Tomcat系列教材（六）- 启动Exception loading sessions from persistent storage 异常的处理办法

Tomcat系列教材（五）- 端口被占用了怎么办？

Tomcat系列教材（七）- 纯净版 Tomcat

工具版本兼容问题

Tomcat启动的时候会报一个Exception loading sessions from persistent storage异常，但是又不影响正常的业务。

纠

步骤 1 :

启动报错

edit 顶折

纠问

Tomcat启动的时候会报一个Exception loading sessions from persistent storage异常

该问题的原因是tomcat的session持久化机制引起的，tomcat这个功能本身的用意在于重启tomcat后保存之前的session，Tomcat会把session持久化在%TOMCAT%/work/Catalina/localhost/session.ser 这个文件里。但是因为tomcat非正常关闭，所以这个文件没有正确地结束(无EOF标记)

解决办法治标：只需要删除 session.ser文件即可。

解决办法治本：关闭tomcat的持久化功能，就能一劳永逸的解决这个问题。具体为修改conf下的server.xml文件。在项目的context间加入一句代码

重启tomcat以后再也不会报这个错误了。

	<Context path="/" docBase="D:\\project\\j2ee\\web" debug="0" reloadable="false" >
	    <Manager className="org.apache.catalina.session.PersistentManager" saveOnRestart="false"/>
	</Context>

Tomcat系列教材（五）- 端口被占用了怎么办？

Tomcat系列教材（七）- 纯净版 Tomcat

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问答区域

2019-11-25 为甚麽用Tomcat打开html 文件会乱码？

小南瓜奇奇

关于 J2EE-Tomcat-持久化异常的提问

为甚麽用Tomcat打开html 文件会乱码？

<mime-mapping> 
    <extension>htm</extension> 
    <mime-type>text/html;charset=utf-8</mime-type> 
</mime-mapping> 
<mime-mapping> 
    <extension>html</extension> 
    <mime-type>text/html;charset=utf-8</mime-type> 
</mime-mapping>

为甚麽用Tomcat打开html 文件会乱码？在wbe.xml文件中插入了<mime-mapping> 
    <extension>htm</extension> 
    <mime-type>text/html;charset=utf-8</mime-type> 
</mime-mapping> 
<mime-mapping> 
    <extension>html</extension> 
    <mime-type>text/html;charset=utf-8</mime-type> 
</mime-mapping>之后Tomcat就报错了，网页也打不开了，求大神解惑？

1 个答案

qweqrqasd
答案时间：2021-03-21

改编码

回答已经提交成功，正在审核。请于我的回答处查看回答记录，谢谢

2019-09-04 tomcat启动卡住不动了

下沙小熊猫

关于 J2EE-Tomcat-持久化异常的提问

求问，这是什么情况

04-Sep-2019 15:29:54.127 淇℃伅 [main] org.apache.coyote.AbstractProtocol.start 寮€濮嬪崗璁鐞嗗彞鏌刐"http-nio-8080"]
04-Sep-2019 15:29:54.138 淇℃伅 [main] org.apache.coyote.AbstractProtocol.start 寮€濮嬪崗璁鐞嗗彞鏌刐"ajp-nio-8009"]
04-Sep-2019 15:29:54.146 淇℃伅 [main] org.apache.catalina.startup.Catalina.start Server startup in [2,204] milliseconds

就停在这了

3 个答案

中二的腿毛君
答案时间：2020-09-04

你这是很乱码问题，改一下编码格式

yae_sakura
答案时间：2019-10-22

这情况叫乱码，请自行百度

3312862586
答案时间：2019-09-11

这不就是表示启动成功了吗。。(Server startup in [2,204] milliseconds)

回答已经提交成功，正在审核。请于我的回答处查看回答记录，谢谢

2017-10-25 新建的那种项目吗？？？

Bigone

关于 J2EE-Tomcat-持久化异常 -启动报错的提问

站长，我的serve.xml为什么没有你说的Context目录,虽然我的没问题。。。我就是想看一下。。。而且我webapp下的root目录好像自动删除了。。。里面的html好像也没了。。。。。。我之前是直接把html复制到root下的，跑成功了。。。。是不是只有自己新建的项目才会出现那个context目录，不然像就没有路径一说了？？？

2 个答案

canlook9419
答案时间：2017-11-14

我的Tomcat怎么有呢站长 E:\Program Files\apache-tomcat-6.0.41\conf 目录中的server.xml

代码超过 5行，点击查看

<?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,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!-- Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" at this level.
     Documentation at /docs/config/server.html
 -->
<Server port="8005" shutdown="SHUTDOWN">

  <!--APR library loader. Documentation at /docs/apr.html -->
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
  <Listener className="org.apache.catalina.core.JasperListener" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <!-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -->
  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

  <!-- Global JNDI resources
       Documentation at /docs/jndi-resources-howto.html
  -->
  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" Note:  A "Service" is not itself a "Container", 
       so you may not define subcomponents such as "Valves" at this level.
       Documentation at /docs/config/service.html
   -->
  <Service name="Catalina">
  
    <!--The connectors can use a shared executor, you can define one or more named thread pools-->
    <!--
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" 
        maxThreads="150" minSpareThreads="4"/>
    -->
    
    
    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL HTTP/1.1 Connector on port 8080
    -->
    <Connector port="80" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" />
    -->           
    <!-- Define a SSL HTTP/1.1 Connector on port 8443
         This connector uses the JSSE configuration, when using APR, the 
         connector should be using the OpenSSL style configuration
         described in the APR documentation -->
    <!--
    <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" />
    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />


    <!-- An Engine represents the entry point (within Catalina) that processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes them
         on to the appropriate Host (virtual host).
         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">         
    --> 
    <Engine name="Catalina" defaultHost="localhost">

      <!--For clustering, please take a look at documentation at:
          /docs/cluster-howto.html  (simple how to)
          /docs/config/cluster.html (reference documentation) -->
      <!--
      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
      -->        

      <!-- The request dumper valve dumps useful debugging information about
           the request and response data received and sent by Tomcat.
           Documentation at: /docs/config/valve.html -->
      <!--
      <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
      -->

      <!-- This Realm uses the UserDatabase configured in the global JNDI
           resources under the key "UserDatabase".  Any edits
           that are performed against this UserDatabase are immediately
           available for use by the Realm.  -->
      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
             resourceName="UserDatabase"/>

      <!-- Define the default virtual host
           Note: XML Schema validation will not work with Xerces 2.2.
       -->
      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true"
            xmlValidation="false" xmlNamespaceAware="false">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"  
               prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
        -->

      </Host>
    </Engine>
  </Service>
</Server>

Bigone
答案时间：2017-10-25

哦，是的。。。后面看到了。。。。

回答已经提交成功，正在审核。请于我的回答处查看回答记录，谢谢

2017-05-06 写错了？

提问之前请登陆

提问已经提交成功，正在审核。请于我的提问处查看提问记录，谢谢

关于 J2EE-Tomcat-持久化异常的提问

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