type Exception report
message install failed!
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: install failed!
com.jeecms.cms.InstallServlet.doPost(InstallServlet.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)
com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:341)
com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2189)
com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2222)
com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2017)
com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779)
com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
java.sql.DriverManager.getConnection(DriverManager.java:664)
java.sql.DriverManager.getConnection(DriverManager.java:270)
com.jeecms.cms.Install.getConn(Install.java:40)
com.jeecms.cms.Install.changeDbCharset(Install.java:77)
com.jeecms.cms.InstallServlet.doPost(InstallServlet.java:41)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
java.net.ConnectException: 连接超时 (Connection timed out)
java.net.PlainSocketImpl.socketConnect(Native Method)
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
java.net.Socket.connect(Socket.java:589)
com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)
com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300)
com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2189)
com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2222)
com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2017)
com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:779)
com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
java.sql.DriverManager.getConnection(DriverManager.java:664)
java.sql.DriverManager.getConnection(DriverManager.java:270)
com.jeecms.cms.Install.getConn(Install.java:40)
com.jeecms.cms.Install.changeDbCharset(Install.java:77)
com.jeecms.cms.InstallServlet.doPost(InstallServlet.java:41)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.82 logs. |
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