App开发之网络层搭建

var ResJson = function(){  this.code;  this.data;  this.errmsg ;}module.exports ={  /**   * 返回错误   */  resError:function(res,err){    console.error(err)    var resjson = new ResJson();    resjson.code = 1;    resjson.errmsg = err;    res.json(resjson)  },  /**   * 返回成功   */  resSuccess:function(res,data){    var resjson = new ResJson();    resjson.code = 0;    resjson.data = data;    console.log('---res succes--- data:',data)    res.json(resjson)  },  /**   * 打印   */  logReq:function(req){    // console.log(req.hostname)    // console.log(req.ip)    // console.log(req.protocol)    // console.log(req.method)    // console.log('url:'+req.originalUrl+' body:'+JSON.stringify(req.body));    var log = '---hostname:'+req.hostname+' ip:'+req.ip;    // console.log(log)    log = '---'+req.method+'_'+req.originalUrl;    console.log(log)    var log = '---body:'+JSON.stringify(req.body);    console.log(log)  }}

var ru = require(_roomdir + 'utils/routersutil');
/** * 请求验证码 */router.post('/validate', function(req, res, next) {    try {        ru.logReq(req);        var phone = req.body.phone;        var country_code = req.body.country_code;        var type = req.body.type;        if (!phone || !type || !country_code) {            ru.resError(res, '参数错误');        } else if (!utils.checkPhone(phone)) {            ru.resError(res, '请填写正确的手机号格式');        } else {            /***此处为验证码服务器逻辑，因为本篇介绍网络层，所以忽略***/            ru.resSuccess(res, validate);        }    } catch (err) {        ru.resError(res, err.message);    }});

var userRouter = require('./routes/user');app.use('/user', userRouter);

static String BASE_URL = 'http://xxx.xxx.x.x:xxxx/';static String USER_VALIDATE = 'user/validate';
static post(String url, Function successCallback,      {Map<String, dynamic> params,        Function errorCallback,        Function completeCallback}) async {    StringBuffer sb = new StringBuffer("");    if (params != null) {      params.forEach((key, value) {        sb.write("$key" + "=" + "$value" + "&");      });    }    String paramStr = sb.toString();    if (paramStr.length > 0) {      paramStr = paramStr.substring(0, paramStr.length - 1);    }    LogUtil.e(url,tag: Tag.TAG_CHTTP);    LogUtil.e(paramStr,tag: Tag.TAG_CHTTP);    BaseOptions options = new BaseOptions(        baseUrl: CHttp.BASE_URL,        connectTimeout: 10000,        receiveTimeout: 10000,        contentType: Headers.jsonContentType,        responseType: ResponseType.json);    Dio dio = new Dio(options);    try {      Response response = await dio.post(url, data: params);      LogUtil.v('---url :${url}', tag: Tag.TAG_CHTTP);      LogUtil.v('---paramStr :${paramStr}', tag: Tag.TAG_CHTTP);      LogUtil.v('---data :${response.data}', tag: Tag.TAG_CHTTP);      if (response.data['code'] == 0) {        if (successCallback != null) {          successCallback(response.data['data']);        }        if (completeCallback != null) {          completeCallback();        }      } else {        if (errorCallback != null) {          errorCallback(response.data['errmsg']);        }        if (completeCallback != null) {          completeCallback();        }      }    } catch (e) {      LogUtil.e(url, tag: Tag.TAG_CHTTP);      LogUtil.e(e, tag: Tag.TAG_CHTTP);      if (errorCallback != null) {        errorCallback(e.toString());      }      if (completeCallback != null) {        completeCallback();      }    }  }

///base paramsabstract class Params{  String os;  Params(){//    LogUtil.e('---Params');    if(Platform.isIOS){      os = 'ios';    }    if(Platform.isAndroid){      os = 'android';    }    if(Platform.isMacOS){      os = 'macos';    }    if(Platform.isWindows){      os = 'windows';    }  }
  Map<String, dynamic> toJson();}

///请求验证码class PUserVerifyCode extends Params{  String country_code;  String phone ;  int type ;//1 注册 2 忘记 3 修改  PUserVerifyCode(country_code,phone,type){    this.country_code = country_code;    this.phone = phone;    this.type = type;  }  //dynamic  Map<String, String> toJson() =>      {        'country_code':country_code,        'phone': phone,        'type':type.toString(),        'os':os,      };}

abstract class Res{
}

class ResUserVerifyCode extends Res{  String phone;  int type;  String code;  int time;  int max ;  ResUserVerifyCode.fromJson(Map<String, dynamic> json){    phone = json['phone'];    type = int.parse(json['type']);    code = json['code'];    time = json['time'];    max = json['time'];  }  @override  String toString() {    var to_json = {      'phone':phone,      'type':type,      'code':code,      'time':time,      'max':max,    };    String to_str = json.encode(to_json);    return to_str;  }}

  ///请求验证码 verifycode  _reqVerifyCode() {    CHttp.post(        CHttp.USER_VALIDATE,        (data) {          ResUserVerifyCode resUserVerifyCode =              ResUserVerifyCode.fromJson(data);          if (!mounted) {            return;          }          /***客户端处理验证码逻辑***/        },        params: PUserVerifyCode(country_code, phoneController.text, 1).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }