File writeTo File

文件流问题: file 写到另一个 file

    /**
     * 把服务器上源文件写到本项目临时文件夹中;
     * 目的为了在jsp页面在线转换PDF时能获取到url
     * this.getServletConfig().getServletContext().getRealPath("/") 获取项目运行路径
     * @param fjpath 附件相对路径
     * */
    private void writeToProject(String fjpath) {
        String name = null;
        String fileFold = null;
        InputStream is = null;
        FileOutputStream fos = null;
        String lswjj = null;
        try {
            String[] names = fjpath.split("//"); //以斜杠分割，因为保存在附件表中的路径为：/JYGL_ZYJSFJ//2016届毕业简介_1449544857570.pdf
            fileFold = names[0]; //文件夹：/JYGL_ZYJSFJ
            name = names[1]; //文件名：2016届毕业简介_1449544857570.pdf
            lswjj = this.getServletConfig().getServletContext().getRealPath("/")+fileFold; //临时文件夹(自定义路径)
            QyDao qydao = new QyDao(); //企业Dao操作类
            String xtglPath = qydao.findFilePath(); //xtgl_xtsz(系统设置表)中保存的文件夹路径
            File file = new File(xtglPath+fjpath);  //源文件 D:\xgxt\files\JYGL_ZYJSFJ\2016届毕业简介_1449544857570.pdf 
            is = new FileInputStream(file);
            File newFold = new File(lswjj); //新的临时文件夹
            boolean fold = newFold.exists();
            if (fold == false) {
                newFold.mkdirs(); //创建文件夹
            }
            File uploadFile = new File(lswjj + File.separator + name);
            //uploadFile:D:\JDevRuntime1213\system12.1.3.0.41.140521.1008\o.j2ee\drs\JywApp\ViewControllerWebApp.war\JYGL_ZYJSFJ\2016届毕业简介_1449544857570.pdf
            System.out.println("uploadFile:"+uploadFile);
            fos = new FileOutputStream(uploadFile);
            byte[] buffer = new byte[1024];
            int length = buffer.length;
            int size = 0;
            while ((size = is.read(buffer, 0, length)) != -1) {
                fos.write(buffer, 0, size);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (is != null) {
                    is.close();
                }
                if (fos != null) {
                    fos.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

 

package com.caac;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;

public class Doc {
	/**
	 * 负责将path1路径下的文件同步到path2下
	 * 
	 * @param path1
	 *            OA系统中读取附件的URL
	 * @param path2
	 *            档案系统中存放附件的路径
	 * @throws MalformedURLException
	 * @throws UnsupportedEncodingException
	 */
	public void wirteDoc(String path1, String path2)
			throws MalformedURLException, UnsupportedEncodingException {
		URL file = new URL(path1);
		OutputStream outputStream = null;
		InputStream inputStream = null;
		FileOutputStream out = null;
		File temp = null;
		try {
			inputStream = file.openStream();
			byte[] buffer = new byte[1024];// 设置一个大小为1K的数据缓冲空间
			int len = 0;
			temp = new File(path2.substring(0, path2.lastIndexOf("\\")));
			if (!temp.exists()) {
				temp.mkdirs();
			}
			out = new FileOutputStream(path2);
			while ((len = inputStream.read(buffer)) != -1) {
				out.write(buffer, 0, len);// 将缓冲空间的值写入path2对应的文件夹下
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (outputStream != null) {
					outputStream.close();
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}

	/**
	 * 把服务器上源文件写到本地文件夹中;
	 * 
	 * @param sourcePath
	 *            附件源路径
	 * @param aimFold
	 *            目标路径文件夹
	 * @param aimPath
	 *            目标附件路径
	 * */
	public static void writeToProject(String sourcePath, String aimFold,
			String aimPath) throws MalformedURLException,
			UnsupportedEncodingException {
		InputStream is = null;
		FileOutputStream fos = null;
		System.out.println("fold:"
				+ aimPath.substring(0, aimPath.lastIndexOf("\\")));
		try {
			File file = new File(sourcePath); // 源文件
			is = new FileInputStream(file);
			File newFold = new File(aimFold); // 新的文件夹
			boolean fold = newFold.exists();
			if (fold == false) {
				newFold.mkdirs(); // 创建文件夹
			}
			File uploadFile = new File(aimPath);
			fos = new FileOutputStream(uploadFile);
			byte[] buffer = new byte[1024];
			int length = buffer.length;
			int size = 0;
			while ((size = is.read(buffer, 0, length)) != -1) {
				fos.write(buffer, 0, size);
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (is != null) {
					is.close();
				}
				if (fos != null) {
					fos.close();
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}

	/**
	 * 把服务器上源文件写到本地文件夹中;
	 * 
	 * @param sourcePath
	 *            附件文件夹源路径
	 * @param aimFold
	 *            目标路径文件夹
	 * @throws UnsupportedEncodingException
	 * @throws MalformedURLException
	 * */
	public void readfile(String sourcePath, String aimFold)
			throws MalformedURLException, UnsupportedEncodingException {
		String sourceFile = "";
		String aimPath = "";
		File file = new File(sourcePath);
		if (!file.isDirectory()) {
			
		} else if (file.isDirectory()) {
			String[] filelist = file.list();
			for (int i = 0; i < filelist.length; i++) {
				File readfile = new File(sourcePath + "\\" + filelist[i]);
				sourceFile = sourcePath + "\\" + filelist[i];
				if (!readfile.isDirectory()) { // 非文件夹
					aimPath = aimFold + (i + 1) + "_" + filelist[i];
					System.out.println("aimPath:" + aimPath);
					writeToProject(sourceFile, aimFold, aimPath);

				} else if (readfile.isDirectory()) {
					readfile(sourcePath + "\\" + filelist[i], aimFold);
				}
			}
		}
	}

	public static void main(String[] args) {
		// String str =
		// "d:\\asfroot\\userfile\\dag\\dba\\oatemp\\attach\\oatemp_24_4_2.doc";
		// System.out.println(str.substring(0, str.lastIndexOf("\\")));
		// System.out.println("aaa,bbb,ccc".substring(0,"aaa,bbb,ccc".indexOf(",")));

		// Doc doc = new Doc();
		// try {
		// doc.writeToProject("E:\\test\\勤工助学测试要点.doc", "F:\\aaa\\",
		// "F:\\aaa\\test.doc");
		// } catch (MalformedURLException e) {
		// // TODO Auto-generated catch block
		// e.printStackTrace();
		// } catch (UnsupportedEncodingException e) {
		// // TODO Auto-generated catch block
		// e.printStackTrace();
		// }

		Doc doc = new Doc();
		try {
			doc.readfile("E:\\test", "F:\\aaa\\");
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("finish.");
	}
}