使用Anypoint Studio（MULE）在localhost上找不到资源 [英] Resource not found on localhost using Anypoint Studio (MULE)

问题描述

我尝试在MuleSoft网站上建议的教程。

I tried to do the tutorials suggested on the MuleSoft's website.

我首先从这个例子开始：

I first started with this example:

<?xml version="1.0" encoding="UTF-8"?>

<mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:tracking="http://www.mulesoft.org/schema/mule/ee/tracking" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
    xmlns:spring="http://www.springframework.org/schema/beans" version="EE-3.6.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
http://www.mulesoft.org/schema/mule/ee/tracking http://www.mulesoft.org/schema/mule/ee/tracking/current/mule-tracking-ee.xsd">
    <http:listener-config name="HTTP_Listener_Configuration" host="localhost" port="8084" doc:name="HTTP Listener Configuration"/>
    <flow name="basic_tutorialFlow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/" doc:name="HTTP"/>
        <expression-filter expression="#[payload != '/favicon.ico']" doc:name="Expression"/>
        <logger level="INFO" doc:name="Logger" message="Current payload is #[payload]"/>
        <set-payload doc:name="Set Payload" value="#['Hello, ' + message.inboundProperties.'http.request.path' + '. Today is ' + server.dateTime.format('dd/MM/yy') + '.' ]"/>
    </flow>
</mule>

可以在这里找到 http://www.mulesoft.org/documentation/display/current/Basic+Studio+Tutorial

我是使用拖放功能制作的，之后我在网站上复制了代码，以确保这不是我的错误。

I made it using the drag and drop feature and after that I copied the code on the website just to be sure it wasn't my mistake.

当我输入没有有效负载的URL时，它运行良好。我得到了这个回复

When I enter the URL with no payload it works well. I get this response

你好，/。今天是2015年1月23日。

Hello, /. Today is 23/01/15.

但是当我在教程中添加有效负载时，它不起作用：

But when I add a payload like in the tutorial it doesn't work :

找不到资源。

我也尝试过其他例子，只要我不输入有效负载就可以了。以下是控制台告诉我的内容：

I have tried other examples as well, as long as I don't enter a payload it works. Here is what the console tells me :

INFO  2015-01-23 10:33:55,614 [[basic_tutorial].HTTP_Listener_Configuration.worker.01] org.mule.api.processor.LoggerMessageProcessor: Current payload is {NullPayload}
INFO  2015-01-23 10:34:32,794 [[basic_tutorial].HTTP_Listener_Configuration.worker.01] org.mule.module.http.internal.listener.HttpListenerRegistry: No listener found for request: (GET)/asd
INFO  2015-01-23 10:34:32,796 [[basic_tutorial].HTTP_Listener_Configuration.worker.01] org.mule.module.http.internal.listener.HttpListenerRegistry: Available listeners are: [(*)/]
INFO  2015-01-23 10:34:36,205 [[basic_tutorial].HTTP_Listener_Configuration.worker.01] org.mule.module.http.internal.listener.HttpListenerRegistry: No listener found for request: (GET)/world
INFO  2015-01-23 10:34:36,205 [[basic_tutorial].HTTP_Listener_Configuration.worker.01] org.mule.module.http.internal.listener.HttpListenerRegistry: Available listeners are: [(*)/]

基本上问题是：

INFO  2015-01-23 10:34:36,205 [[basic_tutorial].HTTP_Listener_Configuration.worker.01] org.mule.module.http.internal.listener.HttpListenerRegistry: No listener found for request: (GET)/world

推荐答案

因此，使用3.6时，HTTP连接器发生了巨大变化。以下是一些更改：

So with 3.6, the HTTP connector has changed drastically. Here are some changes:

• 以前，HTTP连接器会将路径内容放在有效负载内。而且，现在您需要按原样调用路径。我的意思是，如今你的终端正在监听 http：// localhost：8084 / ，那就是你需要的地方发送请求。在 http：// localhost：8084 / HelloWorld 上发送请求将不匹配。

• Previously, the HTTP connector would place the contents of the path inside your payload. Moreover, now you need to invoke paths as is. What I mean is that nowadays, if your endpoint is listening on http://localhost:8084/, that's where you need to send the request. Sending a request on http://localhost:8084/HelloWorld will NOT match.

现在发送GET请求会将您的有效负载设置为NullPayload，这是有道理的，因为HTTP GET没有HTTP正文。

Sending a GET request now will set your payload to NullPayload, which admittedly makes sense, since an HTTP GET does not have an HTTP body.

我建议如下：让你的终端在路径上监听如下：

What I suggest is the following: have your endpoint listening on a path as follows:

<http:listener config-ref="HTTP_Listener_Configuration" path="/{name}" doc:name="HTTP"/>

请注意，我添加了一个名为name的占位符变量，您可以将其更改为任何您喜欢。然后，您可以按如下方式访问此占位符：

Notice that I've added a placeholder variable called "name", you can change this to whatever you like. You can then access this placeholder as follows:

#[message.inboundProperties['http.uri.params']['name']]

您可以使用此表达式返回一些奇特的字符串，如上所述：

You can use this expression to return some fancy string, as you're doing above:

<flow name="basic_tutorialFlow">
    <http:listener config-ref="HTTP_Listener_Configuration" path="/{name}"   doc:name="HTTP"/>
    <set-variable variableName="name" value="#[message.inboundProperties['http.uri.params']['name']]" />
    <set-payload doc:name="Set Payload" value="#['Hello, ' + flowVars['name'] + '. Today is ' + server.dateTime.format('dd/MM/yy') + '.' ]"/>
</flow>

干杯，
JS

Cheers, JS

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