SAXBuilder builder = new SAXBuilder(false);
InputStream inputStream = null;
try {
byte[] b = fileName.getBytes("utf-8");//处理乱码问题
inputStream = new ByteArrayInputStream(b);
Document document = builder.build(inputStream);
Element rootElement = document.getRootElement();
List list1 = rootElement.getChildren();
for (int i = 0; i < list1.size(); i++) {
Element child = (Element) list1.get(i);
List list2 = child.getChildren();
for (int j = 0; j < list2.size(); j++) {
Element children = (Element) list2.get(j);
List list3 = children.getChildren();
for (int k = 0; k < list3.size(); k++) {
Element childrens = (Element) list3.get(k);
if (childrens.getName()!=null&&childrens.getName().equals("Error_msg")) {
//获取头为中的信息
voucherString = new String(childrens.getText().getBytes("ISO-8859-1"),"utf-8");
}
}
}
}