《JSP》 <%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!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="login " name="form1" method="post" >
<center> 用户名: <input type="text" name="username">
<input type="submit" value="OK"> </center> </form>
</body>
</html> <servlet中>
package login;
import javax.servlet.*;
import java.io.*;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.*; /**
* Servlet implementation class login
*/
public class login extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public login() {
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
System.out.print("ffff");
response.sendRedirect("index.jsp");
} /**
* @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);
} }
<web.xml>
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>
log </display-name>
<servlet>
<description>
</description>
<display-name>
login </display-name>
<servlet-name>login </servlet-name>
<servlet-class>
login.login </servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>login </servlet-name>
<url-pattern>/login </url-pattern>
</servlet-mapping>
<welcome-file-list> <welcome-file>index.jsp </welcome-file> </welcome-file-list>
</web-app> 为什么 我提交后,不去 我的servlet的doGet里面!!!!!!!!!!!!!!!!!!!!
pageEncoding="utf-8"%>
<!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="login " name="form1" method="post" >
<center> 用户名: <input type="text" name="username">
<input type="submit" value="OK"> </center> </form>
</body>
</html> <servlet中>
package login;
import javax.servlet.*;
import java.io.*;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.*; /**
* Servlet implementation class login
*/
public class login extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public login() {
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
System.out.print("ffff");
response.sendRedirect("index.jsp");
} /**
* @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);
} }
<web.xml>
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>
log </display-name>
<servlet>
<description>
</description>
<display-name>
login </display-name>
<servlet-name>login </servlet-name>
<servlet-class>
login.login </servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>login </servlet-name>
<url-pattern>/login </url-pattern>
</servlet-mapping>
<welcome-file-list> <welcome-file>index.jsp </welcome-file> </welcome-file-list>
</web-app> 为什么 我提交后,不去 我的servlet的doGet里面!!!!!!!!!!!!!!!!!!!!
报没报错 ?
你是用 post方式提交的数据,所以进的是servlet的doPost
doGet(...);了,所以不是这个原因。分析了一下,你的应该是提交的路径问题
action="login "去掉这个空格试一下
如果不行,就要从配置上找原因了