简单的上传文件

<input type="file" class="upload" name="upload"/>

package com.baitw.struts.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

/**
 * 
 * 上传图片
 * 
 * */

public class UploadImage extends ActionSupport {

	private String title;
	private File upload;
	private String uploadContextType;
	private String uploadFileName;
	private String savePath;

	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public File getUpload() {
		return upload;
	}

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

	public String getUploadContextType() {
		return uploadContextType;
	}

	public void setUploadContextType(String uploadContextType) {
		this.uploadContextType = uploadContextType;
	}

	public String getUploadFileName() {
		return uploadFileName;
	}

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

	public String getSavePath() {
		return ServletActionContext.getRequest().getRealPath(savePath);
	}

	public void setSavePath(String savePath) {
		this.savePath = savePath;
	}

	@Override
	public String execute() throws Exception {
		// TODO Auto-generated method stub
		FileOutputStream fos=new FileOutputStream
		(getSavePath()+"\\"+getUploadFileName());
		FileInputStream fis=new FileInputStream(getUpload());
		byte[] buffer=new byte[1024];
		int length=0;
		while((length=fis.read(buffer))>0){
			fos.write(buffer,0,length);
		}
		return "upload_success";
	}	
}

<!-- 上传图片 -->
		<action name="uploadImage" class="uploadImage">
			<!-- 动态设置文件保存路径的属性值 -->
			<param name="savePath">/uploadImages</param>
			<result name="upload_success">/succ.jsp</result>
			<result name="input">/view/globalError.jsp</result>
		</action>

<%@ page language="java" contentType="text/html; charset=GBK"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<html>
    <head>
        <title>上传成功</title>
    </head>
    <body>
     <img src="<s:property value="'uploadImages/'+uploadFileName"/>"/><br>
    </body>
</html>

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