javaWeb程序
FirstWeb :
index.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>First Web</title>
</head>
<body>
<br>
<h1>演示第一个比较正式的Web项目</h1>
<a href="jsps/a.jsp">转到另一个页面---超链接地址1--OK</a>
<br>
<a href="/FirstWeb/jsps/a.jsp">转到另一个页面---超链接地址2--OK</a>
<br>
<hr />
<a href="one?name=Jack&age=20">访问后台的OneServlet这个服务--地址不带斜杠</a>
<br />
<a href="/FirstWeb/one?name=张三">访问后台的OneServlet这个服务--地址带斜杠</a>
<!-- 以后我们开发时要传输中文，建议全部采用post表单，尽量不要使用get方式 -->
<form action="one" method="post">
name:<input type="text" name="name" /> <input type="submit" />
</form>
</body>
</html>
a.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>第二个页面</title>
</head>
<body>
<h2>第二个页面</h2>
<h2>第二个页面</h2>
<h2>第二个页面</h2>
<h2>第二个页面</h2>
<a href="b.jsp">转到第三个页面---超链接地址1--OK</a>
<br>
<a href="jsps/b.jsp">转到第三个页面---超链接地址1--WA</a>
<br>
<a href="/FirstWeb/jsps/b.jsp">转到第三个页面---超链接地址2--OK</a>
<br>
</body>
</html>
b.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>第三个页面</title>
</head>
<body>
<h2>第三个页面</h2>
<h2>第三个页面</h2>
<h2>第三个页面</h2>
<h2>第三个页面</h2>
</body>
</html>
OneServlet:
package cn.hncu.servlets;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cn.hncu.abc.HelloWorld;
public class OneServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// 设置请求信息获取的编码
req.setCharacterEncoding("utf-8");
String name = req.getParameter("name");
System.out.println(name);
// 设置响应时的编码，同时也告诉浏览器我的页面格式和编码
resp.setContentType("text/html;charset=utf-8");
PrintWriter out = resp.getWriter();
out.println("Hello," + name);
out.println("<br/>");
HelloWorld obj = new HelloWorld();
obj.t();
out.println(obj.getInfo());
}
}
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<display-name></display-name>
<servlet>
<servlet-name>OneServlet</servlet-name>
<servlet-class>cn.hncu.servlets.OneServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>OneServlet</servlet-name>
<url-pattern>/one</url-pattern>
</servlet-mapping>
</web-app>