【spring】【spring boot】获取系统根路径，根目录，用于存储临时生成的文件在服务器上

 

今日份代码：

Spring

private static final String UPLOAD_TEMP_FILE_NAME = "测试商品数据.xlsx"; 　　/** * 获取临时文件路径 * @return
     */
    private String getFilePath(){ String path = 当前类.class.getResource("/").getPath()+UPLOAD_TEMP_FILE_NAME; return path; }

 

 

 Spring Boot：

 

　　　　//第一种
        File path = new File(ResourceUtils.getURL("classpath:").getPath()); if(!path.exists()) path = new File(""); System.out.println(path.getAbsolutePath()); //第二种
        System.out.println(System.getProperty("user.dir")); //第三种
        String path1 = ClassUtils.getDefaultClassLoader().getResource("").getPath(); System.out.println(URLDecoder.decode(path1, "utf-8")); //第四种
        String path2 = ResourceUtils.getURL("classpath:").getPath(); System.out.println(path2); //第五种 spring boot打jar包，建议使用第五种
        ApplicationHome h = new ApplicationHome(getClass()); File jarF = h.getSource(); System.out.println(jarF.getParentFile().toString()); //第六种 spring boot打jar包或者不打包，都可以使用的，建议区分系统以完善路径 本种也建议使用
         Properties properties = System.getProperties(); System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>系统：" + properties.getProperty("os.name")); System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>根路径" + properties.getProperty("user.dir")); String path = properties.getProperty("user.dir"); if (properties.getProperty("os.name").toLowerCase().contains("win")) { path += "\\"; }else { path += "/"; }

 

 

 

 

使用第五种示例如下：

 

private static final String UPLOAD_TEMP_FILE_NAME = "测试商品数据.xlsx"; 　　/** * 获取临时文件路径 * @return
     */
    private String getFilePath(){ ApplicationHome h = new ApplicationHome(getClass()); File jarF = h.getSource(); String path = jarF.getParentFile().toString(); int i = path.lastIndexOf("/"); if (i > 0) { path = path.substring(0,i+1); } path += UPLOAD_TEMP_FILE_NAME; return path; }

 

 

使用第六种示例如下：

windows本机未打包运行结果： >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>系统：Windows 10
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>根路径E:\document\ideaProject\p-job Linux打jar包运行结果： >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>系统：Linux >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>根路径/data/web/domains/p-job.com/server8097

private static final String UPLOAD_TEMP_FILE_NAME = "测试商品数据.xlsx"; 　　/** * 获取临时文件路径 * @return
     */
    private String getFilePath(){ Properties properties = System.getProperties(); System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>系统：" + properties.getProperty("os.name")); System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>根路径" + properties.getProperty("user.dir")); String path = properties.getProperty("user.dir"); if (properties.getProperty("os.name").toLowerCase().contains("win")) { path += "\\"; }else { path += "/"; } path += UPLOAD_TEMP_FILE_NAME; return path; }