最新JAXB解析XML教程

package com.neusoft.jaxb.action; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.xml.bind.JAXBException; import com.neusoft.jaxb.bean.ObjectFactory; import com.neusoft.jaxb.bean.Request; import com.neusoft.jaxb.util.JaxbTool; public class XmlManager extends HttpServlet{ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ObjectFactory factory = new ObjectFactory(); /** * 解析XML */ Request req = factory.createRequest(); try { InputStream inStream = request.getInputStream(); req = (Request) JaxbTool.readXml(inStream, Request.class); String ac = req.getParam().getAccount(); System.out.println(ac); } catch (JAXBException e) { e.printStackTrace(); } /** * 将JAXB对象转成XML后写出 * Response res = factory.createResponse(); res.setCode("侯振宇"); try { JaxbTool.writeXml(response, res); } catch (JAXBException e) { e.printStackTrace(); } */ } /** * * * 以下模拟XML请求 * * */ public static void main(String[] args) { String path = "http://localhost:8080/jaxbTest/jaxbAction"; String xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?><request><param><account>侯振宇哈哈</account></param></request>"; String encoding = "UTF-8"; try { postXml(path, xml, encoding); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } private static final long serialVersionUID = -2756643802048238503L; @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } /** * 发送xml数据 * @param path 请求地址 * @param xml xml数据 * @param encoding 编码 * @return * @throws Exception */ public static byte[] postXml(String path, String xml, String encoding) throws Exception{ byte[] data = xml.getBytes(encoding); URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection)url.openConnection(); conn.setRequestMethod("POST"); conn.setDoOutput(true); conn.setRequestProperty("Content-Type", "text/xml; charset="+ encoding); conn.setRequestProperty("Content-Length", String.valueOf(data.length)); conn.setConnectTimeout(5 * 1000); OutputStream outStream = conn.getOutputStream(); outStream.write(data); outStream.flush(); outStream.close(); if(conn.getResponseCode()==200){ return readStream(conn.getInputStream()); } return null; } /** * 读取流 * @param inStream * @return 字节数组 * @throws Exception */ public static byte[] readStream(InputStream inStream) throws Exception{ ByteArrayOutputStream outSteam = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = -1; while( (len=inStream.read(buffer)) != -1){ outSteam.write(buffer, 0, len); } outSteam.close(); inStream.close(); return outSteam.toByteArray(); } }