webService

2018-06-22 07:53:52来源：未知阅读 ()

1.webservice的使用


　　 [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
    [System.Web.Script.Services.ScriptService]
    public class UserService : System.Web.Services.WebService
    {
        private UserDAO userDAO = new UserDAO();
        [WebMethod(Description="登陆")]
        public UserInfo GetUser(string name, string pwd)
        {
            UserDAO userDAO = new UserDAO();
            UserInfo user = userDAO.GetUser(name, pwd);
            return user;
        }
　　}

2.返回DataTable时，必须制定表的名字，否则会报错

[WebMethod]
public string GetUsersXML()
{
    string sql = "select * from userInfo";
    DataTable dt = DbHelper.GetDataTable(sql, null);
    dt.TableName = "usersTable";
    string xmlStr = "";
    try
    {
        xmlStr = XmlDataTablUtil.TableToXML(dt);
    }
    catch (Exception e) { }
    return xmlStr;
}