关于D365/AX2012/C#中的那些json、对象、字符串类型间的转换

今天有同事问我关于AX2012里，如何直接输出json字符串的问题，这里就顺手写点东西跟大家分享下。

一.AX2012中将字段信息序列化成json字符串：

1.1.AX2012中将字段信息序列化成json字符串截图；

1.2.关键代码：

static void Alfred_Field2Json(Args _args)

{

    System.IO.StringWriter stringWriter;

    Newtonsoft.Json.JsonTextWriter jsonWriter;

    str     returnJsonstr, res;

    stringWriter = new System.IO.StringWriter();

    jsonWriter = new Newtonsoft.Json.JsonTextWriter(stringWriter);



    jsonWriter.WriteStartObject();

    jsonWriter.WritePropertyName(“FieldId1”);

    jsonWriter.WriteValue(“FieldValue1”);

    jsonWriter.WritePropertyName(‘FieldId2‘);

    jsonWriter.WriteValue(“FieldValue2”);

    jsonWriter.WritePropertyName(“FieldId3”);

    jsonWriter.WriteValue(“FieldValue3”);

    jsonWriter.WriteEndObject();

returnJsonstr = stringWriter.ToString();

info(returnJsonstr);

}

二.D365中将json反序列化成实体类：

myentity entity;

list = FormJSONSerializer::deserializeCollection(classnum(List),
json字符串,Types::Class,
‘myentity‘);

listEnumerator = list.getEnumerator();

while (listEnumerator.moveNext())

{

entity= listEnumerator.current();

}

三.D365中，将实体对象序列化成json字符串；

FormJSONSerializer::serializeClass(
实体对象);

该类FormJSONSerializer可以实现对象和json的序列化与反序列化处理。

四.D365/AX2012 提供接口，一次传多条记录；

[AifCollectionTypeAttribute(‘return‘, Types::Class, classStr(DownFileValuelEntity))]

    public List<DownFileValuelEntity> downloadDN(FielEntity _fielEntity)

    {

        DownFileValuelEntity valueEntity = new DownFileValuelEntity();

        List valueEntities = new List(types::Class);



        valueEntities.addEnd(valueEntity);



        return valueEntities;

    }

五.D365/AX2012通过map反序列化；

    str jsonstr =‘{“FieldValues”:[{“FieldName”:”Field1″,”FieldValue”:”Rec1Field1Value”},‘+

    ‘{“FieldName”:”Field2″,”FieldValue”:”Rec1Field2Value”}]}‘;

    Map     jsonMap, lineMap;

    container   lineCon;

    container   itemsCon;

    ListEnumerator          listEnumerator;

    mapEnumerator           mapEnumerator;

    List                    lineList;

    ;

    jsonMap = RetailCommonWebAPI::getMapFromJsonString(jsonstr);

    if (jsonMap.exists(“FieldValues”))

    {

        itemsCon = jsonMap.lookup(“FieldValues”);

        lineList = List::create(itemsCon);

        listEnumerator = lineList.getEnumerator();

        while (listEnumerator.moveNext())

        {

            lineCon = listEnumerator.current();

            lineMap = Map::create(lineCon);

            info(lineMap.lookup(“FieldName”));

            info(lineMap.lookup(“FieldValue”));

        }

    }