importmysql.connector# 连接MySQL数据库cnx=mysql.connector.connect(user='root',password='password',host='localhost',port='3306',database='test')# 获取连接字符串connection_string=cnx.get_connection_params()print(connection_string) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15...
// 创建连接对象 Connection conn = DriverManager.getConnection(url, username, password); // 创建语句对象 Statement stmt = conn.createStatement(); // 执行SQL查询 ResultSet rs = stmt.executeQuery("SELECT * FROM table_name"); // 处理查询结果 while (rs.next()) { System.out.println(rs.getStri...
在这种水平切分的多数据库上使用DB分布式锁,可以自定义一个DataSouce列表。并暴露一个getConnection(String transactionId)方法,按照transactionId找到对应的Connection。 实现代码如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 packagedlock;importcom.alibaba.druid.pool.DruidDataSource;importorg.springframework...
importjava.sql.*;publicclassMySQLExample{publicstaticvoidmain(String[]args){Stringurl="jdbc:mysql://localhost:3306/mydatabase?user=root&password=123456";Connectionconn=null;Statementstmt=null;ResultSetrs=null;try{// 建立数据库连接conn=DriverManager.getConnection(url);// 创建Statement对象stmt=conn.cre...
Tested with Connector/Net 6.9.8 and server 5.7.9 Commercial Advanced in Windows 8.1. Used Integrated Security = yes Integrated Security = true Integrated Security = false and integrated security (lower cases) with the same values in connection string. And all worked fine. Although using Integrated...
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public string Password2 { get; set; } Property ValueTypeDescription System.String Password3Gets or sets the password for a third authentication that should be used to make a connection.Declarationpublic string Password3 { get; set; } Property ValueTypeDescription System.String ...
5.1.26.jar:na]at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2304)~[mysql-connector-java-5.1.26.jar:na]at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)~[mysql-connector-java-5.1.26.jar:na]at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)...
m_ConnectionString = entityBuilder.ToString(); } 通过上面的方式我们能够生成正确的连接字符串,在生成连接字符串之后我们需要将这个连接字符串传入到自动生成的dvapEntities对象中,这里也贴出部分代码。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ...
getString(String name) 获取String类型的值 ,name代表字段的名称 getInt(int index) 获取int类型的值,index代表字段的名称 next() 当前位置到下一行 previous() ResultSet的上一行 absolute(int row) ResultSet的指定位置 建立连接步骤 在写代码之气需要把MySQL的jar包导入到项目中,找到MySQL\Connector J 8.0 中...