blocks|key|3595844|text|您正在尝试将ISO8859-1更改为utf-8。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3595845|如果在struts中出现上述问题，请在java.jsp页面上使用以下代码|3595846|<%25@+page+language="java"+contentType="text/html;+charset=utf-8"
pageEncoding="utf-8"%25>|code-block|syntax|javascript|3595847|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

you are try to change the ISO8859-1 into utf-8.

if above issue in struts use this code on your java.jsp page

<pre><code>&lt;%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%&gt;
</code></pre>

blocks|key|5710178|text|尝试更改您的浏览器区域设置。你可以用Firefox做到这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5710179|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Try changing your browser locale. You can do it with Firefox.

blocks|key|5710191|text|就Unicode编码而言，服务器对浏览器的响应字符似乎未正确指定。如果你使用的是Tomcat，这里有一个fairly+detailed+SO+question+on+this+topic。请注意，您必须使用UTF-8，而不是ISO-拉丁语-1/ISO-8859-1，因为日语字符不属于拉丁语-1字符编码。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|5710192|除了有关Unicode编码的指针之外，您可能还需要检查以下几点：|5710193|5710194|数据库中的数据是否按您希望的方式存储？您可以使用像Oracle+SQL+Developer这样的工具(默认情况下它支持Unicode；我不确定日文字体，但您可以切换到日文字体)来查看数据库表的内容。|unordered-list-item|5710195|您是否为应用程序服务器JVM设置了正确的编码？|5710196|您正在使用为浏览器安装的日语字体和日语语言环境查看页面吗？|5710197|5710198|如果您已经排除了上述所有问题，那么Unicode字符(包括日语)将被转换为无法理解的格式。|5710199|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps^0|1G|15|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|13|8|@]|9|@]|C|$]]|$1|G|3|H|5|I|7|14|8|@]|9|@]|C|$]]|$1|J|3|K|5|I|7|15|8|@]|9|@]|C|$]]|$1|L|3|M|5|I|7|16|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|17|8|@]|9|@]|C|$]]|$1|O|3|P|5|6|7|18|8|@]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|19|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]]]

The character of the server's response to the browser appears to be incorrectly specified as far as Unicode encoding is concerned. There is a <a href="https://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps">fairly detailed SO question on this topic</a>, if you're using Tomcat. Do note that you have to use UTF-8 and not ISO-Latin-1/ISO-8859-1 as Japanese characters do not fall into the Latin-1 character encoding.

In addition to the pointers about Unicode encoding, you might want to check a couple of things:

<ul>
<li>Is the data in the database stored in the manner you desire? You could use a tool like Oracle SQL Developer (which has Unicode support by default; I'm not sure about Japanese fonts, but you could switch to them) to view the contents of the database tables.</li>
<li>Are you setting the correct encoding for the application server JVM?</li>
<li>Are you viewing the pages with a Japanese font installed for the browser, and with the Japanese locale?</li>
</ul>

If you've ruled out all of the above, then Unicode characters (including Japanese) are being converted into a format that is not understandable.

blocks|key|509085|text|检查清单：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|509086|509087|检查您的浏览器区域设置(按照duffymo的建议)。|ordered-list-item|509088|您是否安装了亚洲字体(如果正在运行windows)。浏览到www.yahoo.co.jp+--您能在这里看到日语字符吗？|509089|如果您有日语字体和日语区域设置，请尝试直接运行以下语句：|509090|509091|从dual中选择unistr('\0041\0063\0063\0065\0073\0073\0020\004d\0061\006e\0061\0067\0065\006d\0065\006e')+|509092|blockquote|509093|509094|509095|如果#3成功，则表中消息字段的文件编码不正确。|509096|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|V|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|X|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|A|$]]|$1|M|3|-4|5|N|7|11|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|12|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|14|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|T|$]]

Checklist:

<ol>
<li>Check your browser locale (as suggested by duffymo).</li>
<li>Do you have the Asian Fonts installed (if running windows). Browse to www.yahoo.co.jp -- can you see Japanese characters here?</li>
<li>If you have the Japanese fonts and Japanese locale, try running the following statement directly : </li>
</ol>

<blockquote>
 select
 unistr('\0041\0063\0063\0065\0073\0073\0020\004d\0061\006e\0061\0067\0065\006d\0065\006e')
 from dual
</blockquote>

If #3 is successful, then the file encoding of the message field in your table is incorrect.

