java连接SqlServer数据库的问题

Question

最近在搞java，想连个SqlServer连不上，可以加载驱动，但是连不上数据库。
数据库版本为SqlServer2017

代码如下:

package util;

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

public class DBManager {
    static int num;
    static Statement st=null;
    static ResultSet rs=null;
    static Connection con=null;
    static String url="jdbc:sqlserver://LAPTOP-LG07MEUA:1433;DataBaseName=Java_Data";
    public static void exec(String s) throws SQLException
    {
        String user,passwd;
        user="sa";
        passwd="1234567";
        try {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            System.out.println("数据库驱动加载成功。");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        //就是这里，无法链接数据库
        con=DriverManager.getConnection(url, user, passwd);
        System.out.println("10");
        st=con.createStatement();
        System.out.println("1");
        try
        {
            if(s.startsWith("select")||s.startsWith("SELECT"))
                rs=st.executeQuery(s);
            if(s.startsWith("delete")||s.startsWith("DELETE"))
                num=st.executeUpdate(s);
            if(s.startsWith("update")||s.startsWith("UPDATE"))
                num=st.executeUpdate(s);
            if(s.startsWith("insert")||s.startsWith("INSERT"))
                num=st.executeUpdate(s);
            System.out.println("修改成功！");
        }
        catch(Exception e)
        {
            System.out.println("进行数据库修改时失败。");
        }
        finally
        {
            try
            {
                if(rs!=null)
                    rs.close();
                if(st!=null)
                    st.close();
                if(con!=null)
                    con.close();
            }
            catch(SQLException e) {
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args) throws SQLException {
        int i=0;
        int[] Resultage=new int [20];
        String[] Resultxh=new String [20];
        String[] Resultxm=new String [20];
        String[] Resultxb=new String [20];
        String[] Resultzy=new String [20];
        Date[] Resultdate=new Date [20];
        String s="SELECT * FROM xsb";
        DBManager.exec(s);
        System.out.println("学号"+""+"姓名"+" "+"性别"+" "+"出生日期"+" "+"专业"+" "+"年龄");
        while(rs.next())
        {
            Resultxh[i]=rs.getString("学号");
            Resultxm[i]=rs.getString("姓名");
            Resultxb[i]=rs.getString("性别");
            Resultdate[i]=rs.getDate("出生日期");
            Resultzy[i]=rs.getString("专业");
            Resultage[i]=rs.getInt("年龄");
            System.out.print(Resultxh[i]+" ");
            System.out.print(Resultxm[i]+" ");
            System.out.print(Resultxb[i]+" ");
            System.out.print(Resultdate[i]+" ");
            System.out.print(Resultzy[i]+" ");
            System.out.println(Resultage[i]);
        }

    }

}



报错为：
数据库驱动加载成功。
Exception in thread "main" java.lang.NullPointerException
    at javax.xml.bind.DatatypeConverter.parseHexBinary(DatatypeConverter.java:310)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(SQLServerConnection.java:4098)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConnection.java:3160)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$100(SQLServerConnection.java:43)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(SQLServerConnection.java:3123)
    at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7505)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2445)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1981)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:1628)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:1459)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:773)
    at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1168)
    at java.sql/java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql/java.sql.DriverManager.getConnection(Unknown Source)
    at util.DBManager.exec(DBManager.java:27)
    at util.DBManager.main(DBManager.java:72)

求大佬帮忙解答。

Answer 1

https://www.cnblogs.com/zijeak/p/10956410.html
你看下这篇文章
SQL SERVER
jar 包sqljdbc-x.jar

驱动名 com.mircosoft.sqlserver.jdbc.SQLServerDriver

连接 jdbc:mircosoft:sqlserver:localhost:1433;databasename=数据库实例名