1 package Test;
 2
 3 import java.sql.*;
 4
 5 public class Test {
 6
 7 public static void main(String[] args) {
 8     update();
 9
10 }
11
12
13 public static void update() {
14     Connection connection=null;
15     String driverName="com.microsoft.sqlserver.jdbc.SQLServerDriver";//SQL数据库引擎
16     String dbURL="jdbc:sqlserver://localhost:1433;DatabaseName=tjl";//数据源  ！！！注意若出现加载或者连接数据库失败一般是这里出现问题
17     String Name="sa";
18     String Pwd="19990713";
19   try{
20   Class.forName(driverName);
21   connection=DriverManager.getConnection(dbURL,Name,Pwd);
22   System.out.println("连接数据库成功");
23   }catch(Exception e){
24    e.printStackTrace();
25      System.out.println("连接失败");
26      }
27     Statement stmt = null;
28     try {
29         stmt = connection.createStatement();
30     } catch (SQLException e) {
31         // TODO Auto-generated catch block
32         e.printStackTrace();
33     }
34     //增删改操作
35     String sql_1="insert into student values('990403','佩奇','男','12','1','2101')";
36     int count_1 = 0;
37     try {
38         count_1 = stmt.executeUpdate(sql_1);
39     } catch (SQLException e) {
40         // TODO Auto-generated catch block
41         e.printStackTrace();
42     }//返回值表示增删改几条数据
43     //处理结果
44     if(count_1>0){
45         System.out.println("更新成功!");
46     }
47     //查询操作
48     String sql_2="select * from student";
49
50     //关闭
51     try {
52         stmt.close();
53     } catch (SQLException e) {
54         // TODO Auto-generated catch block
55         e.printStackTrace();
56     }
57     try {
58         connection.close();
59     } catch (SQLException e) {
60         // TODO Auto-generated catch block
61         e.printStackTrace();
62     }
63 }
64 }
65