Golang xml 不解组

Question

我正在尝试解组以下代码，该代码在底部有 go playground。 data.DocumentType 总是 returns 0 并且应该 return 内部 xml 4. 有人能告诉我为什么这不起作用吗？

package main

import (
    "encoding/xml"
    "fmt"

)

type doc struct {
    XMLName       xml.Name `xml:"ownershipDocument"`
    SchemaVersion string   `xml:",innerxml"`
    DocumentType  int      `xml:",innerxml"`
}

func main() {
    var Data doc
    xml.Unmarshal([]byte(VV), &Data)
    fmt.Println(Data.DocumentType)

}

const VV = `<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-11-18</periodOfReport>

    <issuer>
        <issuerCik>0000820081</issuerCik>
        <issuerName>CAMBREX CORP</issuerName>
        <issuerTradingSymbol>CBM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001227832</rptOwnerCik>
            <rptOwnerName>KORB WILLIAM B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1 MEADOWLANDS PLAZA</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>EAST RUTHERFORD</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07073</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2015-11-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>50.18</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>36562</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from .00 to .58 inclusive. The reporting person undertakes to provide to Cambrex Corporation, any security holder of Cambrex Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this Footnote 1 to this Form 4.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Samantha Hanley for William B. Korb by POA</signatureName>
        <signatureDate>2015-11-20</signatureDate>
    </ownerSignature>
</ownershipDocument>`

http://play.golang.org/p/nJbAF0zKSJ

Answer 1

删除 DocumentType 上的 innerxml 标签，并为其指定要匹配的元素的名称 (xml:"documentType")。来自 the xml library docs：

If the struct has a field of type []byte or string with tag ",innerxml", Unmarshal accumulates the raw XML nested inside the element in that field. The rest of the rules still apply.

您不需要存储未处理的 XML。您正在寻找字段的值，因此您不需要标签。

Working version

*edit：就此而言，",innerxml" 标签也会破坏 SchemaVersion 字段——没有匹配元素（并且由于 SchemaVersion 是一个字符串），它存储整个文档。

Answer 2

I tried to do as much i could please suggest and help . 
I use this method please comment and suggest.  
https://play.golang.org/p/kb0HF8ykHW

  package main;
    import (
        "fmt"
        "encoding/xml"  
    )

    func main(){
    dxml := `
    <?xml version="1.0"?>
    <ownershipDocument>
        <schemaVersion>X0306</schemaVersion>
        <documentType>4</documentType>
        <periodOfReport>2015-11-18</periodOfReport>
        <issuer>
            <issuerCik>0000820081</issuerCik>
            <issuerName>CAMBREX CORP</issuerName>
            <issuerTradingSymbol>CBM</issuerTradingSymbol>
        </issuer>
        <reportingOwner>
            <reportingOwnerId>
                <rptOwnerCik>0001227832</rptOwnerCik>
                <rptOwnerName>KORB WILLIAM B</rptOwnerName>
            </reportingOwnerId>
            <reportingOwnerAddress>
                <rptOwnerStreet1>1 MEADOWLANDS PLAZA</rptOwnerStreet1>
                <rptOwnerStreet2/>
                <rptOwnerCity>EAST RUTHERFORD</rptOwnerCity>
                <rptOwnerState>NJ</rptOwnerState>
                <rptOwnerZipCode>07073</rptOwnerZipCode>
                <rptOwnerStateDescription/>
            </reportingOwnerAddress>
            <reportingOwnerRelationship>
                <isDirector>1</isDirector>
                <isOfficer>0</isOfficer>
                <isTenPercentOwner>0</isTenPercentOwner>
                <isOther>0</isOther>
            </reportingOwnerRelationship>
        </reportingOwner>
        <nonDerivativeTable>
            <nonDerivativeTransaction>
                <securityTitle>
                    <value>Common Stock</value>
                </securityTitle>
                <transactionDate>
                    <value>2015-11-18</value>
                </transactionDate>
                <transactionCoding>
                    <transactionFormType>4</transactionFormType>
                    <transactionCode>S</transactionCode>
                    <equitySwapInvolved>0</equitySwapInvolved>
                </transactionCoding>
                <transactionAmounts>
                    <transactionShares>
                        <value>10000</value>
                    </transactionShares>
                    <transactionPricePerShare>
                        <value>50.18</value>
                        <footnoteId id="F1"/>
                    </transactionPricePerShare>
                    <transactionAcquiredDisposedCode>
                        <value>D</value>
                    </transactionAcquiredDisposedCode>
                </transactionAmounts>
                <postTransactionAmounts>
                    <sharesOwnedFollowingTransaction>
                        <value>36562</value>
                    </sharesOwnedFollowingTransaction>
                </postTransactionAmounts>
                <ownershipNature>
                    <directOrIndirectOwnership>
                        <value>D</value>
                    </directOrIndirectOwnership>
                    <natureOfOwnership>
                        <value/>
                    </natureOfOwnership>
                </ownershipNature>
            </nonDerivativeTransaction>
        </nonDerivativeTable>
        <footnotes>
            <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from .00 to .58 inclusive. The reporting person undertakes to provide to Cambrex Corporation, any security holder of Cambrex Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this Footnote 1 to this Form 4.</footnote>
        </footnotes>
        <remarks/>
        <ownerSignature>
            <signatureName>Samantha Hanley for William B. Korb by POA</signatureName>
            <signatureDate>2015-11-20</signatureDate>
        </ownerSignature>
    </ownershipDocument>

