94 lines
2.5 KiB
Java
94 lines
2.5 KiB
Java
package com.mac.common.util;
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import org.springframework.util.ResourceUtils;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.UnsupportedEncodingException;
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import java.net.URLDecoder;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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public class PathUtil {
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/**
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* 获取项目所在的根目录路径 resources路径
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* @return
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*/
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public static String getProjectRootPath() {
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String absolutePath = null;
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try {
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String url = ResourceUtils.getURL("classpath:").getPath();
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absolutePath = urlDecode(new File(url).getAbsolutePath()) + File.separator;
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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}
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return absolutePath;
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}
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/**
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* 路径解码
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* @param url
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* @return
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*/
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public static String urlDecode(String url){
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String decodeUrl = null;
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try {
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decodeUrl = URLDecoder.decode(url, "utf-8");
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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return decodeUrl;
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}
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/**
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* 得到static路径
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*
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* @return
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*/
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public static String getStaticPath() {
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String projectRootAbsolutePath = getProjectRootPath();
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int index = projectRootAbsolutePath.indexOf("file:");
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if (index != -1){
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projectRootAbsolutePath = projectRootAbsolutePath.substring(0, index);
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}
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return projectRootAbsolutePath + "static" + File.separator;
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}
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/**
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* 依据原始文件名生成新文件名
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*
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* @return
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*/
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public static String getFileName(String fileName) {
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String getfileName = "";
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try {
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SecureRandom number = SecureRandom.getInstance("SHA1PRNG");
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return getfileName = "" + number.nextInt(10000)
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+ System.currentTimeMillis() + getFileExt(fileName);
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} catch (NoSuchAlgorithmException e) {
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//LOG.error("生成安全随机数失败");
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}
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return getfileName = ""
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+ System.currentTimeMillis() + getFileExt(fileName);
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}
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/**
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* 获取文件扩展名
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*
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* @return string
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*/
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private static String getFileExt(String fileName) {
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if (fileName.lastIndexOf(".") == -1) {
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return ".png";
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//这里暂时用jpg，后续应该去获取真实的文件类型
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}
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return fileName.substring(fileName.lastIndexOf("."));
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}
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}
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