ASP

Difference 1:URL changes in the browser during redirectionThe URL on the browser remains unchanged for forwarding.Difference 2:Redirection actually generates two requests.Only one request is forwarded.Redirection:Send a request --> run the server -->

  The following is a classic example      

1. Link A Single-host event Click events to hide yourself. 2. Application of the mask pop-up layer (this is a complete jsp code) String path = request. getContextPath (); String basePath = request. getScheme () + ": //" + request. getServerName ()

1, form get method to submit parameters garbled, because the default tomcat according to the iso-8859-1 for url encoding so the corresponding conversion:@ First, set the request Encoding Method on the acceptance parameter page or servlet, for

  JSP nine implicit objects Request Response Config Application Exception Session Page Out PageContext Out implicit object The out implicit object is used to send text data to the client. The out object is returned by calling the getOut method of

  File Download jsp code String path = application. getRealPath ("./images/a.jpg "); File file = new File (path ); InputStream is = new FileInputStream (file ); Response. setHeader ("content-disposition", "attachment; filename =" +

  1. Use of simple labels 1) use custom tags to control whether the page content (TAG body) is output   Public void doTag () throws JspException, IOException {   // JspFragment jf = this. getJspBody ();   // Jf. invoke (null );   // Equivalent to jf.

when the types in the tag are password and text, their default length and width are inconsistent, and the length and width of the types in the logon box are usually set to be consistent. The following methods can be used to make them consistent

JSP script ElementJsp declaration Syntax: The jsp declaration is only valid on the current page, and the jsp built-in object cannot be used in the jsp declaration. The variables or methods declared in it are instance methods or instance

The key to Chinese display is to identify at which stage the problem arises; When obtaining data submitted by a jsp form: Filter can be configured in web. xml (before struts filter must be configured) encodingFilter org. springframework. web.

In the network, changing the encoding from gb2312 to gbk does not take effect for a long time, including servelt, because it is garbled by default with the servlet itself in the database. Later, we changed the page encoding to gbk on the jsp page,

Recently, I used kindeditor4.1 to edit an article and found that an error occurred while uploading the flash file and media file. I cannot solve this problem. I found out that the struts framework encapsulates the request object by looking for a

Type 1: struts1.2 looping element. name indicates the result set. Reference tag library  [Java]$ {x. u_id} $ {x. u_name} $ {x. u_sex} modify Delete Type 2: struts2.0 looping element. Note: value is the result set. Reference the tag library

Introduce CKEditor to the page:1. 2. Add class = "ckeditor" to the "content" textarea tag" After the introduction, you can use CKEditor to edit the content of the text box, for example: , TextArea has become a visual editing areaAfter editing the

1. a Jsp page is a common text file consisting of HTML statements and embedded JAVa code. The JSP page file extension is. jsp. 2. Both jsp and Servlet can develop dynamic web resources, but the two are different. servlet is used as the Controller

Servlet Filter)Introduction to FilterFilter is also called a Filter. It is the most exciting technology in Servlet technology. WEB developers use the Filter technology to manage all web resources on web servers, such as Jsp, Servlet, static image

A moment of cheap, the structs-config.xml file in a paragraph deleted, the results are always reported error.Error message: Document is invalid: no grammar found[Html] "-// Apache Software Foundation // DTD Tiles Configuration 1.3 //

Function: automatically uploads the 02view.html file under the same directory in 5 seconds. 1) html implementationAdvantage: simpleDisadvantage: cannot be used in Struts Tiles 2) javascript implementationAdvantage: flexible, can be combined with

Summary of the process of passing JSP page parameters!Transfer Process: 1. if you click to connect to the Jsp page, the transfer process is xxx. action request --> action --> Jsp. You must use action before entering the jsp page. Therefore, the

When using the EL expression in JSP, You need to identify isELIgnored = "false". Otherwise, the EL expression is compiled as a normal string and the correct value is not displayed on the page. [Html] you can see this in the