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服务器端cs文件

时间:2016-01-23 07:52:04      阅读:133      评论:0      收藏:0      [点我收藏+]

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 服务器端向mysql数据库写数据

技术分享
using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Data.OleDb;
using System.Drawing;
using System.Data;
using MySQLDriverCS;
using System.Web.Script.Serialization;

namespace GLSXJSON2.Controllers
{
    public class AdviseInsertController : Controller
    {

        public string Index(string text)  //这里的text是从service文件中获取的参数
        {
            MySQLConnection conn = null;
            conn = new MySQLConnection(new MySQLConnectionString("localhost", "glsx", "root", "ecust2016", 3306).AsString);
            conn.Open();     //这几句为建立一个MySQL的连接conn




            //sql语句写成string形式
            string str0 = string.Format("select MAX(Id) from fag order by Id desc");

            int id;
            MySQLCommand cmd0 = new MySQLCommand(str0, conn);        //建立MySQL执行命令cmd0 参数为str0和conn
            if(cmd0.ExecuteScalar()!=null&&!Convert.IsDBNull(cmd0.ExecuteScalar())){//执行查询操作,ExecuteScalar()返回查询结果第一行
                id=int.Parse(cmd0.ExecuteScalar().ToString())+1;      //这是不为空情况把id+1
            }
            else
                id=0;      //若为空id置0



            //sql语句写成string形式
            string str = string.Format("insert into fag(Id,content) values({0},‘{1}‘)", id, text);

            try
            {
                MySQLCommand cmd = new MySQLCommand(str, conn);     //建立MySQL执行命令cmd 参数为str和conn
                cmd.ExecuteNonQuery();  //返回执行的条数
                return "1";      //执行成功返回1
            }
            catch
            {
                return "-1";         //失败返回-1
            }
             
        }

    }
}
View Code

 服务器端从mysql数据库读数据

技术分享
 1 using System;
 2 using Newtonsoft.Json;
 3 using Newtonsoft.Json.Linq;
 4 using System.Collections.Generic;
 5 using System.Linq;
 6 using System.Web;
 7 using System.Web.Mvc;
 8 using System.Data.OleDb;
 9 using System.Drawing;
10 using System.Data;
11 using MySQLDriverCS; 
12 using System.Web.Script.Serialization;
13 
14 namespace GLSXJSON2.Controllers
15 {
16     public class OrderController : Controller
17     {
18        
19         public JArray Index(string value,string id)
20         {
21             MySQLConnection conn = null;
22             conn = new MySQLConnection(new MySQLConnectionString("localhost", "glsx", "root", "ecust2016", 3306).AsString);
23             conn.Open();
24             //sql语句写成string形式
25             string str = string.Format("select placetime,price,cloth11,cloth12,cloth13,cloth14,cloth21,cloth22,cloth23 from `order` where status=‘{0}‘ and customer=‘{1}‘", int.Parse(value),int.Parse(id));
26 
27             //用conn连接数据库然后执行sql语句生成datatable
28             MySQLDataAdapter sda = new MySQLDataAdapter(str, conn);
29             DataTable dt = new DataTable();
30             sda.Fill(dt);//填充数据到dt
31 
32             //创建一个用以序列化的对象
33             JavaScriptSerializer jss = new JavaScriptSerializer();
34             //从datatable中逐列获取值到数组
35              System.Collections.ArrayList dic = new System.Collections.ArrayList();
36              foreach (DataRow dr in dt.Rows)
37              {
38                  System.Collections.Generic.Dictionary<string, object> drow = new System.Collections.Generic.Dictionary<string, object>();
39                  foreach (DataColumn dc in dt.Columns)
40                  {
41                      drow.Add(dc.ColumnName, dr[dc.ColumnName]);
42                  }
43                  dic.Add(drow);
44              }
45             conn.Close();
46 
47             //将获取到的数列序列化以后转化为string然后再转化为JArray
48             return JArray.Parse(jss.Serialize(dic));
49         }
50 
51     }
52 }
View Code

 

服务器端cs文件

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原文地址:http://www.cnblogs.com/to-creat/p/5152722.html

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