From b27d0ba5ab7a11ac6615e0cfee3cf428a7ae834f Mon Sep 17 00:00:00 2001
From: liurunyu <lry9898@163.com>
Date: 星期三, 29 五月 2024 08:56:34 +0800
Subject: [PATCH] 完善代码
---
pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/ByteUtil.java | 126 ++++++++++++++++-------------------------
1 files changed, 49 insertions(+), 77 deletions(-)
diff --git a/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/ByteUtil.java b/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/ByteUtil.java
index 31a6248..f2e5c50 100644
--- a/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/ByteUtil.java
+++ b/pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/util/ByteUtil.java
@@ -33,9 +33,8 @@
* @param index 涓嬫爣浣�
* @param len 闀垮害
* @return 杩斿洖 杩斿洖
- * @throws Exception 寮傚父
*/
- public static boolean bytesIsAll0xFF(byte[] bs, int index, int len)throws Exception {
+ public static boolean bytesIsAll0xFF(byte[] bs, int index, int len){
int count = 0 ;
for(int i = index; i < index + len; i++){
if(bs[i] == (byte)0xFF){
@@ -47,26 +46,11 @@
/**
* 浜岃繘鍒惰浆鍗佽繘鍒舵暟
- * @param str
+ * @param str 浜岃繘鍒跺瓧绗︿覆
* @return 杩斿洖
- * @throws Exception 寮傚父
*/
- public static int binary2Int(String str) throws Exception {
- int cnt=0;
- int sum=0;
- str=new StringBuilder(str).reverse().toString();//鍙嶈浆瀛楃涓�
- for(int i=0;i<str.length();i++){
- cnt++;
- if (str.charAt(i)=='1'){
- int mul=1;
- for (int j=1;j<cnt;j++){
- mul*=2;
- }
- sum+=mul;
- }
- else continue;
- }
- return sum;
+ public static int binary2Int(String str) {
+ return Integer.parseInt(str, 2);
}
@@ -74,26 +58,18 @@
* 瀛楄妭杞瓨浜岃繘鍒�
*
* @param b byte
- * @throws Exception 寮傚父
* @return 杩斿洖 String
*/
- public static String byte2Binary(byte b) throws Exception {
- int n = (b + 256) % 256 + 256;
- try {
- return Integer.toBinaryString(n).substring(1);
- } catch (Exception e) {
- throw new Exception("瀛楄妭杞崲鎴愪簩杩涘埗鐨勫瓧绗︿覆鍑洪敊锛�", null);
- }
+ public static String byte2Binary(byte b) {
+ return Integer.toBinaryString(b & 0xFF) ;
}
/**
* 瀛楄妭杞瓨8浣嶄簩杩涘埗
*
- * @param b
- * byte
- * @throws Exception 寮傚父
+ * @param b byte
* @return 杩斿洖 String
*/
- public static String byte2bit8Binary(byte b) throws Exception {
+ public static String byte2bit8Binary(byte b) {
String s = byte2Binary(b);
int len = s.length();
for (int i = 0; i < 8 - len; i++) {
@@ -103,13 +79,11 @@
}
/**
- * 瀛楄妭鍙朾it
- * @param b
- * @param b
- * @throws Exception 寮傚父
+ * 瀛楄妭鏁� 鍙栧嚭8涓猙it
+ * @param b 瀛楄妭鏁�
* @return 杩斿洖 String
*/
- public static byte[] getBit(byte b) throws Exception {
+ public static byte[] getBit(byte b) {
byte[] bs = new byte[8] ;
bs[0] = (byte)(b & 1) ;
bs[1] = (byte)((b & 2) >> 1) ;
@@ -123,8 +97,8 @@
}
/**
- * 瀛楄妭鍙朾it
- * @param b
+ * 瀛楄妭鏁� 鍙栧嚭bit
+ * @param b 瀛楄妭鏁�
* @param index 涓嬫爣浣�
* @throws Exception 寮傚父
* @return 杩斿洖 String
@@ -178,8 +152,7 @@
public static void double2Bytes_BE(byte[] bs, double value, int from)throws Exception {
boolean b = isOutOfArrLength(bs.length, (from - 1) + 8);
if (b) {
- Long l = Double.doubleToLongBits(value);
- long2Bytes_BE(bs, l, from);
+ long2Bytes_BE(bs, Double.doubleToLongBits(value), from);
} else {
throw new Exception("double2Bytes鏃舵暟缁勮秺鐣�");
}
@@ -195,8 +168,7 @@
public static void double2Bytes_LE(byte[] bs, double value, int from)throws Exception {
boolean b = isOutOfArrLength(bs.length, (from - 1) + 8);
if (b) {
- Long l = Double.doubleToLongBits(value);
- long2Bytes_LE(bs, l, from);
+ long2Bytes_LE(bs, Double.doubleToLongBits(value), from);
} else {
throw new Exception("double2Bytes鏃舵暟缁勮秺鐣�");
}
@@ -338,7 +310,7 @@
long l = 0;
long[] ls = new long[len] ;
