http://blog.csdn.net/asdeak/article/details/1879284
很多个tomcat因为在缺少 " <role rolename="manager"/>"这个角色所以打开不了tomcat的manager
应该把配置文件修改如下tomcat-user.xml
<?xml version='1.0' encoding='utf-8'?>
<tomcat-users>
<role rolename="tomcat"/>
<role rolename="role1"/>
<role rolename="manager"/>
<user username="tomcat" password="tomcat" roles="tomcat,manager"/>
<user username="role1" password="tomcat" roles="role1"/>
<user username="both" password="tomcat" roles="tomcat,role1"/>
</tomcat-users>