What is invalid character entity &ccb

huangapple
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英文:

What is invalid character entity &ccb

问题

我有这个游乐场：https://go.dev/play/p/uEpYEWaQaV0
但是我不知道问题出在哪里，为什么它不工作！我得到了以下错误：

  1. invalid character entity &ccb

我的代码是：

  1. package main
  3. import (
  4. 	"encoding/xml"
  5. 	"fmt"
  6. )
  8. type catalog struct {
  9. 	Id string `xml:"id"`
  10. }
  12. type price struct {
  13. 	Subtotal    int    `xml:"subtotal"`
  14. 	Currency    string `xml:"currency"`
  15. 	Total       int    `xml:"total"`
  16. 	PriceStatus string `xml:"price_status"`
  17. }
  19. type image struct {
  20. 	Url string `xml:"url"`
  21. 	Id  int    `xml:"id"`
  22. }
  24. type product struct {
  25. 	Id         int    `xml:"id"`
  26. 	RetailerId int    `xml:"retailer_id"`
  27. 	Image      image  `xml:"image"`
  28. 	Price      int    `xml:"price"`
  29. 	Currency   string `xml:"currency"`
  30. 	Name       string `xml:"name"`
  31. 	Quantity   int    `xml:"quantity"`
  32. }
  34. type order struct {
  35. 	Product product `xml:"product"`
  36. 	Catalog catalog `xml:"catalog"`
  37. 	Price   price   `xml:"price"`
  38. }
  40. type Iq struct {
  41. 	XMLName xml.Name `xml:"iq"`
  42. 	Order   order    `xml:"order"`
  43. }
  45. func main() {
  46. 	contents := `<iq from="s.whatsapp.net" id="162.120-3" type="result">
  47.   <order creation_ts="1651703902" id="1046755402590219">
  48.     <product>
  49.       <id>8312993582051445</id>
  50.       <retailer_id>291</retailer_id>
  51.       <image>
  52.         <url>https://mmg.whatsapp.net/v/t45.5328-4/279646282_7510595942346471_4295336878174066544_n.jpg?stp=dst-jpg_p100x100&amp;ccb=1-5&amp;_nc_sid=c48759&amp;_nc_ohc=OMyHhkGxzRoAX8Dn93Q&amp;_nc_ad=z-m&amp;_nc_cid=0&amp;_nc_ht=mmg.whatsapp.net&amp;oh=01_AVw_0loIIuK1LP-n5OL1hdpRmNYhAiUjLGk20FCclgNXCA&amp;oe=62774C93</url>
  53.         <id>7510595939013138</id>
  54.       </image>
  55.       <price>5000</price>
  56.       <currency>SAR</currency>
  57.       <name>coffee</name>
  58.       <quantity>1</quantity>
  59.     </product>
  60.     <catalog><id>326185462964376</id></catalog>
  61.     <price>
  62.       <subtotal>5000</subtotal>
  63.       <currency>SAR</currency>
  64.       <total>5000</total>
  65.       <price_status>provided</price_status>
  66.     </price>
  67.   </order>
  68. </iq>`
  70. 	iq := &Iq{}
  72. 	err := xml.Unmarshal([]byte(contents), &iq)
  73. 	if err != nil {
  74. 		panic(err)
  75. 	}
  76. 	fmt.Printf("%v\n", iq.Order)
  77. }
英文:

I've this playground: https://go.dev/play/p/uEpYEWaQaV0
But did not get what is the issue and why it is not working! and I'm getting the error:

  1. invalid character entity &amp;ccb

My code is:

