/**
* byte[]转16进制字符串
* @param b
* @return
*/
public static String bytes_String16(byte[] b) {
StringBuilder sb = new StringBuilder();
for(int i=0;i<b.length;i++) {
sb.append(String.format(“%02x”, b[i]));
}
return sb.toString();
}
/**
* 十进制转16进制
* @param n
* @return
*/
private static String intToHex(int n) {
StringBuilder sb = new StringBuilder(8);
String a;
char []b = {‘0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9′,’A’,’B’,’C’,’D’,’E’,’F’};
if(n==0){
return “00”;
}
while(n != 0){
if(n<0){
n= 256 +n;
}
sb = sb.append(b[n%16]);
n = n/16;
}
a = sb.reverse().toString();
if(a.length() == 1){
a= “0”+a;
}
return a;
}
/**
* 16进制字符转byte数组
* @param str
* @return
*/
public static byte[] hexStrToByteArray(String str)
{
if (str == null) {
return null;
}
if (str.length() == 0) {
return new byte[0];
}
byte[] byteArray = new byte[str.length() / 2];
for (int i = 0; i < byteArray.length; i++){
String subStr = str.substring(2 * i, 2 * i + 2);
byteArray[i] = ((byte)Integer.parseInt(subStr, 16));
}
return byteArray;
}
/**
* 获取开始下标到结束下标的16进制的值
* @param start
* @param end
* @param params
* @return
*/
public static String getStartToEndForHex(int start,int end,byte[] params){
String result = “”;
for(int i=start;i<=end;i++){
if(i==end){
result = result+intToHex(params[i]);
}else{
result = result+intToHex(params[i])+”:”;
}
}
return result;
}
/**
* 获取开始下标到结束下标的10进制的值
* @param start
* @param end
* @param params
* @return
*/
public static String getStartToEndForInt(int start,int end,byte[] params){
String result = “”;
for(int i=start;i<=end;i++){
int temp = params[i];
if(temp < 0){
temp = 256 + temp;
}
if(i==end){
result = result+temp;
}else{
result = result+temp+”:”;
}
}
return result;
}
/**
* 获取低位到高位的移位＋或运算的值
* @param indexLow
* @param indexHigh
* @param params
* @return
*/
public static String getLowConactHighEndForInt(int indexLow,int indexHigh,byte[] params){
String result = “”;
int tempResult = 0;
for(int i = indexLow;i<=indexHigh;i++){
int temp = (params[i] < 0 ? 256 + params[i] : params[i]);
int tempmov = (indexHigh-i)+2;
tempmov = (i == indexHigh ? 0 : (int) Math.pow(2, tempmov));
tempResult = (temp << tempmov) | tempResult;
}
return result+tempResult;
}