春季动态注射 [英] Dynamic injection in Spring

问题描述

我有2个税收实施类IndianTaxCalculation和USTAxCalculation，它们具有calculateTax()方法的实施.我需要根据用户登录名(无论是印度还是美国)动态填充类，因此应调用相应的Tax计算方法.我如何在春季实现这一目标?

I have 2 tax implementation classes IndianTaxCalculation and USTAxCalculation which have implementaions for calculateTax() method. I need to populate the class dynamically based on user login whether Indian or US, the respective Tax calculation method should call. How can i achieve this in Spring?

推荐答案

尝试如下操作:

@Autowired
@Qualifier("indian")
private TaxCalculation indianTax;
@Autowired
@Qualifier("us")
private TaxCalculation usTax;


public void calculateTaxes(Client client) {
   if (client.isFromIndia()) {
      indiaTax.calculate(client);
   } else if (client.isFromUS()) {
      usTax.calculate(client);
   }
}

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