读取本地json文件，修改数据后保存

[B-E]

使用go，读取本地json文件，对文件中的数据进行修改或写入，后保存，怎么做？

[qybao]

for example

import (
    "os"
    "encoding/json"
    "io/ioutil"
)
type yourjson strut {
  //difine your json struct
}

func main() { //ignore error handler
    yourfile, _ := os.Open("yourjson.json")
    defer yourfile.Close()
    bs, _ := ioutil.ReadAll(yourfile) //read json file to bytes
    js := &yourjson{}
    json.Unmarshal(bs, js) //conver json bytes to struct
    js.xxx = yyy //modify your json struct
    newbs, _ := json.MarshalIndent(js, "", " ") //convert struct to bytes
    ioutil.WriteFile("yournewjson.json", newbs, 0644) //write json bytes to file
}

[B-E]

引用 1 楼 qybao的回复:

for example

import (
    "os"
    "encoding/json"
    "io/ioutil"
)
type yourjson strut {
  //difine your json struct
}

func main() { //ignore error handler
    yourfile, _ := os.Open("yourjson.json")
    defer yourfile.Close()
    bs, _ := ioutil.ReadAll(yourfile) //read json file to bytes
    js := &yourjson{}
    json.Unmarshal(bs, js) //conver json bytes to struct
    js.xxx = yyy //modify your json struct
    newbs, _ := json.MarshalIndent(js, "", " ") //convert struct to bytes
    ioutil.WriteFile("yournewjson.json", newbs, 0644) //write json bytes to file
}

好的，尝试了一下，成功实现。感谢大佬