使用go语言解析xml的实现方法(必看篇)

<?xml version="1.0" encoding="UTF-8"?><config>  <smtpServer>smtp.163.com</smtpServer>  <smtpPort>25</smtpPort>  <sender>user@163.com</sender>  <senderPasswd>123456</senderPasswd>  <receivers flag="true">    <user>Mike_Zhang@live.com</user>    <user>test1@qq.com</user>  </receivers></config>

package mainimport (  "encoding/xml"  "fmt"  "io/ioutil"  "os")type SConfig struct {  XMLName  xml.Name `xml:"config"` // 指定最外层的标签为config  SmtpServer string `xml:"smtpServer"` // 读取smtpServer配置项，并将结果保存到SmtpServer变量中  SmtpPort int `xml:"smtpPort"`  Sender string `xml:"sender"`  SenderPasswd string `xml:"senderPasswd"`  Receivers SReceivers `xml:"receivers"` // 读取receivers标签下的内容，以结构方式获取}type SReceivers struct {  Flag string `xml:"flag,attr"` // 读取flag属性  User []string `xml:"user"` // 读取user数组}func main() {  file, err := os.Open("default.xml") // For read access.  if err != nil {    fmt.Printf("error: %v", err)    return  }  defer file.Close()  data, err := ioutil.ReadAll(file)  if err != nil {    fmt.Printf("error: %v", err)    return  }  v := SConfig{}  err = xml.Unmarshal(data, &v)  if err != nil {    fmt.Printf("error: %v", err)    return  }  fmt.Println(v)  fmt.Println("SmtpServer : ",v.SmtpServer)  fmt.Println("SmtpPort : ",v.SmtpPort)  fmt.Println("Sender : ",v.Sender)  fmt.Println("SenderPasswd : ",v.SenderPasswd)  fmt.Println("Receivers.Flag : ",v.Receivers.Flag)  for i,element := range v.Receivers.User {    fmt.Println(i,element)  }}

[root@local t1]# lsdefault.xml xmlCnfTest1.go[root@local t1]# go run xmlCnfTest1.go{{ config} smtp.163.com 25 user@163.com 123456 {true [Mike_Zhang@live.com test1@qq.com]}}SmtpServer : smtp.163.comSmtpPort : 25Sender : user@163.comSenderPasswd : 123456Receivers.Flag : trueMike_Zhang@live.comtest1@qq.com[root@local t1]#

err = xml.Unmarshal(data, &v)

err = xml.Unmarshal([]byte(ConfigContent), &v) // ConfigContent为xml字符串