12-Sep-2017 16:21:27.977 严重 [main] org.apache.catalina.realm.UserDatabaseRealm.startInternal Exception looking up UserDatabase under key [UserDatabase]
javax.naming.NamingException: 与元素类型 "user" 相关联的 "password" 属性值不能包含 '<' 字符。
at org.apache.naming.NamingContext.lookup(NamingContext.java:856)
at org.apache.naming.NamingContext.lookup(NamingContext.java:173)
at org.apache.catalina.realm.UserDatabaseRealm.startInternal(UserDatabaseRealm.java:213)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.realm.CombinedRealm.startInternal(CombinedRealm.java:245)
at org.apache.catalina.realm.LockOutRealm.startInternal(LockOutRealm.java:115)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:934)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:657)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:355)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)
12-Sep-2017 16:21:27.978 严重 [main] org.apache.catalina.realm.CombinedRealm.startInternal Failed to start [org.apache.catalina.realm.UserDatabaseRealm] realm
org.apache.catalina.LifecycleException: No UserDatabase component found under key [UserDatabase]
at org.apache.catalina.realm.UserDatabaseRealm.startInternal(UserDatabaseRealm.java:223)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.realm.CombinedRealm.startInternal(CombinedRealm.java:245)
at org.apache.catalina.realm.LockOutRealm.startInternal(LockOutRealm.java:115)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:934)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:657)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:355)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)
哪里的问题呢？看不明白
检查数据库里的值 就发现了
"javax.naming.NamingException: 与元素类型 "user" 相关联的 "password" 属性值不能包含 '<' 字符。"
这里说得很明白了，你的user对象中的password属性里面包含了'<'字符，而你的特性中不支持。你看看你是在啥环境中使用报这个错的。贴图出来。
password中有特殊字符吧，特殊字要转换
UserDatabase 这个类？与元素类型 "user" 相关联的 "password" 属性值不能包含 '<' 字符。---就是多了个‘’<‘’
估计是你的password的input框多了一个“<”符号
"javax.naming.NamingException: 与元素类型 "user" 相关联的 "password" 属性值不能包含 '<' 字符。"
看看是不是你访问数据库操作 那块写的问题
查看user或者password中是否包含<
特殊字符不能用做密码里？
是tomcat安装出错了
看哈你的tomcat-users.xml。里面的