Mysql + jsp +javabean+ jquery +ajax+servlet等的例子综合

package com.smg.domain; import java.io.IOException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class refreshNameServlet extends HttpServlet { private static class Student{ private int syear; private String sclass; private String sname; public Student(int syear, String sclass,String sname){ this.syear=syear; this.sclass=sclass; this.sname=sname; } } private static List<Student> student = new ArrayList<Student>(); @Override public void init() throws ServletException { student.add(new Student(2008,"class1","jerry")); student.add(new Student(2008,"class1","peter")); student.add(new Student(2008,"class1","tomcat")); student.add(new Student(2008,"class1","ketty")); student.add(new Student(2008,"class1","too")); student.add(new Student(2008,"class2","wuet")); student.add(new Student(2008,"class2","wute")); student.add(new Student(2008,"class2","atat")); student.add(new Student(2008,"class2","luews")); student.add(new Student(2008,"class2","Htnry Jordon")); student.add(new Student(2008,"class2","karta")); student.add(new Student(2008,"class1","LuSmitn")); } @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { processRequest(req,resp); } protected void processRequest(HttpServletRequest req, HttpServletResponse resp) throws ServletException,IOException { int syear =Integer.parseInt(req.getParameter("syear")); String sclass = req.getParameter("sclass"); StringBuffer results = new StringBuffer("<snames>");//生成snames标签 Student stud = null; for(Iterator it = student.iterator();it.hasNext();){ stud =(Student)it.next(); if(syear == stud.syear){ if(stud.sclass.equals(sclass)){//生成sname标签，不断追加sname值 results.append("<sname>"); results.append(stud.sname); results.append("</sname>"); } } } results.append("</snames>"); resp.setContentType ("text/xml"); resp.getWriter().println(results.toString()); } }