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struts标签实现图片上传

Struts JSP Apache Dojo SUN

（1）jsp代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ page language="java" pageEncoding="utf-8" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix= "fmt" uri= "http://java.sun.com/jstl/fmt"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"%>
<%@ taglib prefix="sd" uri="/struts-dojo-tags"%>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>发布产品信息</title>
<link rel="stylesheet" type="text/css" href="../style/main.css"/>
<s:head theme="xhtml"/>
<sd:head parseContent="true" extraLocales="utf-8" />
</head>
<script type="text/javascript">
</script>

<body>

<s:form action="addProduct" method="post" theme="simple" enctype="multipart/form-data">
<div class="mainbox" style=" height : 848px;">
<div class="morearea">
        <a href="<%=request.getContextPath()%>/product/addProduct.action">发布产品信息</a>
    </div>
    <h1>发布产品信息</h1>
    <table border="0" cellspacing="0" cellpadding="0" class="table" bordercolor="#ccc">
<tr>
    <td width="20%" align="center" bgcolor="#F6F6F6">名称</td>
<td width="80%">
    <s:textfield id="cfProduct.proTitle" name="cfProduct.proTitle" size="50"></s:textfield>
    </td>
</tr>
<tr>
    <td width="20%" align="center" bgcolor="#F6F6F6">型号</td>
<td width="80%">
    <s:textfield id="cfProduct.proModel" name="cfProduct.proModel" size="50"></s:textfield>
    </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">规格</td>
    <td>
    <s:textfield id="cfProduct.proSpec" name="cfProduct.proSpec" size="50"></s:textfield>
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">品牌</td>
    <td>
    <s:textfield id="cfProduct.proTrademark" name="cfProduct.proTrademark" size="50"></s:textfield>
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">材质</td>
    <td>
    <s:textfield id="cfProduct.proMaterial" name="cfProduct.proMaterial" size="50"></s:textfield>
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">产地</td>
    <td>
    <s:textfield id="cfProduct.proOrigin" name="cfProduct.proOrigin" size="40"></s:textfield>
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">类别</td>
    <td>
    <s:select
    headerKey="noSelectClass"
    headerValue="--请选择类型--"
    name="cfProduct.proClassId"
    list="productclassList"
    id="cfProduct.proClassId"
    listKey="psId" listValue="psName"
    key="cfProduct.proClassId"
    />
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">图片</td>
    <td>
    <s:textfield name ="caption" label ="图片名称" />
    <s:label value="图片名称"></s:label>
    <s:file name ="myFile" label ="浏览"/>
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">导读</td>
            <td>
            <s:textarea id="cfProduct.proNaviContent" name="cfProduct.proNaviContent" cols="80" rows="5"></s:textarea>
                <font color="#ff0000">*</font>
            </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">内容</td>
            <td>
            <s:textarea id="cfProduct.proContent" name="cfProduct.proContent" cols="80" rows="5"></s:textarea>
            </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">有效期</td>
    <td>
    开始时间: <sd:datetimepicker language="utf-8" name="cfProduct.proBeginTime" value="today" displayFormat="yyyy-MM-dd"></sd:datetimepicker>      
    结束时间: <sd:datetimepicker language="utf-8" name="cfProduct.proEndTime" value="today" displayFormat="yyyy-MM-dd"></sd:datetimepicker>
   </td>
</tr>
<tr>
    <td align="center" bgcolor="#F6F6F6">价格</td>
    <td>
    <s:textfield id="cfProduct.proPrice" name="cfProduct.proPrice" size="20"></s:textfield>
   </td>
</tr>
</table>

     <p class="tc"><s:submit id="confirmButton" type="submit" action="addProduct" value="发布产品"></s:submit></p>
</div>
</s:form>
</body>
</html>

（2）struts配置文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<package name="product" extends="struts-default">
<action name="toAddProduct" class="productAction" method="toAddProduct">
<result>/product/product_add.jsp</result>
</action>

<action name="addProduct" class="productAction" method="addProduct">
   
<result name="success" type="redirect">product/productList.action</result>
<result name="input">/product/product_add.jsp</result>
</action>

<action name="productList" class="productAction" method="listProducts">
<result>/product/product_list.jsp</result>
</action>

<action name="toUpdateProduct" class="productAction" method="toUpdateProduct">
<result name="success">/product/product_updata.jsp</result>
</action>

