java操作sql server数据添加，修改，删除记录

 

1. import java.sql.*;

2. public class Renewal {

3. static Connection con;

4. static PreparedStatement sql;

5. static ResultSet res;

6. public Connection getConnection(){

7. try{

8. Class.forName("net.sourceforge.jtds.jdbc.Driver"); //数据库驱动加载

9. //数据库驱动加载方法：http://blog.csdn.net/txwtech/article/details/62245346

10. System.out.println("数据库驱动加载成功");

11. con=DriverManager.getConnection("jdbc:jtds:"+

12. "sqlserver://localhost:1433/db_jdbc","sa","123456");//数据库连接，sa是登录名，后面的是数字是密码，db_jdbc是数据库名字

13. System.out.println("数据库连接成功");

14. }catch(Exception e){

15. e.printStackTrace();

16. }

17. return con;

18. }

19. public static void main(String[] args){

20. Renewal c=new Renewal();

21. con=c.getConnection();

22. try{

23.  
24.  

25. sql=con.prepareStatement("select * from tb_stu");

26. //sql.setInt(1,101);

27. res=sql.executeQuery();

28. System.out.println("执行增加，修改，删除前数据---row data");

29.  

30. while(res.next()){

31. //String id=res.getString("id");

32. String id=res.getString(1); //p366 详解

33. String name=res.getString("name");

34. String sex=res.getString("sex");

35. String birthday=res.getString("birthday");

36. System.out.print("编号:"+id);

37. System.out.print(" 姓名:"+name);

38. System.out.print(" 性别："+sex);

39. System.out.println(" 生日:"+birthday); //。。。。。。。。

40. }

41. sql=con.prepareStatement("insert into tb_stu"

42. +" values(?,?,?,?)"); //报错“列名或所提供值的数目与表定义不匹配。”，数据库中定义了4列，value后面的问号个数就应该是4个

43.  

44. sql.setString(1, "66");

45. sql.setString(2,"张一");

46. sql.setString(3, "m");

47. sql.setString(4, "2008-12-1");

48. sql.executeUpdate();

49.  

50. sql=con.prepareStatement("select *from tb_stu");

51. res=sql.executeQuery();

52. System.out.println("执行增加，修改，删除前数据---new data");

53.  

54. while(res.next()){

55. String id=res.getString(1); //p366 详解

56. String name=res.getString("name");

57. String sex=res.getString("sex");

58. String birthday=res.getString("birthday");

59. System.out.print("编号:"+id);

60. System.out.print(" 姓名:"+name);

61. System.out.print(" 性别："+sex);

62. System.out.println(" 生日:"+birthday); //。。。

63.  

64. }

65.  

66. sql=con.prepareStatement("update tb_stu set birthday "

67. +"= ? where id=(select min(id) from tb_stu)");

68. sql.setString(1, "2007-12-1");

69. sql.executeUpdate();

70.  

71. sql=con.prepareStatement("select *from tb_stu");

72. res=sql.executeQuery();

73. System.out.println("执行增加，修改，删除后的数据---changed birthday data");

74. while(res.next()){

75. String id=res.getString(1); //p366 详解

76. String name=res.getString("name");

77. String sex=res.getString("sex");

78. String birthday=res.getString("birthday");

79. System.out.print("编号:"+id);

80. System.out.print(" 姓名:"+name);

81. System.out.print(" 性别："+sex);

82. System.out.println(" 生日:"+birthday); //。。。

83.  

84. }

85.  

86. Statement stmt=con.createStatement();

87. stmt.executeUpdate("delete from tb_stu where id=" //...delete

88. +"(select min(id) from tb_stu)");

89. // sql.setInt(1, 1);

90. // sql.executeUpdate();

91.  

92. //show data

93.  

94. sql=con.prepareStatement("select *from tb_stu");

95. res=sql.executeQuery();

96. System.out.println("执行增加，修改，删除后的数据---after deleted data");

97. while(res.next()){

98. String id=res.getString(1); //p366 详解

99. String name=res.getString("name");

100. String sex=res.getString("sex");

101. String birthday=res.getString("birthday");

102. System.out.print("编号:"+id);

103. System.out.print(" 姓名:"+name);

104. System.out.print(" 性别："+sex);

105. System.out.println(" 生日:"+birthday); //。。。

106.  

107. }

108.  

109. }catch(Exception e){

110. e.printStackTrace();

111. }

112. }

113. }

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