提交kit/utils

Signed-off-by: lixxxww <941403820@qq.com>
This commit is contained in:
lixxxww
2024-01-23 11:57:42 +00:00
committed by Gitee
parent c456d1249e
commit 0ff66b9d43
19 changed files with 1550 additions and 0 deletions

43
kit/utils/ddm.go Normal file
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package utils
/**
* @Description 添加qq群467890197 交流学习
* @Author 熊猫
* @Date 2022/1/13 17:16
**/
func DdmKey(data string) string {
if len(data) < 6 {
return data
}
return data[:3] + "****" + data[len(data)-3:]
}
func IsDdmKey(data string) bool {
if len(data) > 6 && data[3:len(data)-3] == "****" {
return true
}
return false
}
func DdmMail(data string) string {
return data[:3] + "****" + data[len(data)-8:]
}
func ISDdmMail(data string) bool {
if len(data) > 11 && data[3:len(data)-8] == "****" {
return true
}
return false
}
func DdmPassword(data string) string {
return "******"
}
func IsDdmPassword(data string) bool {
if data == "******" {
return true
}
return false
}

26
kit/utils/ddm_test.go Normal file
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package utils
import (
"testing"
)
/**
* @Description 添加qq群467890197 交流学习
* @Author 熊猫
* @Date 2022/1/17 10:01
**/
func TestDdmKey(t *testing.T) {
aa := "fsdfsf535343sdfsdf3"
bb := "23423423@qq.com"
key := DdmKey(aa)
t.Log(key)
ddmKey := IsDdmKey(key)
t.Log(ddmKey)
mail := DdmMail(bb)
t.Log(mail)
ismail := ISDdmMail(mail)
t.Log(ismail)
}

46
kit/utils/excel.go Normal file
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package utils
import (
"fmt"
"github.com/xuri/excelize/v2"
"reflect"
)
func ExportExcel(head []string, datas [][]any, filePath string) error {
excel := excelize.NewFile()
excel.SetSheetRow("Sheet1", "A1", &head)
for i, data := range datas {
axis := fmt.Sprintf("A%d", i+2)
excel.SetSheetRow("Sheet1", axis, &data)
}
excel.SaveAs(filePath)
return nil
}
func GetFileName(path, filename string) string {
return path + filename
}
func InterfaceToExcel(data any, fileName string) {
heads := make([]string, 0)
datas := make([][]any, 0)
v := reflect.ValueOf(data)
max := int64(v.Len())
for i := 0; i < int(max); i++ {
u := v.Index(i).Interface()
var key = reflect.TypeOf(u)
var val = reflect.ValueOf(u)
num := key.NumField()
if i == 0 {
for i := 0; i < num; i++ {
heads = append(heads, key.Field(i).Name)
}
}
field := make([]any, 0)
for i := 0; i < num; i++ {
field = append(field, val.Field(i).Interface())
}
datas = append(datas, field)
}
ExportExcel(heads, datas, fileName)
}

19
kit/utils/excel_test.go Normal file
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package utils
import (
"testing"
)
type User struct {
Name string `json:"name"`
Age int64 `json:"age"`
}
func TestExportExcel(t *testing.T) {
us := make([]User, 0)
us = append(us, User{Name: "张三", Age: 12})
us = append(us, User{Name: "李四", Age: 23})
name := GetFileName("./", "字典")
t.Log(name)
InterfaceToExcel(us, name)
}

26
kit/utils/float_to_f.go Normal file
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package utils
import (
"fmt"
"strconv"
)
func ParseFloat2F(value float64) float64 {
newValue, err := strconv.ParseFloat(fmt.Sprintf("%.2f", value), 64)
if err != nil {
fmt.Println("保留2位小数, 转换float出错")
return value
}
return newValue
}
func ParseStringToInt64(value string) int64 {
newValue, err := strconv.ParseInt(value, 10, 64)
if err != nil {
fmt.Println("string转换int64出错")
return 0
}
return newValue
}

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53
kit/utils/ip.go Normal file
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package utils
import (
"fmt"
"net"
"pandax/kit/httpclient"
)
const ipurl = "https://ip.cn/api/index"
const UNKNOWN = "XX XX"
// GetRealAddressByIP 获取真实地址
func GetRealAddressByIP(ip string) string {
if ip == "127.0.0.1" || ip == "localhost" {
return "内部IP"
}
url := fmt.Sprintf("%s?ip=%s&type=1", ipurl, ip)
res := httpclient.NewRequest(url).Get()
if res == nil || res.StatusCode != 200 {
return UNKNOWN
}
toMap, err := res.BodyToMap()
if err != nil {
return UNKNOWN
}
return toMap["address"].(string)
}
// 获取局域网ip地址
func GetLocaHonst() string {
netInterfaces, err := net.Interfaces()
if err != nil {
fmt.Println("net.Interfaces failed, err:", err.Error())
}
for i := 0; i < len(netInterfaces); i++ {
if (netInterfaces[i].Flags & net.FlagUp) != 0 {
addrs, _ := netInterfaces[i].Addrs()
for _, address := range addrs {
if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
if ipnet.IP.To4() != nil {
return ipnet.IP.String()
}
}
}
}
}
return ""
}

