如何使用我的结构从切片显示表格 [英] How to show a table from a slice with my struct
问题描述
我想显示一个表格，每一行都包含我的结构数据.
这是我的结构:
type My_Struct struct {FIRST_FIELD字符串SECOND_FIELD字符串THIED_FIELD字符串} 这是我的html代码:
<表id ="t01">< tr><第一场</th>< th>第二字段</th><第三>第三场</tr>< tr>< td> FIRST_OBJ_HERE_SHOULD_BE_THE_FIRST_FIELD</td>< td> FIRST_OBJ_HERE_SHOULD_BE_THE_SECOND_FIELD</td>< td> FIRST_OBJ_HERE_SHOULD_BE_THE_THIRD_FIELD</td></tr>< tr>< td> SECOND_OBJ_HERE_SHOULD_BE_THE_FIRST_FIELD</td>< td> SECOND_OBJ_HERE_SHOULD_BE_THE_SECOND_FIELD</td>< td> SECOND_OBJ_HERE_SHOULD_BE_THE_THIRD_FIELD</td></tr></table> 如您所见，我想将包含结构的切片(每个包含3个文件)传递给此html代码，并且希望将整个切片设置在此表中-每行包含一个struct数据./p>
我该如何实现?
似乎您想要进入模板包.
这是一个如何使用它的示例:定义一个处理程序，该处理程序将带有一些已定义字段的结构实例传递给使用Go模板的视图:
type MyStruct struct {SomeField字符串}func MyStructHandler(w http.ResponseWriter，r * http.Request){ms:= MyStruct {SomeField:"Hello Friends"，}t:= template.Must(template.ParseFiles("./showmystruct.html"))t.Execute(w，ms)} 在视图(showmystruct.html)中使用Go Template语法访问结构字段:
<！DOCTYPE html>< title>显示我的结构</title>< h1> {{.SomeField}}</h1> 更新
如果您特别希望传递列表并对其进行遍历，则 {{range}} 关键字非常有用.另外，有一种非常常见的模式(至少在我的世界中)，您可以将 PageData {} 结构传递给视图.
这是一个扩展的示例，添加了一个结构列表和一个 PageData 结构(以便我们可以在模板中访问其字段):
type MyStruct struct {SomeField字符串}输入PageData struct {标题字符串数据[] MyStruct}func MyStructHandler(w http.ResponseWriter，r * http.Request){数据:= PageData {标题:我的超棒结构页面"，数据:[] MyStruct {MyStruct {SomeField:"Hello Friends"，}，MyStruct {SomeField:再见朋友"，}，}t:= template.Must(template.ParseFiles("./showmystruct.html"))t.Execute(w，数据)} 以及修改后的模板(showmystruct.html):
<！DOCTYPE html>< title> {{.Title}}</title>< ul>{{range .Data}}< li> {{.SomeField}}</li>{{ 结尾 }}</ul> I want to show a table that each row contains my struct data.
Here is my struct:
type My_Struct struct {
FIRST_FIELD string
SECOND_FIELD string
THIED_FIELD string
}
Here is my html code:
<table id="t01">
<tr>
<th>FIRST FIELD</th>
<th>SECOND FIELD</th>
<th>THIRD FIELD</th>
</tr>
<tr>
<td>FIRST_OBJ_HERE_SHOULD_BE_THE_FIRST_FIELD</td>
<td>FIRST_OBJ_HERE_SHOULD_BE_THE_SECOND_FIELD</td>
<td>FIRST_OBJ_HERE_SHOULD_BE_THE_THIRD_FIELD</td>
</tr>
<tr>
<td>SECOND_OBJ_HERE_SHOULD_BE_THE_FIRST_FIELD</td>
<td>SECOND_OBJ_HERE_SHOULD_BE_THE_SECOND_FIELD</td>
<td>SECOND_OBJ_HERE_SHOULD_BE_THE_THIRD_FIELD</td>
</tr>
</table>
As you see, I want to pass a slice with my struct (each one contains 3 files) to this html code, and I want the the whole slice will be set in this table - each row contains one struct data.
How can I achieve this?
It seems like you want the Go Template package.
Here's an example of how you may use it: Define a handler that passes an instance of a struct with some defined field(s) to a view that uses Go Templates:
type MyStruct struct {
SomeField string
}
func MyStructHandler(w http.ResponseWriter, r *http.Request) {
ms := MyStruct{
SomeField: "Hello Friends",
}
t := template.Must(template.ParseFiles("./showmystruct.html"))
t.Execute(w, ms)
}
Access the struct fields using the Go Template syntax in your view (showmystruct.html):
<!DOCTYPE html>
<title>Show My Struct</title>
<h1>{{ .SomeField }}</h1>
Update
If you are interested particularly in passing a list, and iterating over that, then the {{ range }} keyword is useful. Also, there's a pretty common pattern (at least in my world) where you pass a PageData{} struct to the view.
Here's an expanded example, adding a list of structs, and a PageData struct (so we can access its fields in the template):
type MyStruct struct {
SomeField string
}
type PageData struct {
Title string
Data []MyStruct
}
func MyStructHandler(w http.ResponseWriter, r *http.Request) {
data := PageData{
Title: "My Super Awesome Page of Structs",
Data: []MyStruct{
MyStruct{
SomeField: "Hello Friends",
},
MyStruct{
SomeField: "Goodbye Friends",
},
}
t := template.Must(template.ParseFiles("./showmystruct.html"))
t.Execute(w, data)
}
And the modified template (showmystruct.html):
<!DOCTYPE html>
<title>{{ .Title }}</title>
<ul>
{{ range .Data }}
<li>{{ .SomeField }}</li>
{{ end }}
</ul>
这篇关于如何使用我的结构从切片显示表格的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