  1. package main
  3. import (
  4. 	&quot;encoding/xml&quot;
  5. 	&quot;fmt&quot;
  6. )
  8. type catalog struct {
  9. 	Id string `xml:&quot;id&quot;`
  10. }
  12. type price struct {
  13. 	Subtotal    int    `xml:&quot;subtotal&quot;`
  14. 	Currency    string `xml:&quot;currency&quot;`
  15. 	Total       int    `xml:&quot;total&quot;`
  16. 	PriceStatus string `xml:&quot;price_status&quot;`
  17. }
  19. type image struct {
  20. 	Url string `xml:&quot;url&quot;`
  21. 	Id  int    `xml:&quot;id&quot;`
  22. }
  24. type product struct {
  25. 	Id         int    `xml:&quot;id&quot;`
  26. 	RetailerId int    `xml:&quot;retailer_id&quot;`
  27. 	Image      image  `xml:&quot;image&quot;`
  28. 	Price      int    `xml:&quot;price&quot;`
  29. 	Currency   string `xml:&quot;currency&quot;`
  30. 	Name       string `xml:&quot;name&quot;`
  31. 	Quantity   int    `xml:&quot;quantity&quot;`
  32. }
  34. type order struct {
  35. 	Product product `xml:&quot;product&quot;`
  36. 	Catalog catalog `xml:&quot;catalog&quot;`
  37. 	Price   price   `xml:&quot;price&quot;`
  38. }
  40. type Iq struct {
  41. 	XMLName xml.Name `xml:&quot;iq&quot;`
  42. 	Order   order    `xml:&quot;order&quot;`
  43. }
  45. func main() {
  46. 	contents := `&lt;iq from=&quot;s.whatsapp.net&quot; id=&quot;162.120-3&quot; type=&quot;result&quot;&gt;
  47.   &lt;order creation_ts=&quot;1651703902&quot; id=&quot;1046755402590219&quot;&gt;
  48.     &lt;product&gt;
  49.       &lt;id&gt;8312993582051445&lt;/id&gt;
  50.       &lt;retailer_id&gt;291&lt;/retailer_id&gt;
  51.       &lt;image&gt;
  52.         &lt;url&gt;https://mmg.whatsapp.net/v/t45.5328-4/279646282_7510595942346471_4295336878174066544_n.jpg?stp=dst-jpg_p100x100&amp;ccb=1-5&amp;_nc_sid=c48759&amp;_nc_ohc=OMyHhkGxzRoAX8Dn93Q&amp;_nc_ad=z-m&amp;_nc_cid=0&amp;_nc_ht=mmg.whatsapp.net&amp;oh=01_AVw_0loIIuK1LP-n5OL1hdpRmNYhAiUjLGk20FCclgNXCA&amp;oe=62774C93&lt;/url&gt;
  53.         &lt;id&gt;7510595939013138&lt;/id&gt;
  54.       &lt;/image&gt;
  55.       &lt;price&gt;5000&lt;/price&gt;
  56.       &lt;currency&gt;SAR&lt;/currency&gt;
  57.       &lt;name&gt;coffee&lt;/name&gt;
  58.       &lt;quantity&gt;1&lt;/quantity&gt;
  59.     &lt;/product&gt;
  60.     &lt;catalog&gt;&lt;id&gt;326185462964376&lt;/id&gt;&lt;/catalog&gt;
  61.     &lt;price&gt;
  62.       &lt;subtotal&gt;5000&lt;/subtotal&gt;
  63.       &lt;currency&gt;SAR&lt;/currency&gt;
  64.       &lt;total&gt;5000&lt;/total&gt;
  65.       &lt;price_status&gt;provided&lt;/price_status&gt;
  66.     &lt;/price&gt;
  67.   &lt;/order&gt;
  68. &lt;/iq&gt;`
  70. 	iq := &amp;Iq{}
  72. 	err := xml.Unmarshal([]byte(contents), &amp;iq)
  73. 	if err != nil {
  74. 		panic(err)
  75. 	}
  76. 	fmt.Printf(&quot;%v\n&quot;, iq.Order)
  77. }

答案1

得分: 5

基于@collapsar的答案...

尽管XML格式不正确，但您仍然可以通过创建一个Decoder实例并关闭Strict模式来处理它：

  1. d := xml.NewDecoder(bytes.NewReader([]byte(contents)))
  2. d.Strict = false
  3. err := d.Decode(&iq)
  4. if err != nil {
  5.     panic(err)
  6. }
  7. fmt.Printf("%v\n", iq.Order)

Go Playground

有关参考，请参阅https://pkg.go.dev/encoding/xml#Decoder。

英文:

Building on the answer from @collapsar...

Despite the XML being malformed, you can still process it by creating a Decoder instance and turning off Strict mode:

  1. d := xml.NewDecoder(bytes.NewReader([]byte(contents)))
  2. d.Strict = false
  3. err := d.Decode(&amp;iq)
  4. if err != nil {
  5. panic(err)
  6. }
  7. fmt.Printf(&quot;%v\n&quot;, iq.Order)

Go Playground

For reference, see https://pkg.go.dev/encoding/xml#Decoder.

答案2

得分: 3

你的代码中的 XML 不是格式良好的。

XML 片段包含一个名为 url 的元素，其中包含一个带有多个参数的 URL，这些参数在查询字符串部分由和号 &amp; 分隔。

在 XML 中，这个符号具有特殊的语义，用于引用实体（一种符号常量）- 你不能单独使用它。

要么将 URL 写成 CDATA 部分（其中的内容被视为字面值，语法：&lt;![CDATA[...]]&gt;），要么将所有的 &amp; 替换为 &amp;amp;（使用实体引用来转义和号符号，在这里有效地用作转义机制）。

英文:

The xml in your code is not well-formed.

The xml fragment contains an element url which contains a url with multiple parameters in its query string portion, separated by ampersands &amp;.

This symbol has special semantics in xml in initiating an entity reference (kind of a symbolic constant) - you cannot use it in isolation.

Either write the url as a CDATA section (the contents of which are considered a literal, Syntax: &lt;![CDATA[...]]&gt;) or replace all occurrences of &amp; with &amp;amp; (using the entity reference for the sports and symbol; effectively used here as an escaping mechanism).

huangapple
  • 本文由 发表于 2022年5月5日 06:48:48
  • 转载请务必保留本文链接：https://go.coder-hub.com/72120226.html
  • go
  • xml
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