In tomcat can not complete the verification Great God help hope
package com.txj.servlet.demo;
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 {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
// 中文乱码
res.setContentType("text/html;charset=gbk");
PrintWriter pw = res.getWriter();
pw.println("<html>");
pw.println("<body>");
pw.println("<h1>登录界面</h1>");
pw.println("<form action=LoginCL method='post'>");
pw.println("用户名:<input type=text name=username><br>");
pw.println("密码:<input type=password name=passwd><br>");
pw.println("<input type=submit value=login><br>");
pw.println("</form>");
pw.println("</body>");
pw.println("</html>");
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
this.doGet(req, res);
}
}
package com.txj.servlet.demo;
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 LoginCL extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
// 接收用户名和密码
String u = req.getParameter("username").trim();
String p = req.getParameter("passwd").trim();
// 验证
if (u.equals("txj") && p.equals("123")) {
// 合法E
// res.sendRedirect("welcome");//你要的servlet的url
res.sendRedirect("welcome1");
} else {
// 不合法,跳转
res.sendRedirect("login1");// 你要的servlet的url
}
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
this.doGet(req, res);
}
}
package com.txj.servlet.demo;
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 Welcome extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
PrintWriter pw = res.getWriter();
pw.println("Welcome to my home !!!");
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
this.doGet(req, res);
}
}
<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1"
metadata-complete="true">
<display-name>Tomcat Manager Application</display-name>
<description>
A scriptable management web application for the Tomcat Web Server;
Manager lets you view, load/unload/etc particular web applications.
</description>
<servlet>
<!--give servlet name 1 -->
<servlet-name>login</servlet-name>
<!--servlet track,(bao name and class name)-->
<servlet-class>com.txj.servlet.demo.Login</servlet-class>
</servlet>
<!-- Define the Manager Servlet Mapping -->
<servlet-mapping>
<servlet-name>login</servlet-name>
<!--on browser ,intput servlet's url-->
<url-pattern>/login</url-pattern>
</servlet-mapping>
<servlet>
<!--give servlet name 2 -->
<servlet-name>logincl</servlet-name>
<!--servlet track,(bao name and class name)-->
<servlet-class>com.txj.servlet.demo.LoginCL</servlet-class>
</servlet>
<!-- Define the Manager Servlet Mapping -->
<servlet-mapping>
<servlet-name>logincl</servlet-name>
<!--on browser ,intput servlet's url-->
<url-pattern>/logincl</url-pattern>
</servlet-mapping>
<servlet>
<!--give servlet name 3 -->
<servlet-name>welcome</servlet-name>
<!--servlet track,(bao name and class name)-->
<servlet-class>com.txj.servlet.demo.Welcome</servlet-class>
</servlet>
<!-- Define the Manager Servlet Mapping -->
<servlet-mapping>
<servlet-name>welcome</servlet-name>
<!--on browser ,intput servlet's url-->
<url-pattern>/welcome</url-pattern>
</servlet-mapping>
</web-app>
------ Solution ------------------------------------- -------
breakpoint debugging is not already accessible to the user name and password ?
------ Solution ---------------------------------------- ----
------ Solution ------------------------------------ --------
if (u.equals("txj") && p.equals("123")) {
// 合法E
// res.sendRedirect("welcome");//你要的servlet的url
res.sendRedirect("welcome1");
} else {
// 不合法,跳转
res.sendRedirect("login1");// 你要的servlet的url
} Here is welcom1 and login1
your web.xml inside it than simply the corresponding url-pattern, the landlord to check the configuration files , java class jumps and configuration files do not match
------ Solution --- -----------------------------------------
pw.println ("
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