如何调用Android中使用PhoneGap的一个asp.net web服务 [英] how to call a asp.net webservice in android using phonegap

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问题描述

我有使用数据表中的asp.net web服务,从访问数据库值
和我的JavaScript是这样在它采用的是Android模拟器使用PhoneGap的运行Eclipse但这code似乎并没有被工作.PLS帮助我。

 <脚本类型=文/ JavaScript的>
     功能GetAge(){
         jQuery.support.cors = TRUE;
          $ .mobile.allowCrossDomainPages = TRUE;
           $阿贾克斯({
          数据:DATAS,
             键入:POST,
            异步:假的,
            数据类型:JSON
             的contentType:应用/ JSON的;字符集= UTF-8,
             网址:HTTP://本地主机:50113 / Service1.asmx的/ mydbCon WSDL
             成功:函数(MSG){
                $('#divToBeWorkedOn')HTML(msg.text)。
             },
             错误:功能(E){
                 $('#divToBeWorkedOn')的html(不可用)。
             }
         });
     }
  < / SCRIPT>

和我Service1.asmx的是这样

  [的WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)
    公开数据表mydbCon()
    {
        SqlConnection的SqlCon =新的SqlConnection();
        SqlCon.Open();
        的SqlCommand SqlComm =新的SqlCommand();
        SqlComm.Connection = SqlCon;
        SqlComm.CommandType = CommandType.Text;
        SqlComm.CommandText =从tbl_login选择密码其中username ='奥比';;
        数据表EmployeeDt =新的DataTable(tbl_login);
        SqlDataAdapter的SQLDA =新SqlDataAdapter的(SqlComm);
        SqlDa.Fill(EmployeeDt);
        返回EmployeeDt;
    }


解决方案

添加Json.Net与的包管理器控制台或通过的对话框

和则:

  [的WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)
公共字符串mydbCon()
{
    SqlConnection的SqlCon =新的SqlConnection();
    SqlCon.Open();
    的SqlCommand SqlComm =新的SqlCommand();
    SqlComm.Connection = SqlCon;
    SqlComm.CommandType = CommandType.Text;
    SqlComm.CommandText =从tbl_login选择密码其中username ='奥比';;
    数据表EmployeeDt =新的DataTable(tbl_login);
    SqlDataAdapter的SQLDA =新SqlDataAdapter的(SqlComm);
    SqlDa.Fill(EmployeeDt);
    返回JsonConvert.SerializeObject(EmployeeDt,Formatting.Indented);
}

下面是Json.Net上的NuGet库的链接: http://nuget.org/packages /Newtonsoft.Json

I have a asp.net web service accessing value from database using a datatable and my javascript goes like this in eclipse where it is running in android simulator using phonegap but this code seems not to be working .pls help me out.

<script type="text/javascript">
     function GetAge() {
         jQuery.support.cors = true;
          $.mobile.allowCrossDomainPages = true;
           $.ajax({
          data: datas, 
             type: "POST",
            async: false,
            dataType: "json",
             contentType: "application/json; charset=utf-8",   
             url: "http://localhost:50113/Service1.asmx/mydbCon?wsdl",
             success: function (msg) {
                $('#divToBeWorkedOn').html(msg.text); 
             },
             error: function (e) {
                 $('#divToBeWorkedOn').html("unavailable");
             }
         });
     } 
  </script>  

and my service1.asmx goes like this

[WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public DataTable mydbCon()
    {
        SqlConnection SqlCon = new SqlConnection("");
        SqlCon.Open();
        SqlCommand SqlComm = new SqlCommand();
        SqlComm.Connection = SqlCon;
        SqlComm.CommandType = CommandType.Text;
        SqlComm.CommandText = "select password from tbl_login where username='aby';";
        DataTable EmployeeDt = new DataTable("tbl_login");
        SqlDataAdapter SqlDa = new SqlDataAdapter(SqlComm);
        SqlDa.Fill(EmployeeDt);
        return EmployeeDt;
    }

解决方案

Add Json.Net to your solution with the package manager console or by the dialog

and then:

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string mydbCon()
{
    SqlConnection SqlCon = new SqlConnection("");
    SqlCon.Open();
    SqlCommand SqlComm = new SqlCommand();
    SqlComm.Connection = SqlCon;
    SqlComm.CommandType = CommandType.Text;
    SqlComm.CommandText = "select password from tbl_login where username='aby';";
    DataTable EmployeeDt = new DataTable("tbl_login");
    SqlDataAdapter SqlDa = new SqlDataAdapter(SqlComm);
    SqlDa.Fill(EmployeeDt);
    return JsonConvert.SerializeObject(EmployeeDt, Formatting.Indented);
}

Here is the link of Json.Net on the nuget gallery: http://nuget.org/packages/Newtonsoft.Json

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