IDEA项目中前端不能获取前端分类图片

<?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">

  <Listener className="org.apache.catalina.startup.VersionLoggerListener"/>

  <!-- Security listener. Documentation at /docs/config/listeners.html

  <Listener className="org.apache.catalina.security.SecurityListener" />

  -->

  <!--APR library loader. Documentation at /docs/apr.html -->

  <Listener SSLEngine="on" className="org.apache.catalina.core.AprLifecycleListener"/>

  <!-- Prevent memory leaks due to use of particular java/javax APIs-->

  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>

  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>

  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/>

  <!-- 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 auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users.xml" type="org.apache.catalina.UserDatabase"/>

  </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

         Java AJP  Connector: /docs/config/ajp.html

         APR (HTTP/AJP) Connector: /docs/apr.html

         Define a non-SSL/TLS HTTP/1.1 Connector on port 8080

    -->

    <Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>

    <!-- A "Connector" using the shared thread pool-->

    <!--

    <Connector executor="tomcatThreadPool"

               port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443

         This connector uses the NIO implementation. The default

         SSLImplementation will depend on the presence of the APR/native

         library and the useOpenSSL attribute of the

         AprLifecycleListener.

         Either JSSE or OpenSSL style configuration may be used regardless of

         the SSLImplementation selected. JSSE style configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"

               maxThreads="150" SSLEnabled="true">

        <SSLHostConfig>

            <Certificate certificateKeystoreFile="conf/localhost-rsa.jks"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2

         This connector uses the APR/native implementation which always uses

         OpenSSL for TLS.

         Either JSSE or OpenSSL style configuration may be used. OpenSSL style

         configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"

               maxThreads="150" SSLEnabled="true" >

        <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />

        <SSLHostConfig>

            <Certificate certificateKeyFile="conf/localhost-rsa-key.pem"

                         certificateFile="conf/localhost-rsa-cert.pem"

                         certificateChainFile="conf/localhost-rsa-chain.pem"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->

    <!--

    <Connector protocol="AJP/1.3"

               address="::1"

               port="8009"

               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 defaultHost="localhost" name="Catalina">

      <!--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"/>

      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords

           via a brute-force attack -->

      <Realm className="org.apache.catalina.realm.LockOutRealm">

        <!-- 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"/>

      </Realm>

      <Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="true">

        <!-- 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

             Note: The pattern used is equivalent to using pattern="common" -->

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" pattern="%h %l %u %t &quot;%r&quot; %s %b" prefix="localhost_access_log" suffix=".txt"/>

      <Context docBase="D:\apache-tomcat-8.5.55\webapps\message" path="/message" reloadable="true" source="org.eclipse.jst.jee.server:message"/>

        <Context docBase="D:\webimages\projectdev\image\upload" path="/upload" />

      </Host>

    </Engine>

  </Service>

</Server>

使用IDEA做的项目，前台不能获取图片

本机路径如下

数据库中的路径

​