ajax（二）——传值解析

package ajax01;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/** * ajax Asynchronous Javascript And XML 异步加载 *  * xstream jar包用来转化对象为xml字符串 也可以转换为json字符串 *  * 但是xstream转化json效率不高 常用json转换工具是Jackson * */@SuppressWarnings("serial")public class HelloAjaxServlet extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {doPost(req, resp);}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {System.out.println("ajax come");resp.getWriter().write("ajax coming");}}