前提

将文件流写入HttpServerResponse,knife4j不能正常的下载文件，只会把文件信息显示出来

操作

Controller层在对应的接口增加knife4j配置

在@ApiOperation注解中加上produces = “application/octet-stream”

java

    @GetMapping("/getWord")
    @ApiOperation(value = "获取word文件",produces = "application/octet-stream" )
    @Permission(rule = PermissionRule.Login)
    public void  getWord(HttpServerResponse res) {
        taskService.getWord(res);
    }