java.net.NoRouteToHostException: No route to host: connect

电玩女神 2022-05-18 00:51 295阅读 0赞

问题:
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
java.net.NoRouteToHostException: No route to host: connect

问题详情：

  1. HTTP Status 500 – Internal Server Error
  2. Type Exception Report
  4. Description The server encountered an unexpected condition that prevented it from fulfilling the request.
  6. Exception
  8. org.apache.ibatis.exceptions.PersistenceException: 
  9. ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  11. The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
  12. ### The error may exist in CompanyDetail.xml
  13. ### The error may involve CompanyDetail.getTotalCompanyDetail
  14. ### The error occurred while executing a query
  15. ### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  17. The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
  18.     org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
  19.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150)
  20.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
  21.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:136)
  22.     top.hsocode.dao.CompanyDetailDao.getTotalCompanyDetail(CompanyDetailDao.java:23)
  23.     top.hsocode.service.CompanyDetailService.getTotalCompanyDetail(CompanyDetailService.java:11)
  24.     top.hsocode.servlet.CompanyDetailServlet.doGet(CompanyDetailServlet.java:22)
  25.     javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
  26.     javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
  27.     org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
  28. Root Cause
  30. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  32. The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
  33.     sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  34.     sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
  35.     sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  36.     java.lang.reflect.Constructor.newInstance(Constructor.java:423)
  37.     com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
  38.     com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:981)
  39.     com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:339)
  40.     com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253)
  41.     com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)
  42.     com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)
  43.     com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795)
  44.     com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
  45.     sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  46.     sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
  47.     sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  48.     java.lang.reflect.Constructor.newInstance(Constructor.java:423)
  49.     com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
  50.     com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
  51.     com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)
  52.     java.sql.DriverManager.getConnection(DriverManager.java:664)
  53.     java.sql.DriverManager.getConnection(DriverManager.java:208)
  54.     org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:201)
  55.     org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:196)
  56.     org.apache.ibatis.datasource.unpooled.UnpooledDataSource.getConnection(UnpooledDataSource.java:93)
  57.     org.apache.ibatis.transaction.jdbc.JdbcTransaction.openConnection(JdbcTransaction.java:138)
  58.     org.apache.ibatis.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:60)
  59.     org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336)
  60.     org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)
  61.     org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62)
  62.     org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
  63.     org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
  64.     org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
  65.     org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
  66.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
  67.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
  68.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:136)
  69.     top.hsocode.dao.CompanyDetailDao.getTotalCompanyDetail(CompanyDetailDao.java:23)
  70.     top.hsocode.service.CompanyDetailService.getTotalCompanyDetail(CompanyDetailService.java:11)
  71.     top.hsocode.servlet.CompanyDetailServlet.doGet(CompanyDetailServlet.java:22)
  72.     javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
  73.     javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
  74.     org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
  75. Root Cause
  77. java.net.NoRouteToHostException: No route to host: connect
  78.     java.net.DualStackPlainSocketImpl.connect0(Native Method)
  79.     java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
  80.     java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
  81.     java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
  82.     java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
  83.     java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
  84.     java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
  85.     java.net.Socket.connect(Socket.java:589)
  86.     com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)
  87.     com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:298)
  88.     com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253)
  89.     com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)
  90.     com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)
  91.     com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795)
  92.     com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
  93.     sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  94.     sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
  95.     sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  96.     java.lang.reflect.Constructor.newInstance(Constructor.java:423)
  97.     com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
  98.     com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
  99.     com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)
  100.     java.sql.DriverManager.getConnection(DriverManager.java:664)
  101.     java.sql.DriverManager.getConnection(DriverManager.java:208)
  102.     org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:201)
  103.     org.apache.ibatis.datasource.unpooled.UnpooledDataSource.doGetConnection(UnpooledDataSource.java:196)
  104.     org.apache.ibatis.datasource.unpooled.UnpooledDataSource.getConnection(UnpooledDataSource.java:93)
  105.     org.apache.ibatis.transaction.jdbc.JdbcTransaction.openConnection(JdbcTransaction.java:138)
  106.     org.apache.ibatis.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:60)
  107.     org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336)
  108.     org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)
  109.     org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62)
  110.     org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
  111.     org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
  112.     org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
  113.     org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
  114.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
  115.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
  116.     org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:136)
  117.     top.hsocode.dao.CompanyDetailDao.getTotalCompanyDetail(CompanyDetailDao.java:23)
  118.     top.hsocode.service.CompanyDetailService.getTotalCompanyDetail(CompanyDetailService.java:11)
  119.     top.hsocode.servlet.CompanyDetailServlet.doGet(CompanyDetailServlet.java:22)
  120.     javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
  121.     javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
  122.     org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
  123. Note The full stack trace of the root cause is available in the server logs.
  125. Apache Tomcat/9.0.10

原因是没有联网

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