import java.io.UnsupportedEncodingException;
/**
* 判断字符编码
*
* @author guyinyihun
*/
public class CharacterCodingUtil {
private final static String ENCODE = "GBK";
/**
* 判断是否为ISO-8859-1
*
* @return
*/
public static boolean checkISO(String str) {
boolean flag = java.nio.charset.Charset.forName("ISO-8859-1").newEncoder().canEncode(str);
return flag;
}
/**
* 判断是否为UTF-8
*
* @return
*/
public static boolean checkUTF(String str) {
boolean flag = java.nio.charset.Charset.forName("UTF-8").newEncoder().canEncode(str);
return flag;
}
public static boolean checkUnicode(String str) {
boolean flag = java.nio.charset.Charset.forName("unicode").newEncoder().canEncode(str);
return flag;
}
/**
*
* Title: getEncoding
*
*
* Description: 判断字符编码
*
*
* @param str
* @return
*/
public static String getEncoding(String str) {
String encode = "unicode";
try {
if (str.equals(new String(str.getBytes(encode), encode))) {
String s = encode;
return s;
}
} catch (Exception exception) {
}
encode = "ISO-8859-1";
try {
if (str.equals(new String(str.getBytes(encode), encode))) {
String s1 = encode;
return s1;
}
} catch (Exception exception1) {
}
encode = "UTF-8";
try {
if (str.equals(new String(str.getBytes(encode), encode))) {
String s2 = encode;
return s2;
}
} catch (Exception exception2) {
}
encode = "GBK";
try {
if (str.equals(new String(str.getBytes(encode), encode))) {
String s3 = encode;
return s3;
}
} catch (Exception exception3) {
}
return "";
}
/**
*
* Title: isoToutf8
*
*
* Description: ISO-8859-1 编码 转 UTF-8
*
*
* @param str
* @return
*/
public static String isoToutf8(String str) {
try {
return new String(str.getBytes("ISO-8859-1"), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return str;
}
}
/**
*
* Title: utf8Toiso
*
*
* Description: UTF-8 编码 转 ISO-8859-1
*
*
* @param str
* @return
*/
public static String utf8Toiso(String str) {
try {
return new String(str.getBytes("utf-8"), "iso-8859-1");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return str;
}
}
/**
*
Title: unicodeToCn
*
Description: unicode 转 中文
*
* @param unicode
* @return
*/
public static String unicodeToCn(String unicode) {
/** 以 \ u 分割，因为java注释也能识别unicode，因此中间加了一个空格 */
String[] strs = unicode.split("\\\\u");
String returnStr = "";
// 由于unicode字符串以 \ u 开头，因此分割出的第一个字符是""。
for (int i = 1; i < strs.length; i++) {
returnStr += (char) Integer.valueOf(strs[i], 16).intValue();
}
return returnStr;
}
/**
*
Title: cnToUnicode
*
Description: 中文转 unicode
*
* @param cn
* @return
*/
public static String cnToUnicode(String cn) {
char[] chars = cn.toCharArray();
String returnStr = "";
for (int i = 0; i < chars.length; i++) {
returnStr += "\\u" + Integer.toString(chars[i], 16);
}
return returnStr;
}
/**
* URL 解码
*
* @return String
* @author lifq
* @date 2015-3-17 下午04:09:51
*/
public static String getURLDecoderString(String str) {
String result = "";
if (null == str) {
return "";
}
try {
result = java.net.URLDecoder.decode(str, ENCODE);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return result;
}
/**
* URL 转码
*
* @return String
* @author lifq
* @date 2015-3-17 下午04:10:28
*/
public static String getURLEncoderString(String str) {
String result = "";
if (null == str) {
return "";
}
try {
result = java.net.URLEncoder.encode(str, ENCODE);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return result;
}
}
