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func.go
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func.go
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package frame
import (
"bytes"
"encoding/json"
"fmt"
"os"
"strconv"
)
/**
获取应用名称
*/
func AppName() string {
return App().AppName
}
/**
切片变成字符串切片
*/
func convertSliceToStrings(s interface{}) []string {
result := make([]string, 0)
switch s.(type) {
case []interface{}:
for _, v := range s.([]interface{}) {
result = append(result, convertToString(v))
}
case []int:
for _, v := range s.([]int) {
result = append(result, convertToString(v))
}
case []string:
for _, v := range s.([]string) {
result = append(result, convertToString(v))
}
case []float64:
for _, v := range s.([]float64) {
result = append(result, convertToString(v))
}
case []float32:
for _, v := range s.([]float32) {
result = append(result, convertToString(v))
}
case []int8:
for _, v := range s.([]int8) {
result = append(result, convertToString(v))
}
case []int16:
for _, v := range s.([]int16) {
result = append(result, convertToString(v))
}
case []int32:
for _, v := range s.([]int32) {
result = append(result, convertToString(v))
}
case []int64:
for _, v := range s.([]int64) {
result = append(result, convertToString(v))
}
case []bool:
for _, v := range s.([]bool) {
result = append(result, convertToString(v))
}
default:
return result
}
return result
}
/**
将切片分成多个切片
*/
func arrayChunk(data []map[string]interface{}, onceMaxCount int) [][]map[string]interface{} {
beginIndex := 0
endIndex := 0
maxLen := len(data)
result := make([][]map[string]interface{}, 0)
for {
if beginIndex < maxLen {
endIndex = beginIndex + onceMaxCount
if endIndex > maxLen {
endIndex = maxLen
}
buffer := make([]map[string]interface{}, 0)
for i := beginIndex; i < endIndex; i++ {
buffer = append(buffer, data[i])
}
beginIndex = endIndex
result = append(result, buffer)
} else {
break
}
}
return result
}
/**
字符串加转义
*/
func addSlashes(str string) string {
tmpRune := make([]rune, 0)
strRune := []rune(str)
for _, ch := range strRune {
switch ch {
case []rune{'\\'}[0], []rune{'"'}[0], []rune{'\''}[0]:
tmpRune = append(tmpRune, []rune{'\\'}[0])
tmpRune = append(tmpRune, ch)
default:
tmpRune = append(tmpRune, ch)
}
}
return string(tmpRune)
}
/**
任意字符变成字符串
*/
func convertToString(v interface{}) string {
switch v.(type) {
case int:
return strconv.Itoa(v.(int))
case string:
return v.(string)
case int8:
return strconv.Itoa(int(v.(int8)))
case int16:
return strconv.Itoa(int(v.(int16)))
case int32:
return strconv.Itoa(int(v.(int32)))
case int64:
return strconv.Itoa(int(v.(int64)))
case float32:
return fmt.Sprintf("%.2f", v.(float32))
case float64:
return fmt.Sprintf("%.2f", v.(float64))
case bool:
if v.(bool) {
return "true"
} else {
return "false"
}
default:
return ""
}
}
//json非转义
func jsonMarshal(t interface{}) ([]byte, error) {
buffer := &bytes.Buffer{}
encoder := json.NewEncoder(buffer)
encoder.SetEscapeHTML(false)
err := encoder.Encode(t)
return buffer.Bytes(), err
}
// 判断文件夹是否存在
func pathExists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}