Operating system: CentOS 6.9_x64
Go language version: 1.8.3
Problem description
There is an automatic failure report program. If a service error occurs, it will automatically send an email to the designated person. The configuration file content is as follows ():
<?xml version="1.0" encoding="UTF-8"?>
<config>
<smtpServer>smtp.</smtpServer>
<smtpPort>25</smtpPort>
<sender>user@</sender>
<senderPasswd>123456</senderPasswd>
<receivers flag="true">
<user>Mike_Zhang@</user>
<user>test1@</user>
</receivers>
</config>
This configuration takes config as the root tag, with xml text part (such as smtpServer tag), nested xml (receivers tag), xml attribute part (receivers tag flag), array-like multi-line configuration (user tag), and data types are two types: string and number.
Solution
package main
import (
"encoding/xml"
"fmt"
"io/ioutil"
"os"
)
type SConfig struct {
XMLName `xml:"config"` // Specify the outermost label as config SmtpServer string `xml:"smtpServer"` // Read the smtpServer configuration item and save the result to the SmtpServer variable SmtpPort int `xml:"smtpPort"`
Sender string `xml:"sender"`
SenderPasswd string `xml:"senderPasswd"`
Receivers SReceivers `xml:"receivers"` // Read the content under the receivers tag and obtain it in a structural manner}
type SReceivers struct {
Flag string `xml:"flag,attr"` // Read flag attribute User []string `xml:"user"` // Read user array}
func main() {
file, err := ("") // For read access.
if err != nil {
("error: %v", err)
return
}
defer ()
data, err := (file)
if err != nil {
("error: %v", err)
return
}
v := SConfig{}
err = (data, &v)
if err != nil {
("error: %v", err)
return
}
(v)
("SmtpServer : ",)
("SmtpPort : ",)
("Sender : ",)
("SenderPasswd : ",)
(" : ",)
for i,element := range {
(i,element)
}
}
Running effect:
[root@local t1]# ls
[root@local t1]# go run
{{ config} smtp. 25 user@ 123456 {true [Mike_Zhang@ test1@]}}
SmtpServer : smtp.
SmtpPort : 25
Sender : user@
SenderPasswd : 123456
: true
Mike_Zhang@
test1@
[root@local t1]#
discuss
If you need to parse the xml configuration directly from the string, you can replace the data in the following statement:
err = (data, &v)
for example:
err = ([]byte(ConfigContent), &v) // ConfigContentforxmlString
OK, that's all, I hope it will be helpful to you.
The above article is the implementation method of parsing XML using Go language (must-read) which is shared with you by the editor. I hope it can give you a reference and I hope you can support me more.