日期:2014-05-16 浏览次数:20351 次
现在以实现功能效果为目的,至于里面的原理,底层的细节暂不考虑,先学会咋么使用。细节,理论方面的在以后慢慢领悟。
直接上代码。这是一个jsp+servlet的简单实例。项目结构如下:
①开发工具eclipse,新建一个动态web项目,配置服务器。
②创建自定义的servlet类,这里创建TestServlet,代码如下:
public class TestServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { System.out.println("get into testServlet doPost method."); String name = req.getParameter("name"); String[] sports = req.getParameterValues("sport"); System.out.println("name:"+name); System.out.print("sport:"); for(String s : sports){ System.out.print(s+" "); } System.out.println(); System.out.println("---------------"); } }
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <servlet> <servlet-name>testServlet</servlet-name> <servlet-class>com.zhongqian.servlet.TestServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>testServlet</servlet-name> <url-pattern>/testServlet.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>fristPage</title> </head> <body> <form method="post" action="testServlet.do"> name:<input type="text" name="name"/><br/> favorite sport:<input type="checkbox" name="sport" value="basketball"/>basketball <input type="checkbox" name="sport" value="football"/>football <br/> <input type="submit" value="submit"/> </form> </body> </html>
点击提交后,在控制台打印:
ok,第一个实例运行成功。~