From 6c15ab08fb5060a40b8f231e980d3289988c660a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=B2=B3=E6=9E=97?= Date: Fri, 9 Dec 2022 03:41:23 +0000 Subject: [PATCH 1/3] =?UTF-8?q?=E4=BC=98=E5=8C=96deleteFile=E6=96=B9?= =?UTF-8?q?=E6=B3=95=E8=BF=94=E5=9B=9E=E5=80=BC=EF=BC=8C=E6=8E=A5=E5=8F=97?= =?UTF-8?q?File.delete=E7=9A=84false=E8=BF=94=E5=9B=9E=E5=80=BC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: 岳林 --- FileUtils.java | 291 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 291 insertions(+) create mode 100644 FileUtils.java diff --git a/FileUtils.java b/FileUtils.java new file mode 100644 index 000000000..7d5aa6f89 --- /dev/null +++ b/FileUtils.java @@ -0,0 +1,291 @@ +package com.ruoyi.common.utils.file; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.OutputStream; +import java.io.UnsupportedEncodingException; +import java.net.URLEncoder; +import java.nio.charset.StandardCharsets; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import org.apache.commons.io.FilenameUtils; +import org.apache.commons.io.IOUtils; +import org.apache.commons.lang3.ArrayUtils; +import com.ruoyi.common.config.RuoYiConfig; +import com.ruoyi.common.utils.DateUtils; +import com.ruoyi.common.utils.StringUtils; +import com.ruoyi.common.utils.uuid.IdUtils; + +/** + * 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 + { + IOUtils.close(os); + IOUtils.close(fis); + } + } + + /** + * 写数据到文件中 + * + * @param data 数据 + * @return 目标文件 + * @throws IOException IO异常 + */ + public static String writeImportBytes(byte[] data) throws IOException + { + return writeBytes(data, RuoYiConfig.getImportPath()); + } + + /** + * 写数据到文件中 + * + * @param data 数据 + * @param uploadDir 目标文件 + * @return 目标文件 + * @throws IOException IO异常 + */ + public static String writeBytes(byte[] data, String uploadDir) throws IOException + { + FileOutputStream fos = null; + String pathName = ""; + try + { + String extension = getFileExtendName(data); + pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension; + File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName); + fos = new FileOutputStream(file); + fos.write(data); + } + finally + { + IOUtils.close(fos); + } + return FileUploadUtils.getPathFileName(uploadDir, pathName); + } + + /** + * 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()) + { + flag = file.delete(); + } + 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); + } + + /** + * 检查文件是否可下载 + * + * @param resource 需要下载的文件 + * @return true 正常 false 非法 + */ + public static boolean checkAllowDownload(String resource) + { + // 禁止目录上跳级别 + if (StringUtils.contains(resource, "..")) + { + return false; + } + + // 检查允许下载的文件规则 + if (ArrayUtils.contains(MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION, FileTypeUtils.getFileType(resource))) + { + return true; + } + + // 不在允许下载的文件规则 + return false; + } + + /** + * 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; + } + + /** + * 下载文件名重新编码 + * + * @param response 响应对象 + * @param realFileName 真实文件名 + * @return + */ + public static void setAttachmentResponseHeader(HttpServletResponse response, String realFileName) throws UnsupportedEncodingException + { + String percentEncodedFileName = percentEncode(realFileName); + + StringBuilder contentDispositionValue = new StringBuilder(); + contentDispositionValue.append("attachment; filename=") + .append(percentEncodedFileName) + .append(";") + .append("filename*=") + .append("utf-8''") + .append(percentEncodedFileName); + + response.setHeader("Content-disposition", contentDispositionValue.toString()); + } + + /** + * 百分号编码工具方法 + * + * @param s 需要百分号编码的字符串 + * @return 百分号编码后的字符串 + */ + public static String percentEncode(String s) throws UnsupportedEncodingException + { + String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString()); + return