<action name="updateProduct" class="productAction" method="updateProduct">

<result name="success" type="redirect">product/productList.action</result>
<result name="input">/product/product_updata.jsp</result>
</action>

<action name="startProduct" class="productAction" method="startProduct">
<result name="success" type="redirect">product/productList.action</result>
<result name="input">/product/product_list.jsp</result>
</action>

<action name="stopProduct" class="productAction" method="stopProduct">
<result name="success" type="redirect">product/productList.action</result>
<result name="input">/product/product_list.jsp</result>
</action>

<action name="toAppointPage" class="productAction" method="toAppointPage">
<result name="success">/product/product_list.jsp</result>
</action>

<action name="deleteProduct" class="productAction" method="deleteProduct">
<result name="success" type="redirect">product/productList.action</result>
<result name="input">/product/product_list.jsp</result>
</action>

</package>
</struts>

（3）Action类

/**
* <p>ProductAction</p>
*
* 版权 (c) 2009
*
* <p>CFSW</p>
*
* 文件历史
* 日期                  作者             描述
* 2009-10-09        xiangcheng.yue      创建
*
*/
package product.action;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.List;

import org.apache.struts2.ServletActionContext;

import product.beans.CfProduct;
import product.beans.CfProductclass;
import product.service.ProductService;
import util.IdGenerator;

import com.opensymphony.xwork2.ActionSupport;
import common.beans.Page;
import common.util.ConstantUtil;
import common.util.PageUtil;

/**
* 产品的查看，发布，修改，删除的Action.
*
* @author xiangcheng.yue
* @version 1.0
*/
public class ProductAction extends ActionSupport {

private static final long serialVersionUID = 1L;

private static final int BUFFER_SIZE = 160 * 1024;
/** 产品Service。*/
private ProductService productService;
/** 产品对象。*/
private CfProduct cfProduct;
/** 企业对象。 */
//private CfCorporation cfCorporation;
/** 产品对象List。*/
private List<CfProduct> cfProducts;
/** 产品Id。*/
private String proId;
/** 产品修改页面是否修改产品图片标志，"0"表示没有修改，"1"表示修改。 */
private String updatePicFlag = "0";
/** 产品发布及修改页面是否修改企业信息的标志，"0"表示没有修改，"1"表示修改。 */
//private String updateCorporationFlag = "0";
/** 产品类型List。 */
private List<CfProductclass> productclassList;
/** 图片对象，为实现产品图片的上传及显示。 */
//private Picture pic = new Picture();
/** 分页对象，为实现产品List的分页。 */
private Page page = new Page();
/** 跳转页面。 */
private int goPage;
/** 为实现产品图片的上传及显示。 */
private File myFile;
    private String contentType;
    private String fileName;
    private String imageFileName;
    private String caption;


private static void copy(File src, File dst) {
        try {
           InputStream in = null ;
           OutputStream out = null ;
            try {
               in = new BufferedInputStream( new FileInputStream(src), BUFFER_SIZE);
               out = new BufferedOutputStream( new FileOutputStream(dst), BUFFER_SIZE);
                byte [] buffer = new byte [BUFFER_SIZE];
                while (in.read(buffer) > 0 ) {
                   out.write(buffer);
               }
            } finally {
                if ( null != in) {
                   in.close();
               }
                 if ( null != out) {
                   out.close();
               }
           }
        } catch (Exception e) {
           e.printStackTrace();
       }
   }

public String getExtention(String fileName) {
        int pos = fileName.lastIndexOf(".");
        return fileName.substring(pos);
   }

