JAVA执行LINUX命令加密内容以及MAC

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最近有遇到一个问题就是接口放提供的接口密文为PHP的sha256sum加密的内容
在网上找了半天没找到java相应的加密方式

最后迫不得已使用程序执行linux命令来加密
echo -n '123456bzGI9IZAaheT8LtAvhlYNnpDgwuy4hvw' | sha256sum | xxd -r -p | base64 -w0

java程序为：

public static String getSHA256Value(String password){
        String result = "";
        InputStream in = null;
        try {
            //Linux
            Process pro = Runtime.getRuntime().exec(new String[]{"/bin/sh","-c","echo -n '" + password + "' | sha256sum | xxd -r -p | base64 -w0"});
            pro.waitFor();
            in = pro.getInputStream();
            BufferedReader read = new BufferedReader(new InputStreamReader(in));
            result = read.readLine();
            if(StringUtil.isEmpty(result)){
                //Mac
                pro = Runtime.getRuntime().exec(new String[]{"/bin/bash","-c","echo -n '" + password + "' | shasum -a 256 | xxd -r -p | base64 -b0"});
                pro.waitFor();
                in = pro.getInputStream();
                read = new BufferedReader(new InputStreamReader(in));
                result = read.readLine();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

由于mac和linux有些不一样，所以执行的命令也稍微修改了下，如上