public static void readBySax(File file, ContentHandler contentHandler) {
		InputStream in = null;
		try {
			in = FileUtil.getInputStream(file);
			readBySax(new InputSource(in), contentHandler);
		} finally {
			IoUtil.close(in);
		}
	}
@Test
	public void readBySaxTest(){
		final Set<String> eles = CollUtil.newHashSet(
				"returnsms", "returnstatus", "message", "remainpoint", "taskID", "successCounts");
		XmlUtil.readBySax(ResourceUtil.getStream("test.xml"), new DefaultHandler(){
			@Override
			public void startElement(final String uri, final String localName, final String qName, final Attributes attributes) {
				assertTrue(eles.contains(localName));
			}
		});
	}