Web service

最新推荐文章于 2024-05-09 11:55:34 发布

原创最新推荐文章于 2024-05-09 11:55:34 发布 · 242 阅读

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本文介绍了一种通过WebService返回复杂对象的方法，包括自定义返回对象类、实现无输出参数的服务方法及序列化返回结果。同时提供了具体的.NET代码示例。

最近在有接触web Service，了解到Web Service 中的方法不能重载，不能有输出参数。想返回多个值的话，方法返回对象。

对象model代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data ;

namespace MyWebService
{
    public class ReturnObject
    {
        private string _Msg;
        public string Msg
        {
            get { return _Msg; }
            set { _Msg = value; }
        }
        private DataTable _dtRecord;
        public DataTable dtRecord
        {
            get { return _dtRecord; }
            set { _dtRecord = value; }
        }
        private bool _isSuccess;
        public bool isSuccess
        {
            get { return _isSuccess; }
            set { _isSuccess = value; }
        }
        private int _rowCount;
        public int rowCount
        {
            get { return _rowCount; }
            set { _rowCount = value; }
        }
    }
}

service方法：

         [WebMethod(Description="返回对象")]
        public ReturnObject getUserIfo()
        {

            DataSet ds = new DataSet();
            ReturnObject rbReturn = new ReturnObject();
            try
            {

                string strsql = "Select   USERID,USERNAME,TELEPHONE from USERS";
                ds = SqlHelper.GetDataSet(strsql);
                rbReturn.dtRecord = ds.Tables[0];
                rbReturn.rowCount = ds.Tables[0].Rows.Count;
                rbReturn.isSuccess = true;
            }
            catch (Exception ex)
            {
                rbReturn.Msg = ex.ToString();
                rbReturn.isSuccess = false;
                throw ex;

            }

            return rbReturn;
        }

        [WebMethod(Description="返回的对象序列化")]
        public string getUserIfoSerialize()
        {

            DataSet ds = new DataSet();
            ReturnObject rbReturn = new ReturnObject();
            try
            {

                string strsql = "Select   * from MyInfo";
                ds = SqlHelper.GetDataSet(strsql);
                rbReturn.dtRecord = ds.Tables[0];
                rbReturn.rowCount = ds.Tables[0].Rows.Count;
                rbReturn.isSuccess = true;
            }
            catch (Exception ex)
            {
                rbReturn.Msg = ex.ToString();
                rbReturn.isSuccess = false;
                throw ex;

            }
            string strResult = JsonConvert.SerializeObject(rbReturn, Formatting.Indented);
            return strResult;
        }

后台调用webService ：前台button

   protected void Button1_Click(object sender, EventArgs e)
        {
            LocalService.Service1SoapClient web = new LocalService.Service1SoapClient();
            string str = web.getUserIfoSerialize();

}