JAVA JDBC连接 SQLServer2012

连接数据库的java测试代码

 import java.sql.*;

 public class ConManager {
     final static String cfn = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
     final static String url = "jdbc:sqlserver://localhost:1433;DatabaseName=student";

     public static void main(String[] args) {
         Connection con = null;
         PreparedStatement statement = null;
         ResultSet res = null;
         try {
             Class.forName(cfn);
             con = DriverManager.getConnection(url,"sa","1234");

             String sql = "select *from test";//查询test表
             statement = con.prepareStatement(sql);
             res = statement.executeQuery();
             while(res.next()){
                 String title = res.getString("test_name");//获取test_name列的元素                                                                                                                                                    ;
                 System.out.println("姓名："+title);
             }

         } catch (Exception e) {
             // TODO: handle exception
             e.printStackTrace();
         }finally{
             try {
                 if(res != null) res.close();
                 if(statement != null) statement.close();
                 if(con != null) con.close();
             } catch (Exception e2) {
                 // TODO: handle exception
                 e2.printStackTrace();
             }
         }
     }
 }

要在java项目中导入sqljdbc4.jar包

项目名鼠标右键->Build Path->Configure Build Path

添加sqljdbc4.jar

添加成功

接下来就是处理SQLServer2012数据库

1.保证服务正常启动

2.保证在数据库中有这些

运行java项目

数据库连接成功！！！