encode.replaceAll("\\+", "%20"); + } + + /** + * 获取图像后缀 + * + * @param photoByte 图像数据 + * @return 后缀名 + */ + public static String getFileExtendName(byte[] photoByte) + { + String strFileExtendName = "jpg"; + if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56) + && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97)) + { + strFileExtendName = "gif"; + } + else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70)) + { + strFileExtendName = "jpg"; + } + else if ((photoByte[0] == 66) && (photoByte[1] == 77)) + { + strFileExtendName = "bmp"; + } + else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71)) + { + strFileExtendName = "png"; + } + return strFileExtendName; + } + + /** + * 获取文件名称 /profile/upload/2022/04/16/ruoyi.png -- ruoyi.png + * + * @param fileName 路径名称 + * @return 没有文件路径的名称 + */ + public static String getName(String fileName) + { + if (fileName == null) + { + return null; + } + int lastUnixPos = fileName.lastIndexOf('/'); + int lastWindowsPos = fileName.lastIndexOf('\\'); + int index = Math.max(lastUnixPos, lastWindowsPos); + return fileName.substring(index + 1); + } + + /** + * 获取不带后缀文件名称 /profile/upload/2022/04/16/ruoyi.png -- ruoyi + * + * @param fileName 路径名称 + * @return 没有文件路径和后缀的名称 + */ + public static String getNameNotSuffix(String fileName) + { + if (fileName == null) + { + return null; + } + String baseName = FilenameUtils.getBaseName(fileName); + return baseName; + } +} + From 6fb427251768ba7782a4436bf2ad9bbe139f95df Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=B2=B3=E6=9E=97?= Date: Fri, 9 Dec 2022 03:52:54 +0000 Subject: [PATCH 2/3] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=20File?= =?UTF-8?q?Utils.java?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- FileUtils.java | 291 ------------------------------------------------- 1 file changed, 291 deletions(-) delete mode 100644 FileUtils.java diff --git a/FileUtils.java b/FileUtils.java deleted file mode 100644 index 7d5aa6f89..000000000 --- a/FileUtils.java +++ /dev/null @@ -1,291 +0,0 @@ -package com.ruoyi.common.utils.file; - -import java.io.File; -import java.io.FileInputStream; -import java.io.FileNotFoundException; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.OutputStream; -import java.io.UnsupportedEncodingException; -import java.net.URLEncoder; -import java.nio.charset.StandardCharsets; -import javax.servlet.http.HttpServletRequest; -import javax.servlet.http.HttpServletResponse; -import org.apache.commons.io.FilenameUtils; -import org.apache.commons.io.IOUtils; -import org.apache.commons.lang3.ArrayUtils; -import com.ruoyi.common.config.RuoYiConfig; -import com.ruoyi.common.utils.DateUtils; -import com.ruoyi.common.utils.StringUtils; -import com.ruoyi.common.utils.uuid.IdUtils; - -/** - * 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 - { - IOUtils.close(os); - IOUtils.close(fis); - } - } - - /** - * 写数据到文件中 - * - * @param data 数据 - * @return 目标文件 - * @throws IOException IO异常 - */ - public static String writeImportBytes(byte[] data) throws IOException - { - return writeBytes(data, RuoYiConfig.getImportPath()); - } - - /** - * 写数据到文件中 - * - * @param data 数据 - * @param uploadDir 目标文件 - * @return 目标文件 - * @throws IOException IO异常 - */ - public static String writeBytes(byte[] data, String uploadDir) throws IOException - { - FileOutputStream fos = null; - String pathName = ""; - try - { - String extension = getFileExtendName(data); - pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension; - File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName); - fos = new FileOutputStream(file); - fos.write(data); - } - finally - { - IOUtils.close(fos); - } - return FileUploadUtils.getPathFileName(uploadDir, pathName); - } - - /** - * 