同步升级3.0

疯狂的狮子li

2020-07-20 1e79d6f56fbd9a054800f1c62fd95bacda37c6b3

 ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java

@@ -1,142 +1,142 @@
package com.ruoyi.common.utils.file;



import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import java.net.URLEncoder;

import javax.servlet.http.HttpServletRequest;



/**

 * 文件处理工具类

 * 
 * @author ruoyi

 */

public class FileUtils

{

    public static String FILENAME_PATTERN = "[a-zA-Z0-9_\\-\\|\\.\\u4e00-\\u9fa5]+";



    /**

     * 输出指定文件的byte数组

     * 
     * @param filePath 文件路径

     * @param os 输出流

     * @return

     */

    public static void writeBytes(String filePath, OutputStream os) throws IOException

    {

        FileInputStream fis = null;

        try

        {

            File file = new File(filePath);

            if (!file.exists())

            {

                throw new FileNotFoundException(filePath);

            }

            fis = new FileInputStream(file);

            byte[] b = new byte[1024];

            int length;

            while ((length = fis.read(b)) > 0)

            {

                os.write(b, 0, length);

            }

        }

        catch (IOException e)

        {

            throw e;

        }

        finally

        {

            if (os != null)

            {

                try

                {

                    os.close();

                }

                catch (IOException e1)

                {

                    e1.printStackTrace();

                }

            }

            if (fis != null)

            {

                try

                {

                    fis.close();

                }

                catch (IOException e1)

                {

                    e1.printStackTrace();

                }

            }

        }

    }



    /**

     * 删除文件

     * 
     * @param filePath 文件

     * @return

     */

    public static boolean deleteFile(String filePath)

    {

        boolean flag = false;

        File file = new File(filePath);

        // 路径为文件且不为空则进行删除

        if (file.isFile() && file.exists())

        {

            file.delete();

            flag = true;

        }

        return flag;

    }



    /**

     * 文件名称验证

     * 
     * @param filename 文件名称

     * @return true 正常 false 非法

     */

    public static boolean isValidFilename(String filename)

    {

        return filename.matches(FILENAME_PATTERN);

    }



    /**

     * 下载文件名重新编码

     * 
     * @param request 请求对象

     * @param fileName 文件名

     * @return 编码后的文件名

     */

    public static String setFileDownloadHeader(HttpServletRequest request, String fileName)

            throws UnsupportedEncodingException

    {

        final String agent = request.getHeader("USER-AGENT");

        String filename = fileName;

        if (agent.contains("MSIE"))

        {

            // IE浏览器

            filename = URLEncoder.encode(filename, "utf-8");

            filename = filename.replace("+", " ");

        }

        else if (agent.contains("Firefox"))

        {

            // 火狐浏览器

            filename = new String(fileName.getBytes(), "ISO8859-1");

        }

        else if (agent.contains("Chrome"))

        {

            // google浏览器

            filename = URLEncoder.encode(filename, "utf-8");

        }

        else

        {

            // 其它浏览器

            filename = URLEncoder.encode(filename, "utf-8");

        }

        return filename;

    }

}

package com.ruoyi.common.utils.file;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import javax.servlet.http.HttpServletRequest;

/**
 * 文件处理工具类
 * 
 * @author ruoyi
 */
public class FileUtils
{
    public static String FILENAME_PATTERN = "[a-zA-Z0-9_\\-\\|\\.\\u4e00-\\u9fa5]+";

    /**
     * 输出指定文件的byte数组
     * 
     * @param filePath 文件路径
     * @param os 输出流
     * @return
     */
    public static void writeBytes(String filePath, OutputStream os) throws IOException
    {
        FileInputStream fis = null;
        try
        {
            File file = new File(filePath);
            if (!file.exists())
            {
                throw new FileNotFoundException(filePath);
            }
            fis = new FileInputStream(file);
            byte[] b = new byte[1024];
            int length;
            while ((length = fis.read(b)) > 0)
            {
                os.write(b, 0, length);
            }
        }
        catch (IOException e)
        {
            throw e;
        }
        finally
        {
            if (os != null)
            {
                try
                {
                    os.close();
                }
                catch (IOException e1)
                {
                    e1.printStackTrace();
                }
            }
            if (fis != null)
            {
                try
                {
                    fis.close();
                }
                catch (IOException e1)
                {
                    e1.printStackTrace();
                }
            }
        }
    }

    /**
     * 删除文件
     * 
     * @param filePath 文件
     * @return
     */
    public static boolean deleteFile(String filePath)
    {
        boolean flag = false;
        File file = new File(filePath);
        // 路径为文件且不为空则进行删除
        if (file.isFile() && file.exists())
        {
            file.delete();
            flag = true;
        }
        return flag;
    }

    /**
     * 文件名称验证
     * 
     * @param filename 文件名称
     * @return true 正常 false 非法
     */
    public static boolean isValidFilename(String filename)
    {
        return filename.matches(FILENAME_PATTERN);
    }

    /**
     * 下载文件名重新编码
     * 
     * @param request 请求对象
     * @param fileName 文件名
     * @return 编码后的文件名
     */
    public static String setFileDownloadHeader(HttpServletRequest request, String fileName)
            throws UnsupportedEncodingException
    {
        final String agent = request.getHeader("USER-AGENT");
        String filename = fileName;
        if (agent.contains("MSIE"))
        {
            // IE浏览器
            filename = URLEncoder.encode(filename, "utf-8");
            filename = filename.replace("+", " ");
        }
        else if (agent.contains("Firefox"))
        {
            // 火狐浏览器
            filename = new String(fileName.getBytes(), "ISO8859-1");
        }
        else if (agent.contains("Chrome"))
        {
            // google浏览器
            filename = URLEncoder.encode(filename, "utf-8");
        }
        else
        {
            // 其它浏览器
            filename = URLEncoder.encode(filename, "utf-8");
        }
        return filename;
    }
}