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  3. 名前が同じであるが別々の要素を持つ非整列のネストされた配列に移動します。

名前が同じであるが別々の要素を持つ非整列のネストされた配列に移動します。

2016-10-08 4 views
1

APIに応答の名前がrowsetですが、要素が異なる2つのネストされたXML配列が返されるという問題があります。構造体にアンマーシャリングしようとすると、エラーfield "Attackers" with tag "rowset>row" conflicts with field "Items" with tag "rowset>row"が発生します。名前が同じであるが別々の要素を持つ非整列のネストされた配列に移動します。

これらはいずれも一意の属性nameです。この属性を持つパーサーに影響を与えることは可能ですか？

例を参照してください：これは正常に動作しますhttps://play.golang.org/p/BinDfC3XsW

出典

2016-10-08 Dan

+0

XML構造に似た構造体を宣言し、それをあなたのKillMailsXML構造体に変換することを検討しましたか？ドキュメントを読んだ後、私はその属性に基づいて要素を指定することはできないと思います。同じフィールドに攻撃者とアイテムを追加して、それを正しく翻訳するコンバータを作成してください。 –

+0

[this]（https://play.golang.org/p/yAkpMaZ2RW）のようなものでしょうか？欲しい？ –

答えて

1

次の手順でrowsetをマーシャリング解除延期、その後、xmlデータの構造を変更できない場合（ワーキング例：Go Playground）：

  1. 非マーシャル要素rowsetは、victimに関連しています。このステップでは、rowsetは生のXMLデータに非整列化されます。
  2. Decoder.DecodeElementを使用して別途生XMLをデコードします。次のように

まず（Victimの宣言、Attacker、Itemが省略された）データ構造を宣言する：

type Kill struct{ 
    // Generic kill information 
    KillID    int64  `xml:"killID,attr"` 
    Hash    string 
    SolarSystemID  int64  `xml:"solarSystemID,attr"` 
    MoonID    int64  `xml:"moonID,attr"` 
    // Victim Information 
    Victim    Victim  `xml:"victim"`  
    RawAttackersItems []byte  `xml:",innerxml" json:"-"` 
    Attackers   []Attacker `xml:"-"` 
    Items    []Item  `xml:"-"`   
} 

type Kills struct { 
    Kills []Kill `xml:"result>rowset>row"` 
}

次に、コード行XMLをアンマーシャリングするため：

//Step (1). Unmarshal to Kills 
v := &Kills{} 
if err := xml.Unmarshal([]byte(xmlText()), v); err != nil { 
    fmt.Printf("Error unmarshaling: %v\n", err) 
    return 
} 

//Step (2). Decode attackers and items related to victim 
for i, k := range v.Kills { 
    v.Kills[i].Attackers, v.Kills[i].Items = decodeAttackerAndItems(k.RawAttackersItems) 
}

そして最後にデコーダ機能：

func decodeAttackerAndItems(data []byte) ([]Attacker, []Item) { 
    xmlReader := bytes.NewReader(data) 
    decoder := xml.NewDecoder(xmlReader) 

    const (
     unknown int = iota 
     attackers 
     items 
    )  
    rowset := unknown 

    attackerList := []Attacker{} 
    itemList := []Item{} 

    for { 
     t, _ := decoder.Token() 
     if t == nil { 
      break 
     } 

     switch se := t.(type) { 
     case xml.StartElement: 
      if se.Name.Local == "rowset" { 
       rowset = unknown 
       for _, attr := range se.Attr { 
        if attr.Name.Local == "name" { 
         if attr.Value == "attackers" { 
          rowset = attackers 
          break 
         } else if attr.Value == "items" { 
          rowset = items 
          break 
         } 
        } 
       } 
      } else if se.Name.Local == "row" { 
       switch rowset { 
       case attackers: 
        a := Attacker{} 
        if err := decoder.DecodeElement(&a, &se); err == nil { 
         attackerList = append(attackerList, a) 
        } 
       case items: 
        it := Item{} 
        if err := decoder.DecodeElement(&it, &se); err == nil { 
         itemList = append(itemList, it) 
        } 
       } 
      } 
     } 
    } 

