Java BufferedReader下载网络文件

使用java BufferedReader从网络中读取文件到本地，可以存入数据库，也可以保存到本地

java代码

1.下载网络文件内容转换成StringBuffer

/**                         从网络地址url下载文件读成字符串 * @param downloadUrl       文件的网络地址 * @return */public static StringBuffer downloadFromUrl(String downloadUrl) {    BufferedReader reader = null;    StringBuffer stringBuffer = new StringBuffer();    String line;    try {        URL url = new URL(downloadUrl);        reader = new BufferedReader(new   InputStreamReader(url.openStream()));        while ((line = reader.readLine()) != null) {            stringBuffer.append(line);        }        return stringBuffer;    } catch (Exception e) {        e.printStackTrace();    } finally {        try {            if (reader != null) {                reader.close();            }        } catch (Exception e) {            e.printStackTrace();        }    }    return null;}

2.将字符串保存成指定路径的文件

public static void saveAsFile(String content,String fileName) throws FileNotFoundException {    File file=new File(fileName);    PrintStream ps =new PrintStream(new FileOutputStream(file));    ps.append(content);    ps.flush();}