问题描述
大家早上好，我想就我遇到的以下错误寻求帮助，我已经研究过了，我做了一些尝试修复它的方法，但没有成功，所以我来到这里如果你能帮助我，请寻求你的帮助。
我想发送数据以便我可以在应用程序中使用它
class GetPatientsInfo {
static Future<List<PatientsInfo>> getPatients(authtoken,patientId) async {
var patientsResponse;
var response = await http.get(
url + '/patients/$patientId',headers: {'Authorization': authtoken,'patientId': patientId},);
var mapResponse = json.decode(response.body);
if (response.statusCode == 200) {
var response = List<PatientsInfo>.from(mapResponse.map((i) => PatientsInfo.fromJson(i)));
return response;
} else if (response.statusCode == 401) {
// response = null;
}
return patientsResponse;
}
}
方法返回
{
"addressCity": "city","addressZip": "00000","appointment_id": "328","connectedUsers": [
{
"info": {
"picture": "https://weavers.space/img/default_user.jpg"
},"user": {
"appointment_id": "","degree": "MB.BS","id": "85","name": "Andrew Gerrard Hunger,MB.BS","phoneNumbers": [
{
"number": "999-900-0909","title": "Office"
},{
"number": "999-999-9999","title": "Cell"
}
],"picture": "https://weavers.space/img/default_user.jpg","role": "physician","specialty": "Dermatology","visit_date": ""
}
},{
"info": {
"picture": "https://weavers.space/img/default_user.jpg"
},"degree": "MD","id": "87","name": "Jacob Martin,MD","phoneNumbers": [
{
"number": "355-698-9545","specialty": "Anesthesia","id": "99","name": "Mary Ann,"phoneNumbers": [
{
"number": "344-678-8991",{
"number": "219-682-6327","visit_date": ""
}
}
],"dob": 1529366400000,"first_name": "Gunther","gender": "female","homeAddr1": "Address","homeAddr2": "Address2","id": "29","last_name": "Beards","medical_data_level": [
0,0
],"medical_data_obj": [
{
"desc": "symptoms","id": 0,"level": 0
},{
"desc": "laboratory","id": 1,{
"desc": "medicines","id": 2,{
"desc": "vitals","id": 3,{
"desc": "cardiomems","id": 4,{
"desc": "images","id": 5,{
"desc": "careguidelines","id": 6,{
"desc": "fluidmetrics","id": 7,{
"desc": "riskprofile","id": 8,{
"desc": "performanceandutilization","id": 9,{
"desc": "education","id": 10,"level": 0
}
],"name": "Gunther Beards","notification_level": 0,"phoneNumbers": [
{
"number": "111-111-1111","title": "Cell"
},{
"number": "111-111-1112","title": "Home"
}
],"remote_monitoring": "Y","role": "patient","state": "north Carolina","visit_date": "2021-01-13 09:30"
}
模型
PatientsInfo patientsInfoFromJson(String str) => PatientsInfo.fromJson(json.decode(str));
String patientsInfoToJson(PatientsInfo data) => json.encode(data.toJson());
class PatientsInfo {
PatientsInfo({
this.addressCity,this.addressZip,this.appointmentId,this.connectedUsers,this.dob,this.firstName,this.gender,this.homeAddr1,this.homeAddr2,this.id,this.lastName,this.medicalDataLevel,this.medicalDataObj,this.name,this.notificationLevel,this.phoneNumbers,this.picture,this.remoteMonitoring,this.role,this.state,this.visitDate
});
String dictionary;
String addressCity;
String addressZip;
String appointmentId;
List<ConnectedUser> connectedUsers;
int dob;
String firstName;
String gender;
String homeAddr1;
String homeAddr2;
String id;
String lastName;
List<int> medicalDataLevel;
List<MedicalDataObj> medicalDataObj;
String name;
int notificationLevel;
List<PhoneNumber> phoneNumbers;
String picture;
String remoteMonitoring;
String role;
String state;
String visitDate;
factory PatientsInfo.fromJson(Map<String,dynamic> json) => PatientsInfo(
