在最近编译并尝试测试一个基本的论坛程序集之后,我遇到了一个令人惊讶的 MySQL 错误:
Forum.ForumException: MySql.Data.MySqlClient.MySqlException (0x80004005): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'desc) VALUES('bar', 'bar')' at line 1 at ...
这是论坛程序集中的 CreateBoard 函数:
public int CreateBoard(string bname, string bdesc)
{
MySqlConnection con = new MySqlConnection(conString);
MySqlCommand cmd = new MySqlCommand("INSERT INTO boards (name, desc) VALUES(?name, ?desc)", con);
int res_id = 0;
try
{
//cmd.CommandText = "INSERT INTO boards(name, desc) VALUES(?name, ?desc)";
cmd.Parameters.Add("?name", MySqlDbType.VarChar).Value = bname;
cmd.Parameters.Add("?desc", MySqlDbType.VarChar).Value = bdesc;
con.Open();
cmd.ExecuteNonQuery();
//get the id of the new board
//cmd.CommandText = "SELECT last_insert_id() FROM boards";
//res_id = (int)cmd.ExecuteScalar();
return res_id;
}
catch (Exception yf)
{
throw new ForumException(yf.ToString());
}
finally
{
con.Close();
}
}
最后,这是来自测试页面“a.aspx”的代码片段
protected void Page_Load(object sender, EventArgs e)
{
Forum f = new Forum();
try
{
int b = f.CreateBoard("foo", "bar");
if (b == 0)
{
Response.Write("Board creation failure :(");
return;
}
Response.Write("Board create with id '" + b + "', name 'foo', and description 'bar'");
}
catch (ForumException ff)
{
Response.Write(ff.ToString());
}
}
执行查询时,随机引用似乎无处不在。谁能帮我解决这个问题?我一直很沮丧解决。