本文介绍了我如何使用ASP.NET中的Web服务从数据库获取数据(返回JSON和XML)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 这里我从数据库中获取数据(sqlserver) 我怎样才能得到请帮助我Frineds ... 使用系统; 使用 System.Collections.Generic; 使用 System.Linq; 使用 System.Web; 使用 System.Web.Services; 使用 System.Web.Script.Services; 使用 System.Web.Script.Serialization; [WebService] /// < 摘要 > /// myserviceclass的摘要说明 /// < / summary > public class myserviceclass { [WebMethod] public employee2 [] GetEmployessXML() { employee2 [] emp = new employee2 [] { new employee2() { Id = 101 , Name = Nitin ,余额= 10000 }, new employee2() { Id = 102 , Name = Dinesh,余额= 100000 } }; return \\ temp; } [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public string GetEmplyeeJson() { employee2 [] emp = new employee2 [] { new employee2() { Id = 101 , Name = Pandu, balance = 1000 }, new employee2() { Id = 102 , Name = Tanu ,余额= 2000 } }; return new JavaScriptSerializer()。Serialize(emp); } } 我的尝试: 使用System; 使用System.Collections.Generic; 使用System.Linq; 使用System.Web; 使用System.Web.Services; 使用System.Web.Script.Services; 使用System.Web。 Script.Serialization; [WebService] ///< summary> ///摘要myserviceclass的描述 /// 公共类myserviceclass { [WebMethod] public employee2 [] GetEmployessXML() { employee2 [] emp = new employee2 [] { new employee2() { Id = 101, 名称=Nitin, 余额= 10000 }, 新员工2() { Id = 102, 名称=Dinesh, 余额= 100000 } }; 返回emp; } [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] 公共字符串GetEmplyeeJson() { employee2 [] emp = new employee2 [] { new employee2() { Id = 101, 名称=Pandu, 余额= 1000 }, 新员工2() { Id = 102, Name =Tanu, 余额= 2000 } }; 返回新的JavaScriptSerializer()。Serialize(emp); } } 解决方案 Regardi第二种JSON方法: 请注意,如果你需要这一行: [ScriptMethod(ResponseFormat = ResponseFormat.Json)] WebMethod必须是静态的,请看链接: WebForm背后的代码中的静态WebMethod [ ^ ]和asp.net - 为什么WebMethod声明为静态? - Stack Overflow [ ^ ] 编辑:认为这是指需要静态方法的网络表单,但是你的web服务方法的实现看起来是正确的。 [WebMethod] public static string GetEmplyeeJson(){...} 可以访问json数组,例如: var json = JSON.parse(响应.d); 注意使用.NET和AJAX时的.d asp.net - JSON中的.d是什么意思? - 堆栈溢出 [ ^ ] here i am Get data from database(sqlserver)how can i get please Help me Frineds...using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Services;using System.Web.Script.Services;using System.Web.Script.Serialization;[WebService]/// <summary>/// Summary description for myserviceclass/// </summary>public class myserviceclass{ [WebMethod] public employee2[] GetEmployessXML() { employee2[] emp = new employee2[] { new employee2() { Id=101, Name="Nitin", balance=10000 }, new employee2() { Id=102, Name="Dinesh", balance=100000 } }; return emp; } [WebMethod] [ScriptMethod(ResponseFormat=ResponseFormat.Json)]public string GetEmplyeeJson(){ employee2[] emp = new employee2[]{ new employee2() { Id=101, Name="Pandu", balance=1000 }, new employee2() { Id=102, Name="Tanu", balance=2000 } }; return new JavaScriptSerializer().Serialize(emp);}}What I have tried:using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Services;using System.Web.Script.Services;using System.Web.Script.Serialization;[WebService] /// <summary>/// Summary description for myserviceclass/// public class myserviceclass{ [WebMethod] public employee2[] GetEmployessXML() { employee2[] emp = new employee2[] { new employee2() { Id=101, Name="Nitin", balance=10000 }, new employee2() { Id=102, Name="Dinesh", balance=100000 } }; return emp; } [WebMethod] [ScriptMethod(ResponseFormat=ResponseFormat.Json)]public string GetEmplyeeJson(){ employee2[] emp = new employee2[]{ new employee2() { Id=101, Name="Pandu", balance=1000 }, new employee2() { Id=102, Name="Tanu", balance=2000 } }; return new JavaScriptSerializer().Serialize(emp);}} 解决方案 Regarding the 2nd method for JSON:Note sure if you require this line: [ScriptMethod(ResponseFormat=ResponseFormat.Json)]WebMethod must be static see links:Static WebMethod in Code Behind WebForm[^] and asp.net - Why WebMethod declared as Static? - Stack Overflow[^]Edit: thought this was referring to web forms where static methods would be required, but your implementation of webservice methods seeems correct.[WebMethod] public static string GetEmplyeeJson() { ... } The json array can be accessed such as:var json = JSON.parse(response.d);Note the .d when using .NET and AJAX asp.net - What does .d in JSON mean? - Stack Overflow[^] 这篇关于我如何使用ASP.NET中的Web服务从数据库获取数据(返回JSON和XML)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!
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