14
kit/utils/json_utils.go Normal file
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package utils
import (
"encoding/json"
)
func Json2Map(jsonStr string) map[string]any {
var res map[string]any
if jsonStr == "" {
return res
}
_ = json.Unmarshal([]byte(jsonStr), &res)
return res
}

42
kit/utils/regexp.go Normal file
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package utils
import (
"regexp"
"sync"
)
var (
regexMu = sync.RWMutex{}
// Cache for regex object.
// Note that:
// 1. It uses sync.RWMutex ensuring the concurrent safety.
// 2. There's no expiring logic for this map.
regexMap = make(map[string]*regexp.Regexp)
)
// getRegexp returns *regexp.Regexp object with given `pattern`.
// It uses cache to enhance the performance for compiling regular expression pattern,
// which means, it will return the same *regexp.Regexp object with the same regular
// expression pattern.
//
// It is concurrent-safe for multiple goroutines.
func GetRegexp(pattern string) (regex *regexp.Regexp, err error) {
// Retrieve the regular expression object using reading lock.
regexMu.RLock()
regex = regexMap[pattern]
regexMu.RUnlock()
if regex != nil {
return
}
// If it does not exist in the cache,
// it compiles the pattern and creates one.
regex, err = regexp.Compile(pattern)
if err != nil {
return
}
// Cache the result object using writing lock.
regexMu.Lock()
regexMap[pattern] = regex
regexMu.Unlock()
return
}

156
kit/utils/str_utils.go Normal file
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package utils
import (
"bytes"
"github.com/kakuilan/kgo"
"strings"
"text/template"
)
func UnicodeIndex(str, substr string) int {
// 子串在字符串的字节位置
result := strings.Index(str, substr)
if result >= 0 {
// 获得子串之前的字符串并转换成[]byte
prefix := []byte(str)[0:result]
// 将子串之前的字符串转换成[]rune
rs := []rune(string(prefix))
// 获得子串之前的字符串的长度,便是子串在字符串的字符位置
result = len(rs)
}
return result
}
func ReplaceString(pattern, replace, src string) (string, error) {
if r, err := GetRegexp(pattern); err == nil {
return r.ReplaceAllString(src, replace), nil
} else {
return "", err
}
}
func Contains(haystack, needle string, startOffset ...int) int {
length := len(haystack)
offset := 0
if len(startOffset) > 0 {
offset = startOffset[0]
}
if length == 0 || offset > length || -offset > length {
return -1
}
if offset < 0 {
offset += length
}
pos := strings.Index(strings.ToLower(haystack[offset:]), strings.ToLower(needle))
if pos == -1 {
return -1
}
return pos + offset
}
// 字符串模板解析
func TemplateResolve(temp string, data any) string {
t, _ := template.New("string-temp").Parse(temp)
var tmplBytes bytes.Buffer
err := t.Execute(&tmplBytes, data)
if err != nil {
panic(err)
}
return tmplBytes.String()
}
func ReverStrTemplate(temp, str string, res map[string]any) {
index := UnicodeIndex(temp, "{")
ei := UnicodeIndex(temp, "}") + 1
next := kgo.KStr.Trim(temp[ei:], " ")
nextContain := UnicodeIndex(next, "{")
nextIndexValue := next
if nextContain != -1 {
nextIndexValue = kgo.KStr.Substr(next, 0, nextContain)
}
key := temp[index+1 : ei-1]
// 如果后面没有内容了,则取字符串的长度即可
var valueLastIndex int
if nextIndexValue == "" {
valueLastIndex = kgo.KStr.MbStrlen(str)
} else {
valueLastIndex = UnicodeIndex(str, nextIndexValue)
}
value := kgo.KStr.Trim(kgo.KStr.Substr(str, index, valueLastIndex), " ")
res[key] = value
// 如果后面的还有需要解析的,则递归调用解析
if nextContain != -1 {
ReverStrTemplate(next, kgo.KStr.Trim(kgo.KStr.Substr(str, UnicodeIndex(str, value)+kgo.KStr.MbStrlen(value), kgo.KStr.MbStrlen(str))), res)
}
}
func B2S(bs []uint8) string {
ba := []byte{}
for _, b := range bs {
ba = append(ba, byte(b))
}
return string(ba)
}
func IdsStrToIdsIntGroup(keys string) []int64 {
IDS := make([]int64, 0)
ids := strings.Split(keys, ",")
for i := 0; i < len(ids); i++ {
ID := kgo.KConv.Str2Int(ids[i])
IDS = append(IDS, int64(ID))
}
return IDS
}
// 获取部门
// isP 是父ID 否则子ID
func DeptPCIds(deptIds []string, id int64, isP bool) []int64 {
pRes := make([]int64, 0)
cRes := make([]int64, 0)
is := true
for _, deptId := range deptIds {
did := kgo.KConv.Str2Int64(deptId)
if is {
pRes = append(pRes, did)
}
if kgo.KConv.Str2Int64(deptId) == id {
is = false
}
if !is {
cRes = append(cRes, did)
}
}
if isP {
return pRes
} else {
return cRes
}
}
// 获取组织
// isP 是父ID 否则子ID
func OrganizationPCIds(orgIds []string, id int64, isP bool) []int64 {
pRes := make([]int64, 0)
cRes := make([]int64, 0)
is := true
for _, orgId := range orgIds {
did := kgo.KConv.Str2Int64(orgId)
if is {
pRes = append(pRes, did)
}
if kgo.KConv.Str2Int64(orgId) == id {
is = false
}
if !is {
cRes = append(cRes, did)
}
}
if isP {
return pRes
} else {
return cRes
}
}

