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This article mainly introduces how to implement the interface call of FeignClient, which has a certain reference value. Interested friends can refer to it. I hope you will learn a lot after reading this article.

FeignClient API call

No parameter

String parameter

Object parameter

Draw up the client side to call the server interface, directly put the code, reference format.

1. No parameter

Server method:

/ * Test, get the simple text * / @ GetMapping ("/ info") public String info () {return "zero";}

Client method:

/ * * API test * / @ GetMapping (value = "/ info") public String getInfo (); 2. String parameter

Server method:

@ ResponseBody @ PostMapping (value = "/ test") public String test (String s) {return s;}

Client method:

@ RequestMapping (value = "/ test", method = RequestMethod.POST) String test (@ RequestParam (value = "s") String s); 3. Object parameters

Server method:

@ PostMapping (value = "/ company/list") public List companyList (@ RequestBody CruiseCompInfo cruiseCompInfo) {return cruiseCompInfoService.selectCruiseCompInfoList (cruiseCompInfo);}

Client method:

@ RequestMapping (value = "/ company/list", method = RequestMethod.POST) public List companyList (@ RequestBody CruiseCompInfo cruiseCompInfo); bug service receiver interface encountered by feign interface parameters

As follows:

When the service invokes the calling service, the caller passes the parameters, but all the properties in the parameter object in the receiver interface are empty.

Solution

As follows:

First attempt:

All attributes are appended with @ JsonProperty (value= attribute name), which is invalid.

Second attempt:

All attributes are appended with @ JsonProperty (the first letter of the value= attribute name is capitalized), which is invalid

Third attempt:

Do not add @ JsonProperty annotation to attributes that do not pass values.

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