How to convert UTF16 (emoji) to HTML Entity (hex) using java
I have the string from DB like this "\uD83D\uDE02".
I try to display this unicode emoji, it displays as ��.
I search in google to convert UTF16 to Html hex code. But i didnt get any solution. Please help me
我将把这个unicode显示给Emoji smily icon
答案 0 :(得分:3)
您可以使用emoji4j库。
例如:
String line = "Hi , i am fine \uD83D\uDE02 \uD83D\uDE02, how r u ?";
EmojiUtils.hexHtmlify(line); //Hi , i am fine 😂 😂, how r u ?
答案 1 :(得分:2)
虽然字符串似乎包含两个Unicode字符,但它已经是一个用UTF-16编码的字符,这就是Java字符串的工作方式。您可以使用String.codePointAt
方法确定实际的UTF-16解码字符代码。这里的字符代码是0x1F602,它是Unicode 'FACE WITH TEARS OF JOY':
将字符写入HTML:
选项1:生成HTML转义实体
String str="\uD83D\uDE02";
FileWriter w=new FileWriter("c:\\temp\\emoji.html");
w.write("<html><body>");
w.write("&#x"+Long.toHexString(str.codePointAt(0))+";");
w.write("</body></html>");
w.close();
这会产生
<html><body>😂</body></html>
选项2:使用一些支持Unicode的HTML编码,例如UTF-8
String str="\uD83D\uDE02";
OutputStreamWriter w=new OutputStreamWriter(new FileOutputStream("c:\\temp\\emoji.html"),"UTF-8");
w.write("<html>\n<head><meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\"></head>\n<body>");
w.write(str);
w.write("</body></html>");
w.close();
这会产生
<html>
<head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head>
<body>рџ‚</body></html>
这是用UTF-8编码的同一张快乐脸。