Question

我正在尝试为json以下的内容创建avro模式

  {
  "id": "TEST",
  "status": "status",
  "timestamp": "2019-01-01T00:00:22-03:00",
  "comment":  "add comments or replace it with adSummary data",
  "error": { 
    "code": "ER1212132",
    "msg": "error message"
  }
}

错误对象是可选的，可能是 “错误”：{} 下面是没有默认值的avro模式

{
  "type" : "record",
  "name" : "Order",
  "fields" : [ {
    "name" : "id",
    "type" : "string"
  }, {
    "name" : "status",
    "type" : "string"
  }, {
    "name" : "timestamp",
    "type" : "string"
  }, {
    "name" : "comment",
    "type" :  ["null","string"],
    "default": null
  }, {
    "name" : "error",
    "type" : {
      "type" : "record",
      "name" : "error",
      "fields" : [ {
        "name" : "code",
        "type" : "string"
      }, {
        "name" : "msg",
        "type" : "string"
      } ]
    }
  } ]
}

如何为json中的错误字段添加默认值{}。

Answer 1

<platform name="ios">
    <preference name="WKWebViewOnly" value="true" />
     <preference name="CordovaWebViewEngine" value="CDVWKWebViewEngine" />
        <feature name="CDVWKWebViewEngine">
            <param name="ios-package" value="CDVWKWebViewEngine" />
        </feature>
        <preference name="CordovaWebViewEngine" value="CDVWKWebViewEngine" />
        <allow-navigation href="*" />
        <allow-navigation href="http://localhost:8080/*" />
        <allow-intent href="itms:*" />
        <allow-intent href="itms-apps:*" />
        <icon height="57" src="resources/ios/icon/icon.png" width="57" />
        <icon height="114" src="resources/ios/icon/icon@2x.png" width="114" />
        <icon height="40" src="resources/ios/icon/icon-40.png" width="40" />
        <icon height="80" src="resources/ios/icon/icon-40@2x.png" width="80" />
        <icon height="120" src="resources/ios/icon/icon-40@3x.png" width="120" />
        <icon height="50" src="resources/ios/icon/icon-50.png" width="50" />
        <icon height="100" src="resources/ios/icon/icon-50@2x.png" width="100" />
        <icon height="60" src="resources/ios/icon/icon-60.png" width="60" />
        <icon height="120" src="resources/ios/icon/icon-60@2x.png" width="120" />
        <icon height="180" src="resources/ios/icon/icon-60@3x.png" width="180" />
        <icon height="72" src="resources/ios/icon/icon-72.png" width="72" />
        <icon height="144" src="resources/ios/icon/icon-72@2x.png" width="144" />
        <icon height="76" src="resources/ios/icon/icon-76.png" width="76" />
        <icon height="152" src="resources/ios/icon/icon-76@2x.png" width="152" />
        <icon height="167" src="resources/ios/icon/icon-83.5@2x.png" width="167" />
        <icon height="29" src="resources/ios/icon/icon-small.png" width="29" />
        <icon height="58" src="resources/ios/icon/icon-small@2x.png" width="58" />
        <icon height="87" src="resources/ios/icon/icon-small@3x.png" width="87" />
        <icon height="1024" src="resources/ios/icon/icon-1024.png" width="1024" />
        <splash height="1136" src="resources/ios/splash/default-568h@2x~iphone.png" width="640" />
        <splash height="1334" src="resources/ios/splash/Default-667h.png" width="750" />
        <splash height="2208" src="resources/ios/splash/Default-736h.png" width="1242" />
        <splash height="1242" src="resources/ios/splash/Default-Landscape-736h.png" width="2208" />
        <splash height="1536" src="resources/ios/splash/default-landscape@2x~ipad.png" width="2048" />
        <splash height="2048" src="resources/ios/splash/Default-Landscape@~ipadpro.png" width="2732" />
        <splash height="768" src="resources/ios/splash/Default-Landscape~ipad.png" width="1024" />
        <splash height="2048" src="resources/ios/splash/default-portrait@2x~ipad.png" width="1536" />
        <splash height="2732" src="resources/ios/splash/Default-Portrait@~ipadpro.png" width="2048" />
        <splash height="1024" src="resources/ios/splash/Default-Portrait~ipad.png" width="768" />
        <splash height="960" src="resources/ios/splash/default@2x~iphone.png" width="640" />
        <splash height="480" src="resources/ios/splash/Default~iphone.png" width="320" />
        <splash height="2732" src="resources/ios/splash/default@2x~universal~anyany.png" width="2732" />
        <icon height="20" src="resources/ios/icon/icon-20.png" width="20" />
        <icon height="40" src="resources/ios/icon/icon-20@2x.png" width="40" />
        <icon height="60" src="resources/ios/icon/icon-20@3x.png" width="60" />
        <icon height="29" src="resources/ios/icon/icon-29.png" width="29" />
        <icon height="58" src="resources/ios/icon/icon-29@2x.png" width="58" />
        <icon height="87" src="resources/ios/icon/icon-29@3x.png" width="87" />
        <icon height="48" src="resources/ios/icon/icon-24@2x.png" width="48" />
        <icon height="55" src="resources/ios/icon/icon-27.5@2x.png" width="55" />
        <icon height="88" src="resources/ios/icon/icon-44@2x.png" width="88" />
        <icon height="172" src="resources/ios/icon/icon-86@2x.png" width="172" />
        <icon height="196" src="resources/ios/icon/icon-98@2x.png" width="196" />
        <icon height="216" src="resources/ios/icon/icon-108@2x.png" width="216" />
        <splash height="2688" src="resources/ios/splash/Default-2688h~iphone.png" width="1242" />
        <splash height="1242" src="resources/ios/splash/Default-Landscape-2688h~iphone.png" width="2688" />
        <splash height="1792" src="resources/ios/splash/Default-1792h~iphone.png" width="828" />
        <splash height="828" src="resources/ios/splash/Default-Landscape-1792h~iphone.png" width="1792" />
        <splash height="2436" src="resources/ios/splash/Default-2436h.png" width="1125" />
        <splash height="1125" src="resources/ios/splash/Default-Landscape-2436h.png" width="2436" />
    </platform>

具有空对象的记录类型的Avro模式

1 个答案: