<?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="struts3.1" extends="struts-default">
        <action name="upload" class="controller.Upload">
            <result name="done">/zengjia.jsp</result>
            <result name="input">/register.jsp</result>
        </action>
    </package>

    <constant name="struts.ui.theme" value="simple"></constant>
</struts>

package controller;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class Upload extends ActionSupport {

    private String username;

    private File uploadFile;

    private String uploadFileFileName;

    @Override
    public void validate() {

    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public File getUploadFile() {
        return uploadFile;
    }

    public void setUploadFile(File uploadFile) {
        this.uploadFile = uploadFile;
    }

    public String getUploadFileFileName() {
        return uploadFileFileName;
    }

    public void setUploadFileFileName(String uploadFileFileName) {
        this.uploadFileFileName = uploadFileFileName;
    }

    public String execute() throws IOException {
        //用户名
        System.out.println("username" + username);
        //放在哪
        String targetDirectory = ServletActionContext.getRequest().getRealPath("/upload");
        //生成对象
        File target = new File(targetDirectory, uploadFileFileName);
        //复制对象
        FileUtils.copyFile(uploadFile, target);

        return "done";
    }

}