查看“OpenFeign 传递 RESTFul 参数”的源代码

https://www.bilibili.com/video/BV1My4y1W7vy?p=5

=== 被调用的 application service ===
<syntaxhighlight lang="java">
import io.github.jihch.pojo.People;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

@RestController
public class DemoController {

    @RequestMapping("/demo3/{name}/{age}")
    public String demo3(@PathVariable String name, @PathVariable Integer age) {
        return "name:" + name + ",age:" + age;
    }

}
</syntaxhighlight>

=== 调用方 application client ===

==== ServiceDemoFeign.java ====
<syntaxhighlight lang="java">
package io.github.jihch.feign;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@FeignClient("MYPROJECT")
public interface ServiceDemoFeign {

    @RequestMapping("/demo3/{jqk}/{abc}")
    String suiyi3(@RequestParam String jqk, @RequestParam Integer age);

}
</syntaxhighlight>下面这么写也是可以的：<syntaxhighlight lang="java">
    @RequestMapping("/demo3/{jqk}/{abc}")
    String suiyi3(@PathVariable String jqk, @PathVariable Integer abc);
</syntaxhighlight>

==== FeignDemoService.java ====
<syntaxhighlight lang="java">
package io.github.jihch.service;
public interface FeignDemoService {

    String demo3(String name, Integer age);

}
</syntaxhighlight>

==== FeignDemoServiceImpl.java ====
<syntaxhighlight lang="java">
package io.github.jihch.service.impl;

import io.github.jihch.feign.ServiceDemoFeign;
import io.github.jihch.service.FeignDemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class FeignDemoServiceImpl implements FeignDemoService {

    @Autowired
    private ServiceDemoFeign serviceDemoFeign;

    @Override
    public String demo3(String name, Integer age) {
        return serviceDemoFeign.suiyi3(name, age);
    }

}
</syntaxhighlight>

==== FeignDemoController.java ====
<syntaxhighlight lang="java">
package io.github.jihch.controller;

import io.github.jihch.service.FeignDemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class FeignDemoController {

    @Autowired
    private FeignDemoService feignDemoService;


    @RequestMapping("/demo3")
    public String demo3() {
        return feignDemoService.demo3("张三", 88);
    }


}
</syntaxhighlight>访问：[http://localhost:8088/demo3/jihch/15 http://localhost:8088/demo3] 测试