java 中文和Unicode码 互相转换

LZ很想像其他大牛一样，书写自己的博客，但是怎奈何才疏学浅，始终没有建立自己的篇幅文章，LZ也是个有梦想的人，那么就让原创的梦想在此起航吧。

中文和Unicode码 互相转换

package test.com.gjob.services;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

public class Test {
public static void main(String[] args) throws UnsupportedEncodingException {
String s1 = "成重公a尺621?!2@#$^*^&)sd sdfhd";
String s2 = "俺估2计是60";
String s3 = "俺阿3斯达10";
List<String> list = new ArrayList<String>();
list.add(s1);
list.add(s2);
list.add(s3);
// [成重公a尺621?!2@#$^*^&)sd sdfhd, 俺估2计是60, 俺阿3斯达10]
System.out.println(list.toString());
//中文转Unicode
String chinaToUnicode = Test.chinaToUnicode(list.toString());
//[\u6210\u91cd\u516ca\u5c3a621?!2@#$^*^&)sd sdfhd, \u4ffa\u4f302\u8ba1\u662f60, \u4ffa\u963f3\u65af\u8fbe10]
System.out.println(chinaToUnicode);

//[成重公a尺621?!2@#$^*^&)sd sdfhd, 俺估2计是60, 俺阿3斯达10]
System.out.println(Test.unicode2String(chinaToUnicode));

}

/**
* 把中文转成Unicode码
*
* @param str
* @return
*/
public static String chinaToUnicode(String str) {
String result = "";
for (int i = 0; i < str.length(); i++) {
int chr1 = (char) str.charAt(i);
if (chr1 >= 19968 && chr1 <= 171941) {// 汉字范围 \u4e00-\u9fa5 (中文)
result += "\\u" + Integer.toHexString(chr1);
} else {
result += str.charAt(i);
}
}
return result;
}

/**
* 判断是否为中文字符
*
* @param c
* @return
*/
public static boolean isChinese(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
return true;
}
return false;
}

/**
* unicode 转 中文
*/
public static String unicode2String(String unicode) {

StringBuffer string = new StringBuffer();

String[] hex = unicode.split("\\\\u");

for (int i = 0; i < hex.length; i++) {

try {
// 汉字范围 \u4e00-\u9fa5 (中文)
if(hex[i].length()>=4){//取前四个，判断是否是汉字
String chinese = hex[i].substring(0, 4);
try {
int chr = Integer.parseInt(chinese, 16);
boolean isChinese = Test.isChinese((char) chr);
//转化成功，判断是否在 汉字范围内
if (isChinese){//在汉字范围内
// 追加成string
string.append((char) chr);
//并且追加 后面的字符
String behindString = hex[i].substring(4);
string.append(behindString);
}else {
string.append(hex[i]);
}
} catch (NumberFormatException e1) {
string.append(hex[i]);
}

}else{
string.append(hex[i]);
}
} catch (NumberFormatException e) {
string.append(hex[i]);
}
}

return string.toString();
}
}