 2 provides a mod ...

Effect demonstration: 1. html section <div class="input_part" type="text"> <div class="icon_search"></div> <input type="text" name="input_text" id="input_text"> <button id="search_btn">search</button> <div class="openImg"></div> </div> <div class="image_part js_hid ...

1. About using struts2 to report java.lang.NoSuchFieldException: resourceEntries in the project. When we use Tomcat version 7.0.64 and below, there will be no problem. When we use tomcat 7.0.65, we will report this question. Many of the answers we see online are about tomcat 8 and so on. The actual problems began at tomcat 7.0.65. The root ...

Now use Spring 4 to integrate Struts 2 and Hibernate 4. Struts 2.3.16, Spring 4.0.6, Hibernate 4.3.5 integrate the required jar packages: The jar package required for Struts 2.3.6: Spring 4.0.6 requires jar packages: The jar package required for Hibernate 4.3.5: The MySQL database is installed locally, and MySQL driver package is add ...