eclipse servlet简单的用户登录
2017-07-02 11:59
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servlet程序
package test;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class first_servlet
*/
@WebServlet("/first_servlet")
public class first_servlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public first_servlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String name=request.getParameter("inputname");
String pwd=request.getParameter("inputpwd");
if(name!=null&&name.equals("martin")) {
response.sendRedirect("http://blog.csdn.net/martind");
}else {
response.sendRedirect("https://www.baidu.com");
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
登录界面
xml配置：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<servlet>
<servlet-name>first_servlet</servlet-name>
<servlet-class>test.first_servlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>first_servlet</servlet-name>
<url-pattern>/first</url-pattern>
</servlet-mapping>
</web-app>
package test;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class first_servlet
*/
@WebServlet("/first_servlet")
public class first_servlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public first_servlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String name=request.getParameter("inputname");
String pwd=request.getParameter("inputpwd");
if(name!=null&&name.equals("martin")) {
response.sendRedirect("http://blog.csdn.net/martind");
}else {
response.sendRedirect("https://www.baidu.com");
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
登录界面
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>my first bootstrap</title> <!-- 最新版本的 Bootstrap 核心 CSS 文件 --> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous"> <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> </head> <body> <div class="container"> <h1 class="page-header col-md-offset-4">用户登录</h1> <form action="first" method="post" class="form-horizontal"> <div class="form-group"> <label for="inputname" class="col-md-4 control-label">用户名 <span class="glyphicon glyphicon-user"></span> </label> <div class="col-md-4"> <input type="text" class="form-control" name="inputname" placeholder="请输入用户名" /> </div> </div> <div class="form-group"> <label for="inputpwd" class="col-md-4 control-label">密码 <span class="glyphicon glyphicon-lock"></span> </label> <div class="col-md-4"> <input type="password" class="form-control" name="inputpwd" placeholder="请输入密码" /> </div> </div> <div class="form-group"> <div class="col-md-offset-5"> <button class="btn btn-primary">注册</button> <button class="btn btn-primary">登录</button> </div> </div> </form> </div> </body> </html>
xml配置：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<servlet>
<servlet-name>first_servlet</servlet-name>
<servlet-class>test.first_servlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>first_servlet</servlet-name>
<url-pattern>/first</url-pattern>
</servlet-mapping>
</web-app>
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