c3p0连接错误 An attempt by a client to checkout a Connection has timed out.
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原文：c3p0出现 An attempt by a client to checkout a Connection has timed out
java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. at com.mchange.v .sql.SqlUtils.toSQLException SqlUtils.java: at com.mchange.v .sql.SqlUtils.toSQLException SqlUti ...
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