關於springmvc4.3.5的配置

第一步:下載spring下載鏈接：http://repo.springsource.org/libs-release-local/org/springframework/spring/

下載後的文檔裏面有相關api和講解

第二部:在eclipse裏面部署springmvc

首先目錄結構如下:

首先導入springmvc需要的jar包一共20個,外加日誌文件common-log.jar這是必要文件,另外列子需要jstl的兩個jar文件

lib文件夾下面如下

第三步:在web.xml配置springmvc

  <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>*.fruit</url-pattern>       <!-- 什麼樣的請求會被springmvc處理，不能是/*.fruit這是不對的 -->
    </servlet-mapping>

當然還有其他的配置方法，然而爸爸就覺得這一種舒服，這種配置方法會自動加載WEB-INF下的spring的springmvc-servlet.xml配置文件如果需要在其他路徑下配置springmvc-servlet的話方式如下：

  <servlet>
        <servlet-name>springmvc</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:/某某路徑(如：WEB-INF/classes)/自己指定的配置文件名稱.xml(如:***.xml)</param-value>  <!-- classpath:與classpath*:的區別是前者僅指我們所給出的當前目錄，而後者這包括當前目錄的子目錄 -->
        </init-param>
        <load-on-startup>1</load-on-startup>

    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>*.fruit</url-pattern>
    </servlet-mapping>

第四步:配置springmvc-servlet.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">
    <context:component-scan base-package="app03a"/><!-- 註解支持,添加要掃描的包 -->
    <bean name="/product_input.fruit" class="app03a.controller.InputProductController"></bean>  <!-- 自定義控制器 -->
    <bean name="/product_save.fruit" class="app03a.controller.SaveProductController"></bean>  <!-- 自定義控制器 -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.UrlBasedViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
    <property name="prefix" value="/WEB-INF/jsp/"/>
    <property name="suffix" value=".jsp"/>
</bean>   <!-- 視圖解析器 -->
    <!-- ... -->
</beans>

配置springmvc作者走過的坑，要注意添加掃描的包，你自己在那些類裏面添加了spring的註釋就要添加掃描其所在的包，視圖解析器就是來去掉一些前綴和後綴的。

這樣就基本上可以運行了，另外提醒新手們市面上的書大都不適合新版的spring，所以只能拿來參考，具體是要以spring官方說明爲準。spring說明在下載的壓縮包裏面，spring4.3.5\spring-framework-4.3.5.RELEASE\docs\spring-framework-reference\htmlsingle\index.html。要多多參考這個，裏面都能找到！

樓主再次放我的項目代碼

package app03a.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);

    @Override
    public ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        logger.info("InputProductController called");
        return new ModelAndView("ProductForm");
    }

}

package app03a.controller;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import app03a.domain.Product;
import app03a.form.ProductForm;


@Controller
@RequestMapping(path="/product")
public class ProductController {

    private static final Log logger = LogFactory.getLog(ProductController.class);

    @RequestMapping("/input")
    public String inputProduct() {
        logger.info("inputProduct called");
        return "ProductForm";
    }

    @RequestMapping("/save")
    public String saveProduct(ProductForm productForm, Model model) {
        logger.info("saveProduct called");
        // no need to create and instantiate a ProductForm
        // create Product
        Product product = new Product();
        product.setName(productForm.getName());
        product.setDescription(productForm.getDescription());
        try {
            product.setPrice(Float.parseFloat(
                    productForm.getPrice()));
        } catch (NumberFormatException e) {
        }

        // add product

        model.addAttribute("product", product);
        return "ProductDetails";
    }
}

package app03a.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 app03a.domain.Product;
import app03a.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);
    }

}

package app03a.domain;
import java.io.Serializable;

public class Product implements Serializable {
    private static final long serialVersionUID = 748392348L;
	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;
    }
}

ProductDetails.jsp

package app03a.form;

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;
    }
}

ProductForm.jsp:

<!DOCTYPE HTML>
<html>
<head>
<title>Save Product</title>
<style type="text/css">@import url(css/main.css);</style>
</head>
<body>
<div id="global">
    <h4>The product has been saved.</h4>
    <p>
        <h5>Details:</h5>
        Product Name: ${product.name}<br/>
        Description: ${product.description}<br/>
        Price: $${product.price}
    </p>
</div>
</body>
</html>

<!DOCTYPE HTML>
<html>
<head>
<title>Add Product Form</title>
<style type="text/css">@import url(css/main.css);</style>
</head>
<body>

<div id="global">
<form action="product_save.fruit" method="post">
    <fieldset>
        <legend>Add a product</legend>
            <p>
                <label for="name">Product Name: </label>
                <input type="text" id="name" name="name" 
                    tabindex="1">
            </p>
            <p>
                <label for="description">Description: </label>
                <input type="text" id="description" 
                    name="description" tabindex="2">
            </p>
            <p>
                <label for="price">Price: </label>
                <input type="text" id="price" name="price" 
                    tabindex="3">
            </p>
            <p id="buttons">
                <input id="reset" type="reset" tabindex="4">
                <input id="submit" type="submit" tabindex="5" 
                    value="Add Product">
            </p>
    </fieldset>
</form>
</div>
</body>
</html>