查看“OpenFeign 传递请求体数据”的源代码

https://www.bilibili.com/video/BV1My4y1W7vy?p=6

=== 被调用的 application service 一方 ===

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

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("/newDemo5")
    public People newDemo5(@RequestBody People people) {
        return people;
    }

}
</syntaxhighlight>

==== People.java ====
<syntaxhighlight lang="java">
package io.github.jihch.pojo;

public class People {
    private int id;
    private String name;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public People() {
    }

    public People(int id, String name) {
        this.id = id;
        this.name = name;
    }
}
</syntaxhighlight>






=== 应用 OpenFeign 调用的一方 ===

==== 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("/demo4")
    public String demo4() {
        return feignDemoService.demo4();
    }

}
</syntaxhighlight>

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

public interface FeignDemoService {

    String demo4();

}
</syntaxhighlight>

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

import io.github.jihch.feign.ServiceDemoFeign;
import io.github.jihch.pojo.Student;
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 demo4() {
        Student stu = new Student();
        stu.setId(1L);
        stu.setName("张三");
        return serviceDemoFeign.suiyi4(stu).toString();
    }


}
</syntaxhighlight>

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

import io.github.jihch.pojo.Student;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@FeignClient("MYPROJECT")
public interface ServiceDemoFeign {

    @RequestMapping("/newDemo5")
    Student suiyi4(Student student);

}
</syntaxhighlight>

==== Student.java ====
<syntaxhighlight lang="java">
package io.github.jihch.pojo;

public class Student {

    private Long id;

    private String name;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Student{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}
</syntaxhighlight>访问 http://localhost:8088/demo4 测试


OpenFeign 调用 application service 返回的 People 数据其实是 JSON 字符串，再由 OpenFeign 封装到 Student 对象中