结合ajax技术通过web服务实现dotnet非链式工厂模式

【IT168技术文档】

  1.为web服务其他一致的入口点:int Execute(DataSet ds );
  2.实现非链式工厂模式.动态加载服务提供者,从而提供服务.

1 public static int Execute(DataSet ds ){
2
3        string[] arr = UnPack(ds);
4
5        //Analysis and Invoke right method 
 6        string methodName = arr[0].ToString().Trim();
7        Object[] parme = new object[]{
8        System.Int32.Parse(arr[1].ToString().Trim()),
9        System.Int32.Parse(arr[2].ToString().Trim())
10        };
11
12        Assembly oAssembly = null;
13        Type oType = null;
14
15
16        oAssembly = Assembly.GetExecutingAssembly();
17        oType = oAssembly.GetType(methodName);
18
19        mycompute com = null;
20        com = (mycompute)Activator.CreateInstance(oType);
21        //oMethod = oType.GetMethod("Execute");
22
23        //int result = (int)oMethod.Invoke(new object(), parme);
24        int result = com.Execute(System.Int32.Parse(arr[1].ToString().Trim()),System.Int32.Parse(arr[2].Trim()));
25        return result;
26    }
27
28    public  static string[] UnPack(DataSet ds)
29    {
30        if (ds == null) throw new Exception("DataSet Error ");
31
32        string[] arr = new string[3];
33
34        int i = 0 ;
35
36        foreach (DataRow row in ds.Tables[0].Rows)
37        {
38            foreach (DataColumn column in ds.Tables[0].Columns)
39            {
40                arr[i] = row[column].ToString();
41                i++;
42            }
43        }
44        return arr;
45    }
46
3.客户端通过ajax获得服务结果,实现无刷新.
[Ajax.AjaxMethod()]
public int getResult(string methodName,string str1, string str2)
4.
1function serverside()
2{
3     _Default.getResult(
4                document.getElementById("Select1").value,
5                document.getElementById("Text1").value,
6                document.getElementById("Text2").value,ServerSide_CallBack);
7}
8
9function ServerSide_CallBack(res){
10//    document.getElementById("result").value=response.value;
11    if(res.error!=null)alert(res.error);
12
13    document.getElementById("result").innerHTML="<font size=3 color=red>"+res.value+"</font>";
14
15}