Home Java javaTutorial Convert Java String strings and Unicode characters to and from each other

Convert Java String strings and Unicode characters to and from each other

Jan 22, 2017 am 11:05 AM

java环境安装后jdk的bin目录有个native2ascii.exe可以实现类似的功能,但是通过java代码也可以实现同样的功能。

字符串转换unicode java方法代码片段:

/**
 * 字符串转换unicode
 */
public static String string2Unicode(String string) {
 
    StringBuffer unicode = new StringBuffer();
 
    for (int i = 0; i < string.length(); i++) {
 
        // 取出每一个字符
        char c = string.charAt(i);
 
        // 转换为unicode
        unicode.append("\\u" + Integer.toHexString(c));
    }
 
    return unicode.toString();
}
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unicode转换字符串java方法代码片段:

/**
 * unicode 转字符串
 */
public static String unicode2String(String unicode) {
 
    StringBuffer string = new StringBuffer();
 
    String[] hex = unicode.split("\\\\u");
 
    for (int i = 1; i < hex.length; i++) {
 
        // 转换出每一个代码点
        int data = Integer.parseInt(hex[i], 16);
 
        // 追加成string
        string.append((char) data);
    }
 
    return string.toString();
}
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测试java代码片段:

public static void main(String[] args) {
    String test = "最代码网站地址:www.zuidaima.com";
 
    String unicode = string2Unicode(test);
     
    String string = unicode2String(unicode) ;
     
    System.out.println(unicode);
     
    System.out.println(string);
 
}
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输出结果:

\u6700\u4ee3\u7801\u7f51\u7ad9\u5730\u5740\u3a\u77\u77\u77\u2e\u7a\u75\u69\u64\u61\u69\u6d\u61\u2e\u63\u6f\u6d

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