for(int i = 0 ; i < len; i++){
- ls[i] = bs[i] ;
+ ls[i] = bs[i] & 0xFF ;
}
for(int i = len-1 ; i >= 0; i--){
ls[(len - 1) - i] <<= 8 * i ;
@@ -362,14 +334,14 @@
boolean b = isOutOfArrLength(bs.length, (from - 1) + 8);
if (b) {
long s = 0;
- long s0 = bs[from + 0] ;// 鏈�浣庝綅
- long s1 = bs[from + 1] ;
- long s2 = bs[from + 2] ;
- long s3 = bs[from + 3] ;
- long s4 = bs[from + 4] ;
- long s5 = bs[from + 5] ;
- long s6 = bs[from + 6] ;
- long s7 = bs[from + 7] ;
+ long s0 = bs[from + 0] & 0xFF ;// 鏈�浣庝綅
+ long s1 = bs[from + 1] & 0xFF ;
+ long s2 = bs[from + 2] & 0xFF ;
+ long s3 = bs[from + 3] & 0xFF ;
+ long s4 = bs[from + 4] & 0xFF ;
+ long s5 = bs[from + 5] & 0xFF ;
+ long s6 = bs[from + 6] & 0xFF ;
+ long s7 = bs[from + 7] & 0xFF ;
// s7涓嶅彉
s6 <<= 8;
@@ -399,7 +371,7 @@
short len = (short)(end - from + 1) ;
long[] ls = new long[len] ;
for(short i = 0 ; i < len; i++){
- ls[i] = bs[from + i] ;
+ ls[i] = bs[from + i] & 0xFF ;
}
for(short i = (short)(len-1) ; i >= 0; i--){
ls[i] <<= 8 * (len - (i + 1)) ;
@@ -428,7 +400,7 @@
long l = 0;
long[] ls = new long[len] ;
for(int i = 0 ; i < len; i++){
- ls[i] = bs[i] ;
+ ls[i] = bs[i] & 0xFF ;
}
for(int i = 0 ; i < len; i++){
ls[(len - 1) - i] <<= 8 * i ;
@@ -452,14 +424,14 @@
boolean b = isOutOfArrLength(bs.length, (from - 1) + 8);
if (b) {
long s = 0;
- long s0 = bs[from + 0] ;// 鏈�浣庝綅
- long s1 = bs[from + 1] ;
- long s2 = bs[from + 2] ;
- long s3 = bs[from + 3] ;
- long s4 = bs[from + 4] ;
- long s5 = bs[from + 5] ;
- long s6 = bs[from + 6] ;
- long s7 = bs[from + 7] ;
+ long s0 = bs[from] & 0xFF ;// 鏈�浣庝綅
+ long s1 = bs[from + 1] & 0xFF ;
+ long s2 = bs[from + 2] & 0xFF ;
+ long s3 = bs[from + 3] & 0xFF ;
+ long s4 = bs[from + 4] & 0xFF ;
+ long s5 = bs[from + 5] & 0xFF ;
+ long s6 = bs[from + 6] & 0xFF ;
+ long s7 = bs[from + 7] & 0xFF ;
// s0涓嶅彉
s1 <<= 8;
@@ -490,7 +462,7 @@
short len = (short)(end - from + 1) ;
long[] ls = new long[len] ;
for(short i = 0 ; i < len; i++){
- ls[i] = bs[from + i] ;
+ ls[i] = bs[from + i] & 0xFF ;
}
for(short i = 0 ; i < len; i++){
ls[i] <<= 8 * i ;
@@ -559,10 +531,10 @@
boolean b = isOutOfArrLength(bs.length, (from - 1) + 4);
if (b) {
int s = 0;
- int s0 = bs[from + 0] ;// 鏈�浣庝綅
- int s1 = bs[from + 1] ;
- int s2 = bs[from + 2] ;
- int s3 = bs[from + 3] ;
+ int s0 = bs[from + 0] & 0xFF ;// 鏈�浣庝綅
+ int s1 = bs[from + 1] & 0xFF ;
+ int s2 = bs[from + 2] & 0xFF ;
+ int s3 = bs[from + 3] & 0xFF ;
// s3涓嶅彉
s2 <<= 8;
@@ -586,10 +558,10 @@
boolean b = isOutOfArrLength(bs.length, (from - 1) + 4);
if (b) {
int s = 0;
- int s0 = bs[from + 0] ;// 鏈�浣庝綅
- int s1 = bs[from + 1] ;
- int s2 = bs[from + 2] ;
- int s3 = bs[from + 3] ;
+ int s0 = bs[from + 0] & 0xFF ;// 鏈�浣庝綅
+ int s1 = bs[from + 1] & 0xFF ;
+ int s2 = bs[from + 2] & 0xFF ;
+ int s3 = bs[from + 3] & 0xFF ;
// s0涓嶅彉
s1 <<= 8;
@@ -682,8 +654,8 @@
boolean b = isOutOfArrLength(bs.length, (from - 1) + 2);
if (b) {
int s = 0;
- int s0 = bs[from + 0] ;
- int s1 = bs[from + 1] ;
+ int s0 = bs[from + 0] & 0xFF ;
+ int s1 = bs[from + 1] & 0xFF ;
// s1涓嶅彉
s0 <<= 8;
@@ -705,8 +677,8 @@
boolean b = isOutOfArrLength(bs.length, (from - 1) + 2);
if (b) {
int s = 0;
- int s0 = bs[from + 0] ;
- int s1 = bs[from + 1] ;
+ int s0 = bs[from + 0] & 0xFF ;
+ int s1 = bs[from + 1] & 0xFF ;
// s0涓嶅彉
s1 <<= 8;
@@ -1223,7 +1195,7 @@
}
/**
- * 澶х妯″紡銆婃暟鎹綆浣嶅湪鏁扮粍楂樺瓧鑺傘��
+ * 灏忕妯″紡銆婃暟鎹綆浣嶅湪鏁扮粍楂樺瓧鑺傘��
* 瀛楃涓茶浆鎹㈡垚byte鏁扮粍
* @value bs byte[]
* @value str String
@@ -1501,5 +1473,5 @@
System.out.println(v);
}
*/
-
+
}
--
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