uploadaction.java

struts2 的上传示例

package com.ata.upload;



import java.io.*;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport{
	private String title;
	private File upload;
	private String uploadContentType;
	private String uploadFileName;
	private String savePath;
//	private String allowTypes;
	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 getUploadContentType() {
		return uploadContentType;
	}
	public void setUploadContentType(String uploadContentType) {
		this.uploadContentType = uploadContentType;
	}
	public String getUploadFileName() {
		return uploadFileName;
	}
	public void setUploadFileName(String uploadFileName) {
		this.uploadFileName = uploadFileName;
	}
	
	//注意savePath的get和set方法	
	public String getSavePath() throws Exception {
		return ServletActionContext.getRequest().getRealPath(savePath);
		//获取web应用的绝对路径
	}
	public void setSavePath(String value) {
		this.savePath = value;
	}
//	//手动实现文件过滤	
//	public String getAllowTypes(){
//		return allowTypes;
//	}
//	public void setAllowTypes(String allowTypes)
//	{
//		this.allowTypes=allowTypes;
//	}	

//	public String filterType(String[] types){
//		String fileType=getUploadContentType();
//		for(String type:types){
//			if(type.equals(fileType)){
//				return null;
//			}
//		}
//	return INPUT;
//	}
//
//
//	
//	
	public String execute() throws Exception{
	
//		String filterResult =filterType(getAllowTypes.split(","));
//		if (filterResult!=null){
//			ActionContext.getContext().put("typeError","您要上传的文件类型不正确！");
//			return filterResult;
//		}
//		
		

		FileOutputStream fos=new FileOutputStream(getSavePath()+"\\"+getUploadFileName());
		FileInputStream fis= new FileInputStream(getUpload());
		
		byte[] buffer=new byte[1024];
		int len=0;
		while((len=fis.read(buffer))>0){
			fos.write(buffer,0,len);
		}
		return SUCCESS;
		
	}
	
}