How to setProperty in spring-context.xml

Question

I want to set property in spring-context.xml file and instantiate the class which have one setter method of long dataType.

package com.mob.test;

class Test
{

private long timeInMillis;

//getter and setter
}

test.properties

TIME_IN_MINUTES=10

Spring-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">


    <context:property-placeholder location="classpath:test.properties"/>    

    <bean id="ready"
        class="com.mob.test.Test">
        <property name="timeInMillis" value="${TIME_IN_MINUTES}*60*1000"/>
    </bean>
</beans>

gives NumberFormateException.

How can i solve this problem.

Value is a String right??I would inject the number in my class , I would String.toInteger(number) and make the calculations inside my class. — Tsakiroglou Fotis, May 16 '17 at 12:06
yes we inject it as a string. Is there any other way of doing it? — P.K.Hindustani, May 16 '17 at 12:11
Check here , do the same and make your calculation inside class. http://stackoverflow.com/questions/9259819/how-to-read-values-from-properties-file GoodLuck!! ;) — Tsakiroglou Fotis, May 16 '17 at 12:12
Its a textfile you are injecting from after all. So it does not support very complex computations. If you want the computation to be done just add a property timeInMinutes to you class and if timeInMinutes gets set also set timeInMillis in your java code. Looks like better style to me atleast. — Dennis Ich, May 16 '17 at 12:12

score 1 · Accepted Answer · answered May 16 '17 at 12:13

1

Try with this:Expression support for defining bean definitions

#{ systemProperties['TIME_IN_MINUTES'] * 60 * 1000 }

answered May 16 '17 at 12:13

Erik Lucio

948
7
8

Thank you Eric Lucia for help.But I read TIME_IN_MINUTES from properties file. – P.K.Hindustani May 16 '17 at 12:32
1

– P.K.Hindustani May 16 '17 at 12:39

How to setProperty in spring-context.xml

test.properties

Spring-context.xml

1 Answers1