java - Use properties file in Spring -

i newbie spring framework. in spring application there details below details needs maintain in properties file.

transaction name     transaction id txt_cco              = 70001 txt_cci              = 70002 txt_ssm              = 20005 

in controller, there action below.

@requestmapping(value = {"/validatewalletamount**"}, method = requestmethod.get) public @responsebody string validatewalletamount(@requestparam("mobile") string mobile,                                            @requestparam("pin") string merchant_pin,                                            @requestparam("provider") string provider,                                            @requestparam("currency_type") string currency_type,                                            @requestparam("amount") string amount) {     //to - txntypeid provider      return "02 | 1000.00 | 0.00"; } 

according request parameter provider need relevant transaction type id. example, if provider txt_cco transaction type id should 70001.

can please me achieve this

i have 2 options

1. load properties using <util:properties />
2. use @propertysource , environment abstraction.

using <util:properties />

to load properties file can use propertiesfactorybean or easier <util:properties /> tag (which uses propertiesfactorybean underneath easier configure). see here more information.

simply add following xml configuration

<util:properties id="transactions" location="classpath:transaction.properties" /> 

now have properties bean named transactions can inject controller after can use obtain property need.

@autowired private properties transactions; 

using @propertysource , environment abstraction

another solution add @configuration class @propertysource load properties. after can use environment obtain properties. see environment section in reference guide more information.

@configuration @propertysource("classpath:transaction.properties") public class myconfiguration {} 

in controller can use environment obtain properties.

@autowired private environment env; 

resource support

of course spring property support usable resource loading approach of spring. file: , http: prefixes work well, default loading rules applying used applicationcontext.