spring mvc —— 简单的Spring MVC应用 3（2）

朴灿烈づ我的快乐病毒、 2022-06-02 04:54 193阅读 0赞

增加视图解析器

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web.xm

<?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.1" 
    		xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
        	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 
    			http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"> 
    	<servlet>
            <servlet-name>springmvc</servlet-name>
            <servlet-class>
                org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
    	    <init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>/WEB-INF/config/springmvc-config.xml</param-value>
    		</init-param>
            <load-on-startup>1</load-on-startup>    
    	</servlet>
    
        <servlet-mapping>
            <servlet-name>springmvc</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>

springmvc-config.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="/input-product" class="controller.InputProductController"/>
        <bean name="/save-product" class="controller.SaveProductController"/>
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
    </beans>

pom

<dependencies>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>javax.servlet-api</artifactId>
    			<version>3.1.0</version>
    			<scope>provided</scope>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>4.2.4.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>jstl</artifactId>
    			<version>1.2</version>
    			<scope>runtime</scope>
    		</dependency>
    	</dependencies>

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 domain.Product;
    import form.ProductForm;
    
    public class SaveProductController implements Controller {
    	
    	private static final Log logger = LogFactory.getLog(SaveProductController.class);
    	
    	@Override
    	public ModelAndView handleRequest(HttpServletRequest request,
    			HttpServletResponse response) throws Exception {
    		logger.info("SaveProductController called");
            ProductForm productForm = new ProductForm();
            // populate action properties
            productForm.setName(
                    request.getParameter("name"));
            productForm.setDescription(
                    request.getParameter("description"));
            productForm.setPrice(request.getParameter("price"));
    
            // create model
            Product product = new Product();
            product.setName(productForm.getName());
            product.setDescription(productForm.getDescription());
            try {
            	product.setPrice(Float.parseFloat(
            			productForm.getPrice()));
            } catch (NumberFormatException e) {
            }
    
            // insert code to save Product
    
            return new ModelAndView("ProductDetails", "product", product);
    	}
    
    }

![SouthEast 1][]

源码 ： [https://github.com/kaifengxu/spring-mvc-xuexizhinan/tree/master/chapter-03/sts/springmvc-intro2][https_github.com_kaifengxu_spring-mvc-xuexizhinan_tree_master_chapter-03_sts_springmvc-intro2]

[SouthEast]: /images/20220602/7c055b4a834b49d19054499d4fd852dd.png
[SouthEast 1]: /images/20220602/171d1110f84a45c58a7938ab63d28832.png
[https_github.com_kaifengxu_spring-mvc-xuexizhinan_tree_master_chapter-03_sts_springmvc-intro2]: https://github.com/kaifengxu/spring-mvc-xuexizhinan/tree/master/chapter-03/sts/springmvc-intro2