Struts2上传文件

jsp:

<form action="file_upload.action" method="post" enctype="multipart/form-data">
        文件：<input type="file" name="myfile"/>
        <input type="submit" value="上传"/>
    </form>

action:

package com.xyy.action;

import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import com.opensymphony.xwork2.Action;

public class FileAction {
    
    private File myfile;    //获取文件本身的数据
    private String myfileFileName;    //获取文件名称,变量名命名规则：域名(myfile)+"FileName"
    private String myfileContentType;    //获取文件类型,变量名命名规则：域名(myfile)+"ContentType"
    
    public void setMyfile(File myfile) {
        this.myfile = myfile;
    }

    public void setMyfileFileName(String myfileFileName) {
        this.myfileFileName = myfileFileName;
    }

    public File getMyfile() {
        return myfile;
    }

    public String getMyfileFileName() {
        return myfileFileName;
    }

    public String getMyfileContentType() {
        return myfileContentType;
    }

    public void setMyfileContentType(String myfileContentType) {
        this.myfileContentType = myfileContentType;
    }

    public String upload() throws IOException{
        if(myfile != null && myfile.length() != 0){
            //写入C盘权限不够的问题：以管理员身份运行eclipse
            File destFile = new File("C:/"+myfileFileName);
            FileUtils.copyFile(myfile, destFile);
            return Action.SUCCESS;
        }else{
            System.out.println("文件为空！");
            return Action.ERROR;
        }
    }
    
}

struts.xml:

<struts>
    <!-- 配置常量 -->
    <constant name="struts.configuration.xml.reload" value="true" />
    
    <package name="upload-package" extends="struts-default">
        <action name="file_*" class="com.xyy.action.FileAction" method="{1}">
            <result>/upload_ok.jsp</result>
            <result name="error">/upload_err.jsp</result>
        </action>
    </package>
</struts>