Tomcat 8.5以后版本不能进入manager app

tomcat 8.5 及以后版本不能直接使用manager app，而且也不同于8.0版本的问题，在8.0版本中，点击manager app会提醒用户登录信息，而8.5版本之后不再提醒，而且错误码为403.

在$CATALINA_HOME/webapps/manager/META-INF/context.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,
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-->
<Context antiResourceLocking="false" privileged="true" >
    <Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
  <Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/>
</Context>

在配置文件的结尾处，上下文只允许了 本机地址访问

所以我们要注释掉。

注释完之后执行catalina.sh stop，等待5秒之后，在执行catalina.sh start

这时候再次访问manager app

这个时候会提醒让我们使用用户名和密码登录

我们只需要在$CATALINA_HOME/conf/tomcat-users.xml中添加如下信息

<role rolename="manager-gui"/>

  <user username="tomcat" password="redhat" roles="manager-gui"/>

即可实现使用tomcat用户以及自定义的密码登录manager app