DioError [DioErrorType.RESPONSE]：Http状态错误[400]异常

Question

我正在开发Flutter Restful Web应用程序和Web API后端作为asp.net核心。当我尝试使用邮寄请求发送表单数据时，会引发此错误

  

DioError [DioErrorType.RESPONSE]：Http状态错误[400]异常

代码

onPressed: () async {
 String email_value = emailController.text;
 String password_value = passController.text;
 String fullname_value = fullnameController.text;
 var repassword_value = repassController.text;
 print("$email_value");
 if (password_value == repassword_value) {
 try{
 Dio dio = Dio();
 var body = jsonEncode(
  {
    'FullName': '$fullname_value',
    'Email': '$email_value',
    'Password': '$password_value'
  }
 );
 print("Body" + body);
 Response response = await dio.post("http://iamtv.chainuniverse.com/api/Accounts/Register",
  data: body,
  options: Options(
    contentType: Headers.jsonContentType,
  )
 );
 var jsonData = json.decode(response.data);
 print(jsonData);
 if (response.statusCode > 200 &&
    response.statusCode < 250) {
  print("Sucess");
  await loginAction();
  print("Registered");
 }
 else{
  print(jsonData);
 }

但是当我不使用textcontroller Text手动发送数据时，它就可以工作。请帮我解决这个问题

在POSTMAN中完美工作

Answer 1

最新答案可能会对您有所帮助。

我在200和/api/test/123/上遇到了同样的错误。有效！添加{ package spark import org.apache.spark.sql.SparkSession import org.apache.spark.sql.functions.{col} object filterWorld extends App { val spark = SparkSession.builder() .master("local") .appName("Mapper") .getOrCreate() import spark.implicits._ case class Person( ID: Int, firstName: String, lastName: String, description: String, comment: String ) val personDF = Seq( Person(1, "FN1", "LN1", "TEST", "scala"), Person(2, "FN2", "LN2", "develop", "spark"), Person(3, "FN3", "LN3", "test", "sql"), Person(4, "FN4", "LN4", "develop", "java"), Person(5, "FN5", "LN5", "test", "c#"), Person(6, "FN6", "LN6", "architect", "python"), Person(7, "FN7", "LN7", "test", "spark"), Person(8, "FN8", "LN8", "architect", "scala"), Person(9, "FN9", "LN9", "qa", "hql"), Person(10, "FN10", "LN10", "manager", "haskell") ).toDF() personDF.show(false) // +---+---------+--------+-----------+-------+ // |ID |firstName|lastName|description|comment| // +---+---------+--------+-----------+-------+ // |1 |FN1 |LN1 |TEST |scala | // |2 |FN2 |LN2 |develop |spark | // |3 |FN3 |LN3 |test |sql | // |4 |FN4 |LN4 |develop |java | // |5 |FN5 |LN5 |test |c# | // |6 |FN6 |LN6 |architect |python | // |7 |FN7 |LN7 |test |spark | // |8 |FN8 |LN8 |architect |scala | // |9 |FN9 |LN9 |qa |hql | // |10 |FN10 |LN10 |manager |haskell| // +---+---------+--------+-----------+-------+ // val fltr = !col("description").like("%e%") && !col("comment").like("%s%") val res = personDF.filter(fltr) res.show(false) // +---+---------+--------+-----------+-------+ // |ID |firstName|lastName|description|comment| // +---+---------+--------+-----------+-------+ // |9 |FN9 |LN9 |qa |hql | // +---+---------+--------+-----------+-------+ }

之后

Dio

完整代码

form-data