/** * native2ascii.exe Java code implementation. * * @author * @version 1.0 */ public class Native2AsciiUtils {
/** * prefix of ascii string of native character */ private static String PREFIX = "\\u";
/** * Native to ascii string. It's same as execut native2ascii.exe. * * @param str * native string * @return ascii string */ public static String native2Ascii(String str) { char[] chars = str.toCharArray(); StringBuilder sb = new StringBuilder(); for (int i = 0; i < chars.length; i++) { sb.append(char2Ascii(chars[i])); } return sb.toString(); }
/** * Native character to ascii string. * * @param c * native character * @return ascii string */ private static String char2Ascii(char c) { if (c > 255) { StringBuilder sb = new StringBuilder(); sb.append(PREFIX); int code = (c >> 8); String tmp = Integer.toHexString(code); if (tmp.length() == 1) { sb.append("0"); } sb.append(tmp); code = (c & 0xFF); tmp = Integer.toHexString(code); if (tmp.length() == 1) { sb.append("0"); } sb.append(tmp); return sb.toString(); } else { return Character.toString(c); } }
/** * Ascii to native string. It's same as execut native2ascii.exe -reverse. * * @param str * ascii string * @return native string */ public static String ascii2Native(String str) { StringBuilder sb = new StringBuilder(); int begin = 0; int index = str.indexOf(PREFIX); while (index != -1) { sb.append(str.substring(begin, index)); sb.append(ascii2Char(str.substring(index, index + 6))); begin = index + 6; index = str.indexOf(PREFIX, begin); } sb.append(str.substring(begin)); return sb.toString(); }
/** * Ascii to native character. * * @param str * ascii string * @return native character */ private static char ascii2Char(String str) { if (str.length() != 6) { throw new IllegalArgumentException( "Ascii string of a native character must be 6 character."); } if (!PREFIX.equals(str.substring(0, 2))) { throw new IllegalArgumentException( "Ascii string of a native character must start with \"\\u\"."); } String tmp = str.substring(2, 4); int code = Integer.parseInt(tmp, 16) << 8; tmp = str.substring(4, 6); code += Integer.parseInt(tmp, 16); return (char) code; } public static void main(String args[]){
package util;
/**
* native2ascii.exe Java code implementation.
*
* @author
* @version 1.0
*/
public class Native2AsciiUtils {
/**
* prefix of ascii string of native character
*/
private static String PREFIX = "\\u";
/**
* Native to ascii string. It's same as execut native2ascii.exe.
*
* @param str
* native string
* @return ascii string
*/
public static String native2Ascii(String str) {
char[] chars = str.toCharArray();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < chars.length; i++) {
sb.append(char2Ascii(chars[i]));
}
return sb.toString();
}
/**
* Native character to ascii string.
*
* @param c
* native character
* @return ascii string
*/
private static String char2Ascii(char c) {
if (c > 255) {
StringBuilder sb = new StringBuilder();
sb.append(PREFIX);
int code = (c >> 8);
String tmp = Integer.toHexString(code);
if (tmp.length() == 1) {
sb.append("0");
}
sb.append(tmp);
code = (c & 0xFF);
tmp = Integer.toHexString(code);
if (tmp.length() == 1) {
sb.append("0");
}
sb.append(tmp);
return sb.toString();
} else {
return Character.toString(c);
}
}
/**
* Ascii to native string. It's same as execut native2ascii.exe -reverse.
*
* @param str
* ascii string
* @return native string
*/
public static String ascii2Native(String str) {
StringBuilder sb = new StringBuilder();
int begin = 0;
int index = str.indexOf(PREFIX);
while (index != -1) {
sb.append(str.substring(begin, index));
sb.append(ascii2Char(str.substring(index, index + 6)));
begin = index + 6;
index = str.indexOf(PREFIX, begin);
}
sb.append(str.substring(begin));
return sb.toString();
}
/**
* Ascii to native character.
*
* @param str
* ascii string
* @return native character
*/
private static char ascii2Char(String str) {
if (str.length() != 6) {
throw new IllegalArgumentException(
"Ascii string of a native character must be 6 character.");
}
if (!PREFIX.equals(str.substring(0, 2))) {
throw new IllegalArgumentException(
"Ascii string of a native character must start with \"\\u\".");
}
String tmp = str.substring(2, 4);
int code = Integer.parseInt(tmp, 16) << 8;
tmp = str.substring(4, 6);
code += Integer.parseInt(tmp, 16);
return (char) code;
} public static void main(String args[]){
System.out.println(ascii2Native("\u5f88\u591a\u9ad8\u79d1\u6280\uff1f "));
}
} 结果
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BufferedWriter bw=nwq BufferedWriter(new OutputStreamWriter(new FileOutputStream("文件名"),"UTF-8"));
bw.write("\u5f88\u591a\u9ad8\u79d1\u6280\uff1f",0,6);