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()) - { - flag = file.delete(); - } - 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); - } - - /** - * 检查文件是否可下载 - * - * @param resource 需要下载的文件 - * @return true 正常 false 非法 - */ - public static boolean checkAllowDownload(String resource) - { - // 禁止目录上跳级别 - if (StringUtils.contains(resource, "..")) - { - return false; - } - - // 检查允许下载的文件规则 - if (ArrayUtils.contains(MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION, FileTypeUtils.getFileType(resource))) - { - return true; - } - - // 不在允许下载的文件规则 - return false; - } - - /** - * 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; - } - - /** - * 下载文件名重新编码 - * - * @param response 响应对象 - * @param realFileName 真实文件名 - * @return - */ - public static void setAttachmentResponseHeader(HttpServletResponse response, String realFileName) throws UnsupportedEncodingException - { - String percentEncodedFileName = percentEncode(realFileName); - - StringBuilder contentDispositionValue = new StringBuilder(); - contentDispositionValue.append("attachment; filename=") - .append(percentEncodedFileName) - .append(";") - .append("filename*=") - .append("utf-8''") - .append(percentEncodedFileName); - - response.setHeader("Content-disposition", contentDispositionValue.toString()); - } - - /** - * 百分号编码工具方法 - * - * @param s 需要百分号编码的字符串 - * @return 百分号编码后的字符串 - */ - public static String percentEncode(String s) throws UnsupportedEncodingException - { - String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString()); - return encode.replaceAll("\\+", "%20"); - } - - /** - * 获取图像后缀 - * - * @param photoByte 图像数据 - * @return 后缀名 - */ - public static String getFileExtendName(byte[] photoByte) - { - String strFileExtendName = "jpg"; - if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56) - && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97)) - { - strFileExtendName = "gif"; - } - else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70)) - { - strFileExtendName = "jpg"; - } - else if ((photoByte[0] == 66) && (photoByte[1] == 77)) - { - strFileExtendName = "bmp"; - } - else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71)) - { - strFileExtendName = "png"; - } - return strFileExtendName; - } - - /** - * 获取文件名称 /profile/upload/2022/04/16/ruoyi.png -- ruoyi.png - * - * @param fileName 路径名称 - * @return 没有文件路径的名称 - */ - public static String getName(String fileName) - { - if (fileName == null) - { - return null; - } - int lastUnixPos = fileName.lastIndexOf('/'); - int lastWindowsPos = fileName.lastIndexOf('\\'); - int index = Math.max(lastUnixPos, lastWindowsPos); - return fileName.substring(index + 1); - } - - /** - * 获取不带后缀文件名称 /profile/upload/2022/04/16/ruoyi.png -- ruoyi - * - * @param fileName 路径名称 - * @return 没有文件路径和后缀的名称 - */ - public static String getNameNotSuffix(String fileName) - { - if (fileName == null) - { - return null; - } - String baseName = FilenameUtils.getBaseName(fileName); - return baseName; - } -} - From d737f613a5139768801a0d2d1de81a87a906b3dd Mon Sep 17 00:00:00 2001 From: fanchenweimin Date: Fri, 9 Dec 2022 11:59:54 +0800 Subject: [PATCH 3/3] =?UTF-8?q?=E4=BC=98=E5=8C=96deleteFile=E6=96=B9?= =?UTF-8?q?=E6=B3=95=E8=BF=94=E5=9B=9E=E5=80=BC=EF=BC=8C=E6=8E=A5=E5=8F=97?= =?UTF-8?q?File.delete=E7=9A=84false=E8=BF=94=E5=9B=9E=E5=80=BC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../src/main/java/com/ruoyi/common/utils/file/FileUtils.java | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java index b25de3eb5..7d5aa6f89 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/file/FileUtils.java @@ -116,8 +116,7 @@ public class FileUtils // 路径为文件且不为空则进行删除 if (file.isFile() && file.exists()) { - file.delete(); - flag = true; + flag = file.delete(); } return flag; }