Struts 2のアップロードファイル機能実現


package com.sterning; 

import java.io.File; 

import javax.servlet.ServletContext; 

import org.apache.commons.io.FileUtils; 
import org.apache.struts2.util.ServletContextAware; 

import com.opensymphony.xwork2.ActionSupport; 

public class StrutsFileUpload extends ActionSupport implements 
        ServletContextAware { 

    private File upload;//        

    private String uploadContentType; //         

    private String uploadFileName; //       

    private String fileCaption;//          

    private ServletContext context; 

    public String execute() throws Exception { 

        try { 
            
            String targetDirectory = context.getRealPath("/upload"); 
            String targetFileName = uploadFileName; 
            File target = new File(targetDirectory, targetFileName); 
            FileUtils.copyFile(upload, target);            
            
            setUploadFileName(target.getPath());//          
        } catch (Exception e) { 

            addActionError(e.getMessage()); 

            return INPUT; 
        } 

        return SUCCESS; 

    } 

    public String getFileCaption() { 
        return fileCaption; 
    } 

    public void setFileCaption(String fileCaption) { 
        this.fileCaption = fileCaption; 
    } 

    public File getUpload() { 
        return upload; 
    } 

    public void setUpload(File upload) { 
        this.upload = upload; 
    } 

    public String getUploadContentType() { 
        return uploadContentType; 
    } 

    public void setUploadContentType(String uploadContentType) { 
        this.uploadContentType = uploadContentType; 
    } 

    public String getUploadFileName() { 
        return uploadFileName; 
    } 

    public void setUploadFileName(String uploadFileName) { 
        this.uploadFileName = uploadFileName; 
    } 

    public void setServletContext(ServletContext context) { 
        this.context = context; 
    } 

} 

 
<%@ page language="java" contentType="text/html; charset=GB2312"%>   
<%@ taglib prefix="s" uri="/struts-tags" %>   
<html> 
    <head> 
        <title>      </title> 
        <link href="<s:url value="/css/main.css"/>" rel="stylesheet" 
            type="text/css" /> 

    </head> 

    <body> 

        <s:actionerror /> 
        <s:fielderror /> 
        <s:form action="doUpload" method="POST" enctype="multipart/form-data"> 
            <tr> 
                <td colspan="2"> 
                    <h1> 
                               
                    </h1> 
                </td> 
            </tr> 

            <s:file name="upload" label="     " /> 
            <s:textfield name="fileCaption" label="  " /> 
            <s:submit value="     "/> 
        </s:form> 
    </body> 
</html> 

 
<%@ page language="java" contentType="text/html; charset=GB2312"%>  
<%@ taglib prefix="s" uri="/struts-tags"%> 
<html> 
    <head> 
        <title>    </title> 
        <link href="<s:url value="/css/main.css"/>" rel="stylesheet" 
            type="text/css" /> 
    </head> 

    <body> 
        <table class="wwFormTable"> 
            <tr> 

                <td colspan="2"> 
                    <h1> 
                             
                    </h1> 
                </td> 
            </tr> 

            <tr> 
                <td class="tdLabel"> 
                    <label for="doUpload_upload" class="label"> 
                            : 
                    </label> 
                </td> 
                <td> 
                    <s:property value="uploadContentType" /> 
                </td> 
            </tr> 

            <tr> 
                <td class="tdLabel"> 
                    <label for="doUpload_upload" class="label"> 
                            : 
                    </label> 
                </td> 
                <td> 
                    <s:property value="uploadFileName" /> 
                </td> 
            </tr> 


            <tr> 
                <td class="tdLabel"> 
                    <label for="doUpload_upload" class="label"> 
                            : 
                    </label> 
                </td> 
                <td> 
                    <s:property value="upload" /> 
                </td> 
            </tr> 

            <tr> 
                <td class="tdLabel"> 
                    <label for="doUpload_upload" class="label"> 
                          : 
                    </label> 
                </td> 
                <td> 
                    <s:property value="fileCaption" /> 
                </td> 
            </tr> 


        </table> 

    </body> 
</html> 

 
<?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> 
    <constant name="struts.devMode" value="true" /> 
    <constant name="struts.i18n.encoding" value="GB2312" /> 

    <package name="NG" namespace="/" extends="struts-default"> 
        <action name="showUpload"> 
            <result>/upload.jsp</result> 
        </action> 
        
        <action name="doUpload" class="com.sterning.StrutsFileUpload"> 
            <result name="input">/upload.jsp</result> 
            <result>/upload_success.jsp</result> 
        </action> 
    </package> 

</struts> 

 
<?xml version="1.0" encoding="UTF-8"?> 
<web-app id="WebApp_ID" version="2.4" 
    xmlns="http://java.sun.com/xml/ns/j2ee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 

    <display-name>customization</display-name> 

    <filter> 
        <filter-name>struts-cleanup</filter-name> 
        <filter-class> 
            org.apache.struts2.dispatcher.ActionContextCleanUp 
        </filter-class> 
    </filter>  


    <filter> 
        <filter-name>struts2</filter-name> 
        <filter-class> 
            org.apache.struts2.dispatcher.FilterDispatcher 
        </filter-class> 
    </filter> 


    <filter-mapping> 
        <filter-name>struts-cleanup</filter-name> 
        <url-pattern>/*</url-pattern> 
    </filter-mapping> 


    <filter-mapping> 
        <filter-name>struts2</filter-name> 
        <url-pattern>/*</url-pattern> 
    </filter-mapping> 

</web-app>