addressCity: json["addressCity"],addressZip: json["addressZip"],appointmentId: json["appointment_id"],connectedUsers: List<ConnectedUser>.from(json["connectedUsers"].map((x) => ConnectedUser.fromJson(x))),dob: json["dob"],firstName: json["first_name"],gender: json["gender"],homeAddr1: json["homeAddr1"],homeAddr2: json["homeAddr2"],id: json["id"],lastName: json["last_name"],medicalDataLevel: List<int>.from(json["medical_data_level"].map((x) => x)),medicalDataObj: List<MedicalDataObj>.from(json["medical_data_obj"].map((x) => MedicalDataObj.fromJson(x))),name: json["name"],notificationLevel: json["notification_level"],phoneNumbers: List<PhoneNumber>.from(json["phoneNumbers"].map((x) => PhoneNumber.fromJson(x))),picture: json["picture"],remoteMonitoring: json["remote_monitoring"],role: json["role"],state: json["state"],visitDate: json["visit_date"]
);
Map<String,dynamic> toJson() => {
"addressCity": addressCity,"addressZip": addressZip,"appointment_id": appointmentId,"connectedUsers": List<dynamic>.from(connectedUsers.map((x) => x.toJson())),"dob": dob,"first_name": firstName,"gender": gender,"homeAddr1": homeAddr1,"homeAddr2": homeAddr2,"id": id,"last_name": lastName,"medical_data_level": List<dynamic>.from(medicalDataLevel.map((x) => x)),"medical_data_obj": List<dynamic>.from(medicalDataObj.map((x) => x.toJson())),"name": name,"notification_level": notificationLevel,"phoneNumbers": List<dynamic>.from(phoneNumbers.map((x) => x.toJson())),"picture": picture,"remote_monitoring": remoteMonitoring,"role": role,"state": state,"visit_date": visitDate
};
}
class ConnectedUser {
ConnectedUser({
this.info,this.user,});
Info info;
User user;
factory ConnectedUser.fromJson(Map<String,dynamic> json) => ConnectedUser(
info: Info.fromJson(json["info"]),user: User.fromJson(json["user"]),);
Map<String,dynamic> toJson() => {
"info": info.toJson(),"user": user.toJson(),};
}
class Info {
Info({
this.picture,});
String picture;
factory Info.fromJson(Map<String,dynamic> json) => Info(
picture: json["picture"],dynamic> toJson() => {
"picture": picture,};
}
class User {
User({
this.appointmentId,this.degree,this.specialty,this.visitDate,});
String appointmentId;
String degree;
String id;
String name;
List<PhoneNumber> phoneNumbers;
String picture;
String role;
String specialty;
String visitDate;
factory User.fromJson(Map<String,dynamic> json) => User(
appointmentId: json["appointment_id"],degree: json["degree"],specialty: json["specialty"],visitDate: json["visit_date"],dynamic> toJson() => {
"appointment_id": appointmentId,"degree": degree,"specialty": specialty,"visit_date": visitDate,};
}
class PhoneNumber {
PhoneNumber({
this.number,this.title,});
String number;
String title;
factory PhoneNumber.fromJson(Map<String,dynamic> json) => PhoneNumber(
number: json["number"],title: json["title"],dynamic> toJson() => {
"number": number,"title": title,};
}
class MedicalDataObj {
MedicalDataObj({
this.desc,this.level,});
String desc;
int id;
int level;
factory MedicalDataObj.fromJson(Map<String,dynamic> json) => MedicalDataObj(
desc: json["desc"],level: json["level"],dynamic> toJson() => {
"desc": desc,"level": level,};
}
Dart Unhandled Exception: type '(dynamic) => PatientsInfo' is not a subtype of type '(String,dynamic) => MapEntry<dynamic,dynamic>' of 'transform',stack trace: #0 GetPatientsInfo.getPatients
解决方法
getPatients 中的以下行无效：
var response = List<PatientsInfo>.from(mapResponse.map((i) => PatientsInfo.fromJson(i)));
与闭包 (i) => PatientsInfo.fromJson(i) 不同，Map.map 期待一些类似于 (key,value) => MapEntry(newKey,newValue) 的东西。
这就是类型错误告诉你的。