ConnectionTimeout,connection timeout:连接超时等待时间,默认15s DefaultCommandTimeout,command timeout:MySqlCommand 超时时间,默认 30s UserID, uid, username, user name, user:数据库登录帐号 Password,pwd: 登录密码 PersistSecurityInfo:是否保持敏感信息,默认 false Encrypt:已经用 SSL 替代了,默认 false Certific...
UseOldSyntax,old syntax, oldsyntax:是否兼容旧版的语法,默认 false ConnectionTimeout,connection timeout:连接超时等待时间,默认15s DefaultCommandTimeout,command timeout:MySqlCommand 超时时间,默认 30s UserID, uid, username, user name, user:数据库登录帐号 Password,pwd: 登录密码 PersistSecurityInfo:是否保持...
importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.SQLException;publicclassMySQLConnection{publicstaticvoidmain(String[]args){Stringurl="jdbc:mysql://localhost:3306/mydatabase?user=root&password=123456&connectTimeout=10000&socketTimeout=30000&autoReconnect=true";try{Connectionconn=DriverMa...
setting the connection timeout. The ODBC drivers 5.2.4 and 5.2.5 use libmysqlclient 5.6 where the problem was fixed. Now we know that setting SQL_ATTR_LOGIN_TIMEOUT is working as expected in Connector/ODBC 5.2.5. Hence, we can proceed with adding the connection string and GUI dialog ...
要设置这些操作的超时时间,您需要分别设置socketTimeout和connectionTimeout参数。例如: String url = "jdbc:mysql://localhost:3306/mydatabase?connectTimeout=5000&socketTimeout=10000&readTimeout=15000"; 复制代码 在这个例子中,我们将连接超时时间设置为5秒(5000毫秒),读取操作超时时间设置为15秒(15000毫秒),...
ConnectionTimeout，connectiontimeout：连接超时等待时间，默认15s DefaultCommandTimeout，commandtimeout：MySqlCommand超时时间，默认30s UserID,uid,username,username,user：数据库登录帐号 Password，pwd：登录密码 PersistSecurityInfo：是否保持敏感信息，默认false Encrypt：已经用SSL替代了，默认false CertificateFile：证书...
Connection conn = DriverManager.getConnection(url); It doesn't work. This is the error stack: java.sql.SQLException: Unable to connect to any hosts due to exception: java.net.ConnectException: Connection timed out: connect ** BEGIN NESTED EXCEPTION ** ...
Stringurl="jdbc:mysql://localhost:3306/mydb?connectTimeout=5000&socketTimeout=3000";Connectionconn=DriverManager.getConnection(url,username,password); 1. 2. 在上述示例中,我们将连接超时时间设置为5秒,套接字超时时间设置为3秒。如果在5秒内未能建立连接,或者在连接建立成功后3秒内未能收到服务器的响应,...
public class Tester extends IsValidOnlyConnectionTester{ protected int getIsValidTimeout() { return 30; } } 如果驱动不支持最新的API,默认情况下c3p0通过在连接上调用DatabaseMetaData的getTables()方法。这样可以与任何类型的数据库有效兼容,但是由于返回很大的数据量会对数据库连接池的性能造成显著影响;在JDBC...
connectionString = "...;Allow Zero Datetime=False;Convert Zero Datetime=True;Pooling=True;Max Pool Size=500;Min Pool Size=3;Connection Lifetime=30"; MySql.Data.dll, version 5.0.6.0 The problem is that there are several different applications on the server, each which will make a number of...