tomcat中的manager页的403错误

tomcat增加了admin管理,配制了管理用户,http://localhost:8080/admin后出现管理页面,输入用户和口令后,结果页面就变成了

HTTP Status 403 - Access to the requested resource has been denied

$TOMCAT_HOME\webapps\manager\WEB-INF\web.xml
1。在<web-app>和</web-app>之间加入
<security-constraint>
<web-resource-collection>
<web-resource-name>Entire Application</web-resource-name>
<url-pattern>/*</url-pattern>
</web-resource-collection>
<auth-constraint>
<!-- NOTE: This role is not present in the default users file -->
<role-name>manager</role-name>
</auth-constraint>
</security-constraint>

<!-- Define the Login Configuration for this Application -->
<login-config>
<auth-method>BASIC</auth-method>
<realm-name>TEST ACCESS CONTROL</realm-name>
</login-config>
//如果存在就不用加了，注意下面的东东
2。然后在$TOMCAT_HOME/conf/tomcat-users.xml中加入

<tomcat-users>

<role rolename="manager"/>

<user username="admin" password="admin" roles="manager"/>

</tomcat-users>

roles的名字和web.xml中的相对应