我想写一个例子来将数据从一个页面传递到另一个页面，但是有些事情不正确。
index.mustache 文件
{{% handler:PerfectHandler}}<!DOCTYPE html>
<html lang="en">
<head>
<title>{{title}}</title>
<script src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
</head>
<body>
<h3>Hello!</h3>
<form method="POST" action="welcome" id="sendText">
<input type="text" value="" placeholder="sometext" id="sometext" required />
<button>Submit</button>
</form>
<script>
$(document).ready(function() {
$('#sendText').submit(function() {
var sometext = $('#sometext').val()
if (!sometext) {
alert('Please enter some text!')
} else {
$.ajax({
url: "welcome",
type: "post",
data: {'sometext':sometext},
success: function(data, textStatus, jqXHR) {
console.log('**data sent via ajax.**');
console.log(data);
document.location = '/welcome'
},
error: function(jqXHR, textStatus, errorThrown) {
console.error("The following error occurred: "+ textStatus, errorThrown);
}
});
}
return false
})
});
</script>
处理程序类 // // PerfectHandlers.swift //
import PerfectLib
// This is the function which all Perfect Server modules must expose.
// The system will load the module and call this function.
// In here, register any handlers or perform any one-time tasks.
public func PerfectServerModuleInit() {
// Register our handler class with the PageHandlerRegistry.
// The name "PerfectHandler", which we supply here, is used within a mustache template to associate the template with the handler.
PageHandlerRegistry.addPageHandler("PerfectHandler") {
// This closure is called in order to create the handler object.
// It is called once for each relevant request.
// The supplied WebResponse object can be used to tailor the return value.
// However, all request processing should take place in the `valuesForResponse` function.
(r:WebResponse) -> PageHandler in
return PerfectHandler()
}
// This handler takes the new user information and puts it in the database.
PageHandlerRegistry.addPageHandler("WelcomeHandler") {
return WelcomeHandler()
}
}
// Handler class
// When referenced in a mustache template, this class will be instantiated to handle the request
// and provide a set of values which will be used to complete the template.
class PerfectHandler: PageHandler { // all template handlers must inherit from PageHandler
// This is the function which all handlers must impliment.
// It is called by the system to allow the handler to return the set of values which will be used when populating the template.
// - parameter context: The MustacheEvaluationContext which provides access to the WebRequest containing all the information pertaining to the request
// - parameter collector: The MustacheEvaluationOutputCollector which can be used to adjust the template output. For example a `defaultEncodingFunc` could be installed to change how outgoing values are encoded.
func valuesForResponse(context: MustacheEvaluationContext, collector: MustacheEvaluationOutputCollector) throws -> MustacheEvaluationContext.MapType {
// The dictionary which we will return
var values = [String:Any]()
values["title"] = "Perfect Project Template"
// Return the values
// These will be used to populate the template
return values
}
}
欢迎.mustache 文件
{{% handler:WelcomeHandler}}<!DOCTYPE html>
<html lang="en">
<head>
<title>Welcome!</title>
</head>
<body>
<h1>Message: {{text}}</h1>
</body>
</html>`
WelcomeHandler.swift 文件
import PerfectLib
func valuesForResponse(context: MustacheEvaluationContext, collector: MustacheEvaluationOutputCollector) throws -> MustacheEvaluationContext.MapType {
// The dictionary which we will return
var values = MustacheEvaluationContext.MapType()
if let _ = context.webResponse, let request = context.webRequest {
if request.requestMethod() == "POST" {
if let text = request.param("sometext") {
print("\(text) = sometext")
values["text"] = text
}
}
}
return values
}
}
在我添加一些文本并按下提交后，如上图 1 所示，我的浏览器显示不会在浏览器中显示消息，而是在控制台中显示，如图 2 所示。
