Invoke Component in Mule | Call Java Class in Mule

Invoke Component in Mule | Call Java Class in Mule

Invoke component is used to invoke java class in Mule.

flow of Invoke component :

First of all write a simple java class containing a method to perform an operation.

We have class located in src/main/java

package com.test;

public class TestInvoke {

String str = null;

public String a(String str) {
System.out.println("Hello Himanshu" + " " + str);
this.str = str;

return "Hello Himanshu" + ' ' + str;


It will take payload which is passed as argument in method 'a'.

Invoke component configuration :

We have to give Bean defination of our java class in configuration XML.

       <spring:bean class="com.test.TestInvoke" name="testInvoke"></spring:bean>

URL : http://localhost:8085/api/invoke
Method : POST

Input :

Output :

XML project code : 

<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns:http="" xmlns="" xmlns:doc=""
    <spring:bean class="com.test.TestInvoke" name="testInvoke"></spring:bean>
    <http:listener-config name="HTTP_Listener_Configuration" host="" port="8085" basePath="/api" doc:name="HTTP Listener Configuration"/>
    <flow name="test_invokeFlow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/invoke" doc:name="HTTP"/>
        <invoke object-ref="testInvoke" method="a" doc:name="Invoke" name="invoke" methodArguments="#[payload]"/>

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