我是新手,我做了一个简单的登录界面。HTML页面打开后,想SERVLET传值,可是总提示 The requested resource (/servlet/bean/Login) is not available.
我把文件留到下面:
HTML页面<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="bean/Login" name = "Login" method = "post">
<center><input type = "text" name = "username" value = "">
<input type = "password" name = "passwd" value = "">
<input type = "submit" name = "" value = "get">
</center>
</form></body>
</html>
SERVLET代码:package bean;
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;public class Login 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 {
String username = req.getParameter("username");
String passwd = req.getParameter("passwd");
PrintWriter out = resp.getWriter();
if(username.length() != 0 || passwd.length() != 0){
out.println("<html>");
out.println("<body>欢迎" + username);
out.println("</body>");
out.println("</html>");
}
}
}
XML代码:
<?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_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>servlet</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>bean.Login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>/Loginpage</url-pattern>
</servlet-mapping>
</web-app>
谢谢高人了,帮我看看为什么总是不行
我把文件留到下面:
HTML页面<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="bean/Login" name = "Login" method = "post">
<center><input type = "text" name = "username" value = "">
<input type = "password" name = "passwd" value = "">
<input type = "submit" name = "" value = "get">
</center>
</form></body>
</html>
SERVLET代码:package bean;
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;public class Login 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 {
String username = req.getParameter("username");
String passwd = req.getParameter("passwd");
PrintWriter out = resp.getWriter();
if(username.length() != 0 || passwd.length() != 0){
out.println("<html>");
out.println("<body>欢迎" + username);
out.println("</body>");
out.println("</html>");
}
}
}
XML代码:
<?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_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>servlet</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>bean.Login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>/Loginpage</url-pattern>
</servlet-mapping>
</web-app>
谢谢高人了,帮我看看为什么总是不行
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"/"掉就可以了.