golang parses the xml method

The example in this article shows how golang parses xml. I will share it with you for your reference as follows:

golang parses xml really well, especially the tag of the struct attribute, which makes the program a lot easier. Other languages require special types of tag to be comfortable using golang directly

Click here to download the xml file.

Complete sample code:

package main

import (

    "os"

    "encoding/xml"

    // "encoding/json"

    "io/ioutil"

    "fmt"

)

type Location struct {

    CountryRegion []CountryRegion

}

type CountryRegion struct {

    Name string `xml:",attr"`

    Code string `xml:",attr"`

    State []State

}

type State struct {

    Name string `xml:",attr"`

    Code string `xml:",attr"`

    City []City

}

type City struct {

    Name string `xml:",attr"`

    Code string `xml:",attr"`

    Region []Region

}

type Region struct {

    Name string `xml:",attr"`

    Code string `xml:",attr"`

}

func main() {

    f, err := os.Open("LocList.xml")

    if err != nil {

        panic(err)

    }

    data, err := ioutil.ReadAll(f)

    if err != nil {

        panic(err)

    }

    // v := make(map[string]interface{})

    var v Location

    err = xml.Unmarshal(data, &v)

    if err != nil {

        panic(err)

    }

    // fmt.Printf("%#v\n", v)

    // table

    for _, countryRegion := range v.CountryRegion {

        // fmt.Printf("%s,%s\n", countryRegion.Code, countryRegion.Name)

        if len(countryRegion.State) == 0 {

            continue

        }

        for _, state := range countryRegion.State {

            // fmt.Printf("%s,%s,%s\n", countryRegion.Code, state.Code, state.Name)

            if len(state.City) == 0 {

                continue

            }

            for _, city := range state.City {

                // fmt.Printf("%s,%s,%s,%s\n", countryRegion.Code, state.Code, city.Code, city.Name)

                if len(city.Region) == 0 {

                    continue

                }

                for _, region := range city.Region {

                    fmt.Printf("%s,%s,%s,%s,%s\n", countryRegion.Code, state.Code, city.Code, region.Code, region.Name)

                }

            }

        }

    }

    // // json

    // js, err := json.Marshal(&v.CountryRegion[0])

    // if err != nil {

    //  panic(err)

    // }

    // fmt.Printf("%s\n", js)

}

I hope this article has been helpful to you in programming Go.