jsp vs servlet

) {This.begin = begin;This.end = end;}}private string GetFileName (string reqbody) {String filename = reqbody.substring (reqbody.indexof ("filename = \" ") + 10);filename = filename.substring (0, Filename.indexof ("\ n"));filename = filename.substring (filename.lastindexof ("\ \") + 1, filename.indexof ("\" "));return filename;}private void WriteTo (String filename, byte[] body, Position p) throws FileNotFoundException, ioexception{FileOutputStream FileOutputStream = new FileOutputStream ("c:/wo

Difference between Servlet and JSP: difference between ServletJSP1. Basic Concepts 1.1 Servlet Servlet is a server-side Java application that has the characteristics of being independent from the platform and protocol and can generate dynamic Web pages. It serves as the intermediate layer between customer requests (Web

The servlet places the object in the request, and then the JSP directly takes the value from the request.As in a servlet: (abbreviated)public void Doget (Request,response) {UserInfo user=new UserInfo ();After a series of processing to the user property assignment operationRequest.setattribute ("user", user);Cannot use Response.sendredirect ();Request.getrequestdi

with the property name heresourcedebugextensionproperty. The structure of this property is as follows, first2byte represents the index value of the name, followed by a4bytes represent the length of the property, and the last array represents the property value. Write in FormatclassfileJVMcan be identified. Sourcedebugextension_attribute {U2 Attribute_name_index;U4 Attribute_length;U1 Debug_extension[attribute_length];}The JSR45 Standard solves the problem of mapping between

1 Servlet A servlet is a server-side Java application that has platform-and protocol-independent features that can generate dynamic Web pages. It serves as the middle tier of a customer request (a Web browser or other HTTP client program) and a server response (a database or application on an HTTP server). A servlet is a Java application located on the s

are saved to a file or other media, they are UTF. This conversion process is accomplished by writeUTF and readUTF. Well, the basics of the discussion is about to come to the bottom of the topic. Think of this problem first as a black box. Look at the first level of the black box: Input (Charseta)->process (Unicode)->output (CHARSETB) Simply, this is an IPO model, that is, input, processing, and output. The same content goes through the transformation of "from Charseta to Unicode to Ch

absolute: When a string is running in memory, it is represented as Unicode code. When it is saved to a file or other media, UTF is used. This conversion process is completed by writeutf and readutf. Well, the basic discussion is almost done. Let's start with the topic below. Think of this problem as a black box first. First look at the first-level representation of the black box: Input (charseta)-> process (UNICODE)-> output (charsetb) Simple: This is an IPO model, that is, input, proces

, mainly for three different objects. 1) What the user knows is a public URL name. The user sees the URL of a servlet in HTML, but does not know how the servlet name maps to the directory and file on the server. This URL name is just a virtual name for your convenience.2) for deployment personnel, they can create a name that is only known to themselves and others in the actual operating environment. Similar

' indicates the value corresponding to the name. If the cookie name does not exist, then a new cookie is created, and if it exists, the value corresponding to the cookie name is modified. If you want to create a cookie multiple times, use this method again.3.JSP Cookie in Chinese garbled solutionWe may have garbled characters when we use cookies.This is a workaround found on the Web:Save cookiesString value = Java.net.URLEncoder.encode ("You need to

the second-level representation: Sourcefile (JSP, Java)-> class-> output In this figure, we can see that the input is the JSP and Java source files. During the processing, the class file is used as the carrier and then output. Further refined to three levels: JSP-> Temp File-> class-> browser, OS console, DB APP, serv