springMVC入门配置

DispatcherServlet

web.xml

    <servlet>
        <servlet-name>springapp</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springapp</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>

springapp-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-2.5.xsd">

    <!--
        the application context definition for the springappDispatcherServlet
    -->
    <bean id="productManager" class="com.archie.service.SimpleProductManager">
        <property name="products">
            <list>
                <ref bean="product1"/>
                <ref bean="product2"/>
                <ref bean="product3"/>
            </list>
        </property>
    </bean>
    <bean id="product1" class="com.archie.domain.Product">
        <property name="description" value="Lamp"></property>
        <property name="price" value="5.75"></property>
    </bean>
    <bean id="product2" class="com.archie.domain.Product">
        <property name="description" value="Table"></property>
        <property name="price" value="75.25"></property>
    </bean>
    <bean id="product3" class="com.archie.domain.Product">
        <property name="description" value="Chair"></property>
        <property name="price" value="22.79"></property>
    </bean>
    
    <!-- 
    定义信息资源
    <fmt:message key="title"/>
    ......
     -->
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename" value="messages"></property>
    </bean>
    
    <bean name="/hello.htm" class="com.archie.web.HelloController" />
    <bean name="/product.htm" class="com.archie.web.InventoryController">
        <!-- productManager字段映射id为productManager的bean -->
        <property name="productManager" ref="productManager"></property>
    </bean>
    
    <!-- 视图解析器  -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>


</beans>

Product.java

package com.archie.domain;

import java.io.Serializable;

@SuppressWarnings("serial")
public class Product implements Serializable{

    private String description;
    private Double price;
    
    public String getDescription() {
        return description;
    }
    public void setDescription(String description) {
        this.description = description;
    }
    public Double getPrice() {
        return price;
    }
    public void setPrice(Double price) {
        this.price = price;
    }
    public String toString(){
        StringBuffer buffer=new StringBuffer();
        buffer.append("Description:"+description+";");
        buffer.append("Price:"+price);
        return buffer.toString();
    }

ProductManager.java

package com.archie.service;

import java.io.Serializable;
import java.util.List;

import com.archie.domain.Product;

public interface ProductManager extends Serializable{

    public void increasePrice(int percentage);
    public List<Product> getProducts();
}

package com.archie.service;

import java.util.List;

import com.archie.domain.Product;

public class SimpleProductManager implements ProductManager{

    private static final long serialVersionUID = 4970899362190001718L;

    private List<Product> products;
    public List<Product> getProducts() {
        return products;
    }
    public void increasePrice(int percentage) {
        if(products!=null){
            for(Product product:products){
                double newPrice=product.getPrice().doubleValue()*(100+percentage)/100;
                product.setPrice(newPrice);
            }
        }
    }
    public void setProducts(List<Product> products) {
        this.products = products;
    }

    
}

InventoryController.java

package com.archie.web;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

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.archie.service.ProductManager;

public class InventoryController implements Controller{

    protected final Log logger=LogFactory.getLog(getClass());
    private ProductManager productManager;
    
    public ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        String now=(new Date()).toString();
        logger.info("returning hello view with"+now);
        
        Map<String, Object> myModel=new HashMap<String, Object>();
        myModel.put("now", now);
        myModel.put("products", this.productManager.getProducts());
        return new ModelAndView("product","model",myModel);
    }

    public ProductManager getProductManager() {
        return productManager;
    }
    public void setProductManager(ProductManager productManager) {
        this.productManager = productManager;
    }
    
}