Spring MVC Pattern Example (decoupling controller not used)

Product

Package Com.mstf.bean;import java.io.serializable;/** * Product class, encapsulates some information, contains three properties * @author Wangzheng * */public class Prod UCT implements Serializable {private static final long Serialversionuid = 1l;private string Name;private string Descriptio n;private float price;public String getName () {return name;} public void SetName (String name) {this.name = name;} Public String GetDescription () {return description;} public void SetDescription (String description) {this.description = description;} public float GetPrice () {return price;} public void Setprice (float price) {this.price = Price;}}

Productform

Package com.mstf.bean.form;/** * Productform is a form class * function: Used to save and present user input in the original form * @author Wangzheng * */public class Prod when data validation fails Uctform {private string Name;private string Description;private string Price;public string GetName () {return name;} public void SetName (String name) {this.name = name;} Public String GetDescription () {return description;} public void SetDescription (String description) {this.description = description;} Public String GetPrice () {return price;} public void Setprice (String price) {this.price = Price;}}

Controllerservlet

Package Com.mstf.servlet;import Java.io.ioexception;import Javax.servlet.requestdispatcher;import Javax.servlet.servletexception;import Javax.servlet.http.httpservlet;import Javax.servlet.http.httpservletrequest;import Javax.servlet.http.httpservletresponse;import com.mstf.bean.Product Import Com.mstf.bean.form.productform;public class Controllerservlet extends HttpServlet {private static final long Serialversionuid = 1L; @Overridepublic void Doget (HttpServletRequest req, HttpServletResponse resp) throws Servletexception, IOException {process (req, resp);} @Overridepublic void DoPost (HttpServletRequest req, HttpServletResponse resp) throws Servletexception, IOException { Process (req, resp);} /** * This method is used to process all input requests * @param req * @param resp * @throws ioexception * @throws servletexception */private void Process (Ht Tpservletrequest Req,httpservletresponse resp) throws Ioexception,servletexception {req.setcharacterencoding ("UTF-8 "); transcoding resp.setcharacterencoding ("UTF-8"); String uri=req.getrequesTURI (); Get request Uriint Lastindex=uri.lastindexof ("/"); String action=uri.substring (lastindex+1); Gets the action name//execution method if (action.equals ("Product_input.action")) {//no found, no action} else if (Action.equals ("product_ Save.action ")) {//Build a Productform form object according to the request parameters Productform productform=new productform ();// Populates the Form Object Data Productform.setname (Req.getparameter ("name"));p roductform.setdescription (req.getparameter ("description "));p Roductform.setprice (" price ");//Create the product model (domain object) and set the corresponding property through the form object Product Product=new product ();p Roduct.setname (Productform.getname ());p roduct.setdescription (Productform.getdescription ()); try { Product.setprice (Float.parsefloat (Productform.getprice ()));} catch (Exception e) {e.printstacktrace ();} Put the product model into the HttpServletRequest object so that the corresponding attempt can access the Req.setattribute ("Product", product);} Forward to this view string dispatchurl=null;if (Action.equals ("Product_input.action")) {dispatchurl= "web-inf/jsp/ Productform.jsp ";} else if (action.equals ("Product_save.action")) {dispatchurl= "Web-inf/jsP/productdetails.jsp ";} if (dispatchurl!=null) {RequestDispatcher rd=req.getrequestdispatcher (dispatchurl); Rd.forward (req, resp);}}}

Xml

<?xml version= "1.0" encoding= "UTF-8"? ><web-app xmlns= "Http://java.sun.com/xml/ns/javaee"    xmlns:xsi= " Http://www.w3.org/2001/XMLSchema-instance "    xsi:schemalocation=" Http://java.sun.com/xml/ns/javaee/http Java.sun.com/xml/ns/javaee/web-app_3_0.xsd "    version=" 3.0 "> <servlet>    <servlet-name> Controllerservlet</servlet-name>    <servlet-class>com.mstf.servlet.controllerservlet</ Servlet-class></servlet><servlet-mapping>    <servlet-name>controllerservlet</ servlet-name>    <url-pattern>*.action</url-pattern></servlet-mapping>  </web-app >

productdetails.jsp

<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "    pageencoding=" UTF-8 "%><! DOCTYPE html>
productform.jsp
<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%><! DOCTYPE html>
　　
Spring MVC Pattern Example (decoupling controller not used)