struts2图片上传

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 {
  /*
   * 实际上传文件，此名字需和页面file控件名称一样
   */
   private File upload;
   /*
    * xxx 为 file 空间名称
    * 文件类型xxxContentType固定写法
    */
    private String uploadContentType; 
    /*
     * 上传的文件名称xxxFileName  
    */
    private String uploadFileName;

    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());//保存文件的存放路径
        } 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;
    }

}