Java程序连接到Sql Server并运行示例查询来自Eclipse

Question

package sqlselection;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class Sqlselection 
    {
        public static void main(String[] args)
        {
            try
            {
                Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");

                String userName = "sa";
                String password = "password";
                String url = "jdbc:microsoft:sqlserver://localhost:1433"+";databaseName=AdventureWorks2008R2";
                Connection con = DriverManager.getConnection(url, userName, password);
                Statement s1 = con.createStatement();
                ResultSet rs = s1.executeQuery("SELECT TOP 1 * FROM HumanResources.Employee");
                String[] result = new String[20];
                if(rs!=null){
                    while (rs.next()){
                        for(int i = 0; i <result.length ;i++)
                        {
                            for(int j = 0; j <result.length;j++)
                            {
                                result[j]=rs.getString(i);
                            System.out.println(result[j]);
                        }
                        }
                    }
                }

                //String result = new result[20];

            } catch (Exception e)
            {
                e.printStackTrace();
            }
    }


}

    enter code here

以上是我的示例程序,用于连接到Sql服务器以从eclipse运行示例选择查询.

我收到以下错误.

java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at sqlselection.Sqlselection.main(Sqlselection.java:13)

我已将sqljdbc.jar,sqljdbc4.jar添加到库中.帮助解决这个问题

Answer 1

问题出在Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");这条线上.Class限定名称是错误的

事实sqlserver.jdbc并非如此jdbc.sqlserver

Answer 2

你忘了sqlserver.jar在eclipse中添加外部库,按照进程添加jar文件

1. 右键单击您的项目.
2. 单击buildpath
3. 单击配置bulid路径
4. 单击添加外部jar然后给出jar的路径