ajax的访问 WebService 的方法

如果想用ajax进行访问首先在web.config里进行设置

添加在

<system.web>节点之下

这样就是可以通过url进行访问了不然就会报错

然后直接亮代码代码也是网上找到的如有雷同，请联系本人

[WebService(Namespace = "http://tempuri.org/")]
   [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
   [System.ComponentModel.ToolboxItem(false)]
   // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
   [System.Web.Script.Services.ScriptService]
   public class WebService1 : System.Web.Services.WebService
   {
       /// <summary>
       /// 无参数
       /// </summary>
       /// <returns></returns>
       [WebMethod]
       public string HelloWorld()
       {
           return "Hello World ";
       }
 
       /// <summary>
       /// 带参数
       /// </summary>
       /// <param name="value1"></param>
       /// <param name="value2"></param>
       /// <param name="value3"></param>
       /// <param name="value4"></param>
       /// <returns></returns>
       [WebMethod]
       public string GetWish(string value1, string value2, string value3, int value4)
       {
           return string.Format("祝您在{3}年里 {0}、{1}、{2}", value1, value2, value3, value4);
       }
 
       /// <summary>
       /// 返回集合
       /// </summary>
       /// <param name="i"></param>
       /// <returns></returns>
       [WebMethod]
       public List<int> GetArray(int i)
       {
           List<int> list = new List<int>();
 
           while (i >= 0)
           {
               list.Add(i--);
           }
 
           return list;
       }
 
       /// <summary>
       /// 返回一个复合类型
       /// </summary>
       /// <returns></returns>
       [WebMethod]
       public Class1 GetClass()
       {
           return new Class1 { ID = "1", Value = "牛年大吉" };
       }
 
 
       /// <summary>
       /// 返回XML
       /// </summary>
       /// <returns></returns>
       [WebMethod]
       public DataSet GetDataSet()
       {
           DataSet ds = new DataSet();
           DataTable dt = new DataTable();
           dt.Columns.Add("ID", Type.GetType("System.String"));
           dt.Columns.Add("Value", Type.GetType("System.String"));
           DataRow dr = dt.NewRow();
           dr["ID"] = "1";
           dr["Value"] = "新年快乐";
           dt.Rows.Add(dr);
           dr = dt.NewRow();
           dr["ID"] = "2";
           dr["Value"] = "万事如意";
           dt.Rows.Add(dr);
           ds.Tables.Add(dt);
           return ds;
       }
 
 
   }
   //自定义的类，只有两个属性
   public class Class1
   {
       public string ID { get; set; }
       public string Value { get; set; }
   }

　　然后是ajax的代码

<script type="text/javascript">
 
 
        //无参数调用
        $(document).ready(function() {
            $('#btn1').click(function() {
                $.ajax({
                    type: "POST",   //访问WebService使用Post方式请求
                    contentType: "application/json", //WebService 会返回Json类型
                    url: "WebService1.asmx/HelloWorld", //调用WebService的地址和方法名称组合 ---- WsURL/方法名
                    data: "{}",         //这里是要传递的参数，格式为 data: "{paraName:paraValue}",下面将会看到      
                    dataType: 'json',
                    success: function(result) {     //回调函数，result，返回值
                        $('#dictionary').append(result.d);
                    }
                });
            });
        });
 
 
        //有参数调用
        $(document).ready(function() {
            $("#btn2").click(function() {
                $.ajax({
                    type: "POST",
                    contentType: "application/json",
                    url: "WebService1.asmx/GetWish",
                    data: "{value1:'心想事成',value2:'万事如意',value3:'牛牛牛',value4:2009}",
                    dataType: 'json',
                    success: function(result) {
                        $('#dictionary').append(result.d);
                    }
                });
            });
        });
         
         
        //返回集合（引用自网络，很说明问题）
        $(document).ready(function() {
            $("#btn3").click(function() {
                $.ajax({
                    type: "POST",
                    contentType: "application/json",
                    url: "WebService1.asmx/GetArray",
                    data: "{i:10}",
                    dataType: 'json',
                    success: function(result) {
                        $(result.d).each(function() {
                            //alert(this);
                            $('#dictionary').append(this.toString() + " ");
                            //alert(result.d.join(" | "));
                        });
                    }
                });
            });
        });
 
 
        //返回复合类型
        $(document).ready(function() {
            $('#btn4').click(function() {
                $.ajax({
                    type: "POST",
                    contentType: "application/json",
                    url: "WebService1.asmx/GetClass",
                    data: "{}",
                    dataType: 'json',
                    success: function(result) {
                        $(result.d).each(function() {
                            //alert(this);
                            $('#dictionary').append(this['ID'] + " " + this['Value']);
                            //alert(result.d.join(" | "));
                        });
 
                    }
                });
            });
        });
 
        //返回DataSet(XML)
        $(document).ready(function() {
            $('#btn5').click(function() {
                $.ajax({
                    type: "POST",
                    url: "WebService1.asmx/GetDataSet",
                    data: "{}",
                    dataType: 'xml', //返回的类型为XML ，和前面的Json，不一样了
                    success: function(result) {
                    //演示一下捕获
                        try {  
                            $(result).find("Table1").each(function() {
                                $('#dictionary').append($(this).find("ID").text() + " " + $(this).find("Value").text());
                            });
                        }
                        catch (e) {
                            alert(e);
                            return;
                        }
                    },
                    error: function(result, status) { //如果没有上面的捕获出错会执行这里的回调函数
                        if (status == 'error') {
                            alert(status);
                        }
                    }
                });
            });
        });
 
 
 
 
        //Ajax 为用户提供反馈，利用ajaxStart和ajaxStop 方法，演示ajax跟踪相关事件的回调，他们两个方法可以添加给jQuery对象在Ajax前后回调
        //但对与Ajax的监控，本身是全局性的
        $(document).ready(function() {
            $('#loading').ajaxStart(function() {
                $(this).show();
            }).ajaxStop(function() {
                $(this).hide();
            });
        });
 
        // 鼠标移入移出效果，多个元素的时候，可以使用“，”隔开
        $(document).ready(function() {
            $('div.button').hover(function() {
                $(this).addClass('hover');
            }, function() {
                $(this).removeClass('hover');
            });
        });
         
         
    </script>

　　然后就是这5个ajax得到的响应

posted on 2018-01-10 16:59 Q11三工鸟yue 阅读(200) 评论(0) 编辑收藏举报