亲测 asp.net 调用 webservice返回json

前端脚本

 1 $("#sure").click(function () {
 2 var tbody = $("#putsigal tbody");
 3 var trs = tbody.find("tr");
 4 var houses = "{\"houses\":[";
 5 trs.each(function (i) {
 6 var housename = $(this).find(‘input[name="housename"]‘).val();
 7 var houseaddress = $(this).find(‘input[name="houseaddress"]‘).val();
 8 var area = $(this).find(‘input[name="area"]‘).val();
 9 alert(housename + "-" + houseaddress + "-" + area);
10 if (!housename || !houseaddress || !area) {
11 alert("第" + (i + 1) + "行的仓库信息不完整");
12 return false;
13 } else {
14 var num = /^[1-9][0-9]+(.[0-9]{1,2}){0,1}$/;
15 if (!num.test(area)) {
16 alert("第" + (i + 1) + "行的仓库面积输入不合法");
17 return false;
18 }
19
20 houses += "{\"housename\":" + "\"" + housename + "\",\"houseaddress\":\"" + houseaddress + "\",\"area\":\"" + area + "\"},";
21 }
22
23 })
24 var value = houses.substring(0, houses.length - 1);
25 value += "]}";
26
27 $.ajax({
28 type: "post",
29 url: "/Service.asmx/AddHouse",
30 dataType: "json",
31 //contentType: "application/json; charset=utf-8",
32 data: { house: value },
33 success: function (data) {
34 // alert(data);
35 if (data.result == "1") {
36 alert(data.message);
37 window.location.href = "WareHouse.aspx";
38 } else { alert(data.message); }
39 },
40 error: function(x, e) {
41 alert(x.responseText);
42 },
43
44 });
45 });

webservice 代码

[WebMethod]
public void AddHouse(string house)
{
HouseBll hb = new HouseBll();
JavaScriptSerializer js = new JavaScriptSerializer();
Context.Response.Clear();
Context.Response.ContentType = "aplication/json";
string jsontext = house;
List<Warehouse> hs = new List<Warehouse>();
Data result = new Data();
JsonToobj json = new JsonToobj();
hs = json.JsonToHouses(jsontext);
foreach (Warehouse h in hs)
{
try { hb.AddHouse(h); result.result = "1"; result.message = "成功插入"; }
catch { result.result = "0"; result.message = "发生异常"; }
}

Context.Response.Write(js.Serialize(result));
Context.Response.End();
}

 1 [WebMethod]
 2 public string AddHouse(string house)
 3 {
 4 HouseBll hb = new HouseBll();
 5 JavaScriptSerializer js = new JavaScriptSerializer();
 6 Context.Response.Clear();
 7 Context.Response.ContentType = "aplication/json";
 8 string jsontext = house;
 9 List<Warehouse> hs = new List<Warehouse>();
10 Data result = new Data();
11 JsonToobj json = new JsonToobj();
12 hs = json.JsonToHouses(jsontext);
13 foreach (Warehouse h in hs)
14 {
15 try { hb.AddHouse(h); result.result = "1"; result.message = "成功插入"; }
16 catch { result.result = "0"; result.message = "发生异常"; }
17 }
18
19 return js.Serialize(result);
20
21 }

可以看到这个方法在写法上只有标红部分不同以及返回类型不同，其余均相同。第一个写法返回纯粹的json字符串，前端可以直接识别（本例中的前端脚本采用的第一种写法），而第二种写法则返回的是xml格式。在其格式下将json字符串包含在节点中。这种方式显然不是最方便的。原因就在于webservice 直接返回的是xml格式，而采用response.write的方法则是直接将结果写入返回流中，因此没有额外的格式限制。