    `

        defer func() {
            if errD := recover(); errD != nil {
                    fmt.Println("!!!!!!!!!!!!!!!!Panic Occured and Recovered in func main(), Error Info: ", errD)
                }
        }()

        var Owner Ownershipdocs 

        err := xml.Unmarshal([]byte(dxml), &Owner)
            fmt.Println("xml.unmarshal error info :",err)
                fmt.Println("SchemaVersion : ",Owner.SchemaVersion)
                fmt.Println("DocumentType : ",Owner.DocumentType)
                fmt.Println("PeriodOfReport : ",Owner.PeriodOfReport)
                fmt.Println("IssuerCik : ",Owner.IssuerCik)
                fmt.Println("IssuerName : ",Owner.IssuerName)
                fmt.Println("IssuerTradingSymbol : ",Owner.IssuerTradingSymbol)
                fmt.Println("RptOwnerCik : ",Owner.RptOwnerCik)
                fmt.Println("RptOwnerName : ",Owner.RptOwnerName)
                fmt.Println("RptOwnerStreet1 : ",Owner.RptOwnerStreet1)
                fmt.Println("RptOwnerCity :  ",Owner.RptOwnerCity)
                fmt.Println("RptOwnerState : ",Owner.RptOwnerState)
                fmt.Println("RptOwnerZipCode : ",Owner.RptOwnerZipCode)
                fmt.Println("IsDirector : ",Owner.IsDirector)   
                fmt.Println("IsOfficer :  ",Owner.IsOfficer)

                fmt.Println("IsTenPercentOwner : ",Owner.IsTenPercentOwner)
                fmt.Println("IsOther : ",Owner.IsOther)
                fmt.Println("SecurityTitleValue : ",Owner.SecurityTitleValue)
                fmt.Println("TransactionDatevalue : ",Owner.TransactionDatevalue)
                fmt.Println("TransactionFormType : ",Owner.TransactionFormType)
                fmt.Println("TransactionCode : ",Owner.TransactionCode)
                fmt.Println("EquitySwapInvolved : ",Owner.EquitySwapInvolved)
                fmt.Println("TransactionSharesValue : ",Owner.TransactionSharesValue)
                fmt.Println("TransactionPricePerShareValue : ",Owner.TransactionPricePerShareValue)
                fmt.Println("TransactionPricePerSharefootnoteId :  ",Owner.TransactionPricePerSharefootnoteId)
                fmt.Println("TransactionAcquiredDisposedCodeValue : ",Owner.TransactionAcquiredDisposedCodeValue)

                fmt.Println("Footnote.Footnote : ",Owner.Footnote.Footnote)
                fmt.Println("OwnerSignaturesignatureName : ",Owner.OwnerSignaturesignatureName)
                fmt.Println("OwnerSignaturesignatureDate    : ",Owner.OwnerSignaturesignatureDate)  

    }

    type Ownershipdocs struct{
        SchemaVersion           string `xml:"schemaVersion"`
        DocumentType            string `xml:"documentType"`
        PeriodOfReport          string `xml:"periodOfReport"`
        IssuerCik               string `xml:"issuer>issuerCik"`
        IssuerName              string `xml:"issuer>issuerName"`
        IssuerTradingSymbol     string `xml:"issuer>issuerTradingSymbol"`
        RptOwnerCik             string `xml:"reportingOwner>reportingOwnerId>rptOwnerCik"`
        RptOwnerName            string `xml:"reportingOwner>reportingOwnerId>rptOwnerName"`

        RptOwnerStreet1         string `xml:"reportingOwner>reportingOwnerAddress>rptOwnerStreet1"`
        RptOwnerCity            string `xml:"reportingOwner>reportingOwnerAddress>rptOwnerCity"`
        RptOwnerState           string `xml:"reportingOwner>reportingOwnerAddress>rptOwnerState"`
        RptOwnerZipCode         string `xml:"reportingOwner>reportingOwnerAddress>rptOwnerZipCode"`

        IsDirector              string `xml:"reportingOwner>reportingOwnerRelationship>isDirector"`
        IsOfficer               string `xml:"reportingOwner>reportingOwnerRelationship>isOfficer"`  
        IsTenPercentOwner       string `xml:"reportingOwner>reportingOwnerRelationship>isTenPercentOwner"`
        IsOther                 string `xml:"reportingOwner>reportingOwnerRelationship>isOther"`        

        SecurityTitleValue      string `xml:"nonDerivativeTable>nonDerivativeTransaction>securityTitle>value"`
        TransactionDatevalue    string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionDate>value"`    
        TransactionFormType     string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionCoding>transactionFormType"`
        TransactionCode         string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionCoding>transactionCode"`
        EquitySwapInvolved      string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionCoding>equitySwapInvolved"`


        TransactionSharesValue                  string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionAmounts>transactionShares>value"`
        TransactionPricePerShareValue           string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionAmounts>transactionPricePerShare>value"`
        TransactionPricePerSharefootnoteId      string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionAmounts>transactionPricePerShare>footnoteId"`
        TransactionAcquiredDisposedCodeValue    string `xml:"nonDerivativeTable>nonDerivativeTransaction>transactionAmounts>transactionAcquiredDisposedCode>value"`

        SharesOwnedFollowingTransactionValue    string `xml:"nonDerivativeTable>nonDerivativeTransaction>ownershipNature>directOrIndirectOwnership>value"`

        Footnote                                Footnotes   `xml:"footnotes"`
        OwnerSignaturesignatureName             string       `xml:"ownerSignature>signatureName"`
        OwnerSignaturesignatureDate             string       `xml:"ownerSignature>signatureDate"`

    }

    type Footnotes struct{
        ID          string `xml:"id,attr"`
        Footnote    string `xml:"footnote"`

    }

Golang xml 不解组

Golang xml doesn't unmarshal

xml

go

unmarshalling