基于Java Web的图书馆借阅系统毕业设计项目基于SSM框架MySQL数据库文件基于B/S

package com.utils; import org.springframework.util.ResourceUtils; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.*; import java.net.InetAddress; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.*; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * @author Administrator sk9TbyJ3y/ZNZdLyO1Oigg== */ public class Utils { // public static void main(String[] args) throws UnsupportedEncodingException, NoSuchAlgorithmException { // System.out.println(encoderByMd5("abc")); // System.out.println(encoderByMd5("1234")); // } public static String getUUID() { //随机生成UUID return UUID.randomUUID().toString().replace("-", ""); } // public static String encoderByMd5(String str) // throws NoSuchAlgorithmException, UnsupportedEncodingException { // //确定计算方法 // MessageDigest md5 = MessageDigest.getInstance("MD5"); // BASE64Encoder base64en = new BASE64Encoder(); // //加密后的字符串 // String result = base64en.encode(md5.digest(str.getBytes("utf-8"))); // return result; // } /** * 上传单个文件方法 * @param request * @param file * @return * @throws IOException */ public static boolean uploadOneFileLayui(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws IOException { if (!file.isEmpty()) { //如果文件不为空，写入上传路径 String path = request.getSession().getServletContext().getRealPath("/images/upload"); //上传文件路径 //文件原始名字 String filename = file.getOriginalFilename(); String suffixLast = filename.substring(filename.lastIndexOf(".")); //获取文件后缀 String newFileName = Utils.getUUID()+suffixLast; //文件新名字 File filepath = new File(path, newFileName); ////判断路径是否存在，如果不存在就创建一个 if (!filepath.getParentFile().exists()) { filepath.getParentFile().mkdirs(); } //将上传文件保存到一个目标文件当中 file.transferTo(new File(path + File.separator + newFileName)); InetAddress address= InetAddress.getByName(request.getServerName()); String ip = address.getHostAddress();//获取服务器IP地址 int port = request.getServerPort();//获取服务器端口 StringBuffer url = request.getRequestURL();//url全路径 String uri = request.getRequestURI();//相对路径 String relImage=new String(url).split(uri)[0]; //将图片路劲写在当前服务器ip请求端口下的路径 String imageUrl=relImage+"/images/upload/"+newFileName; request.getSession().setAttribute("imageUploadUrl",imageUrl); return true; } return false; } /** * 上传单个文件-------------- * 上传到服务器具体的某个文件夹中 * * @param request * @param file * @return * @throws IOException */ public static boolean uploadOneFile(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws IOException { if (!file.isEmpty()) { //如果文件不为空，写入上传路径 // String path = request.getSession().getServletContext().getRealPath("/images/upload"); //上传文件路径 // String path="/home/static/images/";//远程服务器路径 String path = null; //文件原始名字localhost\\static\\images String filename = file.getOriginalFilename(); String suffixLast = filename.substring(filename.lastIndexOf(".")); if (suffixLast.equals(".pdf")) { //上传到pdf的文件夹中 path = "C:\\Users\\16941\\Desktop\\files\\pdf"; } else if (suffixLast.equals(".doc") || suffixLast.equals("docx")) { //上传到word的文件夹中 } else if (suffixLast.equals(".mp3")) { //上传到音频 } else if (suffixLast.equals(".mp4")) { } else { //上传到图片jpg||png path = "C:\\Users\\16941\\Desktop\\files\\images\\"; } // String suffixLast = filename.substring(filename.lastIndexOf(".")); //获取文件后缀 // String newFileName = Utils.getUUID()+suffixLast; //文件新名字 File filepath = new File(path, filename); System.out.println("这是文件---" + filepath); ////判断路径是否存在，如果不存在就创建一个 if (!filepath.getParentFile().exists()) { filepath.getParentFile().mkdirs(); } //将上传文件保存到一个目标文件当中 file.transferTo(new File(path + File.separator + filepath.getName())); InetAddress address = InetAddress.getByName(request.getServerName()); String ip = address.getHostAddress();//获取服务器IP地址 int port = request.getServerPort();//获取服务器端口 StringBuffer url = request.getRequestURL();//url全路径 String uri = request.getRequestURI();//相对路径 String relImage = new String(url).split(uri)[0]; //将图片路劲写在当前服务器ip请求端口下的路径 String imageUrl = path + filename; request.getSession().setAttribute("imageUploadUrl", imageUrl); return true; } return false; } public static boolean uploadOneFile2(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws IOException { if (!file.isEmpty()) { //如果文件不为空，写入上传路径 File path2 = new File(ResourceUtils.getURL("classpath:static").getPath().replace("%20"," ").replace('/', '\\')); System.out.println(path2); System.out.println(path2.getAbsolutePath()); if(!path2.exists()) path2 = new File(""); //如果上传目录为/static/images/upload/，则可以如下获取： File upload2 = new File(path2.getAbsolutePath(),"src/main/static/images"); String path333=upload2.getAbsolutePath(); //文件原始名字 String filename = file.getOriginalFilename(); String suffixLast = filename.substring(filename.lastIndexOf(".")); //获取文件后缀 String newFileName = Utils.getUUID()+suffixLast; //文件新名字 ////判断路径是否存在，如果不存在就创建一个 if (!upload2.exists()) { upload2.mkdirs(); } //将上传文件保存到一个目标文件当中 file.transferTo(new File(path333 + File.separator + newFileName)); request.getSession().setAttribute("imageUploadUrl",path333+"/"+newFileName); return true; } return false; } public static boolean springBootUploadOneFile(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws IOException { if (!file.isEmpty()) { //如果文件不为空，写入上传路径 //文件原始名字 String filename = file.getOriginalFilename(); // String suffixLast = filename.substring(filename.lastIndexOf(".")); //获取文件后缀 // String newFileName = Utils.getUUID()+suffixLast; //