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  • android 如何连接sqlserver数据库

    步骤如下:

    1.下载jar包:jtds-1.3.1.jar;

    2.将jtds-1.3.1.jar直接拷贝到项目下的app下的libs文件夹下;

    3.创建java类:

    package com.example.zhouy.mytest01;
    
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    
    /**
     * Created by Administrator on 2017/12/14.
     */
    
    public class DBUtil {
        private static Connection getSQLConnection(String ip,String user,String pwd,String db)
        {
            Connection con =null;
            try {
                Class.forName("net.sourceforge.jtds.jdbc.Driver");
                con = DriverManager.getConnection("jdbc:jtds:sqlserver://"+ip+":1433/"+db+";charset=utf-8",user,pwd);
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            } catch (SQLException e) {
                e.printStackTrace();
            }
            return con;
    
        }
    
        public static String QuerySQL(){
    
            String result="";
    
            try {
                Connection conn = getSQLConnection("192.168.1.xx","xx","xxx","DATABASE");
                String sql = "select top 10 * from users";
                Statement stmt = conn.createStatement();
                ResultSet rs = stmt.executeQuery(sql);
                while(rs.next())
                {
                    String s1 = rs.getString("USRNAM");
                    String s2 = rs.getString("FULLNAME");
                    result += s1+" - " + s2 + "
    ";
                    System.out.println(s1+" - "+s2);
                }
                rs.close();
                stmt.close();
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
                result += "查询数据异常!"+e.getMessage();
            }
            return result;
        }
    
        public static void main(String[] args){
            QuerySQL();
    
        }
    }

    直接运行即可测试是否连接成功;

    如果出现failed to create directory错误请看上一篇博文;

    如果出现android 中Network error IOException: failed to connect to /127.0.0.1 (port 1433): connect failed: ECONNREFUSED (Connection refused)错误请看上一篇博文;

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  • 原文地址:https://www.cnblogs.com/zy20160117/p/8038816.html
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