使用my exclipse对数据库进行操作(3)

public class class3 {

public static void main(String[] args) {

// TODO Auto-generated method stub

try {

//1.链接数据库
   Class.forName ("com.microsoft.sqlserver.jdbc.SQLServerDriver");
   Connection con = DriverManager.getConnection("jdbc:sqlserver://192.168.8.60;DataBaseName=School","sa","123456");

//3.用定义好的SQL语句输出数据库信息
   Statement sta = con.createStatement();
 //2.数据库SQL语句 
   String sql = "update [Student] set  [stuName] = '小花', [sex] =  '男', [age] = '50' where [classid] = '1'  ";
   sta.executeUpdate(sql);

//4.判断是否更改成功

if(!sta.execute(sql)){
      System.out.println("数据更改成功");
     }else{
      System.out.println("数据没更改");
     }
  //5.关闭数据库
       sta.close();
    con.close();