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【Swagger 教程】20、文件上传

转载 作者:大佬之路 更新时间:2024-01-21 22:38:44 33 4
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在SwaggerBootstrapUi以前的版本中(1.8.9之前),如果需要使用文件上传,界面显示,需要做如下代码设置:

@ApiOperation(value = "多文件MultipartFile上传")
@ApiImplicitParams({@ApiImplicitParam(name = "file[]", value = "文件流对象,接收数组格式", required = true,dataType = "MultipartFile",allowMultiple = true),
                    @ApiImplicitParam(name = "title", value = "title", required = true)}
                  )
@RequestMapping(value="/uploadMaterial",method = RequestMethod.POST)
@ResponseBody
public RestMessage uploadMaterial(@RequestParam(value="file[]",required = true) MultipartFile[] files,@RequestParam(value = "title") String title, HttpServletRequest request) throws IOException {
    //int mul=1*1024*1024;
    List<Map> uploadFiles= upload(request,files);
    RestMessage rm=new RestMessage();
    rm.setData(uploadFiles);
    return rm;
}

需要指定dataType="MultipartFile",并且allowMultiple = true必须设置,该属性从字面意思能知道,允许多文件上传,这里需要说明一下,因为在以前的版本作者并不知道文件的类型,所以特意强加了MultipartFile类型,来达到Ui的线上显示效果,所以单文件的上传一直并未支持.

1.9.0版本中,添加了对单文件上传的支持,多文件上传不需要多个input元素,开发者只需要按住Ctrl键即可多选文件进行上传,三种情况供大家参考使用:

多文件MultipartFile类型上传

这种类型在以前的版本中都支持,需要指定dataType="MultipartFile",并且allowMultiple = true,示例代码如下:

@ApiOperation(value = "多文件MultipartFile上传")
@ApiImplicitParams({@ApiImplicitParam(name = "file[]", value = "文件流对象,接收数组格式", required = true,dataType = "MultipartFile",allowMultiple = true),
                    @ApiImplicitParam(name = "title", value = "title", required = true)}
                  )
@RequestMapping(value="/uploadMaterial",method = RequestMethod.POST)
@ResponseBody
public RestMessage uploadMaterial(@RequestParam(value="file[]",required = true) MultipartFile[] files,@RequestParam(value = "title") String title, HttpServletRequest request) throws IOException {
    //more.....

}

在Ui的界面中,显示效果如下:

 

 

多文件File类型上传

除了dataType类型设置为MultipartFile外,开发者还可以设置为__File类型,代码示例如下:

@ApiOperation(value = "多文件File上传")
@ApiImplicitParams({@ApiImplicitParam(name = "file[]", value = "文件流对象,接收数组格式", required = true,dataType = "__File",allowMultiple = true),
                    @ApiImplicitParam(name = "title", value = "title", required = true)}
                  )
@RequestMapping(value="/uploadMaterial1",method = RequestMethod.POST)
@ResponseBody
public RestMessage uploadMaterial1(@RequestParam(value="file[]",required = true) MultipartFile[] files,@RequestParam(value = "title") String title, HttpServletRequest request) throws IOException {
    //more....
}

 

 

单文件File类型上传

和多文件File类型上传类似,只需要去掉allowMultiple = true属性即可,代码示例如下:

@ApiOperation(value = "单文件File上传")
@ApiImplicitParams({@ApiImplicitParam(name = "file", value = "文件流对象,接收数组格式", required = true,dataType = "__File"),
                    @ApiImplicitParam(name = "title", value = "title", required = true)}
                  )
@RequestMapping(value="/uploadMaterial2",method = RequestMethod.POST)
@ResponseBody
public RestMessage uploadMaterial2(@RequestParam(value="file",required = true) MultipartFile file,@RequestParam(value = "title") String title, HttpServletRequest request) throws IOException {
    //more...
}

 

 

以上三种情况示例可参考demo代码UploadController.java

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