tomcat部署war包不成功解决方法

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

403 Access Denied
 
You are not authorized to view this page.
 
By default the Manager is only accessible from a browser running on the same machine as Tomcat. If you wish to modify this restriction, you'll need to edit the Manager's context.xml file.
 
If you have already configured the Manager application to allow access and you have used your browsers back button, used a saved book-mark or similar then you may have triggered the cross-site request forgery (CSRF) protection that has been enabled for the HTML interface of the Manager application. You will need to reset this protection by returning to the main Manager page. Once you return to this page, you will be able to continue using the Manager application's HTML interface normally. If you continue to see this access denied message, check that you have the necessary permissions to access this application.
 
If you have not changed any configuration files, please examine the file conf/tomcat-users.xml in your installation. That file must contain the credentials to let you use this webapp.
 
For example, to add the manager-gui role to a user named tomcat with a password of s3cret, add the following to the config file listed above

<Context antiResourceLocking="false" privileged="true" >
  <!--注释这里，去除对访问权限的设置
    <Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
         -->
</Context>