    return attackerList, itemList 
}

出典

2016-10-08 07:34:12 putu

1

、The Go Playground上でそれを試してみてください。

package main 

import (
    "encoding/xml" 
    "fmt" 
) 

func main() { 
    var v *KillMailsXML 
    if err := xml.Unmarshal([]byte(str), &v); err != nil { 
     panic(err) 
    } 
    for _, ks := range v.Kills { 
     for _, rs := range ks.Rowsets { 
      fmt.Println(rs.Who, rs.Rows) 
     } 
    } 
} 

type KillMailsXML struct { 
    Kills []struct { 
     // Generic kill information 
     KillID  int64 `xml:"killID,attr"` 
     Hash   string 
     SolarSystemID int64 `xml:"solarSystemID,attr"` 
     MoonID  int64 `xml:"moonID,attr"` 

     // Victim Information 
     Victim struct { 
      AllianceID  int64 `xml:"allianceID,attr"` 
      AllianceName string `xml:"allianceName,attr"` 
      CharacterID  int64 `xml:"characterID,attr"` 
      CharacterName string `xml:"characterName,attr"` 
      CorporationID int64 `xml:"corporationID,attr"` 
      CorporationName string `xml:"corporationName,attr"` 
      DamageTaken  int64 `xml:"damageTaken,attr"` 
      FactionID  int64 `xml:"factionID,attr"` 
      FactionName  string `xml:"factionName,attr"` 
      ShipTypeID  int64 `xml:"shipTypeID,attr"` 
      X    float64 `xml:"x,attr"` 
      Y    float64 `xml:"y,attr"` 
      Z    float64 `xml:"z,attr"` 
     } `xml:"victim"` 
     Rowsets []struct { 
      Who string `xml:"name,attr"` // Attackers or Items 
      Rows []struct { 
       //    Attackers struct { 
       AllianceID  int64 `xml:"allianceID,attr"` 
       AllianceName string `xml:"allianceName,attr"` 
       CharacterID  int64 `xml:"characterID,attr"` 
       CharacterName string `xml:"characterName,attr"` 
       CorporationID int64 `xml:"corporationID,attr"` 
       CorporationName string `xml:"corporationName,attr"` 
       DamageDone  int64 `xml:"damageDone,attr"` 
       FactionID  int64 `xml:"factionID,attr"` 
       FactionName  string `xml:"factionName,attr"` 
       FinalBlow  bool `xml:"finalBlow,attr"` 
       SecurityStatus float64 `xml:"securityStatus,attr"` 
       ShipTypeID  int64 `xml:"shipTypeID,attr"` 
       WeaponTypeID int64 `xml:"weaponTypeID,attr"` 
       //    } 
       //    Items struct { 
       QtyDestroyed int64 `xml:"qtyDestroyed,attr"` 
       QtyDropped int64 `xml:"qtyDropped,attr"` 
       TypeID  int64 `xml:"typeID,attr"` 
       Flag   int64 `xml:"flag,attr"` 
       Singleton int64 `xml:"singleton,attr"` 
       //    } 
      } `xml:"row"` 
     } `xml:"rowset"` 
    } `xml:"result>rowset>row"` 
} 