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package utils
import (
"log"
"strings"
"testing"
)
func TestIdsStrToIdsIntGroup(t *testing.T) {
group := IdsStrToIdsIntGroup("aaa")
t.Log(len(group))
}
func TestGetRealAddressByIP(t *testing.T) {
ip := GetRealAddressByIP("10.42.0.1")
t.Log(ip)
}
func TestDeptPCIds(t *testing.T) {
split := strings.Split(strings.Trim("/0/2", "/"), "/")
log.Println("split", split)
ids := DeptPCIds(split, 2, true)
t.Log(ids)
}

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package utils
import (
"fmt"
"reflect"
"strings"
"testing"
"time"
)
type Src struct {
Id *int64 `json:"id"`
Username string `json:"username"`
CreateTime time.Time `json:"time"`
UpdateTime time.Time
Inner *SrcInner
}
type SrcInner struct {
Name string
Desc string
Id int64
Dest *Dest
}
type Dest struct {
Username string
Id int64
CreateTime time.Time
Inner *DestInner
}
type DestInner struct {
Desc string
}
func TestDeepFields(t *testing.T) {
////src := Src{Username: "test", Id: 1000, CreateTime: time.Now()}
//si := SrcInner{Desc: "desc"}
//src.Inner = &si
////src.Id = 1222
//dest := new(Dest)
//err := structutils.Copy(dest, src)
//if err != nil {
// fmt.Println(err.Error())
//} else {
// fmt.Println(dest)
//}
}
func TestGetFieldNames(t *testing.T) {
//names := structutils.GetFieldNames(new(Src))
//fmt.Println(names)
}
func TestMaps2Structs(t *testing.T) {
mapInstance := make(map[string]any)
mapInstance["Username"] = "liang637210"
mapInstance["Id"] = 28
mapInstance["CreateTime"] = time.Now()
mapInstance["Creator"] = "createor"
mapInstance["Inner.Id"] = 10
mapInstance["Inner.Name"] = "hahah"
mapInstance["Inner.Desc"] = "inner desc"
mapInstance["Inner.Dest.Username"] = "inner dest uername"
mapInstance["Inner.Dest.Inner.Desc"] = "inner dest inner desc"
mapInstance2 := make(map[string]any)
mapInstance2["Username"] = "liang6372102"
mapInstance2["Id"] = 282
mapInstance2["CreateTime"] = time.Now()
mapInstance2["Creator"] = "createor2"
mapInstance2["Inner.Id"] = 102
mapInstance2["Inner.Name"] = "hahah2"
mapInstance2["Inner.Desc"] = "inner desc2"
mapInstance2["Inner.Dest.Username"] = "inner dest uername2"
mapInstance2["Inner.Dest.Inner.Desc"] = "inner dest inner desc2"
maps := make([]map[string]any, 2)
maps[0] = mapInstance
maps[1] = mapInstance2
res := new([]Src)
err := Maps2Structs(maps, res)
if err != nil {
fmt.Println(err)
}
}
func TestMap2Struct(t *testing.T) {
mapInstance := make(map[string]any)
mapInstance["Username"] = "liang637210"
mapInstance["Id"] = 12
mapInstance["CreateTime"] = time.Now()
mapInstance["Creator"] = "createor"
mapInstance["Inner.Id"] = nil
mapInstance["Inner.Name"] = "hahah"
mapInstance["Inner.Desc"] = "inner desc"
mapInstance["Inner.Dest.Username"] = "inner dest uername"
mapInstance["Inner.Dest.Inner.Desc"] = "inner dest inner desc"
//innerMap := make(map[string]interface{})
//innerMap["Name"] = "Innername"
//a := new(Src)
////a.Inner = new(SrcInner)
//
//stime := time.Now().UnixNano()
//for i := 0; i < 1000000; i++ {
// err := structutils.Map2Struct(mapInstance, a)
// if err != nil {
// fmt.Println(err)
// }
//}
//etime := time.Now().UnixNano()
//fmt.Println(etime - stime)
//if err != nil {
// fmt.Println(err)
//} else {
// fmt.Println(a)
//}
s := new(Src)
//name, b := structutils.IndirectType(reflect.TypeOf(s)).FieldByName("Inner")
//if structutils.IndirectType(name.Type).Kind() != reflect.Struct {
// fmt.Println(name.Name + "不是结构体")
//} else {
// //innerType := name.Type
// innerValue := structutils.Indirect(reflect.ValueOf(s)).FieldByName("Inner")
// //if innerValue.IsValid() && innerValue.IsNil() {
// // innerValue.Set(reflect.New(innerValue.Type().Elem()))
// //}
// if !innerValue.IsValid() {
// fmt.Println("is valid")
// } else {
// //innerValue.Set(reflect.New(innerValue.Type()))
// fmt.Println(innerValue.CanSet())
// fmt.Println(innerValue.CanAddr())
// //mapstructure.Decode(innerMap, innerValue.Addr().Interface())
// }
//
//}
//
//fmt.Println(name, b)
//将 map 转换为指定的结构体
// if err := decode(mapInstance, &s); err != nil {
// fmt.Println(err)
// }
fmt.Printf("map2struct后得到的 struct 内容为:%v", s)
}
func getPrefixKeyMap(m map[string]any) map[string]map[string]any {
key2map := make(map[string]map[string]any)
for k, v := range m {
if !strings.Contains(k, ".") {
continue
}
lastIndex := strings.LastIndex(k, ".")
prefix := k[0:lastIndex]
m2 := key2map[prefix]
if m2 == nil {
key2map[prefix] = map[string]any{k[lastIndex+1:]: v}
} else {
m2[k[lastIndex+1:]] = v
}
delete(m, k)
}
return key2map
}
func TestReflect(t *testing.T) {
type dog struct {
LegCount int
}
// 获取dog实例的反射值对象
valueOfDog := reflect.ValueOf(&dog{}).Elem()
// 获取legCount字段的值
vLegCount := valueOfDog.FieldByName("LegCount")
fmt.Println(vLegCount.CanSet())
fmt.Println(vLegCount.CanAddr())
// 尝试设置legCount的值(这里会发生崩溃)
vLegCount.SetInt(4)
}
func TestTemplateResolve(t *testing.T) {
d := make(map[string]string)
d["Name"] = "黄先生"
d["Age"] = "23jlfdsjf"
resolve := TemplateResolve("{{.Name}} is name, and {{.Age}} is age", d)
fmt.Println(resolve)
}

