作为Docker的初学者，我正在构建一个简单的Web应用程序来注册/登录用户。生成映像时，在 Docker文件中收到以下错误HTTP状态500-内部服务器错误构建Web应用程序，并且我已链接了容器（tomcat和MySQL）。我还下载并添加了jar文件。不知道出了什么问题，目前在Google上找不到任何有用的答案。我的项目中的JSP文件都出现了相同的错误（一个用于登录，另一个用于注册）。<< / p>
Dockerfile（mysql）
FROM mysql
ENV MYSQL_ROOT_PASSWORD="vprodbpass"
ENV MYSQL_DATABASE="accounts"
ADD db_backup.sql docker-entrypoint-initdb.d/accountsdb.sql
Dockerfile（tomcat：8-jre8）
FROM tomcat:8-jre8
RUN rm -rf /usr/local/tomcat/webapps/*
COPY vprofile-v1.war /usr/local/tomcat/webapps/ROOT.war
EXPOSE 8080
CMD ["catalina.sh", "run"]
Docker映像
XXXXXXX@krushna:~/training/docker/vpdocker/vproapp$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
vproileapp latest 609ea8d2ddc3 24 seconds ago 481MB
vprofiledb latest 856d8b3af123 5 minutes ago 486MB
tomcat 8-jre8 78b258e36eed 2 weeks ago 463MB
mysql latest f991c20cb508 3 weeks ago 486MB
创建vrprodb容器
sudo docker run --name vprodb -e MYSQL_ROOT_PASSWORD=vprodbpass -p 3306:3306 -d vprofiledb
创建vproapp容器
sudo docker run --name vproapp --link vprodb:mysql -p 7070:8080 -d vprofileapp
正在运行的容器
XXXXXX@krushna:~/training/docker/vpdocker/vproapp$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
535ac19c6498 vproileapp "catalina.sh run" 11 seconds ago Up 7 seconds 0.0.0.0:7070->8080/tcp vproapp
40807697bd06 vprofiledb "docker-entrypoint.s…" 3 minutes ago Up 3 minutes 0.0.0.0:3306->3306/tcp, 33060/tcp vprodb
当我尝试托管它时显示此错误（localhost：7070）
HTTP状态500 –内部服务器错误
Type Exception Report
Message Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: Could not open connection; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: Could not open connection; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connection
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:48)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:120)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213)
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
Root Cause