执行命令

flutter pub get

三 基础使用

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3.1 get请求

var dio = Dio();

var response = await dio.get(‘https://xxx.com/test?id=12&name=wendu’);

print(response.data.toString());

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response = await dio.get(‘https://xxx.com/test’, queryParameters: {‘id’: 12, ‘name’: ‘wendu’});

print(response.data.toString());

3.2 post请求

var dio = Dio();

var response = await dio.post(‘https://xxx.com/test’, data: {‘id’: 12, ‘name’: ‘wendu’});

3.3 并发请求

var dio = Dio();

var response = await Future.wait([dio.post(‘https://xxx.com/info’), dio.get(‘https://xxx.com/token’)]);

3.4 下载文件

var dio = Dio();

var response = await dio.download(‘https://www.xxx.com/’, ‘/savePath’);

3.5 发送 FormData

var dio = Dio();

var formData = FormData.fromMap({

‘name’: ‘wendux’,

‘age’: 25,

});

var response = await dio.post(‘https://www.xxx.com/info’, data: formData);

3.6 通过FormData上传多个文件

var dio = Dio();

var formData = FormData.fromMap({

‘name’: ‘wendux’,

‘age’: 25,

‘file’: await MultipartFile.fromFile(’./text.txt’, filename: ‘upload.txt’),

‘files’: [

await MultipartFile.fromFile(’./text1.txt’, filename: ‘text1.txt’),

await MultipartFile.fromFile(’./text2.txt’, filename: ‘text2.txt’),

]

});

var response = await dio.post(‘https://www.xxx.com/info’, data: formData);

3.7 监听发送(上传)数据进度

var dio = Dio();

var response = await dio.post(

‘http://www.dtworkroom.com/doris/1/2.0.0/test’,

data: {‘aa’: ‘bb’ * 22},

onSendProgress: (int sent, int total) {

print(’$sent $total’);

},

);

四 示例

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4.1 BaseOptions配置请求

配置BaseOptions

var dio = Dio(BaseOptions(

baseUrl: ‘https://www.wanandroid.com/’,

connectTimeout: 5000,

receiveTimeout: 100000,

headers: {

HttpHeaders.userAgentHeader: ‘dio’,

‘api’: ‘1.0.0’,

},

contentType: Headers.jsonContentType,

responseType: ResponseType.plain,

));

get请求

Response response;

response = await dio.get(’/article/list/0/json’);

print(response.data);

带options的get请求

var responseMap = await dio.get(

‘/article/list/0/json’,

// Transform response data to Json Map

options: Options(responseType: ResponseType.json),

);

print(responseMap.data);

带参数的post请求

Response response

response = await dio.post(

‘//user/login’,

data: {

‘username’: ‘wanandroidUser1’,

‘password’: ‘123456’

},

// Send data with “application/x-www-form-urlencoded” format

options: Options(

contentType: Headers.formUrlEncodedContentType,

),

);

print(response.data);

fetch请求

Response response;

response = await dio.fetch(

RequestOptions(path: ‘https://www.wanandroid.com/article/list/0/json’),

);

print(response.data);

4.2 拦截器

var dio = Dio(BaseOptions(

baseUrl: ‘https://www.wanandroid.com/’,

connectTimeout: 5000,

receiveTimeout: 100000,