Web services 使用webservices和ajaxjquery时遇到插入错误
当我用HTML填写表单时,我面临的错误是500。我的Web服务不工作。当我复制粘贴URL并在新表中打开时,它会显示以下错误Web services 使用webservices和ajaxjquery时遇到插入错误,web-services,asp.net-web-api,Web Services,Asp.net Web Api,当我用HTML填写表单时,我面临的错误是500。我的Web服务不工作。当我复制粘贴URL并在新表中打开时,它会显示以下错误 [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)] public void addNewUser(string name,string address,string email, string phoneno, string p
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)]
public void addNewUser(string name,string address,string email, string phoneno, string pin)
{
JavaScriptSerializer ser = new JavaScriptSerializer();
string Message = "";
try
{
using (MySqlConnection connection = new MySqlConnection(DBconnect.ConnectionString))
{
MySqlCommand cmd = new MySqlCommand("INSERT INTO users(name,address,email,phoneno,pin) VALUES(@name,@address,@email,@phoneno,@pin)", connection);
cmd.Parameters.AddWithValue("@name", name);
cmd.Parameters.AddWithValue("@address", address);
cmd.Parameters.AddWithValue("@email", email);
cmd.Parameters.AddWithValue("@phoneno", phoneno);
cmd.Parameters.AddWithValue("@pin", pin);
connection.Open();
cmd.ExecuteNonQuery();
connection.Close();
}
Message = "New User is added Successfully.";
}
catch (Exception ex)
{
Message = "Not Added";
}
var JSonData = new
{
Message = Message
};
HttpContext.Current.Response.Write(ser.Serialize(JSonData));
}
<script type="text/javascript">
$(document).ready(function () {
$("#btnAdduser").on('click', function (e)
{
e.preventDefault();
var All_users = {};
All_users.name = $('#name').val();
All_users.address = $('#address').val();
All_users.email = $('#email').val();
All_users.phoneno = $('#phoneno').val();
All_users.pin = $('#pin').val();
var jsonData = JSON.stringify({
All_users: All_users
});
$.ajax({
type: "POST",
url: "http://localhost/WebApi/WebService.asmx?op=addNewUser",
data: jsonData,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
error: OnErrorCall
});
function OnSuccess(response) {
var result = response.d;
if (result == "success") {
$("#msg").html("New record addded successfully :)").css("color", "green");
}
$("#name").val("");
$("#address").val("");
$("#email").val("");
$("#phoneno").val("");
$("#pin").val("");
}
function OnErrorCall(response) {
$("#msg").html("Error occurs :(").css("color", "red");
}
});
});
</script>
*
System.InvalidOperationException:缺少参数:名称。在
System.Web.Services.Protocols.ValueCollectionParameterReader.ReadNameValueCollection
收款处
System.Web.Services.Protocols.HttpServerProtocol.ReadParameters
在
System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest
*我试着复制你的案例。 问题是UseHttpGet=true,更改为UseHttpGet=false,并在类[System.Web.Script.Services.ScriptService]中检查该属性 并通过WebService.asmx/addNewUser更新您的AJAX调用,就像这样,它成功了
<script
src="https://code.jquery.com/jquery-3.3.1.js"
integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous"></script>
<button id="btnAdduser">Test</button>
<script type="text/javascript">
$(document).ready(function () {
$("#btnAdduser").on('click', function (e)
{
e.preventDefault();
var All_users = {};
All_users.name = "Hien";
All_users.address = "Test";
All_users.email = "Test";
All_users.phoneno = "Test";
All_users.pin = "123";
var jsonData = JSON.stringify({
data: All_users
});
$.ajax({
type: "POST",
url:
"http://localhost/WebApi/WebService.asmx/addNewUser",
data: JSON.stringify(All_users),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
error: OnErrorCall
});
function OnSuccess(response) {
var result = response.d;
if (result == "success") {
$("#msg").html("New record addded successfully :)").css("color", "green");
}
$("#name").val("");
$("#address").val("");
$("#email").val("");
$("#phoneno").val("");
$("#pin").val("");
}
function OnErrorCall(response) {
$("#msg").html("Error occurs :(").css("color", "red");
}
});
});
</script>
请发布您的ajax调用嘿,兄弟,我在上面发布了ajax调用。您是否尝试了数据:JSON.stringifyjsonData?不,我没有。你能和我分享一下语法吗。?谢谢您有一个post方法,因此您不能在浏览器中使用它,因为只支持get方法。你需要一个像邮递员这样的工具来看看发生了什么。开始调试,检查您的服务正在接收什么,您正在发送什么,等等