CharsetKit.java
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package com.huaheng.common.support;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import com.huaheng.common.utils.StringUtils;
/**
* 字符集工具类
*
* @author huaheng
*
*/
public class CharsetKit
{
/** ISO-8859-1 */
public static final String ISO_8859_1 = "ISO-8859-1";
/** UTF-8 */
public static final String UTF_8 = "UTF-8";
/** GBK */
public static final String GBK = "GBK";
/** ISO-8859-1 */
public static final Charset CHARSET_ISO_8859_1 = Charset.forName(ISO_8859_1);
/** UTF-8 */
public static final Charset CHARSET_UTF_8 = Charset.forName(UTF_8);
/** GBK */
public static final Charset CHARSET_GBK = Charset.forName(GBK);
/**
* 转换为Charset对象
*
* @param charset 字符集，为空则返回默认字符集
* @return Charset
*/
public static Charset charset(String charset)
{
return StringUtils.isEmpty(charset) ? Charset.defaultCharset() : Charset.forName(charset);
}
/**
* 转换字符串的字符集编码
*
* @param source 字符串
* @param srcCharset 源字符集，默认ISO-8859-1
* @param destCharset 目标字符集，默认UTF-8
* @return 转换后的字符集
*/
public static String convert(String source, String srcCharset, String destCharset)
{
return convert(source, Charset.forName(srcCharset), Charset.forName(destCharset));
}
/**
* 转换字符串的字符集编码
*
* @param source 字符串
* @param srcCharset 源字符集，默认ISO-8859-1
* @param destCharset 目标字符集，默认UTF-8
* @return 转换后的字符集
*/
public static String convert(String source, Charset srcCharset, Charset destCharset)
{
if (null == srcCharset)
{
srcCharset = StandardCharsets.ISO_8859_1;
}
if (null == destCharset)
{
srcCharset = StandardCharsets.UTF_8;
}
if (StringUtils.isEmpty(source) || srcCharset.equals(destCharset))
{
return source;
}
return new String(source.getBytes(srcCharset), destCharset);
}
/**
* @return 系统字符集编码
*/
public static String systemCharset()
{
return Charset.defaultCharset().name();
}
}