WSO2EI集成hello world api

Question

我刚刚开始使用云技术，并试图实现一个简单的hello世界示例。我正在使用新的wso2企业集成服务器。我正在尝试设置一个简单的API。

我实现1端点：

<endpoint xmlns="http://ws.apache.org/ns/synapse"> 
    <address uri="http://192.168.1.100:9191/v1/hello"> 
     <suspendOnFailure> 
     <progressionFactor>1.0</progressionFactor> 
     </suspendOnFailure> 
     <markForSuspension> 
     <retriesBeforeSuspension>0</retriesBeforeSuspension> 
      <retryDelay>0</retryDelay> 
     </markForSuspension> 
    </address> 
</endpoint> 

我实现了两个序列：

<?xml version="1.0" encoding="UTF-8"?> 
<sequence name="HelloWorldIN" xmlns="http://ws.apache.org/ns/synapse"> 
    <send> 
     <endpoint key="gov:/HelloWorld"/> 
    </send> 
</sequence> 

和

<?xml version="1.0" encoding="UTF-8"?> 
<sequence name="HelloWorldOUT" xmlns="http://ws.apache.org/ns/synapse"> 
    <send/> 
</sequence> 

终于API本身

<api xmlns="http://ws.apache.org/ns/synapse" name="HelloWorld" context="/helloworld" hostname="192.168.1.100" port="9191"> 
    <resource methods="GET" uri-template="/v1/hello" inSequence="HelloWorldIN" outSequence="HelloWorldOUT"/> 
</api> 

---

当我对此API执行GET（http://192.168.1.162:8280/helloworld/v1/hello）请求时，我得到一个202接受的响应，没有数据。任何帮助，将不胜感激。

编辑： 这是完整的配置：

<?xml version="1.0" encoding="UTF-8"?> 
<definitions xmlns="http://ws.apache.org/ns/synapse"> 
    <registry provider="org.wso2.carbon.mediation.registry.WSO2Registry"> 
     <parameter name="cachableDuration">15000</parameter> 
    </registry> 
    <taskManager provider="org.wso2.carbon.mediation.ntask.NTaskTaskManager"/> 
    <sequence name="HelloWorldOUT"> 
     <send buildmessage="true"/> 
    </sequence> 
    <sequence name="fault"> 
     <!-- Log the message at the full log level with the ERROR_MESSAGE and the ERROR_CODE--> 
     <log level="full"> 
      <property name="MESSAGE" value="Executing default 'fault' sequence"/> 
      <property expression="get-property('ERROR_CODE')" name="ERROR_CODE"/> 
      <property expression="get-property('ERROR_MESSAGE')" name="ERROR_MESSAGE"/> 
      </log> 
     <!-- Drops the messages by default if there is a fault --> 
     <drop/> 
    </sequence> 
    <sequence name="main"> 
     <in> 
      <!-- Log all messages passing through --> 
      <log level="full"/> 
      <!-- ensure that the default configuration only sends if it is one of samples --> 
      <!-- Otherwise Synapse would be an open proxy by default (BAD!)    --> 
      <filter regex="http://localhost:9000.*" source="get-property('To')"> 
       <!-- Send the messages where they have been sent (i.e. implicit "To" EPR) --> 
       <send/> 
      </filter> 
     </in> 
     <out> 
      <send/> 
     </out> 
     <description>The main sequence for the message mediation</description> 
    </sequence> 
    <sequence name="HelloWorldIN"> 
     <send> 
      <endpoint name="gov//HelloWorld"> 
       <address uri="http://192.168.1.100:9191/v1/hello"/> 
      </endpoint> 
     </send> 
    </sequence> 
    <api context="/helloworld" hostname="192.168.1.100" 
    name="HelloWorld" port="9191" statistics="enable" trace="enable"> 
     <resource inSequence="HelloWorldIN" methods="GET" 
     outSequence="HelloWorldOUT" uri-template="*"/> 
    </api> 
    <!-- You can add any flat sequences, endpoints, etc.. to this synapse.xml file if you do 
*not* want to keep the artifacts in several files --> 

Answer 1

首先要做的就是改变主序。我已经按照顺序将它发送给我：

<?xml version="1.0" encoding="UTF-8"?> 
<sequence name="main" xmlns="http://ws.apache.org/ns/synapse"> 
    <in> 
     <!-- Log all messages passing through --> 
     <log level="full"/> 
     <!-- ensure that the default configuration only sends if it is one of samples --> 
     <!-- Otherwise Synapse would be an open proxy by default (BAD!)    --> 
     <filter regex="http://localhost:9000.*" 
     source="get-property('To')" xmlns:ns="http://org.apache.synapse/xsd"> 
      <then> 
       <!-- Send the messages where they have been sent (i.e. implicit "To" EPR) --> 
       <send/> 
      </then> 
      <else> 
       <log/> 
       <sequence key="gov:/HelloWorldIN"/> 
      </else> 
     </filter> 
    </in> 
    <out> 
     <send/> 
    </out> 
    <description>The main sequence for the message mediation</description> 
</sequence> 

确保您的api使用有意义的名称。这使得配置esb更容易。如果你的API在同一个子域上监听，则不需要URL重写介体。我改变了我的API的上下文来完成这个任务。

<api xmlns="http://ws.apache.org/ns/synapse" name="HelloWorld" context="/hello" hostname="192.168.1.100" port="9191"> 
    <resource methods="GET" inSequence="HelloWorldIN" outSequence="HelloWorldOUT"/> 
</api>