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kit/utils/sturct_utils.go Normal file
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package utils
import (
"database/sql"
"encoding/json"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
)
// Copy copy things引用至copier
func Copy(toValue any, fromValue any) (err error) {
var (
isSlice bool
amount = 1
from = Indirect(reflect.ValueOf(fromValue))
to = Indirect(reflect.ValueOf(toValue))
)
if !to.CanAddr() {
return errors.New("copy to value is unaddressable")
}
// Return is from value is invalid
if !from.IsValid() {
return
}
fromType := IndirectType(from.Type())
toType := IndirectType(to.Type())
// Just set it if possible to assign
// And need to do copy anyway if the type is struct
if fromType.Kind() != reflect.Struct && from.Type().AssignableTo(to.Type()) {
to.Set(from)
return
}
if fromType.Kind() != reflect.Struct || toType.Kind() != reflect.Struct {
return
}
if to.Kind() == reflect.Slice {
isSlice = true
if from.Kind() == reflect.Slice {
amount = from.Len()
}
}
for i := 0; i < amount; i++ {
var dest, source reflect.Value
if isSlice {
// source
if from.Kind() == reflect.Slice {
source = Indirect(from.Index(i))
} else {
source = Indirect(from)
}
// dest
dest = Indirect(reflect.New(toType).Elem())
} else {
source = Indirect(from)
dest = Indirect(to)
}
// check source
if source.IsValid() {
fromTypeFields := deepFields(fromType)
//fmt.Printf("%#v", fromTypeFields)
// Copy from field to field or method
for _, field := range fromTypeFields {
name := field.Name
if fromField := source.FieldByName(name); fromField.IsValid() {
// has field
if toField := dest.FieldByName(name); toField.IsValid() {
if toField.CanSet() {
if !set(toField, fromField) {
if err := Copy(toField.Addr().Interface(), fromField.Interface()); err != nil {
return err
}
}
}
} else {
// try to set to method
var toMethod reflect.Value
if dest.CanAddr() {
toMethod = dest.Addr().MethodByName(name)
} else {
toMethod = dest.MethodByName(name)
}
if toMethod.IsValid() && toMethod.Type().NumIn() == 1 && fromField.Type().AssignableTo(toMethod.Type().In(0)) {
toMethod.Call([]reflect.Value{fromField})
}
}
}
}
// Copy from method to field
for _, field := range deepFields(toType) {
name := field.Name
var fromMethod reflect.Value
if source.CanAddr() {
fromMethod = source.Addr().MethodByName(name)
} else {
fromMethod = source.MethodByName(name)
}
if fromMethod.IsValid() && fromMethod.Type().NumIn() == 0 && fromMethod.Type().NumOut() == 1 {
if toField := dest.FieldByName(name); toField.IsValid() && toField.CanSet() {
values := fromMethod.Call([]reflect.Value{})
if len(values) >= 1 {
set(toField, values[0])
}
}
}
}
}
if isSlice {
if dest.Addr().Type().AssignableTo(to.Type().Elem()) {
to.Set(reflect.Append(to, dest.Addr()))
} else if dest.Type().AssignableTo(to.Type().Elem()) {
to.Set(reflect.Append(to, dest))
}
}
}
return
}
// 对结构体的每个字段以及字段值执行doWith回调函数, 包括匿名属性的字段
func DoWithFields(str any, doWith func(fType reflect.StructField, fValue reflect.Value) error) error {
t := IndirectType(reflect.TypeOf(str))
if t.Kind() != reflect.Struct {
return errors.New("非结构体")
}
fieldNum := t.NumField()
v := Indirect(reflect.ValueOf(str))
for i := 0; i < fieldNum; i++ {
ft := t.Field(i)
fv := v.Field(i)
// 如果是匿名属性,则递归调用该方法
if ft.Anonymous {
DoWithFields(fv.Interface(), doWith)
continue
}
err := doWith(ft, fv)
if err != nil {
return err
}
}
return nil
}
func deepFields(reflectType reflect.Type) []reflect.StructField {
var fields []reflect.StructField
if reflectType = IndirectType(reflectType); reflectType.Kind() == reflect.Struct {
for i := 0; i < reflectType.NumField(); i++ {
v := reflectType.Field(i)
if v.Anonymous {
