当我遇到响应失败的API时,我想以Flutter格式上传Multipart / Formdata格式的图像和配置文件数据

问题描述

这是我发布的api代码,当我运行代码时,我尝试上传文件(来自图像选择器的图像)和profilePojo(诸如用户名,fname,姓氏等数据)失败。 '''

 void addData(final profilePojo) async {
    SharedPreferences preferences = await SharedPreferences.getInstance();
   String token = preferences.getString('token');
FormData formData = FormData.fromMap({
     "file": await MultipartFile.fromFile("./text.txt",filename: "upload.txt"),"profilePojo":profilePojo,//profilePojo means i pass heaar string of data on button click
});


    String url =pass here url
    http
        .post(
      url,headers: {
         HttpHeaders.authorizationHeader: 'Bearer $token',// "Content-Type":"multipart/form-data","accept": "application/json",},body: formData.toString()
      
    )
        .then((response) {
      if (response.statusCode == 200) {
       var myData = json.decode(response.body);
       
       if(myData['result']=="success"){
        setState(() {
          print(myData);//print response  success
          _showDialog();
          getData();
        });}
        else{
        print(response.statusCode);
        
        print(myData);
        }
      } else {
        print(response.statusCode);
        print("object");
      }
    });
  }

'''

解决方法

我目前正在使用dio进行此类请求,这是我的示例:

final futureUploadList = imageList.map((img) async {
    print(img.path);
    return MultipartFile.fromFile(img.path);
  });

final uploadList = await Future.wait(futureUploadList);

FormData data = FormData.fromMap({
  "images": uploadList
});
dio.post('/images',data: data,options: Options(headers: {'Authorization': 'Bearer abcd'}));

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