1.利用myecilpse建立一个web项目
2.导入需要的包：
commons-beanutils.jar
commons-collections-3.1.jar
commons-lang-2.3.jar
commons-logging-1.1.jar
ezmorph-1.0.6.jar
json-lib-2.1.jar
json-lib.2.2.2-jdk15.jar
3.建立index.jsp页面（记得导入jquery包）
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>My JSP 'index.jsp' starting page
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4.建立Servlet
public class HelloServlet extends HttpServlet{ public HelloServlet() { super(); } public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("执行了-------------"); String name = (String)request.getParameter("name"); String password = (String)request.getParameter("password"); System.out.println(name + " ," + password); student stu = new student(); stu.setAge(18); stu.setName("zhangsan"); JSONArray arr=JSONArray.fromObject(stu); PrintWriter out = response.getWriter(); out.println(arr.toString()); out.flush(); out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } public void init() throws ServletException { }} 5.web.xml配置文件
HelloServlet com.milk.servlet.HelloServlet HelloServlet /HelloServlet index.jsp