fields = append(fields, deepFields(v.Type)...)
} else {
fields = append(fields, v)
}
}
}
return fields
}
func Indirect(reflectValue reflect.Value) reflect.Value {
for reflectValue.Kind() == reflect.Ptr {
reflectValue = reflectValue.Elem()
}
return reflectValue
}
func IndirectType(reflectType reflect.Type) reflect.Type {
for reflectType.Kind() == reflect.Ptr || reflectType.Kind() == reflect.Slice {
reflectType = reflectType.Elem()
}
return reflectType
}
func set(to, from reflect.Value) bool {
if from.IsValid() {
if to.Kind() == reflect.Ptr {
//set `to` to nil if from is nil
if from.Kind() == reflect.Ptr && from.IsNil() {
to.Set(reflect.Zero(to.Type()))
return true
} else if to.IsNil() {
to.Set(reflect.New(to.Type().Elem()))
}
to = to.Elem()
}
if from.Type().ConvertibleTo(to.Type()) {
to.Set(from.Convert(to.Type()))
} else if scanner, ok := to.Addr().Interface().(sql.Scanner); ok {
err := scanner.Scan(from.Interface())
if err != nil {
return false
}
} else if from.Kind() == reflect.Ptr {
return set(to, from.Elem())
} else {
return false
}
}
return true
}
func Map2Struct(m map[string]any, s any) error {
toValue := Indirect(reflect.ValueOf(s))
if !toValue.CanAddr() {
return errors.New("to value is unaddressable")
}
innerStructMaps := getInnerStructMaps(m)
if len(innerStructMaps) != 0 {
for k, v := range innerStructMaps {
var fieldV reflect.Value
if strings.Contains(k, ".") {
fieldV = getFiledValueByPath(k, toValue)
} else {
fieldV = toValue.FieldByName(k)
}
if !fieldV.CanSet() || !fieldV.CanAddr() {
continue
}
fieldT := fieldV.Type().Elem()
if fieldT.Kind() != reflect.Struct {
return errors.New(k + "不是结构体")
}
// 如果值为nil则默认创建一个并赋值
if fieldV.IsNil() {
fieldV.Set(reflect.New(fieldT))
}
err := Map2Struct(v, fieldV.Addr().Interface())
if err != nil {
return err
}
}
}
var err error
for k, v := range m {
if v == nil {
continue
}
k = strings.Title(k)
// 如果key含有下划线则将其转为驼峰
if strings.Contains(k, "_") {
k = Case2Camel(k)
}
fieldV := toValue.FieldByName(k)
if !fieldV.CanSet() {
continue
}
err = decode(k, v, fieldV)
if err != nil {
return err
}
}
return nil
}
func Maps2Structs(maps []map[string]any, structs any) error {
structsV := reflect.Indirect(reflect.ValueOf(structs))
valType := structsV.Type()
valElemType := valType.Elem()
sliceType := reflect.SliceOf(valElemType)
length := len(maps)
valSlice := structsV
if valSlice.IsNil() {
// Make a new slice to hold our result, same size as the original data.
valSlice = reflect.MakeSlice(sliceType, length, length)
}
for i := 0; i < length; i++ {
err := Map2Struct(maps[i], valSlice.Index(i).Addr().Interface())
if err != nil {
return err
}
}
structsV.Set(valSlice)
return nil
}
func getFiledValueByPath(path string, value reflect.Value) reflect.Value {
split := strings.Split(path, ".")
for _, v := range split {
if value.Type().Kind() == reflect.Ptr {
// 如果值为nil则创建并赋值
if value.IsNil() {
value.Set(reflect.New(IndirectType(value.Type())))
}
value = value.Elem()
}
value = value.FieldByName(v)
}
return value
}
func getInnerStructMaps(m map[string]any) map[string]map[string]any {
key2map := make(map[string]map[string]any)
for k, v := range m {
if !strings.Contains(k, ".") {
continue
}
lastIndex := strings.LastIndex(k, ".")
prefix := k[0:lastIndex]
m2 := key2map[prefix]
if m2 == nil {
key2map[prefix] = map[string]any{k[lastIndex+1:]: v}
} else {
m2[k[lastIndex+1:]] = v
}
delete(m, k)
}
return key2map
}
// decode等方法摘抄自mapstructure库
func decode(name string, input any, outVal reflect.Value) error {
var inputVal reflect.Value
if input != nil {
inputVal = reflect.ValueOf(input)
// We need to check here if input is a typed nil. Typed nils won't
// match the "input == nil" below so we check that here.
