tomcat 报错 SEVERE: Could not contact [localhost:8005]. Tomcat may not be running

tomcat关闭时报错

• 查找java的安装目录并进入

root@49e9721650d5:/usr/bin# update-alternatives --display java
java - auto mode
  link best version is /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
  link currently points to /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
  link java is /usr/bin/java
  slave java.1.gz is /usr/share/man/man1/java.1.gz
/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java - priority 1081
  slave java.1.gz: /usr/lib/jvm/java-8-openjdk-amd64/jre/man/man1/java.1.gz
root@49e9721650d5:/usr/bin# cd /usr/lib/jvm/java-8-openjdk-amd64/jre

• 进入java的安装目录下的jdk/jre/lib/security 目录

root@49e9721650d5:/usr/lib/jvm/java-8-openjdk-amd64/jre/lib# cd security/
root@49e9721650d5:/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security# ls
blacklisted.certs  cacerts  java.policy  java.security  nss.cfg  policy
root@49e9721650d5:/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security# vi java.security 

通过vim 命令 “ /securerandom.source ”，查找这个位置，修改配置項

securerandom.source=file:/dev/./urandom

• 重启tomcat

root@49e9721650d5:/opt/tomcat/bin# ls
bootstrap.jar       catalina.bat  ciphers.bat  commons-daemon-native.tar.gz  configtest.bat  daemon.sh   digest.sh     makebase.sh  migrate.sh        setclasspath.sh  shutdown.sh  startup.sh       tomcat-native.tar.gz  tool-wrapper.sh  version.sh
catalina-tasks.xml  catalina.sh   ciphers.sh   commons-daemon.jar            configtest.sh   digest.bat  makebase.bat  migrate.bat  setclasspath.bat  shutdown.bat     startup.bat  tomcat-juli.jar  tool-wrapper.bat      version.bat
root@49e9721650d5:/opt/tomcat/bin# ./startup.sh 
Using CATALINA_BASE:   /opt/tomcat
Using CATALINA_HOME:   /opt/tomcat
Using CATALINA_TMPDIR: /opt/tomcat/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /opt/tomcat/bin/bootstrap.jar:/opt/tomcat/bin/tomcat-juli.jar

root@49e9721650d5:/opt/tomcat/bin# netstat -ln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN     
tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN     
tcp6       0      0 127.0.0.1:43033         :::*                    LISTEN     
tcp6       0      0 :::22                   :::*                    LISTEN     
tcp6       0      0 :::8080                 :::*                    LISTEN     
udp6       0      0 :::44266                :::*