OpenFeign FormData

服务端接口代码如下：

 /**
 * 上传数据+实体信息
 */
@RequestMapping("/upload")
public String doctorAnalysis(HttpServletRequest request, @RequestParam(value = "userinfo") String param,  @RequestParam(value = "file") MultipartFile file) {
    logger.info("userinfo json => {}", param);
    logger.info("上传成功{}", file.getOriginalFilename());
    File saveFile = new File("D:\\"+file.getOriginalFilename());
    if (!saveFile.exists()) {
        saveFile.mkdirs();
    }
    try {
        file.transferTo(saveFile);
    } catch (IOException e) {
        logger.error(e.getMessage(), e);
        e.printStackTrace();
    }
    return "上传成功";
}

PostMan 如下

OpenFeign

@FeignClient(name = "vipsoft", url = "${api.url}")
public interface ICallbackFeignService {
    /**
     * 上传文件
     *
     * 注意: 使用openfeign传递参数含有文件类型时必须指定 consumes = MediaType.MULTIPART_FORM_DATA_VALUE
     *
     * @param param  需要将对象转成JSON，如果直接传对象出去，将会变成 Key Value的形式
     * @return
     */
    @PostMapping(value = "/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    String upload(@RequestPart("result") String param, @RequestPart("file") MultipartFile file);

}    

package com.vipsoft.web;

import com.vipsoft.web.rpc.ICallbackFeignService;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.FileInputStream;

@SpringBootTest
public class AppCallbackTest {

    @Autowired
    ICallbackFeignService appCallbackFeignService;

    @Test
    void Upload() throws Exception {

        File file = new File("D:\\Users\\Desktop\\fanye.mp4");
        //这里的第一个参数值 file 是对应上面feign的文件注解中的@RequestPar中的name。一定要对应上
        MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "application/octet-stream;charset=utf-8", new FileInputStream(file));
        UserInfo param = new UserInfo();
        param.setUserName("张三");
        param.setAge(40);
        appCallbackFeignService.upload(multipartFile);
    }
}