使用Golang解析xml

本示例代码使用包 encoding/xml解析xml文件。

package main

import (
    "encoding/xml"
    "fmt"
    "io/ioutil"
)

// 使用如下xml文件进行测试
/*
<Stu note="MyNote">
    <name>myName</name>
    <parent>
        <father>myFather</father>
        <mother>myMother</mother>
    </parent>
</Stu>
*/

func checkError(err error) {
    if err != nil {
        panic(err)
    }
}

type Stu struct {
    Name    string `xml:"name"`
    Address string `xml:"addr,omitempty"`
    Secret  string `xml:"-"`
    Father  string `xml:"parent>father"`
    Mother  string `xml:"parent>mother"`
    // Par     Parent `xml:"parent"`
    Note string `xml:"note,attr"`
}

// type Parent struct {
//  Father string `xml:"father"`
//  Mother string `xml:"mother"`
// }

func main() {
    stu := &Stu{
        Name:   "myName",
        Secret: "mySecret",
        Father: "myFather",
        Mother: "myMother",
        Note:   "MyNote",
    }

    // data, err := xml.Marshal(stu)
    data, err := xml.MarshalIndent(stu, "", "   ")
    checkError(err)

    err = ioutil.WriteFile("stu.xml", data, 0644)
    checkError(err)

    content, err := ioutil.ReadFile("stu.xml")
    checkError(err)

    stuNew := &Stu{}
    err = xml.Unmarshal(content, stuNew)
    checkError(err)

    fmt.Printf("content is : %#v\n", stuNew)

    fmt.Println(">>> stuNew.Name: ", stuNew.Name)
}