C# 报表接口样例，简单实用

//连接视图名称，视图在数据库写好
<%@ WebHandler Language="C#" Class="GetwmsReport" %>

using System;
using System.Drawing;
using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Web;
using System.Text;
using CloudSaaS.DAL;
using CloudSaaS.Model;
using Newtonsoft.Json;
using CloudSaaS.Common;
using CloudSaaS.DB.Handler;
using Newtonsoft.Json.Linq;

public class GetwmsReport : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {

        var json = string.Empty;
          var req = context.Request["req"].Trim();
        string tenantId = HttpContext.Current.Request.Cookies["tenantID"].Value;
        switch(req){
            case "GetDeliverSum":
            json = GetDeliverSum(tenantId, context);//当日发货汇总
            break;
            case "GetDeliverDetail":
            json = GetDeliverDetail(tenantId, context);//当日发货明细
            break;
            case "GetReceiptSum":
            json = GetReceiptSum(tenantId, context);//当日收获汇总
            break;
            case "GetReceiptDetail":
            json = GetReceiptDetail(tenantId, context);//当日收货明细
            break;

        }
        context.Response.ContentType = "text/json";
        context.Response.Write(json);
        context.Response.End();
        context.Response.Close();

    }
/*--当日收货明细：UV_SYSWMSREPORT_1   --当日发货明细：UV_SYSWMSREPORT_2    --当日收货汇总：UV_SYSWMSREPORT_3    --当日发货汇总：UV_SYSWMSREPORT_4*/
   /// <summary>
    ///当日发货汇总
    /// </summary>
    /// <param name="BillNo "></param>
    /// <returns>当日发货汇总</returns>
    public string GetDeliverSum(string tenantId, HttpContext context)
    {
        DataTable dt = new DataTable();
        StringBuilder strSql = new StringBuilder();
        string hetong = context.Request["hetong"]; //摘要
        string product = context.Request["product"]; //文件名称
        string project = context.Request["project"];
        strSql.Append("select * from UV_SYSWMSREPORT_4 where 1=1 ");

        DataSet ds = CloudSaaS.DB.Handler.CloudDB.GetHandler(tenantId).Query(strSql.ToString());
        if (ds.Tables.Count > 0)
        {
            dt = ds.Tables[0];
           // obj.code = "200";
          //  obj.msg = "操作成功!";
        }
        return Newtonsoft.Json.JsonConvert.SerializeObject(dt);
    }

   /// <summary>
    ///当日发货明细
    /// </summary>
    /// <param name="BillNo "></param>
    /// <returns>当日发货明细</returns>
    public string GetDeliverDetail(string tenantId, HttpContext context)
    {
        DataTable dt = new DataTable();
        StringBuilder strSql = new StringBuilder();
        string hetong = context.Request["hetong"]; //摘要
        string product = context.Request["product"]; //文件名称
        string project = context.Request["project"];
        strSql.Append("select * from UV_SYSWMSREPORT_2 where 1=1 ");

        DataSet ds = CloudSaaS.DB.Handler.CloudDB.GetHandler(tenantId).Query(strSql.ToString());
        if (ds.Tables.Count > 0)
        {
            dt = ds.Tables[0];
           // obj.code = "200";
            //obj.msg = "操作成功!";
        }
        return Newtonsoft.Json.JsonConvert.SerializeObject(dt);
    }
   /// <summary>
    ///当日收货汇总
    /// </summary>
    /// <param name="BillNo "></param>
    /// <returns>当日收货汇总</returns>
    public string GetReceiptSum(string tenantId, HttpContext context)
    {
        DataTable dt = new DataTable();
        StringBuilder strSql = new StringBuilder();
        string hetong = context.Request["hetong"]; //摘要
        string product = context.Request["product"]; //文件名称
        string project = context.Request["project"];
        strSql.Append("select * from UV_SYSWMSREPORT_3 where 1=1 ");

        DataSet ds = CloudSaaS.DB.Handler.CloudDB.GetHandler(tenantId).Query(strSql.ToString());
        if (ds.Tables.Count > 0)
        {
            dt = ds.Tables[0];
           // obj.code = "200";
           // obj.msg = "操作成功!";
        }
        return Newtonsoft.Json.JsonConvert.SerializeObject(dt);
    }
   /// <summary>
    ///当日收货明细
    /// </summary>
    /// <param name="BillNo "></param>
    /// <returns>当日收货明细</returns>
    public string GetReceiptDetail(string tenantId, HttpContext context)
    {
        dynamic obj = new System.Dynamic.ExpandoObject();
        obj.code = "1000";
        obj.msg="提交时出现错误!";
        try {
          // DataTable dt = new DataTable();
         //  dalSYSWMSInputBillHead dal = new dalSYSWMSInputBillHead(tenantId);
            StringBuilder strSql = new StringBuilder();
            string hetong = context.Request["hetong"]; //摘要
            string product = context.Request["product"]; //文件名称
            string project = context.Request["project"];
            strSql.Append("select * from UV_SYSWMSREPORT_1 where 1=1 ");
           /* if (!string.IsNullOrEmpty(hetong))
           {
                strSql.AppendFormat(" and 合同编号 like '%{0}%'",hetong);
            }
            // strSql.AppendFormat(" order by 序号 desc");
            */
         DataSet ds = CloudSaaS.DB.Handler.CloudDB.GetHandler(tenantId).Query(strSql.ToString());
            if (ds.Tables.Count > 0)
            {
                obj.data = ds.Tables[0];
                obj.code = "200";
                obj.msg = "操作成功!";
            }
        }
        catch (Exception ex)
        {
            string strMsg = string.Format("提交时出现错误{0}", ex.Message);
            obj.code = "1000";
            obj.msg = strMsg;
        }
       // return Newtonsoft.Json.JsonConvert.SerializeObject(obj);
        return JsonConvert.SerializeObject(obj);
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

}