Java字符串编码为UTF-8
[英]Java String Encoding to UTF-8
问题描述
I have some HTML code that I store in a Java.lang.String variable. 
我有一些HTML代码，我存储在Java.lang.String变量中。 I write that variable to a file and set the encoding to UTF-8 when writing the contents of the string variable to the file on the filesystem. 我将该变量写入文件，并在将字符串变量的内容写入文件系统上的文件时将编码设置为UTF-8。 I open up that file and everything looks great eg → shows up as a right arrow. 我打开那个文件，一切看起来很棒，例如→显示为右箭头。
However, if the same String (containing the same content) is used by a jsp page to render content in a browser, characters such as → show up as a question mark (?) 但是，如果jsp页面使用相同的String（包含相同的内容）来在浏览器中呈现内容，则诸如→之类的字符将显示为问号（？）
When storing content in the String variable, I make sure that I use: 在String变量中存储内容时，我确保使用：
String myStr = new String(bytes[], charset)
instead of just: 而不只是：
String myStr = "<html><head/><body>→</body></html>";
Can someone please tell me why the String content gets written to the filesystem perfectly but does not render in the jsp/browser? 有人可以告诉我为什么String内容完美地写入文件系统但不在jsp /浏览器中呈现？
Thanks. 谢谢。
3 个解决方案
解决方案1
4 2009-11-16 23:17:36
but does not render in the jsp/browser?
You need to set the response encoding as well. 您还需要设置响应编码。 In a JSP you can do this using 在JSP中，您可以使用
<%@ page pageEncoding="UTF-8" %>
This has actually the same effect as setting the following meta tag in HTML <head> : 这实际上与在HTML <head>设置以下元标记的效果相同：
<meta http-equiv="content-type" content="text/html; charset=utf-8">
解决方案2
1 2009-11-16 23:23:07
Possibilities: 可能性：
- The browser does not support UTF-8 浏览器不支持UTF-8
- You don't have
Content-Type: text/html; charset=utf-8你没有Content-Type: text/html; charset=utf-8Content-Type: text/html; charset=utf-8in your HTTP Headers.您的HTTP标头中的Content-Type: text/html; charset=utf-8。
解决方案3
0 2009-11-17 08:30:28
The lazy developer (=me) uses Apache Common Lang StringEscapeUtils.escapeHtml http://commons.apache.org/lang/api-release/org/apache/commons/lang/StringEscapeUtils.html#escapeHtml(java.lang.String) which will help you handle all 'odd' characters. 懒惰的开发人员（= me）使用Apache Common Lang StringEscapeUtils.escapeHtml http://commons.apache.org/lang/api-release/org/apache/commons/lang/StringEscapeUtils.html#escapeHtml(java.lang.String）这将帮助您处理所有'奇怪'字符。 Let the browser do the final translation of the html entities. 让浏览器对html实体进行最终翻译。
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