    /**
     * @since 2009-10-09
     * 初始化产品List页面，并按照条件对List进行分页显示。
     * @return String SUCCESS 显示产品List页面
     */
public String listProducts() {
cfProducts = productService.findAll();
page.setEveryPage(ConstantUtil.EVERYPAGE_SIZE);
page = PageUtil.createPage(page,cfProducts.size());
goPage = 1;
cfProducts = productService.getListByPage(CfProduct.class,page);
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 确定要发布产品信息后，对新发布的产品的进行保存。
     * @return String SUCCESS 返回产品List页面
     */
public String toAddProduct() {
cfProduct = new CfProduct();
productclassList = productService.findSortOfCfProductsort();
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 确定要发布产品信息后，对新发布的产品的进行保存。
     * @return String SUCCESS 返回产品List页面
     */
public String addProduct() {
cfProduct.setProId(IdGenerator.createId());
cfProduct.setProCreatTime(new Date());
imageFileName = new Date().getTime() + getExtention(fileName);
String picURl = ServletActionContext.getServletContext().getRealPath( "/uploadimages" ) + "\\" + imageFileName;
        File imageFile = new File(ServletActionContext.getServletContext().getRealPath( "/uploadimages" ) + "/" + imageFileName);
        copy(myFile, imageFile);
cfProduct.setProPicUrl(picURl);
productService.saveProduct(cfProduct);
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 确定要修改产品信息后，初始化要修改的产品对象。
     * @return String SUCCESS 跳转到产品修改页面
     */
@SuppressWarnings("unchecked")
public String toUpdateProduct() {
cfProduct = productService.findById(this.getProId());
productclassList = productService.findSortOfCfProductsort();
//cfCorporation = productService.findCfCorporationById(cfProduct.getProCorId());
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 修改产品信息后，对修改了的产品的信息进行保存。
     * @return String SUCCESS 跳转到产品List页面，并对该页面进行刷新。
     */
public String updateProduct() {
if("0" == updatePicFlag){
productService.saveProduct(cfProduct);
return SUCCESS;
}
productService.updateProduct(cfProduct);
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 确定启用产品时，对产品的是否停用标志位进行修改。
     * @return String SUCCESS 刷新List页面。
     */
public String startProduct() {
cfProduct = productService.findById(this.getProId());
cfProduct.setProIsLock(1);
productService.updateProduct(cfProduct);
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 确定停用产品时，对产品的是否停用标志位进行修改。
     * @return String SUCCESS 刷新List页面。
     */
public String stopProduct() {
cfProduct = productService.findById(this.getProId());
cfProduct.setProIsLock(0);
productService.updateProduct(cfProduct);
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 点击分页标签时到确定页。
     * @return String SUCCESS 指定确定页的数据，并刷新List页面。
     */
public String toAppointPage(){
page.setCurrentPage(this.goPage);
page = PageUtil.createPage(page);
cfProducts = productService.getListByPage(CfProduct.class,page);
return SUCCESS;
}

/**
     * @since 2009-10-09
     * 点击产品List页面，删除链接。
     * @return String SUCCESS 把要删除的数据删除标志位设为1，并刷新List页面。
     */
public String deleteProduct(){
productService.deleteProduct(this.getProId());
return SUCCESS;
}

public void setCfProduct(CfProduct cfProduct) {
this.cfProduct = cfProduct;
}

public CfProduct getCfProduct() {
return cfProduct;
}

public List<CfProduct> getCfProducts() {
return cfProducts;
}

public void setCfProducts(List<CfProduct> cfProducts) {
this.cfProducts = cfProducts;
}

public ProductService getProductService() {
return productService;
}

public void setProductService(ProductService productService) {
this.productService = productService;
}

public String getProId() {
return proId;
}

public void setProId(String proId) {
this.proId = proId;
}

public static long getSerialVersionUID() {
return serialVersionUID;
}

public String getUpdatePicFlag() {
return updatePicFlag;
}

public void setUpdatePicFlag(String updatePicFlag) {
this.updatePicFlag = updatePicFlag;
}

public Page getPage() {
return page;
}

public void setPage(Page page) {
this.page = page;
}

public List<CfProductclass> getProductclassList() {
return productclassList;
}

public void setProductclassList(List<CfProductclass> productclassList) {
this.productclassList = productclassList;
}

public int getGoPage() {
return goPage;
}

public void setGoPage(int goPage) {
this.goPage = goPage;
}

public void setMyFileContentType(String contentType) {
        this.contentType = contentType;
   }

    public void setMyFileFileName(String fileName) {
        this.fileName = fileName;
   }

    public void setMyFile(File myFile) {
        this.myFile = myFile;
   }

    public String getImageFileName() {
        return imageFileName;
   }

    public String getCaption() {
        return caption;
   }

     public void setCaption(String caption) {
        this.caption = caption;
   }

public void setImageFileName(String imageFileName) {
this.imageFileName = imageFileName;
}

}

因为时间关系没怎么仔细的分离代码，说明文字也很少，需要参考的请仔细的查看一下。

谢谢你们，有疑问和建议请直接提。想批评直接说，但不要进行人身攻击，呵呵。

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