Jq submits post json data to webApi, jqwebapipostjson

Jq submits post json data to webApi, jqwebapipostjson

When thinking about webApi post json data on the page, we found that webapi cannot directly accept data in json format (Note: I didn't find a good way to post json data ); however, it can be transmitted in a data structure;

As follows:

 

1 // js Code
Var d = {2 Id: "1", 3 Name: "name", 4 Value: "OldValue", 7}; 8 $. ajax ({9 type: "post", 10 url: url1, 11 data: JSON. stringify ({12 pConfig: d13}), 14 success: function (d) {15 16} 17 });

 1 public  class Diff 2     { 3         public string Id { set; get; } 4         public string Name { set; get; } 5         public string Value { set; get; } 6     } 7  public Diff post([FromBody]Diff pConfig) 8         { 9             List<DiffConfig> s = pConfig;10             return s;11         }

View Code

There is no problem with code like this; a standard structure of data is obtained;

However, if the code below is changed, no data is found.

1 // js Code 2 var d = [{3 Id: "1", 4 Name: "name", 5 Value: "Value", 6}, {7 Id: "2", 8 Name: "name2", 9 Value: "Value2", 10}]; 11 $. ajax ({12 type: "post", 13 url: url1, 14 data: JSON. stringify ({15 pConfig: d16}), 17 success: function (d) {18 19} 20 });

View Code

1  public List<Diff> post([FromBody]List<Diff> diff)2         {3             List<Diff> d = diff;4             return d;5         }

View Code

This code will find that the data has not been passed in, and later we will find that there is a problem with the original jq ajax data transmission type; the default value of the transmitted data type contentType is "application/x-www-form-urlencoded ". The default value is applicable in most cases. But it cannot adapt to the value of this transmission. You can set contentType: 'application/json' to OK. There is no problem with data transmission;

 $.ajax({            type: "post",            dataType: 'json',            url: url,            contentType: 'application/json',            data: JSON.stringify(d),            success: function (d) {                          }        });