if inputVal.Kind() == reflect.Ptr && inputVal.IsNil() {
input = nil
}
}
if !inputVal.IsValid() {
// If the input value is invalid, then we just set the value
// to be the zero value.
outVal.Set(reflect.Zero(outVal.Type()))
return nil
}
var err error
outputKind := getKind(outVal)
switch outputKind {
case reflect.Int:
err = decodeInt(name, input, outVal)
case reflect.Uint:
err = decodeUint(name, input, outVal)
case reflect.Float32:
err = decodeFloat(name, input, outVal)
case reflect.String:
err = decodeString(name, input, outVal)
case reflect.Ptr:
_, err = decodePtr(name, input, outVal)
default:
// If we reached this point then we weren't able to decode it
return fmt.Errorf("%s: unsupported type: %s", name, outputKind)
}
return err
}
func decodeInt(name string, data any, val reflect.Value) error {
dataVal := reflect.Indirect(reflect.ValueOf(data))
dataKind := getKind(dataVal)
dataType := dataVal.Type()
switch {
case dataKind == reflect.Int:
val.SetInt(dataVal.Int())
case dataKind == reflect.Uint:
val.SetInt(int64(dataVal.Uint()))
case dataKind == reflect.Float32:
val.SetInt(int64(dataVal.Float()))
case dataKind == reflect.Bool:
if dataVal.Bool() {
val.SetInt(1)
} else {
val.SetInt(0)
}
case dataKind == reflect.String:
i, err := strconv.ParseInt(dataVal.String(), 0, val.Type().Bits())
if err == nil {
val.SetInt(i)
} else {
return fmt.Errorf("cannot parse '%s' as int: %s", name, err)
}
case dataType.PkgPath() == "encoding/json" && dataType.Name() == "Number":
jn := data.(json.Number)
i, err := jn.Int64()
if err != nil {
return fmt.Errorf(
"error decoding json.Number into %s: %s", name, err)
}
val.SetInt(i)
default:
return fmt.Errorf(
"'%s' expected type '%s', got unconvertible type '%s'",
name, val.Type(), dataVal.Type())
}
return nil
}
func decodeUint(name string, data any, val reflect.Value) error {
dataVal := reflect.Indirect(reflect.ValueOf(data))
dataKind := getKind(dataVal)
dataType := dataVal.Type()
switch {
case dataKind == reflect.Int:
i := dataVal.Int()
if i < 0 {
return fmt.Errorf("cannot parse '%s', %d overflows uint",
name, i)
}
val.SetUint(uint64(i))
case dataKind == reflect.Uint:
val.SetUint(dataVal.Uint())
case dataKind == reflect.Float32:
f := dataVal.Float()
if f < 0 {
return fmt.Errorf("cannot parse '%s', %f overflows uint",
name, f)
}
val.SetUint(uint64(f))
case dataKind == reflect.Bool:
if dataVal.Bool() {
val.SetUint(1)
} else {
val.SetUint(0)
}
case dataKind == reflect.String:
i, err := strconv.ParseUint(dataVal.String(), 0, val.Type().Bits())
if err == nil {
val.SetUint(i)
} else {
return fmt.Errorf("cannot parse '%s' as uint: %s", name, err)
}
case dataType.PkgPath() == "encoding/json" && dataType.Name() == "Number":
jn := data.(json.Number)
i, err := jn.Int64()
if err != nil {
return fmt.Errorf(
"error decoding json.Number into %s: %s", name, err)
}
if i < 0 {
return fmt.Errorf("cannot parse '%s', %d overflows uint",
name, i)
}
val.SetUint(uint64(i))
default:
return fmt.Errorf(
"'%s' expected type '%s', got unconvertible type '%s'",
name, val.Type(), dataVal.Type())
}
return nil
}
func decodeFloat(name string, data any, val reflect.Value) error {
dataVal := reflect.Indirect(reflect.ValueOf(data))
dataKind := getKind(dataVal)
dataType := dataVal.Type()
switch {
case dataKind == reflect.Int:
val.SetFloat(float64(dataVal.Int()))
case dataKind == reflect.Uint:
val.SetFloat(float64(dataVal.Uint()))
case dataKind == reflect.Float32:
val.SetFloat(dataVal.Float())
case dataKind == reflect.Bool:
if dataVal.Bool() {
val.SetFloat(1)
} else {
val.SetFloat(0)
}
case dataKind == reflect.String:
f, err := strconv.ParseFloat(dataVal.String(), val.Type().Bits())
if err == nil {
