Eclipse怎么从数据库中获取数据?

Java code

import java.sql.*;public class test {    public static void main(String[] args) {        String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver";        String dbURL = "jdbc:microsoft:sqlserver://localhost:183.188.198.16:1433;DatabaseName=database_demo";        String userName = "sa"; // 默认用户名        String userPwd = "123456"; // 密码        try {            Class.forName(driverName);            Connection dbConn = DriverManager.getConnection(dbURL, userName,                    userPwd);            System.out.println("连接成功！"); // 如果连接成功，控制台输出“连接成功！”        } catch (Exception e) {            //System.out.println("连接失败！");            e.printStackTrace();        }    }}

以下是错误

Java code

java.sql.SQLException: No suitable driver found for jdbc:microsoft:sqlserver://localhost:183.188.198.16:1433;DatabaseName=database_demo    at java.sql.DriverManager.getConnection(DriverManager.java:604)    at java.sql.DriverManager.getConnection(DriverManager.java:221)    at test.main(test.java:11)

[解决办法]
看了他的JDBC驱动包，将url地址改了，还有他自己连接数据库就不存在，换了一个数据库
还有出现密码不对的情况

Java code

import java.sql.DriverManager;import java.sql.Connection;public class TestSQL {     public static void main(String[] args) {        String driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";        String dbURL = "jdbc:sqlserver://localhost:1433;DatabaseName=database_demo";        String userName = "sa"; // 默认用户名        String userPwd = "123456"; // 密码        try {            Class.forName(driverName);            Connection dbConn = DriverManager.getConnection(dbURL, userName,                    userPwd);            System.out.println("连接成功！"); // 如果连接成功，控制台输出“连接成功！”        } catch (Exception e) {            //System.out.println("连接失败！");            e.printStackTrace();        }    }}