blocks|key|5710245|text|如果您在won浏览器中看到???，那么按照其他人的建议更改浏览器的区域设置/字符集真的没有多大帮助。只有当你看到�、空格和/或Mojibake时，它才会有帮助。另外，安装字体也不会有多大帮助。如果没有相应的字体，你会在火狐中看到包含十六进制码的方块，而在IE中看到的则是空白方块，而不是???。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5710246|在这里，???可能只有一个原因:您正在使用错误的编码将这些字符写入HTTP响应。一般的The服务器会用?替换未知字符。them浏览器不会这样做，它只是按原样显示它们。实际上，理论上还有另一个可能的原因；当您插入未知字符时，DB也会做同样的事情，但这里或多或少排除了这一点。|BOLD|5710247|不清楚您使用的是哪种视图技术，但由于您正在谈论Java和tag浏览器，我将假定您使用的是JSP/Servlet+(将来，请提及并标记为JSP/Servlet，这样才能接触到正确的受众)。|5710248|如果使用JSP显示这些字符，则需要将以下内容添加到JSP页面的顶部，以指示servletcontainer使用正确的编码写入这些字符：|5710249|<%25@+page+pageEncoding="UTF-8"+%25>|code-block|syntax|javascript|5710250|如果您使用Servlet手动编写这些字符，则在向其写入任何字符之前，需要将HTTP+servlet响应设置为使用正确的编码，如下所示：|5710251|response.setCharacterEncoding("UTF-8");|5710252|另请参阅：|5710253|5710254|Unicode+-+How+to+get+the+characters+right?|unordered-list-item|5710255|5710256|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Mojibake|1|http://balusc.blogspot.com/2009/05/unicode-how-to-get-characters-right.html^0|D|3|1K|1|3Z|3|1R|8|0|0|4|3|1F|1|2V|2|0|0|0|0|0|0|0|0|0|16|1|0|0^^$0|@$1|2|3|4|5|6|7|1C|8|@$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]]|D|@$9|1J|A|1K|1|1L]]|E|$]]|$1|F|3|G|5|6|7|1M|8|@$9|1N|A|1O|B|C]|$9|1P|A|1Q|B|C]|$9|1R|A|1S|B|H]]|D|@]|E|$]]|$1|I|3|J|5|6|7|1T|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|1U|8|@]|D|@]|E|$]]|$1|M|3|N|5|O|7|1V|8|@]|D|@]|E|$P|Q]]|$1|R|3|S|5|6|7|1W|8|@]|D|@]|E|$]]|$1|T|3|U|5|O|7|1X|8|@]|D|@]|E|$P|Q]]|$1|V|3|W|5|6|7|1Y|8|@]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|10|7|20|8|@]|D|@$9|21|A|22|1|23]]|E|$]]|$1|11|3|-4|5|6|7|24|8|@]|D|@]|E|$]]|$1|12|3|-4|5|6|7|25|8|@]|D|@]|E|$]]]|13|$14|$5|15|16|17|E|$18|19]]|1A|$5|15|16|17|E|$18|1B]]]]

If you are seeing <code>???</code> in the webbrowser, then changing the browser's locale/charset as suggested by others really won't help much. Only if you were seeing <code>�</code>, empty squares and/or <a href="http://en.wikipedia.org/wiki/Mojibake" rel="nofollow noreferrer">Mojibake</a>, then it may indeed help. Also installing fonts really won't help much as well. If there wasn't a font for it, you would in Firefox have seen squares with hexcodes inside and in IE empty squares and really not <code>???</code>.

The <code>???</code> can here have only one cause: you are writing those characters to the HTTP response using the wrong encoding. The average webserver will replace unknown characters by <code>?</code>. The webbrowser doesn't do that, it is just displaying them as is. Actually, there is in theory another possible cause; the DB will do the same when you're inserting unknown characters, but that's less or more excluded here.

It's not clear what view technology you're using, but since you're talking about Java and a webbrowser, I'll assume that you're using JSP/Servlet (in the future, please mention and tag as such, so that the right audience will be reached).

If you're displaying those characters using JSP, then you need to add the following to the top of your JSP page to instruct the servletcontainer to write those characters using the right encoding:

<pre><code>&lt;%@ page pageEncoding="UTF-8" %&gt;
</code></pre>

If you're writing those characters manually using a Servlet, then you need to set the HTTP servlet response to use the right encoding as follows before you write any character to it:

<pre><code>response.setCharacterEncoding("UTF-8");
</code></pre>

<h3>See also:</h3>

<ul>
<li><a href="http://balusc.blogspot.com/2009/05/unicode-how-to-get-characters-right.html" rel="nofollow noreferrer">Unicode - How to get the characters right?</a></li>
</ul>

blocks|key|2412825|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2412826|首先，\0041\0063\0063\0065\0073\0073\0020\004d\0061\006e\0061\0067\0065\006d\0065\006e似乎不是有效的日语UTF8字符串(它在UTF8中的意思是"Access+Managemen"+)。如果你想在CHAR列中插入日语字符，可以试试unistr('\306b\307b\3093\3054')+(在UTF-8中它的意思是"にほんご"+)。JDBC驱动程序可以识别数据库实例的NLS_CHARACTERSET，所以此时，如果你使用debugger查看resultSet.getString(2);的返回值，你会看到插入的日语字符串。|ordered-list-item|offset|length|style|CODE|2412827|要使用JSP将UTF-8字符串写入HTML，你必须在JSP文件的头部写入<%25@+page+language="java"+contentType="text/html;+charset=UTF-8"+pageEncoding="UTF-8"%25>。JSP的默认编码是ISO-8859-1+(请参阅https://docs.oracle.com/cd/E17802_01/j2ee/j2ee/1.4/docs/tutorial-update6/doc/WebI18N5.html+)，并且它不能处理日语字符。|2412828|2412829|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/cd/E17802_01/j2ee/j2ee/1.4/docs/tutorial-update6/doc/WebI18N5.html^0|0|3|28|33|I|3T|4|4A|U|5I|6|7A|N|0|10|2E|43|2I|0|0|0^^$0|@$1|2|3|-4|4|5|6|S|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|T|7|@$D|U|E|V|F|G]|$D|W|E|X|F|G]|$D|Y|E|Z|F|G]|$D|10|E|11|F|G]|$D|12|E|13|F|G]|$D|14|E|15|F|G]]|8|@]|9|$]]|$1|H|3|I|4|C|6|16|7|@$D|17|E|18|F|G]]|8|@$D|19|E|1A|1|1B]]|9|$]]|$1|J|3|-4|4|5|6|1C|7|@]|8|@]|9|$]]|$1|K|3|-4|4|5|6|1D|7|@]|8|@]|9|$]]]|L|$M|$4|N|O|P|9|$Q|R]]]]

<ol>
<li>First of all, <code>\0041\0063\0063\0065\0073\0073\0020\004d\0061\006e\0061\0067\0065\006d\0065\006e</code> doesn't seem to be a valid Japanese UTF-8 string (It means <code>"Access Managemen"</code> in UTF-8).
If you want to insert Japanese characters into <code>CHAR</code> column, try <code>unistr('\306b\307b\3093\3054')</code> (It means <code>"にほんご"</code> in UTF-8).</li>
<li>JDBC drivers recognizes NLS_CHARACTERSET of the DB instance, so at this point, if you peek the return value of <code>resultSet.getString(2);</code> with debugger, you will see the inserted Japanese string.</li>
<li>To write the UTF-8 string into HTML with JSP, you have to write <code>&lt;%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%&gt;</code> at the head of JSP file.
The default encoding of JSP is ISO-8859-1 (see <a href="https://docs.oracle.com/cd/E17802_01/j2ee/j2ee/1.4/docs/tutorial-update6/doc/WebI18N5.html" rel="nofollow noreferrer">https://docs.oracle.com/cd/E17802_01/j2ee/j2ee/1.4/docs/tutorial-update6/doc/WebI18N5.html</a> ), and it cannot handle Japanese characters.</li>
</ol>

I am fetching a Japanese string from Oracle Database and displaying it on the browser. But the characters are shown on the browser like ???. Inserted the Japanese string into DB using the unistr() function.

<pre><code>INSERT INTO MESSAGES (MESSAGE_ID,MESSAGE) VALUES (1,unistr('\0041\0063\0063\0065\0073\0073\0020\004d\0061\006e\0061\0067\0065\006d\0065\006e')); 
</code></pre>

I got this in my jvm logs <code>ISO8859-1</code> when I printed <code>System.getProperty("file.encoding")</code>. 

<code>select * from v$nls_parameters where parameter in ('NLS_CHARACTERSET')</code> yields <code>UTF8</code> in my DB. 

Any pointers on how the Japanese characters could be displayed correctly ?

Display problem with Japanese characters

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在从Oracle数据库中获取日语字符串，并将其显示在浏览器上。但在浏览器上显示的字符就像？使用unistr()函数将日语字符串插入DB。INSERT INTO MESSAGES (MESSAGE_ID,MESSAGE) VALUES (1,unistr('\0041\0063\0063\0065\0073\0073\0020\004d\0061\006e\0061\0067\0065\006d

问日语字符显示问题
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