初始化项目

2025-01-06 16:01:02 +08:00
commit 1b77f62820
575 changed files with 69193 additions and 0 deletions
--- a/trunk/goutil/intAndBytesUtil/bytes.go
+++ b/trunk/goutil/intAndBytesUtil/bytes.go
@@ -0,0 +1,58 @@
+package intAndBytesUtil
+
+import (
+	"bytes"
+	"encoding/binary"
+)
+
+// 字节数组转换成整形
+// b：字节数组
+// order：大、小端的枚举
+// 返回值：对应的int值
+func BytesToInt(b []byte, order binary.ByteOrder) int {
+	bytesBuffer := bytes.NewBuffer(b)
+
+	var result int
+	binary.Read(bytesBuffer, order, &result)
+
+	return result
+}
+
+// 字节数组转换成整形
+// b：字节数组
+// order：大、小端的枚举
+// 返回值：对应的int16值
+func BytesToInt16(b []byte, order binary.ByteOrder) int16 {
+	bytesBuffer := bytes.NewBuffer(b)
+
+	var result int16
+	binary.Read(bytesBuffer, order, &result)
+
+	return result
+}
+
+// 字节数组转换成整形
+// b：字节数组
+// order：大、小端的枚举
+// 返回值：对应的int32值
+func BytesToInt32(b []byte, order binary.ByteOrder) int32 {
+	bytesBuffer := bytes.NewBuffer(b)
+
+	var result int32
+	binary.Read(bytesBuffer, order, &result)
+
+	return result
+}
+
+// 字节数组转换成整形
+// b：字节数组
+// order：大、小端的枚举
+// 返回值：对应的int64值
+func BytesToInt64(b []byte, order binary.ByteOrder) int64 {
+	bytesBuffer := bytes.NewBuffer(b)
+
+	var result int64
+	binary.Read(bytesBuffer, order, &result)
+
+	return result
+}
--- a/trunk/goutil/intAndBytesUtil/bytes_test.go
+++ b/trunk/goutil/intAndBytesUtil/bytes_test.go
@@ -0,0 +1,70 @@
+package intAndBytesUtil
+
+import (
+	"encoding/binary"
+	"testing"
+)
+
+func TestBytesToInt(t *testing.T) {
+	var givenBigEndian []byte = []byte{0, 0, 1, 0}
+	var givenLittleEndian []byte = []byte{0, 1, 0, 0}
+	var expectedInt int32 = 256
+
+	result := BytesToInt32(givenBigEndian, binary.BigEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenBigEndian, result, expectedInt)
+	}
+
+	result = BytesToInt32(givenLittleEndian, binary.LittleEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenLittleEndian, result, expectedInt)
+	}
+}
+
+func TestBytesToInt16(t *testing.T) {
+	var givenBigEndian []byte = []byte{1, 0}
+	var givenLittleEndian []byte = []byte{0, 1}
+	var expectedInt int16 = 256
+
+	result := BytesToInt16(givenBigEndian, binary.BigEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenBigEndian, result, expectedInt)
+	}
+
+	result = BytesToInt16(givenLittleEndian, binary.LittleEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenLittleEndian, result, expectedInt)
+	}
+}
+
+func TestBytesToInt32(t *testing.T) {
+	var givenBigEndian []byte = []byte{0, 0, 1, 0}
+	var givenLittleEndian []byte = []byte{0, 1, 0, 0}
+	var expectedInt int32 = 256
+
+	result := BytesToInt32(givenBigEndian, binary.BigEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenBigEndian, result, expectedInt)
+	}
+
+	result = BytesToInt32(givenLittleEndian, binary.LittleEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenLittleEndian, result, expectedInt)
+	}
+}
+
+func TestBytesToInt64(t *testing.T) {
+	var givenBigEndian []byte = []byte{0, 0, 0, 0, 0, 0, 1, 0}
+	var givenLittleEndian []byte = []byte{0, 1, 0, 0, 0, 0, 0, 0}
+	var expectedInt int64 = 256
+
+	result := BytesToInt64(givenBigEndian, binary.BigEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenBigEndian, result, expectedInt)
+	}
+
+	result = BytesToInt64(givenLittleEndian, binary.LittleEndian)
+	if result != expectedInt {
+		t.Errorf("BytesToInt(%v) failed.Got %v, expected %v", givenLittleEndian, result, expectedInt)
+	}
+}
--- a/trunk/goutil/intAndBytesUtil/doc.go
