My first Spring MVC application, the first Spring MVC application

My first Spring MVC application, the first Spring MVC application

Product

Package com. mstf. bean; import java. io. serializable;/*** Product class, which encapsulates some information, including three attributes * @ author wangzheng **/public class Product implements Serializable {private static final long serialVersionUID = 1L; private String name; private String description; 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 *: When data verification fails, used to save and Display User input in the original form * @ author wangzheng */public class ProductForm {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 ;}}

InputProductController

Package com. mstf. controller; import javax. servlet. http. httpServletRequest; import javax. servlet. http. httpServletResponse; import org. apache. commons. logging. log; import org. apache. commons. logging. logFactory; import org. springframework. web. servlet. modelAndView; import org. springframework. web. servlet. mvc. controller; public class InputProductController implements Controller {private static final Log logger = LogFactory. getLog (InputProductController. class);/*** return a ModelAndView that contains a view without a model. forward all data directly */@ Overridepublic ModelAndView handleRequest (HttpServletRequest req, HttpServletResponse resp) throws Exception {logger.info ("handleRequest successful"); return new ModelAndView ("/WEB-INF/jsp/ProductForm. jsp ");}}

SaveProductController

Package com. mstf. controller; import javax. servlet. http. httpServletRequest; import javax. servlet. http. httpServletResponse; import org. apache. commons. logging. log; import org. apache. commons. logging. logFactory; import org. springframework. web. servlet. modelAndView; import org. springframework. web. servlet. mvc. controller; import com. mstf. bean. product; import com. mstf. bean. form. productForm; public class SaveProductController implements Controller {private static final Log logger = LogFactory. getLog (InputProductController. class); @ Overridepublic ModelAndView handleRequest (HttpServletRequest req, HttpServletResponse resp) throws Exception {req. setCharacterEncoding ("UTF-8"); // transcode resp. setCharacterEncoding ("UTF-8"); logger.info ("successfully entering SaveProductController"); // construct a ProductForm object ProductForm productForm = new ProductForm (); // write the form object productForm. setName (req. getParameter ("name"); productForm. setDescription (req. getParameter ("description"); productForm. setPrice (req. getParameter ("price"); // create model Product product = new Product (); product. setName (productForm. getName (); product. setDescription (productForm. getDescription (); try {product. setPrice (Float. parseFloat (productForm. getPrice ();} catch (Exception e) {e. printStackTrace ();} return new ModelAndView ("/WEB-INF/jsp/ProductDetails. jsp "," product ", product );}}

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> 
Springmvc-servlet.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation="http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd">           <bean name="/product_input.action" class="com.mstf.controller.InputProductController"/>    <bean name="/product_save.action" class="com.mstf.controller.SaveProductController"/></beans>
Web. 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>springmvc</servlet-name>        <servlet-class>            org.springframework.web.servlet.DispatcherServlet        </servlet-class>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>springmvc</servlet-name>        <url-pattern>*.action</url-pattern>    </servlet-mapping>  </web-app>