关于feign调用不支持arraylist参数

报错feign.codec.EncodeException: class java.util.ArrayList is not a type supported by this encoder

需要调用的接口

  @org.springframework.web.bind.annotation.PostMapping({"/file/getFileDetailBatch"})
    @io.swagger.annotations.ApiOperation("批量获取文件详情")
    com.hvisions.common.vo.ResultVO<java.util.List<com.hvisions.filemanagement.dto.FileDTO>> getFileDetailBatch(@org.springframework.web.bind.annotation.RequestBody java.util.List<java.lang.Integer> fileIds);

我的代码
controller

  @PostMapping("/findImageInfoByIdList")
    @ApiOperation(value = "批量获取图片详情")
    public Result findImageInfoByIdList(@RequestBody List<Integer> idList) {
        return overhaulOrderService.findImageInfoByIdList(idList);
    }

impl

 @Override
    public Result findImageInfoByIdList(List<Integer> idList) {
        ResultVO<List<FileDTO>> fileDetailBatch = fileClient.getFileDetailBatch(idList);
        if (!fileDetailBatch.getCode().equals(CommonConstant.SUCCESS)) {
            return Result.create().error(fileDetailBatch.getMessage());
        }
        for (FileDTO fileDTO : fileDetailBatch.getData()) {
            String filePath = fileDTO.getFilePath();
            for (int i = 0; i < 3; i++) {
                filePath = filePath.substring(filePath.indexOf("/") + 1);
            }
            fileDTO.setFilePath(filePath);
        }
        return Result.create().success(fileDetailBatch.getData());
    }

默认场景是支持list的，除非你们是自己注入了一些bean

```java

@RequestBody List idList

``` 前端传来时格式不是list？