java读取本地文件内容XML文件

    /**
     * 读xml文件
     *
     * @param file 文件
     * @return
     * @throws IOException
     * @throws IOException
     */
    public static String readXml(File file) throws IOException, IOException, DocumentException {
        String s = "";
        //1.创建SAXReader对象用于读取xml文件
        SAXReader reader = new SAXReader();
        Document doc = reader.read(new File(String.valueOf(file))); //读出xml文件
        String XML2TXT = doc.asXML();//将读出的xml转为String
        //将字符串转为InputStreamReader
        InputStreamReader XML2TXTInputStreamReader = new InputStreamReader(IOUtils.toInputStream(XML2TXT));
        InputStreamReader in = XML2TXTInputStreamReader;
        BufferedReader br = new BufferedReader(in);
        StringBuffer content = new StringBuffer();
        while ((s = br.readLine()) != null) {
            content = content.append(s);
        }
        return content.toString();
    }
}