SoybeanMilk

Now, let us have a look how you need to do when using SoybeanMilk.

First, you must write a Java class, just like the following calculator example: 

package my;
public class Calculator
{
        public int multiply(int a, int b)
        {
                return a*b;
        }
        public int add(int a, int b)
        {
                return a+b;
        }
}

Next, add the following configuration file named "soybean-milk.config.xml" to "/WEB-INF" folder: 

<?xml version="1.0" encoding="UTF-8"?>
<soybean-milk>
        <resolvers>
                <resolver id="calculator" class="my.Calculator" />
        </resolvers>

        <executables>
                <action name="/calculate.do">
                        <invoke>
                            multiplyResult = calculator.multiply(param.a, 10);
                        </invoke>
                        <invoke>
                            calculateResult = calculator.add(request.multiplyResult, 10)
                        </invoke>
                        
                        <!--or you can use XML mode like this
                        <invoke method="multiply" resolver="calculator" result-key="multiplyResult">
                            <arg>param.a</arg>
                            <arg>10</arg>
                        </invoke>
                        <invoke method="add" resolver="calculator" result-key="calculateResult">
                            <arg>request.multiplyResult</arg>
                            <arg>10</arg>
                        </invoke>
                        -->
                        
                        <target url="/calculate_result.jsp" />
                </action>
        </executables>
</soybean-milk>

Then, write the view page named "/calculate_result.jsp": 

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Calculate</title>
</head>
<body>
	Calculate: ${calculateResult}
</body>
</html>

And add the following XML codes to your "web.xml": 

<servlet>
    <servlet-name>dispatchServlet</servlet-name>
    <servlet-class>org.soybeanMilk.web.servlet.DispatchServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dispatchServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>

Put SoybeanMilk and it's dependent library 

soybeanMilk-[version].jar
commons-beanutils-1.8.2.jar
commons-logging-1.0.4.jar
commons-logging-api-1.1.jar
log4j-1.2.14.jar (Optional)
into "/WEB-INF/lib" folder.

That's OK!
Now, start the web server, and type "http://[youApp]/calculate.do?a=3" in your internet explorer, you will see "Calculate: 40".