基本认证

Question

我想通过匹配数据库中的用户名和密码条目在我的应用程序中引入基本表单身份验证。 我不想在我的web.xml文件中写入用户名和密码，我希望它是我的数据库中的动态。

这是我的web.xml文件

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>Security</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>dispatcher</param-name>
    <param-value>applicationContext.xml</param-value>
  </context-param>


    <security-role>
  <description>SumitAuthentication</description>
  <role-name>User</role-name>
  </security-role>

  <security-constraint>
  <web-resource-collection>
  <web-resource-name>SumitWebResource</web-resource-name>
  <url-pattern>/</url-pattern>
  </web-resource-collection>

  <auth-constraint>
  <role-name>User</role-name>
  </auth-constraint>
  <user-data-constraint><transport-guarantee>NONE</transport-guarantee></user-data-constraint>
  </security-constraint>
  <login-config><auth-method>BASIC</auth-method></login-config>
</web-app>

这是我的tomcat-users.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  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.
-->
<tomcat-users>



  <role rolename="tomcat"/>
  <role rolename="User"/>
  <user username="sumit" password="tomcat" roles="User"/>
  <user username="both" password="tomcat" roles="tomcat,role1"/>
  <user username="role1" password="tomcat" roles="role1"/>

</tomcat-users>