asp.net core 3.0 MVC JSON 全局配置

asp.net core 3.0 mvc json 全局配置

• system.text.json(default)

1. startup配置代码如下：

using system.text.encodings.web;
using system.text.json;
using system.text.unicode;

public void configureservices(iservicecollection services)
{
     services.addjsonoptions(options =>
            {
                //格式化日期时间格式
                options.jsonserializeroptions.converters.add(new datetimejsonconverter());
                //数据格式首字母小写
                //options.jsonserializeroptions.propertynamingpolicy =jsonnamingpolicy.camelcase;
                //数据格式原样输出
                options.jsonserializeroptions.propertynamingpolicy = null;
                //取消unicode编码
                options.jsonserializeroptions.encoder = javascriptencoder.create(unicoderanges.all);
                //忽略空值
                options.jsonserializeroptions.ignorenullvalues = true;
                //允许额外符号
                options.jsonserializeroptions.allowtrailingcommas = true;
                //反序列化过程中属性名称是否使用不区分大小写的比较
                options.jsonserializeroptions.propertynamecaseinsensitive = false;
            });
}

using system;
using system.text.json;
using system.text.json.serialization;


public class datetimejsonconverter : jsonconverter<datetime>
    {
        public override datetime read(ref utf8jsonreader reader, type typetoconvert, jsonserializeroptions options)
        {
            if (reader.tokentype == jsontokentype.string)
            {
                if (datetime.tryparse(reader.getstring(), out datetime date))
                    return date;
            }
            return reader.getdatetime();
        }

        public override void write(utf8jsonwriter writer, datetime value, jsonserializeroptions options)
        {
            writer.writestringvalue(value.tostring("yyyy-mm-dd hh:mm:ss"));
        }
    }

1. 官方api

• newtonsoft.json

1. install-package microsoft.aspnetcore.mvc.newtonsoftjson -version 3.1.0
2. startup配置代码如下：

using newtonsoft.json;
using newtonsoft.json.serialization;
public void configureservices(iservicecollection services)
{
    services.addnewtonsoftjson(options =>
            {
                //设置时间格式
                options.serializersettings.dateformatstring = "yyyy-mm-dd hh:mm:ss";
                //忽略循环引用
                options.serializersettings.referenceloophandling = referenceloophandling.ignore;
                //数据格式首字母小写
                //options.serializersettings.contractresolver = new camelcasepropertynamescontractresolver();
                //数据格式按原样输出
                options.serializersettings.contractresolver = new defaultcontractresolver();
                //忽略空值
                options.serializersettings.nullvaluehandling = nullvaluehandling.ignore;
            });
}