Data: "{}". If the data is empty, you must pass "{}". Otherwise, the returned data is in XML format. The system prompts parsererror.
1. Write four WebService Methods
[WebService (namespace = "http://tempuri.org/")]
[Webservicebinding (conformsto = wsiprofiles. basicprofile1_1)]
[Scriptservice] // enables WebService to pass in JSON parameters and return results in JSON format
[Generatescripttype (typeof (person)] // not necessary, but it is recommended to add (if another complex type is nested in person, it must be declared)
[Toolboxitem (false)]
Public class webservice1: system. Web. Services. WebService
{
/// <Summary>
/// No parameters
/// </Summary>
/// <Returns> </returns>
[Webmethod]
Public String helloworld ()
{
Return "Hello World ";
}
/// <Summary>
/// Input parameters
/// </Summary>
/// <Param name = "name"> </param>
/// <Returns> </returns>
[Webmethod]
Public String Hello (string name)
{
Return string. Format ("Hello {0}", name );
}
/// <Summary>
/// Return the generic list
/// </Summary>
/// <Param name = "I"> </param>
/// <Returns> </returns>
[Webmethod]
Public list <int> createarray (int I)
{
List <int> List = new list <int> ();
While (I> = 0)
{
List. Add (I --);
}
Return list;
}
/// <Summary>
/// Return complex types
/// </Summary>
/// <Param name = "name"> </param>
/// <Param name = "Age"> </param>
/// <Returns> </returns>
[Webmethod]
Public Person getperson (string name, int age)
{
Return new person ()
{
Name = Name,
Age = Age
};
}
}
/// <Summary>
/// Complex type
/// </Summary>
Public class person
{
Public string name {Get; set ;}
Public int age {Get; set ;}
}
2. Compile js to call the above method
<% @ Page Language = "C #" autoeventwireup = "true" codebehind = "webform1.aspx. cs" inherits = "webapplication1.webform1" %>
<! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<HTML xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> No title page </title>
<Style type = "text/CSS">
Input
{
Width: 200px;
}
</Style>
<SCRIPT type = "text/JavaScript" src = "jquery-1 [1]. 2.6.min.js"> </SCRIPT>
<SCRIPT type = "text/JavaScript">
$ (Function (){
/*
1. the WebService request type is post, and the WebService URL is "[webserviceurl]/[webmethod]"
2. contenttype is declared as JSON
3. data must be transmitted in JSON string format.
4. After the ype is set to JSON, the result is directly the returned JSON object.
*/
// Call the method without Parameters
$ ("# Btnhelloworld"). Click (function (){
$. Ajax ({
Type: "Post ",
Contenttype: "application/JSON ",
URL: "webservice1.asmx/helloworld ",
Data :"{}",
Datatype: 'json ',
Success: function (result ){
Alert (result. D );
}
});
});
// Input 1 parameter
$ ("# Btnhello"). Click (function (){
$. Ajax ({
Type: "Post ",
Contenttype: "application/JSON ",
URL: "webservice1.asmx/Hello ",
Data: "{Name: 'kimogigii '}",
Datatype: 'json ',
Success: function (result ){
Alert (result. D );
}
});
});
// Returns the generic list
$ ("# Btnarray"). Click (function (){
$. Ajax ({
Type: "Post ",
Contenttype: "application/JSON ",
URL: "webservice1.asmx/createarray ",
Data: "{I: 10 }",
Datatype: 'json ',
Success: function (result ){
Alert (result. D. Join ("| "));
}
});
});
// Return complex types
$ ("# Btnperson"). Click (function (){
$. Ajax ({
Type: "Post ",
Contenttype: "application/JSON ",
URL: "webservice1.asmx/getperson ",
Data: "{Name: 'kimogigi', age: 26 }",
Datatype: 'json ',
Success: function (result ){
VaR person = result. D;
VaR showtext = [];
For (var p in person ){
Showtext. Push (p + ":" + person [p]);
}
Alert (showtext. Join ("\ r \ n "));
}
});
});
});
</SCRIPT>
</Head>
<Body>
<Form ID = "form1" runat = "server">
<P>
<Input type = "button" id = "btnhelloworld" value = "helloworld"/>
</P>
<P>
<Input type = "button" id = "btnhello" value = "hello"/>
</P>
<P>
<Input type = "button" id = "btnarray" value = "createarray"/>
</P>
<P>
<Input type = "button" id = "btnperson" value = "getperson"/>
</P>
</Form>
</Body>
</Html>
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