var str = `<?xml version='1.0' encoding='UTF-8'?> 
<eveapi version="2"> 
    <currentTime>2016-07-06 05:49:28</currentTime> 
    <result> 
    <rowset name="kills" key="killID" columns="killID,solarSystemID,killTime,moonID"> 
     <row killID="54933226" solarSystemID="31001222" killTime="2016-07-03 22:29:19" moonID="0"> 
     <victim characterID="93811169" characterName="Madcat326" corporationID="98008818" corporationName="Haight Industries LLC" allianceID="0" allianceName="" factionID="0" factionName="" damageTaken="63039" shipTypeID="17918" x="59788513854.179" y="-13687850177.3741" z="157817245029.115" /> 
     <rowset name="attackers" columns="characterID,characterName,corporationID,corporationName,allianceID,allianceName,factionID,factionName,securityStatus,damageDone,finalBlow,weaponTypeID,shipTypeID"> 
      <row characterID="91316135" characterName="Celeo Servasse" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="-1.0646369409683" damageDone="7825" finalBlow="1" weaponTypeID="3520" shipTypeID="12003" /> 
      <row characterID="95273329" characterName="Mupoc Kashuken" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="-0.2" damageDone="16656" finalBlow="0" weaponTypeID="31882" shipTypeID="12023" /> 
      <row characterID="94389072" characterName="Johanis Cal-dahari" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="2" damageDone="11999" finalBlow="0" weaponTypeID="24486" shipTypeID="29986" /> 
      <row characterID="92090484" characterName="Foxstar Damaskeenus" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="-0.4" damageDone="10383" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="95708401" characterName="Bibet Shakure" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="-1.3" damageDone="6928" finalBlow="0" weaponTypeID="24490" shipTypeID="29986" /> 
      <row characterID="0" characterName="" corporationID="500020" corporationName="Serpentis" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="0" damageDone="3903" finalBlow="0" weaponTypeID="0" shipTypeID="38659" /> 
      <row characterID="96420826" characterName="D Joker" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="0" damageDone="2858" finalBlow="0" weaponTypeID="2488" shipTypeID="33470" /> 
      <row characterID="0" characterName="" corporationID="500011" corporationName="Angel Cartel" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="0" damageDone="2487" finalBlow="0" weaponTypeID="0" shipTypeID="42127" /> 
      <row characterID="94791823" characterName="chaosInjection" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="-1" damageDone="0" finalBlow="0" weaponTypeID="12267" shipTypeID="29986" /> 
      <row characterID="90957994" characterName="Conner Asanari" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" securityStatus="0.5" damageDone="0" finalBlow="0" weaponTypeID="16521" shipTypeID="22452" /> 
     </rowset> 
     <rowset name="items" columns="typeID,flag,qtyDropped,qtyDestroyed,singleton"> 
      <row typeID="394" flag="20" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="24427" flag="32" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="2446" flag="87" qtyDropped="1" qtyDestroyed="1" singleton="0" /> 
      <row typeID="28209" flag="87" qtyDropped="2" qtyDestroyed="0" singleton="0" /> 
      <row typeID="4405" flag="15" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="33450" flag="27" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="19215" flag="23" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="2456" flag="87" qtyDropped="5" qtyDestroyed="0" singleton="0" /> 
      <row typeID="26448" flag="93" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="33450" flag="28" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="394" flag="24" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="394" flag="21" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="19215" flag="19" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="4405" flag="14" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="1422" flag="12" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="2048" flag="16" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="26448" flag="94" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="33450" flag="29" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="33450" flag="30" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="2629" flag="5" qtyDropped="1750" qtyDestroyed="0" singleton="0" /> 
      <row typeID="33450" flag="31" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="2281" flag="22" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="19241" flag="25" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="1422" flag="13" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="26448" flag="92" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="1422" flag="11" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
     </rowset> 
     </row> 
     <row killID="54868503" solarSystemID="31000868" killTime="2016-06-30 03:39:22" moonID="0"> 
     <victim characterID="91316135" characterName="Celeo Servasse" corporationID="98134538" corporationName="Wormbro" allianceID="0" allianceName="" factionID="0" factionName="" damageTaken="18472" shipTypeID="11987" x="685670430496.578" y="-376814977944.382" z="-365907110851.975" /> 
     <rowset name="attackers" columns="characterID,characterName,corporationID,corporationName,allianceID,allianceName,factionID,factionName,securityStatus,damageDone,finalBlow,weaponTypeID,shipTypeID"> 
      <row characterID="641035756" characterName="Lenex Raay" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="5.00297218487895" damageDone="1169" finalBlow="1" weaponTypeID="2969" shipTypeID="22444" /> 
      <row characterID="1817541889" characterName="gr33nCO" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-0.1" damageDone="2163" finalBlow="0" weaponTypeID="2456" shipTypeID="22444" /> 
