C#向Sql Server中插入记录时单引号的处理

ASP.Net种使用C#, 向CoreDB.myBBS表中插入记录值(Title, Content)【文章的标题和内容】,由于Content, Title中可能包含单引号,直接使用sql的insert命令会报错,对此有两种处理方法,一种将单引号替换成两个单引号,第2种方法是使用存储过程。

 

表myBBS的格式定义如下:
CREATE TABLE [dbo].[myBBS] (
 [ID] [bigint] IDENTITY (1, 1) NOT NULL ,
 [Title] [char] (160) COLLATE Chinese_PRC_CI_AS NULL ,
 [Author] [char] (20) COLLATE Chinese_PRC_CI_AS NULL ,
 [Date_of_Created] [datetime] NULL ,
 [Abstract] [char] (480) COLLATE Chinese_PRC_CI_AS NULL ,
 [Content] [ntext] COLLATE Chinese_PRC_CI_AS NOT NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

 

1、将单引号用两个单引号替换:
   SqlConnection coreDB=new SqlConnection();
   coreDB.ConnectionString= "workstation id=\"GQA-ERIC-LV\";packet size=4096;integrated security=SSPI;" +
    "data source=\"gqa-eric-lv\";persist security info=False;initial catalog=CoreDB";
   
   //单引号用"''"替换,以插入'到SQL Server中;
   string Title=TextBox1.Text.Replace("'","''");
   string Content=TextBox2.Text.Replace("'","''");
   if(Title.Trim()==""||Content.Trim()=="")return;
   string insertCMD =@"insert into myBBS (Title,Content) Values('"+ Title +  "','"  +Content+"')";

   SqlCommand myCommand = new SqlCommand(insertCMD,coreDB);
   coreDB.Open();
   SqlDataReader myReader = myCommand.ExecuteReader();
   myReader.Close();
   coreDB.Close();

 

2、使用存储过程来插入

1) 创建存储过程:
Create proc InsertMyBBSProc(@Title char(160), @Author char(20), @Content ntext)
AS
Insert into myBBS(Title,Author,Content) Values(@Title, @Author, @Content)

2) 查询分析器中测试存储过程:
declare @title char(160)
declare @author char(20)
declare @content char(600)
set @title='test title 3'
set @author='david euler 3'
set @content='it is the content 3'
exec InsertMyBBSProc @title, @author, @content

3) C#中通过SqlCommand执行存储过程:
   SqlConnection coreDB=new SqlConnection();
   coreDB.ConnectionString= "workstation id=\"GQA-ERIC-LV\";packet size=4096;integrated security=SSPI;" +
    "data source=\"gqa-eric-lv\";persist security info=False;initial catalog=CoreDB";
               
   string Title=TextBox1.Text;
   string Content=TextBox2.Text;

   if(Title.Trim()==""||Content.Trim()=="")return;
   
   //InsertMyBBSProc是向MyBBS中插入数据的Procedure:
   SqlCommand insertCMD = new SqlCommand("InsertMyBBSProc",coreDB);

   insertCMD.CommandType=CommandType.StoredProcedure;//命令类型为存储过程;下面定义参数对象:
   SqlParameter prm1=new SqlParameter("@Title",  SqlDbType.Char,160);
   SqlParameter prm2=new SqlParameter("@Author", SqlDbType.Char,20);
   SqlParameter prm3=new SqlParameter("@Content",SqlDbType.NText,1073741823);
   prm1.Direction=ParameterDirection.Input;
   prm2.Direction=ParameterDirection.Input;
   prm3.Direction=ParameterDirection.Input;


   //为insertCMD添加SQL参数:
   insertCMD.Parameters.Add(prm1);
   insertCMD.Parameters.Add(prm2);
   insertCMD.Parameters.Add(prm3);


   //为SQL参数赋值:
   prm1.Value=Title;
   prm2.Value="David Euler";
   prm3.Value=Content;

   coreDB.Open();
   int recordsAffected=insertCMD.ExecuteNonQuery();
   if(recordsAffected==1)Response.Write("<script>alert('"+ "插入成功" +"');</script>");
   coreDB.Close();

 

posted @ 2009-12-30 16:15  唔愛吃蘋果  阅读(1755)  评论(0编辑  收藏  举报