Question

我正在尝试将JSON数据（存在于文件中）传递给JSON POST方法。

但是收到HTTP 400错误（错误请求） - ＆＃34;远程服务器返回错误：（400）错误请求。＆＃34;

请帮忙。

界面 - ：

[OperationContract]
[WebInvoke(UriTemplate = "/JSON", Method = "POST")]
string CreatePersonFromJSONString(Person createPerson);

已实施的功能 - ：

 public string CreatePersonFromJSONString(Person createPerson)
  {
     createPerson.ID = (++personCount).ToString();
     persons.Add(createPerson);
     return new JavaScriptSerializer().Serialize(createPerson);
  }

计划 - ：

 HttpWebRequest req = WebRequest.Create(uri) as HttpWebRequest;
 req.KeepAlive = false;
 req.Method = Method.ToUpper();

if (("POST,PUT").Split(',').Contains(Method.ToUpper()))
 {
   Console.WriteLine("Enter JSON FilePath:");
   string FilePath = Console.ReadLine();
   content = (File.OpenText(@FilePath)).ReadToEnd();

    req.ContentType = "application/json;";

    //initiate the request
    JavaScriptSerializer serializer = new JavaScriptSerializer();
    var resToWrite = serializer.Deserialize<Person>(content);
    StreamWriter PostData = new StreamWriter(req.GetRequestStream());
    PostData.Write(resToWrite);
    PostData.Flush();
    PostData.Close();
}

  HttpWebResponse resp = req.GetResponse() as HttpWebResponse;

输入文件内容 - ：

{  "Age":"25",
       "ID":"4",
       "Name":"Ashish" 
    }

人员类 - ：

 [DataContract]
    public class Person
    {
        [DataMember]
        public string ID;
        [DataMember]
        public string Name;
        [DataMember]
        public string Age;
    }

Uri - http://localhost:5171/RestService/JSON

方法 - POST

Answer 1

[解决]

我不得不将数据写入更改为Request Stream。无需反序列化JSON。

更改了程序部分 - ：

public class TestThread {
    public static void main(String[] args) {
        Boolean bol = new Boolean(true);
        (new Thread(new Odd(bol), "odd")).start();
        (new Thread(new Even(bol), "even")).start();
    }
}

public class Even implements Runnable {
    private Boolean flag;
    public Even(Boolean b) {
        this.flag = b;
    }

    @Override
    public void run() {
        for (int i = 2; i < 20; i = i + 2) {
            synchronized (flag) {
                try {
                 System.out.println(Thread.currentThread().getName()+":"+i);
                    Thread.sleep(1000);
                    flag.notify();
                    flag.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }

public class Odd implements Runnable {
    private Boolean flag;
    public Odd(Boolean b) {
        this.flag = b;
    }

    @Override
    public void run() {
        for (int i = 1; i < 20; i = i + 2) {
            synchronized (flag) {
                try {
                 System.out.println(Thread.currentThread().getName()+":"+i);
                    Thread.sleep(1000);
                    flag.notify();
                    flag.wait();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

Answer 2

对我来说，你的JSON无效。

在JSON中，属性名称必须是引号，所以：

{
   "Age":"25",
   "ID":"4",
   "Name":"Ashish" 
}

将JSON数据传递给REST POST方法

2 个答案: