java通过post方式发送接收xml信息
转自：https://blog.csdn.net/bluetjs/article/details/36899101
1.设置响应格式：
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response.setContentType(
“text/xml”);
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if(request.getMethod()==
null || !request.getMethod().equalsIgnoreCase(
“post”)){
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return
null;
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}
2.发送xml：
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/**
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* 响应xml
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* @param response
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* @param content
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*/
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public static void responseContent(HttpServletResponse response,String content){
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try {
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//把xml字符串写入响应
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byte[] xmlData = content.getBytes();
-
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response.setContentLength(xmlData.length);
-
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ServletOutputStream os = response.getOutputStream();
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os.write(xmlData);
-
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os.flush();
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os.close();
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}
catch (IOException e) {
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e.printStackTrace();
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}
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}
3.接收xml：
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//解析对方发来的xml数据
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DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
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DocumentBuilder db = dbf.newDocumentBuilder();
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Document doc = db.parse(request.getInputStream());
4.获取xml中某一节点内容：
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public static String getValueByTagName(Document doc, String tagName){
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if(doc ==
null || StringUtil.isNull(tagName)){
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return
"";
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}
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NodeList pl = doc.getElementsByTagName(tagName);
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if(pl !=
null && pl.getLength() >
0){
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return StringUtil.dealParam(StringUtil.convertNull( pl.item(
0).getTextContent()));
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}
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return
"";
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}
5.将xml原样转成字符串：
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//XML转字符串 原样取出
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public static String getXmlString(Document doc){
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TransformerFactory tf = TransformerFactory.newInstance();
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try {
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Transformer t = tf.newTransformer();
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t.setOutputProperty(OutputKeys.ENCODING,
"UTF-8");
//解决中文问题，试过用GBK不行
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t.setOutputProperty(OutputKeys.METHOD,
"html");
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t.setOutputProperty(OutputKeys.VERSION,
"4.0");
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t.setOutputProperty(OutputKeys.INDENT,
"no");
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ByteArrayOutputStream bos =
new ByteArrayOutputStream();
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t.transform(
new DOMSource(doc),
new StreamResult(bos));
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return bos.toString();
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}
catch (TransformerConfigurationException e) {
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e.printStackTrace();
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}
catch (TransformerException e) {
-
e.printStackTrace();
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}
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return
"";
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}