如何在FeignClient中使用多个查询字符串参数调用url? [英] How to call url with multiple query string params in FeignClient?

问题描述

我尝试使用多个查询字符串参数调用Google API.奇怪的是，我找不到办法.

I try to call Google API with multiple query string parameters. And curiously, I can't find a way to do that.

这是我的FeignClient:

This is my FeignClient :

@FeignClient(name="googleMatrix", url="https://maps.googleapis.com/maps/api/distancematrix/json")
public interface GoogleMatrixClient {

    @RequestMapping(method=RequestMethod.GET, value="?key={key}&origins={origins}&destinations={destinations}")
    GoogleMatrixResult process(@PathVariable(value="key") String key,
                               @PathVariable(value="origins") String origins,
                               @PathVariable(value="destinations") String destinations);

}

问题在于&" RequestMapping value的字符替换为&

The problem is that '&' character of the RequestMapping value is replace by &

如何避免这种情况?

谢谢！

推荐答案

所有查询参数将通过使用&字符的拆分自动从url中提取，并映射到方法声明中的相应@RequestParam. 因此，您无需在@RequestMapping批注中指定所有键，而只需在此指定端点值.

All Query parameters will automatically be extracted from the url by a split using the & character and mapped to the corresponding @RequestParam in the method declaration. So you don't need to specify all the keys the @RequestMapping annotation and there you should only specify the endpoint value.

为使您的示例正常工作，您只需要将其余端点更改为

For your example to work you just need to change your rest-endpoint to

@RequestMapping(method=RequestMethod.GET)
GoogleMatrixResult process(@RequestParam(value="key") String key,
                           @RequestParam(value="origins") String origins,
                           @RequestParam(value="destinations") String destinations);

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