连接超时JDBC-MySQL
[英]Connection Time Out JDBC-MySQL
问题描述
I have a Java application running Win 7 connecting to MySQL on the same host. 
我有一个运行Win 7的Java应用程序，该应用程序连接到同一主机上的MySQL。 Eclipse IDE shows the following error every time after 8-10mins. Eclipse IDE每次8-10分钟后都会显示以下错误。
The last packet sent successfully to the server was 0 milliseconds ago. 成功发送到服务器的最后一个数据包是在0毫秒之前。 The driver has not received any packets from the server. 驱动程序尚未收到来自服务器的任何数据包。 at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1070) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2214) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:781) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:348) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:284) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at iProclassHandlers.IProclass_Info_DAO.conn2SQL(IProclass_Info_DAO.java:151) at iProclassHandlers.IProclass_Info_DAO.toString(IProclass_Info_DAO.java:140) at iProclassParsers.IProclass_Info_Parser.printData(IProclass_Info_Parser.java:67) at iProclassParsers.IProclass_Info_Parser.runParser(IProclass_Info_Parser.java:38) at iProclassParsers.IProclass_main.main(IProclass_main.java:19) Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure 在com.mysql.jdbc.ConnectionImpl。（ConnectionImpl.java:781）在com.mysql.jdbc.ConnectionImpl.createNewIO（ConnectionImpl.java:2214）在com.mysql.jdbc.SQLError.createCommunicationsException（SQLError.java:1070）在com.mysql.jdbc.ConnectionImpl.getInstance（ConnectionImpl.java:348）在com.mysql.jdbc.NonRegisteringDriver.connect（NonRegisteringDriver.java:284）在java.sql.DriverManager.getConnection（未知源）在iProclassHandlers.IProclass_Info_DAO.conn2SQL（IProclass_Info_DAO.java:151）处的.DriverManager.getConnection（未知源），iProclassParsers.IProclass_Info_Parser.print处的iProclassHandlers.IProclass_Info_DAO.toString（IProclass_Info_DAO.java:140） iProclassParsers.IProclass_main.main（IProclass_main.java:19）处的IProclass_Info_Parser.runParser（IProclass_Info_Parser.java:38）原因：com.mysql.jdbc.CommunicationsException：通信链接失败
2 个解决方案
解决方案1
0 2010-08-14 20:17:59
这个报告的MySQL 错误可能解释了它。
解决方案2
0 2010-08-15 20:15:27
Try these: 试试这些：
Tomcat6 can't connect to MySql (The driver has not received any packets from the server) Tomcat6无法连接到MySql（驱动程序尚未从服务器收到任何数据包）
https://serverfault.com/questions/89955/unable-to-connect-to-mysql-through-jdbc-connector-through-tomcat-or-externally https://serverfault.com/questions/89955/unable-to-connect-to-mysql-through-jdbc-connector-through-tomcat-or-externally
Can't make JDBC connection to MySQL (using Java, IntelliJ, and Linux) 无法建立与MySQL的JDBC连接（使用Java，IntelliJ和Linux）
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