英文:
How to print new lines in Golang template?
问题
我在MySQL中存储了一些内容，看起来像这样。
"Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.google.com"
当我在Golang模板中打印它时，它没有正确解析。我的意思是所有内容都显示在一行上。
它应该打印如下：
Hi!How are you?Here is the link you wanted:http://www.google.com
这是我的模板代码。
<tr><td>TextBody</td><td>{{.Data.Content}}</td></tr>
我漏掉了什么吗？
英文:
I have stored some content in MySQL that looks like this.
"Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.google.com"
When I print it in Golang template, its not parsing correctly. I mean everything displayed in one line.
Its supposed to print like this
Hi!How are you?Here is the link you wanted:http://www.google.com
Here is my template code.
<tr><td>TextBody</td><td>{{.Data.Content}}</td></tr>
Am I missing something?
答案1
得分: 2
在这里，您可以使用Split函数来解析字符串并使用sep作为分隔符将子字符串拆分为片段。
package mainimport ("fmt""strings")func main() {txt := "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.google.com"res := strings.Split(txt, "\n")for _, val := range res {fmt.Println(val)}}
输出将是：
Hi!How are you?Here is the link you wanted:http://www.google.com
在Go Playground上的示例。
英文:
Here you can use the Split function to parse the string and split the substring into slices using the sep as separator.
package mainimport ("fmt""strings")func main() {txt := "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.google.com"res := strings.Split(txt, "\n")for _, val := range res {fmt.Println(val)}}
The output will be:
Hi!How are you?Here is the link you wanted:http://www.google.com
Example on Go Playground.
答案2
得分: 2
要在浏览器中打印此内容，请将\n替换为例如<br>，例如body = strings.Replace(body, "\n", "<br>", -1)。请参阅以下示例代码：
package mainimport ("bytes""fmt""html/template""log""net/http""strings")func main() {http.HandleFunc("/", ServeHTTP)if err := http.ListenAndServe(":80", nil); err != nil {log.Fatal(err)}}func ServeHTTP(w http.ResponseWriter, r *http.Request) {html := `<!DOCTYPE html><html><body><table style="width:100%"><tr><th>Data</th><th>Content</th></tr><tr><td>{{.Data}}</td><td>{{.Content}}</td></tr></table></body></html>`st := "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.google.com"data := DataContent{"data", st}buf := &bytes.Buffer{}t := template.Must(template.New("template1").Parse(html))if err := t.Execute(buf, data); err != nil {panic(err)}body := buf.String()body = strings.Replace(body, "\n", "<br>", -1)fmt.Fprint(w, body)}type DataContent struct {Data, Content string}
要查看输出，请运行此代码并在浏览器中打开http://127.0.0.1/。
另请参阅：https://stackoverflow.com/questions/13779027/html-templates-replacing-newlines-with-br
希望对您有所帮助。
英文:
To print this in browser, replace \n with e.g. <br>
like body = strings.Replace(body, "\n", "<br>", -1)
See this working sample code:
package mainimport ("bytes""fmt""html/template""log""net/http""strings")func main() {http.HandleFunc("/", ServeHTTP)if err := http.ListenAndServe(":80", nil); err != nil {log.Fatal(err)}}func ServeHTTP(w http.ResponseWriter, r *http.Request) {html := `<!DOCTYPE html><html><body><table style="width:100%"><tr><th>Data</th><th>Content</th></tr><tr><td>{{.Data}}</td><td>{{.Content}}</td></tr></table></body></html>`st := "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.google.com"data := DataContent{"data", st}buf := &bytes.Buffer{}t := template.Must(template.New("template1").Parse(html))if err := t.Execute(buf, data); err != nil {panic(err)}body := buf.String()body = strings.Replace(body, "\n", "<br>", -1)fmt.Fprint(w, body)}type DataContent struct {Data, Content string}
To see the output, run this code and open your browser at http://127.0.0.1/
Also see: https://stackoverflow.com/questions/13779027/html-templates-replacing-newlines-with-br
I hope this helps.
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