      <row characterID="92060039" characterName="Braxus Deninard" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-0.7" damageDone="1770" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="1734877398" characterName="Pantuf" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="4.9" damageDone="1681" finalBlow="0" weaponTypeID="2456" shipTypeID="22444" /> 
      <row characterID="92941592" characterName="Foedus Latro" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-1.2" damageDone="1663" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="782985098" characterName="AwingendeR" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="1.9" damageDone="1501" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="93802816" characterName="Tycho Loor" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-1.9" damageDone="1405" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="91004291" characterName="Broxis Khoros" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-1.8" damageDone="1228" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="92007576" characterName="Dean Mintar" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="3.1" damageDone="1057" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="91702100" characterName="EMU EVIL" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-1.4" damageDone="792" finalBlow="0" weaponTypeID="2488" shipTypeID="11978" /> 
      <row characterID="95430803" characterName="Violet Dawn" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="1" damageDone="789" finalBlow="0" weaponTypeID="2488" shipTypeID="33157" /> 
      <row characterID="647412341" characterName="Lysus" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-2" damageDone="761" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="91986431" characterName="sHanQ Myteia" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-1" damageDone="497" finalBlow="0" weaponTypeID="2456" shipTypeID="11963" /> 
      <row characterID="90571681" characterName="Pyrric Skloric" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="0.1" damageDone="356" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="964223112" characterName="Tisisan" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="0.9" damageDone="313" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="1039287135" characterName="J3rz11" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="0.4" damageDone="265" finalBlow="0" weaponTypeID="2488" shipTypeID="22444" /> 
      <row characterID="91343130" characterName="Sophia Utama" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="0.6" damageDone="237" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="94149890" characterName="Minnie Sodom" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="2.6" damageDone="225" finalBlow="0" weaponTypeID="2488" shipTypeID="11978" /> 
      <row characterID="91875279" characterName="Derek Itinen" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="0.8" damageDone="210" finalBlow="0" weaponTypeID="2488" shipTypeID="11978" /> 
      <row characterID="1556079273" characterName="Alita Hayes" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-0.1" damageDone="186" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="2086742079" characterName="Turd Destroyer" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="3.3" damageDone="115" finalBlow="0" weaponTypeID="22444" shipTypeID="22444" /> 
      <row characterID="91044028" characterName="Viktoria Bernhardt" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="2.8" damageDone="89" finalBlow="0" weaponTypeID="28215" shipTypeID="11978" /> 
      <row characterID="941167595" characterName="Justin Cody" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="1.6" damageDone="0" finalBlow="0" weaponTypeID="15891" shipTypeID="11969" /> 
      <row characterID="686125406" characterName="NoobMan" corporationID="98040755" corporationName="Hard Knocks Inc." allianceID="99005065" allianceName="Hard Knocks Citizens" factionID="0" factionName="" securityStatus="-0.1" damageDone="0" finalBlow="0" weaponTypeID="2873" shipTypeID="11186" /> 
     </rowset> 
     <rowset name="items" columns="typeID,flag,qtyDropped,qtyDestroyed,singleton"> 
      <row typeID="16455" flag="30" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="16455" flag="28" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="31366" flag="92" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="16487" flag="32" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="6005" flag="19" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="16487" flag="31" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="29011" flag="5" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="31366" flag="93" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="29009" flag="5" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="13970" flag="11" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="13982" flag="12" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="2048" flag="14" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="18712" flag="13" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="20353" flag="15" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="16455" flag="27" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
      <row typeID="16455" flag="29" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="2488" flag="87" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="41155" flag="20" qtyDropped="0" qtyDestroyed="1" singleton="0" /> 
      <row typeID="1952" flag="20" qtyDropped="1" qtyDestroyed="0" singleton="0" /> 
     </rowset> 
     </row> 
    </rowset> 
    </result> 
    <cachedUntil>2016-07-06 06:16:28</cachedUntil> 
</eveapi>`

出典

2016-10-08 06:10:21

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