val.SetFloat(f)
} else {
return fmt.Errorf("cannot parse '%s' as float: %s", name, err)
}
case dataType.PkgPath() == "encoding/json" && dataType.Name() == "Number":
jn := data.(json.Number)
i, err := jn.Float64()
if err != nil {
return fmt.Errorf(
"error decoding json.Number into %s: %s", name, err)
}
val.SetFloat(i)
default:
return fmt.Errorf(
"'%s' expected type '%s', got unconvertible type '%s'",
name, val.Type(), dataVal.Type())
}
return nil
}
func decodeString(name string, data any, val reflect.Value) error {
dataVal := reflect.Indirect(reflect.ValueOf(data))
dataKind := getKind(dataVal)
converted := true
switch {
case dataKind == reflect.String:
val.SetString(dataVal.String())
case dataKind == reflect.Bool:
if dataVal.Bool() {
val.SetString("1")
} else {
val.SetString("0")
}
case dataKind == reflect.Int:
val.SetString(strconv.FormatInt(dataVal.Int(), 10))
case dataKind == reflect.Uint:
val.SetString(strconv.FormatUint(dataVal.Uint(), 10))
case dataKind == reflect.Float32:
val.SetString(strconv.FormatFloat(dataVal.Float(), 'f', -1, 64))
case dataKind == reflect.Slice,
dataKind == reflect.Array:
dataType := dataVal.Type()
elemKind := dataType.Elem().Kind()
switch elemKind {
case reflect.Uint8:
var uints []uint8
if dataKind == reflect.Array {
uints = make([]uint8, dataVal.Len(), dataVal.Len())
for i := range uints {
uints[i] = dataVal.Index(i).Interface().(uint8)
}
} else {
uints = dataVal.Interface().([]uint8)
}
val.SetString(string(uints))
default:
converted = false
}
default:
converted = false
}
if !converted {
return fmt.Errorf(
"'%s' expected type '%s', got unconvertible type '%s'",
name, val.Type(), dataVal.Type())
}
return nil
}
func decodePtr(name string, data any, val reflect.Value) (bool, error) {
// If the input data is nil, then we want to just set the output
// pointer to be nil as well.
isNil := data == nil
if !isNil {
switch v := reflect.Indirect(reflect.ValueOf(data)); v.Kind() {
case reflect.Chan,
reflect.Func,
reflect.Interface,
reflect.Map,
reflect.Ptr,
reflect.Slice:
isNil = v.IsNil()
}
}
if isNil {
if !val.IsNil() && val.CanSet() {
nilValue := reflect.New(val.Type()).Elem()
val.Set(nilValue)
}
return true, nil
}
// Create an element of the concrete (non pointer) type and decode
// into that. Then set the value of the pointer to this type.
valType := val.Type()
valElemType := valType.Elem()
if val.CanSet() {
realVal := val
if realVal.IsNil() {
realVal = reflect.New(valElemType)
}
if err := decode(name, data, reflect.Indirect(realVal)); err != nil {
return false, err
}
val.Set(realVal)
} else {
if err := decode(name, data, reflect.Indirect(val)); err != nil {
return false, err
}
}
return false, nil
}
func getKind(val reflect.Value) reflect.Kind {
kind := val.Kind()
switch {
case kind >= reflect.Int && kind <= reflect.Int64:
return reflect.Int
case kind >= reflect.Uint && kind <= reflect.Uint64:
return reflect.Uint
case kind >= reflect.Float32 && kind <= reflect.Float64:
return reflect.Float32
default:
return kind
}
}
// 下划线写法转为驼峰写法
func Case2Camel(name string) string {
name = strings.Replace(name, "_", " ", -1)
name = strings.Title(name)
return strings.Replace(name, " ", "", -1)
}
func IsBlank(value reflect.Value) bool {
switch value.Kind() {
case reflect.String:
return value.Len() == 0
case reflect.Bool:
return !value.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return value.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return value.Uint() == 0
case reflect.Float32, reflect.Float64:
return value.Float() == 0
case reflect.Interface, reflect.Ptr:
return value.IsNil()
}
return reflect.DeepEqual(value.Interface(), reflect.Zero(value.Type()).Interface())
}

