XML中的结构数组没有包装节点？

Question

我有一个客户拥有 XML，他们似乎想要一个库存数组，但是每个项目一个接一个地列出，没有包装节点。这是我正在做的一个示例，但每个项目都有一个包装节点。有没有办法让它们在“root”下一个接一个地列出？测试代码：package mainimport (    "encoding/xml"    "fmt"    "os"    "strconv")func main() {    type InventoryItem struct {        XMLName  xml.Name        ItemName string `xml:"Name"`        ItemDescription string `xml:"Description"`    }    type XMLEnvelop struct {        XMLName   xml.Name        `xml:"root"`        Inventory []InventoryItem `xml:"item"`        Records   int             `xml:"records"`    }    var items []InventoryItem    for i := 1; i < 6; i++ {        items = append(items, InventoryItem{XMLName: xml.Name{Local: "item" + strconv.Itoa(i)}, ItemName: "Test " + strconv.Itoa(i), ItemDescription: "Description " + strconv.Itoa(i)})    }    v := &XMLEnvelop{Records: 1, Inventory: items}    output, err := xml.MarshalIndent(v, "", "    ")    if err != nil {        fmt.Printf("error: %v\n", err)    }    // Write the output to check    os.Stdout.Write(output)    //Here is where I would make the request}测试输出：<root>    <item1>        <Name>Test 1</Name>        <Description>Description 1</Description>    </item1>    <item2>        <Name>Test 2</Name>        <Description>Description 2</Description>    </item2>    <item3>        <Name>Test 3</Name>        <Description>Description 3</Description>    </item3>    <item4>        <Name>Test 4</Name>        <Description>Description 4</Description>    </item4>    <item5>        <Name>Test 5</Name>        <Description>Description 5</Description>    </item5>    <records>1</records></root>去游乐场： https: //play.golang.org/p/3DRUABFEQvC这是他们似乎正在寻找的输出......无论出于何种原因。<root>    <Name>Test 1</Name>    <Description>Description 1</Description>    <Name>Test 2</Name>    <Description>Description 2</Description>    <Name>Test 3</Name>    <Description>Description 3</Description>    <Name>Test 4</Name>    <Description>Description 4</Description>    <Name>Test 5</Name>    <Description>Description 5</Description>    <records>1</records></root>

Answer 1

您可以实现自定义封送拆收器。

type InventoryItem struct {

    XMLName         xml.Name

    ItemName        string `xml:"Name"`

    ItemDescription string `xml:"Description"`

}

func (i InventoryItem) MarshalXML(e *xml.Encoder, start xml.StartElement) error {

    // Ignore the passed in `start` argument, it represents the

    // parent InventoryItem element of the Name and Description.

    // Declare types to represent the elements you want to encode,

    // initialize them to the item's field values and encode them.

    //

    // Use the ",chardata" option to tell the encoder to encode the

    // field's value directly rather than as a child element. 

    type Name struct {

        Value string `xml:",chardata"`

    }

    if err := e.Encode(Name{i.ItemName}); err != nil {

        return err

    }

    type Description struct {

        Value string `xml:",chardata"`

    }

    return e.Encode(Description{i.ItemDescription})

}

https://play.golang.org/p/D4ZVr2sWZju