sample java web application

Part III: MVCD model In the previous section, two kinds of Web application models were introduced from the general principles, but how to understand and grasp the model, it is a very practical topic to apply different Web technology correctly to different function modules of Web program. The following is the actual pr

(). getResourceAsStream ("Db.properties"); Dbconfig.load (InputStream); } Catch(Exception e) {Throw NewExceptionininitializererror (e); }}//if the program that reads the resource file is not a Servlet, it can only be read by the class loader Public voidUpdate ()throwsIOException {System.out.println (Dbconfig.getproperty ("url"));}After such code is published, modifying the configuration file requires a restart of the application, which can be impr

default installation (port number: 8080, username: admin, password: null)Finally choose the installation, you can complete the Tomcat installation, after the installation is complete, the "Start-Programs-" menu will add appche Tomcat6.0 menu group.2.2 Testing TomcatOpen IE Browser, enter http://localhost:8080 or http://127.0.0.1:8080 in the address bar(both localhost:8080 and 127.0.0.1 represent the local browser, and 8080 is the port number of the default listener for Tomcat), which will open

running. Here the container container1 and mirror tomcat-1, my understanding is that the mirror is a template, Container1 is based on this template to create a real basin, the basin is running our tomcat. So we can create many container with the same image. Three. Deploy our app on Tomcat Next we want to deploy our application, the idea is to enter into the container1 inside, at this time can think of Container1 as a new machine, we just need to go t

("BM", BM);Msg[0]= "Success";return msg;} Ilogindao Public Log FindByID (java.lang.String ID); Logindao Public Log FindByID (java.lang.String ID){log. Debug ("Getting Log instance with ID:" + ID);Try{Log instance = (log) gethibernatetemplate (). Get ("Interdao.dao.Log",ID);return instance;} catch (RuntimeException re){log. Error ("Get Failed", re);throw re;}} Log

Java. lang. SecurityException: Filter of class org. apache. catalina. ssi. SSIFilter is privileged and cannot be loaded by this web application, privileged Error:1 java. lang. securityException: Filter of class org. apache. catalina. ssi. SSIFilter is privileged and cannot be loaded by this

=count/product.page_size; }Else{pages=count/product.page_size+1; } stringbuffer SB=NewStringBuffer (); //Building a paging bar by looping for(inti=1;i){ if(I==currpage) {//determines whether the current pageSb.append ("" "+i+" "");//Building a paging bar}Else{sb.append ("//Building a paging bar } sb.append (" "); } request.setattribute ("Bar", sb.tostring ());; Request.getrequestdispatcher ("Product_list.jsp"). Forward (request, response); } } Tip: The paging bar is dynamic

Create a new cors filter file,Package Cn.ac.iscas.pebble.ufe.tools;import Java.io.ioexception;import Javax.servlet.filter;import Javax.servlet.filterchain;import Javax.servlet.filterconfig;import Javax.servlet.servletexception;import Javax.servlet.servletrequest;import Javax.servlet.servletresponse;import Javax.servlet.http.HttpServletResponse; Import org.springframework.stereotype.Component; @Componentpublic class Simplecorsfilter implements Filter {public voi D DoFilter (servletrequest req, se

Mailsendmanager (); Mainsendmanager.waitingmailremind (); } } 4. In the Contextinitialized method of listening for Servelet, write a timer, and let it schedule method to perform the Mailsendtask task described above.[HTML]View PlainCopy When the listener starts executing, set a time Timer timer = new timer (); System.out.println ("-------MailSend timer begins execution--------------"); Mailsendtask msendtask = new Mailsendtask (); Timer.schedule

Java Web application in Linux (i)Install Apache Jserv 1.1.2 under RedhatAlthough the Apache Jserv development team is now engaged in Tomcat development, and the Apache Jserv only supports the Servlet 2.0 standard and additional software (GNUJSP) is required to support JSP, Apache Jserv is more stable than Tomcat at this stage, so now Apache jserv+gnujsp is more s

); HttpURLConnection conn2=(HttpURLConnection) urldown.openconnection (); Conn2.setdoinput (true); Conn2.connect (); //Get input streamInputStream in=Conn2.getinputstream (); //Create a folder to place download appsFile dir=NewFile ("D:\\downapp"); if(!dir.exists ()) Dir.mkdir (); //Create a downloaded app, file name and storage pathFile appdown=NewFile (Dir,downname.split ("\" ") [1]); if(!appdown.exists ()) appdown.createnewfile (); //Get output streamFileOutputStream out=NewFil

forwarding processing class for struts to be managed by spring, which is managed as a bean.2 When we use spring directly, we call *applicationcontext, but we are now in the Web case, we can't call it manually. In fact, Spring provides a method to invoke in the Web, there is a servlet (which I used, I'm not sure how to use), a listener,servlet is for the application