apache struts 2

= prepare.findactionmapping (Request, Response,true); if(Mapping = =NULL) { Booleanhandled =execute.executestaticresourcerequest (request, response); if(!handled) {Chain.dofilter (request, response); } } Else{execute.executeaction (request, response, mapping); } } } finally{prepare.cleanuprequest (request); } }View Code6. Querying the configuration file7. Create the actioninvocation, which has the following relationship to

-INF/struts-config.xml debug 2 detail 2 2 action *.do 3. Create your own ActionForm in the project Create your own ActionForm in the project and inherit the ActionFor

To upload files, we must set the form method to POST and set entype to multipart/form-data, the browser sends the binary data of the selected file to the server. Once the enctype is set to multipart/form-data, the browser uses a binary stream to process form data. However, Struts 2 does not provide its own request parser. That is to say, Struts

A label file is one of the JSP custom tags that is implemented by creating a. tag file, such as Table.tag, in the Web-inf\tags directory or subdirectory, and using the Taglib directive to refer to the directory in which the. tag file resides, as follows: If you use the Struts 2 tag in a tag file, you can create a problem. Let's look at an example. Create a Table.tag file in the Web-inf\tags directory wi

before you learn Struts2, let's look at what is Struts2: Struts2 is a Web application framework based on the MVC design pattern, which essentially corresponds to a servlet, in the MVC design pattern, Struts2 as a controller to establish the data interaction between the model and the view. Struts 2 is the next generation of struts and is the new

a page instance for adding and deleting materials. The call process is as follows. Jsp request page Dispatch action Package COM. bjpowernode. DRP. web. actions; import Java. io. fileoutputstream; import Java. util. list; import javax. servlet. HTTP. httpservletrequest; import javax. servlet. HTTP. httpservletresponse; import Org. apache. commons. beanutils. beanutils; import Org.

All MVC frameworks must be parsed. HTTP request parameters, and pass the request parameters to the Controller component. Because HTTP request parameters are all string types, but JAVA is a strongly-typed language ., Therefore, MVC the framework must convert these string parameters to the corresponding data type. Struts 2Provides a very powerful type conversion mechanism.Struts 2Type conversion can be based onOnglExpression, as longH

Most of the time, we use struts 2The built-in type converter can meet most of the type conversion requirements. However, in some special cases, if you want to convert a string into a composite object, you need to use a custom type converter. To implement a custom type converter, you must follow these two steps: 1, Write your own type converter 2, Registered type converter 1. Custom type converter

Servletap parsing: API (Application Programming Interface) application programming interface.Servletapi is a set of interfaces and classes related to Servlets.To enable access to Servletapi objects, Struts 2 offers a number of ways, but it comes down to two broad categories:1. How to access the SERVLETAPI decoupling2. Access mode coupled to the SERVLETAPIThe decoupling method is described below:1. Use the A

Apache Shale recently upgraded to become the Apache level project. The Apache Shale will also release the stable release version recently. Shale was launched by Craig McClanahan, founder of Struts and a member of the JSF experts Group. Shale reuses a large number of struts