在Spring中使用属性文件 [英] Use properties file in Spring

问题描述

我是Spring框架的新手。在我的Spring应用程序中有一些细节，如下所示，需要在属性文件中维护这些细节。

I am a newbie to Spring framework. In my Spring application there are some details as below those details needs to be maintain in a properties file.

Transaction Name     Transaction Id
TXT_CCO              = 70001
TXT_CCI              = 70002
TXT_SSM              = 20005

In我的控制器，有一个动作如下。

In my controller, there is an action as 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 DO - Get txnTypeId by provider

    return "02 | 1000.00 | 0.00";
}

根据请求参数提供商我需要获取相关的交易类型ID。例如，如果提供商 TXT_CCO ，则交易类型ID应为 70001 。

According to the request parameter provider I need to get the relevant transaction type id. As an example, if the provider is TXT_CCO transaction type id should be 70001.

有人可以帮助我实现这个目标

Can someone please help me to achieve this

推荐答案

我会说你有两个选择

1. 使用< util：properties />

加载属性
2. 使用 @PropertySource 和环境抽象。

1. Load the properties using <util:properties />
2. Use @PropertySource and the Environment abstraction.

使用< util：properties />

简单加载一个属性文件，你可以使用 PropertiesFactoryBean 或更简单的< util：properties /> 标签（使用 PropertiesFactoryBean 在下面，但更容易配置。）参见这里了解更多信息。

Using <util:properties />

To simply load a properties file you can use the PropertiesFactoryBean or easier the <util:properties /> tag (which uses the PropertiesFactoryBean underneath but is just easier to configure). See here for more information.

只需将以下内容添加到xml配置中

Simply add the following to your xml configuration

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

现在你有一个属性 bean命名为交易您可以将其注入您的控制器，之后您可以使用它来获得您需要的房产。

Now you have a Properties bean named transactions which you can inject into your controller after which you can use that to obtain the property you need.

@Autowired
private Properties transactions;

使用 @PropertySource 和环境抽象

另一个解决方案是添加一个 @Configuration 类 @PropertySource 加载属性。之后，您可以使用环境来获取属性。请参阅 环境 部分了解更多信息。

Using @PropertySource and Environment abstraction

Another solution is to add a @Configuration class with a @PropertySource to load the properties. After that you can use the Environment to obtain the properties. See the Environment section in the reference guide for more information.

@Configuration
@PropertySource("classpath:transaction.properties")
public class MyConfiguration {}

在您的控制器中，您可以使用环境来获取属性。

In your controller you can use the Environment to obtain the properties.

@Autowired
private Environment env;

资源支持

当然Spring属性支持可用于资源加载方法。所以文件：和 http：前缀也可以使用，以及适用于使用过的<$的默认加载规则c $ c> ApplicationContext 。

Of course the Spring property support is usable with the Resource loading approach of Spring. So file: and http: prefixes work as well, as well as the default loading rules applying to the used ApplicationContext.

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