+++ b/trunk/goutil/intAndBytesUtil/doc.go
@@ -0,0 +1,4 @@
+/*
+提供int和[]Bytes互相转化的助手方法，其中需要注意的是在不同的平台上大、小端是不同的
+*/
+package intAndBytesUtil
--- a/trunk/goutil/intAndBytesUtil/int.go
+++ b/trunk/goutil/intAndBytesUtil/int.go
@@ -0,0 +1,50 @@
+package intAndBytesUtil
+
+import (
+	"bytes"
+	"encoding/binary"
+)
+
+// 整形转换成字节(无效，因为系统无法判断读取的字节数)
+// n：int型数字
+// order：大、小端的枚举
+// 返回值：对应的字节数组
+// func IntToBytes(n int, order binary.ByteOrder) []byte {
+// 	bytesBuffer := bytes.NewBuffer([]byte{})
+// 	binary.Write(bytesBuffer, order, n)
+
+// 	return bytesBuffer.Bytes()
+// }
+
+// 整形转换成字节
+// n：int16型数字
+// order：大、小端的枚举
+// 返回值：对应的字节数组
+func Int16ToBytes(n int16, order binary.ByteOrder) []byte {
+	bytesBuffer := bytes.NewBuffer([]byte{})
+	binary.Write(bytesBuffer, order, n)
+
+	return bytesBuffer.Bytes()
+}
+
+// 整形转换成字节
+// n：int32型数字
+// order：大、小端的枚举
+// 返回值：对应的字节数组
+func Int32ToBytes(n int32, order binary.ByteOrder) []byte {
+	bytesBuffer := bytes.NewBuffer([]byte{})
+	binary.Write(bytesBuffer, order, n)
+
+	return bytesBuffer.Bytes()
+}
+
+// 整形转换成字节
+// n：int64型数字
+// order：大、小端的枚举
+// 返回值：对应的字节数组
+func Int64ToBytes(n int64, order binary.ByteOrder) []byte {
+	bytesBuffer := bytes.NewBuffer([]byte{})
+	binary.Write(bytesBuffer, order, n)
+
+	return bytesBuffer.Bytes()
+}
--- a/trunk/goutil/intAndBytesUtil/int_test.go
+++ b/trunk/goutil/intAndBytesUtil/int_test.go
@@ -0,0 +1,68 @@
+package intAndBytesUtil
+
+import (
+	"encoding/binary"
+	"testing"
+)
+
+func TestInt16ToBytes(t *testing.T) {
+	var expectedBigEndian []byte = []byte{1, 0}
+	var expectedLittleEndian []byte = []byte{0, 1}
+	var givenInt int16 = 256
+
+	result := Int16ToBytes(givenInt, binary.BigEndian)
+	if equal(result, expectedBigEndian) == false {
+		t.Errorf("IntToBytes(%v) failed.Got %v, expected %v", givenInt, result, expectedBigEndian)
+	}
+
+	result = Int16ToBytes(givenInt, binary.LittleEndian)
+	if equal(result, expectedLittleEndian) == false {
+		t.Errorf("IntToBytes(%v) failed.Got %v, expected %v", givenInt, result, expectedLittleEndian)
+	}
+}
+
+func TestInt32ToBytes(t *testing.T) {
+	var expectedBigEndian []byte = []byte{0, 0, 1, 0}
+	var expectedLittleEndian []byte = []byte{0, 1, 0, 0}
+	var givenInt int32 = 256
+
+	result := Int32ToBytes(givenInt, binary.BigEndian)
+	if equal(result, expectedBigEndian) == false {
+		t.Errorf("IntToBytes(%v) failed.Got %v, expected %v", givenInt, result, expectedBigEndian)
+	}
+
+	result = Int32ToBytes(givenInt, binary.LittleEndian)
+	if equal(result, expectedLittleEndian) == false {
+		t.Errorf("IntToBytes(%v) failed.Got %v, expected %v", givenInt, result, expectedLittleEndian)
+	}
+}
+
+func TestInt64ToBytes(t *testing.T) {
+	var expectedBigEndian []byte = []byte{0, 0, 0, 0, 0, 0, 1, 0}
+	var expectedLittleEndian []byte = []byte{0, 1, 0, 0, 0, 0, 0, 0}
+	var givenInt int64 = 256
+
+	result := Int64ToBytes(givenInt, binary.BigEndian)
+	if equal(result, expectedBigEndian) == false {
+		t.Errorf("IntToBytes(%v) failed.Got %v, expected %v", givenInt, result, expectedBigEndian)
+	}
+
+	result = Int64ToBytes(givenInt, binary.LittleEndian)
+	if equal(result, expectedLittleEndian) == false {
+		t.Errorf("IntToBytes(%v) failed.Got %v, expected %v", givenInt, result, expectedLittleEndian)
+	}
+}
+
+func equal(b1, b2 []byte) bool {
+	if len(b1) != len(b2) {
+		return false
+	}
+
+	for i := 0; i < len(b1); i++ {
+		if b1[i] != b2[i] {
+			return false
+		}
+	}
+
+	return true
+}