28
kit/utils/template.go Normal file
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@@ -0,0 +1,28 @@
package utils
import (
"bytes"
"text/template"
)
func parse(t *template.Template, vars any) string {
var tmplBytes bytes.Buffer
err := t.Execute(&tmplBytes, vars)
if err != nil {
panic(err)
}
return tmplBytes.String()
}
// 模板字符串解析
// str 模板字符串
// vars 参数变量
func TemplateParse(str string, vars any) string {
tmpl, err := template.New("tmpl").Parse(str)
if err != nil {
panic(err)
}
return parse(tmpl, vars)
}

74
kit/utils/tree_utils.go Normal file
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@@ -0,0 +1,74 @@
package utils
// ConvertToINodeArray 其他的结构体想要生成菜单树,直接实现这个接口
type INode interface {
// GetId获取id
GetId() int
// GetPid 获取父id
GetPid() int
// IsRoot 判断当前节点是否是顶层根节点
IsRoot() bool
SetChildren(childern any)
}
type INodes []INode
func (nodes INodes) Len() int {
return len(nodes)
}
func (nodes INodes) Swap(i, j int) {
nodes[i], nodes[j] = nodes[j], nodes[i]
}
func (nodes INodes) Less(i, j int) bool {
return nodes[i].GetId() < nodes[j].GetId()
}
// GenerateTree 自定义的结构体实现 INode 接口后调用此方法生成树结构
// nodes 需要生成树的节点
// selectedNode 生成树后选中的节点
// menuTrees 生成成功后的树结构对象
func GenerateTree(nodes []INode) (trees []INode) {
trees = []INode{}
// 定义顶层根和子节点
var roots, childs []INode
for _, v := range nodes {
if v.IsRoot() {
// 判断顶层根节点
roots = append(roots, v)
}
childs = append(childs, v)
}
for _, v := range roots {
// 递归
setChildren(v, childs)
trees = append(trees, v)
}
return
}
// recursiveTree 递归生成树结构
// tree 递归的树对象
// nodes 递归的节点
// selectedNodes 选中的节点
func setChildren(parent INode, nodes []INode) {
children := []INode{}
for _, v := range nodes {
if v.IsRoot() {
// 如果当前节点是顶层根节点就跳过
continue
}
if parent.GetId() == v.GetPid() {
children = append(children, v)
}
}
if len(children) == 0 {
return
}
parent.SetChildren(children)
for _, c := range children {
setChildren(c, nodes)
}
}

27
kit/utils/yml.go Normal file
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@@ -0,0 +1,27 @@
package utils
import (
"errors"
"io/ioutil"
"gopkg.in/yaml.v3"
)
// 从指定路径加载yaml文件
func LoadYml(path string, out any) error {
yamlFileBytes, readErr := ioutil.ReadFile(path)
if readErr != nil {
return readErr
}
// yaml解析
err := yaml.Unmarshal(yamlFileBytes, out)
if err != nil {
return errors.New("无法解析 [" + path + "] -- " + err.Error())
}
return nil
}
func LoadYmlByString(yamlStr string, out any) error {
// yaml解析
return yaml.Unmarshal([]byte(yamlStr), out)
}