Question

java里是怎样执行一个select语句的

Answer 1

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class xxxx {
public static void main(String[] args) {
Connection con = null ;
Statement stmt = null ;
try {
Class.forName("com.mysql.jdbc.Driver"); //mysql为例 不一样的数据库所需的驱动包不一样 连接语句略有不同
con = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/数据库名", "root", "密码");
stmt = con.createStatement();
String sql = "insert into info values ('用户', 'mima', 'piapiapia~')";
stmt.executeUpdate(sql);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
if(stmt != null) {
stmt.close();
stmt = null;
}
if (con != null) {
con.close();
con = null;
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}

}