@Override
    public void flush() throws IOException {
        if (null != baos) {
            baos.flush();
            if (baos.size() > 0) {
                if (charset == null)
                    sb.append(new String(baos.toByteArray()));
                else
                    sb.append(new String(baos.toByteArray(), charset));
                baos.reset();
            }
        }
    }
@Override
    public void flush() throws IOException {
        if (null != baos) {
            baos.flush();
            if (baos.size() > 0) {
                if (charset == null)
                    sb.append(new String(baos.toByteArray()));
                else
                    sb.append(new String(baos.toByteArray(), charset));
                baos.reset();
            }
        }
    }
@ Override public void flush ( ) throws IOException { if ( null != baos ) { baos . flush ( ) ; if ( baos . size ( ) > 0 ) { if ( charset == null ) sb . append ( new String ( baos . toByteArray ( ) ) ) ; else sb . append ( new String ( baos . toByteArray ( ) , charset ) ) ; baos . reset ( ) ; } } }
使用StringBuilder前,务必调用
使用StringBuilder前 务必调用