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src/com/fh/util/FileUpload.java 3.05 KB
ad5081d3   孙向锦   初始化项目
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  package com.fh.util;
  
  import java.io.BufferedInputStream;
  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.net.MalformedURLException;
  import java.net.URL;
  
  import org.apache.commons.io.FileUtils;
  import org.springframework.web.multipart.MultipartFile;
  
  /**
   * 上传文件
   * 创建人:FH Q313596790
   * 创建时间:20141223
   * @version
   */
  public class FileUpload {
  
  	/**上传文件
  	 * @param file 			//文件对象
  	 * @param filePath		//上传路径
  	 * @param fileName		//文件名
  	 * @return  文件名
  	 */
  	public static String fileUp(MultipartFile file, String filePath, String fileName){
  		String extName = ""; // 扩展名格式:
  		try {
  			if (file.getOriginalFilename().lastIndexOf(".") >= 0){
  				extName = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
  			}
  			copyFile(file.getInputStream(), filePath, fileName+extName).replaceAll("-", "");
  		} catch (IOException e) {
  			System.out.println(e);
  		}
  		return fileName+extName;
  	}
  	
  	/**
  	 * 写文件到当前目录的upload目录中
  	 * @param in
  	 * @param fileName
  	 * @throws IOException
  	 */
  	private static String copyFile(InputStream in, String dir, String realName)
  			throws IOException {
  		File file = mkdirsmy(dir,realName);
  		FileUtils.copyInputStreamToFile(in, file);
  		return realName;
  	}
  	
  	
  	/**判断路径是否存在,否:创建此路径
  	 * @param dir  文件路径
  	 * @param realName  文件名
  	 * @throws IOException 
  	 */
  	public static File mkdirsmy(String dir, String realName) throws IOException{
  		File file = new File(dir, realName);
  		if (!file.exists()) {
  			if (!file.getParentFile().exists()) {
  				file.getParentFile().mkdirs();
  			}
  			file.createNewFile();
  		}
  		return file;
  	}
  	
  	
  	/**下载网络图片上传到服务器上
  	 * @param httpUrl 图片网络地址
  	 * @param filePath	图片保存路径
  	 * @param myFileName  图片文件名(null时用网络图片原名)
  	 * @return	返回图片名称
  	 */
  	public static String getHtmlPicture(String httpUrl, String filePath , String myFileName) {
  		
  		URL url;						//定义URL对象url
  		BufferedInputStream in;			//定义输入字节缓冲流对象in
  		FileOutputStream file;			//定义文件输出流对象file
  		try {
  			String fileName = null == myFileName?httpUrl.substring(httpUrl.lastIndexOf("/")).replace("/", ""):myFileName; //图片文件名(null时用网络图片原名)
  			url = new URL(httpUrl);		//初始化url对象
  			in = new BufferedInputStream(url.openStream());									//初始化in对象,也就是获得url字节流
  			//file = new FileOutputStream(new File(filePath +"\\"+ fileName));
  			file = new FileOutputStream(mkdirsmy(filePath,fileName));
  			int t;
  			while ((t = in.read()) != -1) {
  				file.write(t);
  			}
  			file.close();
  			in.close();
  			return fileName;
  		} catch (MalformedURLException e) {
  			e.printStackTrace();
  		} catch (FileNotFoundException e) {
  			e.printStackTrace();
  		} catch (IOException e) {
  			e.printStackTrace();
  		}
  		return null;
  		
  	}
  }