java UCS2编、解码

最新推荐文章于 2021-03-13 21:32:41 发布

liujunliang1210

最新推荐文章于 2021-03-13 21:32:41 发布

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文章标签： java

本文链接：https://blog.youkuaiyun.com/liujunliang1210/article/details/83967701

本文详细介绍了UCS2到UTF-16BE和UTF-16BE到UCS2的编码转换算法实现，包括源码解析及应用案例。

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/**
* UCS2解码
* @param src UCS2 源串
* @return 解码后的UTF-16BE字符串
* @throws Exception
*/
public static String DecodeUCS2(String src) throws Exception
{
byte[] bytes = new byte[src.length() / 2];
for (int i = 0; i < src.length(); i += 2)
{
bytes[i / 2] = (byte) (Integer.parseInt(src.substring(i, i + 2), 16));
}
String reValue;
try
{
reValue = new String(bytes, "UTF-16BE");
}
catch (UnsupportedEncodingException e)
{
throw new Exception(e);
}
return reValue;

}

/**
* UCS2编码
* @param src UTF-16BE编码的源串
* @return 编码后的UCS2串
* @throws Exception
*/
public static String EncodeUCS2(String src) throws Exception
{

byte[] bytes;
try
{
bytes = src.getBytes("UTF-16BE");
}
catch (UnsupportedEncodingException e)
{
throw new Exception(e);
}

StringBuffer reValue = new StringBuffer();
StringBuffer tem = new StringBuffer();
for (int i = 0; i < bytes.length; i++)
{
tem.delete(0, tem.length());
tem.append(Integer.toHexString(bytes[i] & 0xFF));
if (tem.length() == 1)
{
tem.insert(0, '0');
}
reValue.append(tem);
}
return reValue.toString().toUpperCase();
}