Coding and Path Problems in Java Web

 

Coding problems in Java Web: 1. the following method is generally used to obtain the passed Chinese characters when passing values through get: string name = new string (request. getparameter ("name "). getbytes ("ISO-8859-1"), "UTF-8 "); in this way, the original Chinese characters can be obtained after the uploaded values are encoded twice. Another simple method is in Tomcat/config/server. xml configuration: <connetor Port = "8080" protocol = "HTTP/1.1" connectortimeout = "2000" uriencoding = "UTF-8"> 2. the first method can also be used to solve the value passed by post, but there is also a simple method: In reqeust. setcharacterencoding ("UTF-8"); Path Problems in Java Web: 1. web. the path in XML is in the web. when configuring the URL-pattern path in XML, you must add/in front of it, and this/is relative to context-path, that is, the path of/index: http: // localhost: 8080/nyist/index2. path in the foreground HTML is in the path representation in HTML./indicates the service root path. You can also use the relative path in HTML, it is necessary to perform relative positioning based on all the URL paths of the current HTML page (whether it is the <A> link or the action in form is the same as 0) 3. the path in the servlet is accessed relative to context-path. you can locate the target Servlet Path Based on the URL path of the current serlvlet. for the request. getrequestdispatcher (".. /.. /admin/art/Index "). forward (request, response); The problem can also be located based on the utrl relative path. Note: For resonse. for sendredirect ();, It is the browser's redirection, where/is relative to the server root, while forward is relative to context-Path