Java 获取绝对路径

// 获取绝对根路径

public static String getAbsoluteRootPath() {

        String rootPath = Thread.currentThread().getContextClassLoader()

                .getResource("").toString();

       

        String headStr = "file:/";

        if (rootPath.startsWith(headStr)) {

            rootPath = rootPath.substring(headStr.length());

        } else if (rootPath.startsWith("/")) {

            rootPath = rootPath.substring(1);

        }

       

        return rootPath;

    }

 

    // 获取绝对路径

    public static String getAbsolutePath(String relativePath) {

        return getAbsoluteRootPath() + relativePath;

    }