blocks|key|1969968|text|我认为您应该使用getWriter()。它将接受一个字符串并对其进行编码，而输出流用于处理二进制数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1969969|从文档中：|1969970|1969971|返回一个可以向客户端发送字符文本的PrintWriter对象。使用的字符编码是在setContentType(java.lang.String)方法的charset=属性中指定的编码，必须在调用此方法之前调用该属性才能使字符集生效。|blockquote|1969972|1969973|可以调用此方法或getOutputStream()来写入正文，但不能同时调用两者。|1969974|1969975|以下是代码的更改：|1969976|response.setContentType("text/html;+charset=UTF-8");
response.setCharacterEncoding("UTF-8");
PrintWriter+out+=+response.getWriter();
out.println(...MY-UTF-8+CODE...);|code-block|syntax|javascript|1969977|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletResponse.html#getWriter%2528%2529^0|8|B|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|17|8|@]|9|@]|C|$]]|$1|G|3|H|5|I|7|18|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|19|8|@]|9|@]|C|$]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|1B|8|@]|9|@]|C|$]]|$1|N|3|O|5|6|7|1C|8|@]|9|@]|C|$]]|$1|P|3|Q|5|R|7|1D|8|@]|9|@]|C|$S|T]]|$1|U|3|-4|5|6|7|1E|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]]]

I think you want to use <a href="http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletResponse.html#getWriter%28%29" rel="noreferrer">getWriter()</a> instead. That will accept a string and encode it, whereas the output stream is for handling binary data.

From the doc:

<blockquote>
 Returns a PrintWriter object that can
 send character text to the client. The
 character encoding used is the one
 specified in the charset= property of
 the setContentType(java.lang.String) 
 method, which must be called before
 calling this method for the charset to
 take effect.
 
 Either this method or
 getOutputStream() may be called to
 write the body, not both.
</blockquote>

Here's the change of the code:

<pre><code>response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.println(...MY-UTF-8 CODE...);
</code></pre>

blocks|key|806685|text|这也是可行的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|806686|ServletOutputStream+out+=+response.getOutputStream();
out.write("MY-UTF-8+CODE".getBytes("UTF-8"));+|code-block|syntax|javascript|806687|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This also works:

<pre><code>ServletOutputStream out = response.getOutputStream();
out.write("MY-UTF-8 CODE".getBytes("UTF-8")); 
</code></pre>

blocks|key|806674|text|同样的情况以前也发生在我身上，我试图在PrintWriter的顶端添加一行代码，结果是work。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|806675|response.setContentType("text/html；charset=GBK");|offset|length|style|BOLD|806676|PrintWriter+out+=+response.getWriter()；|806677|entityMap^0|0|0|1D|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

The same case happen to me before and i tried to add-on one line on top of the PrintWriter and it is work. 

response.setContentType("text/html; charset=GBK"); 
PrintWriter out = response.getWriter();

blocks|key|1970047|text|在您必须从doFilter请求Dispatcher到@WebServlet("/anywebpage")的情况下，它应该只包含PrintWriter+out+=+response.getWriter()；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1970048|++++++++String+erpg+=+"anywebpage";
++++++++response.setContentType("text/html;+charset=UTF-8");
++++++++RequestDispatcher+rd+=+request.getRequestDispatcher(erpg);
++++++++rd.include(request,+response);|code-block|syntax|javascript|1970049|您不需要声明以下行:+response.setCharacterEncoding("UTF-8")；|1970050|相反，请确保在PrintWriter+out+=+response.getWriter()；指令之前包含以下内容：|1970051|response.setContentType("text/html;+charset=UTF-8");|1970052|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In the case where you have to Request Dispatcher from a doFilter to @WebServlet("/anywebpage") which should only contain the PrintWriter out = response.getWriter();

<pre><code> String erpg = "anywebpage";
 response.setContentType("text/html; charset=UTF-8");
 RequestDispatcher rd = request.getRequestDispatcher(erpg);
 rd.include(request, response);
</code></pre>

You should NOT require to declare the following line:
response.setCharacterEncoding("UTF-8");

Instead, make sure to include the following before the PrintWriter out = response.getWriter(); instruction:

<pre><code>response.setContentType("text/html; charset=UTF-8");
</code></pre>

blocks|key|806691|text|public+void+output(String+jsonStr,+HttpServletResponse+response)+throws+IOException+{
++++response.setContentType("text/html;charset=UTF-8;");
++++response.setCharacterEncoding("UTF-8");
++++ServletOutputStream+out+=+response.getOutputStream();
++++out.write(jsonStr.getBytes("UTF-8"));
++++out.flush();
++++out.close();
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|806692|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public void output(String jsonStr, HttpServletResponse response) throws IOException {
 response.setContentType("text/html;charset=UTF-8;");
 response.setCharacterEncoding("UTF-8");
 ServletOutputStream out = response.getOutputStream();
 out.write(jsonStr.getBytes("UTF-8"));
 out.flush();
 out.close();
}
</code></pre>

blocks|key|2215060|text|//+HTML+Output+code+list
StringBuffer+select_code+=+new+StringBuffer();
List<con_element>+ccc+=+codeService.code_select(code);

for(int+i=0;i<ccc.size();i%2B%2B){
++++select_code.append("<option+value='"+%2B+ccc.get(i).getCce_num()+%2B+"'>"+%2B+ccc.get(i).getCce_hname()+%2B+"</option>"+);
}

response.setContentType("text/html;+charset=UTF-8");
response.setCharacterEncoding("UTF-8");
response.getWriter().print(+select_code+);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2215061|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>// HTML Output code list
StringBuffer select_code = new StringBuffer();
List&lt;con_element&gt; ccc = codeService.code_select(code);

for(int i=0;i&lt;ccc.size();i++){
 select_code.append("&lt;option value='" + ccc.get(i).getCce_num() + "'&gt;" + ccc.get(i).getCce_hname() + "&lt;/option&gt;" );
}

response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
response.getWriter().print( select_code );
</code></pre>

My servlet code looks like that:

<pre><code>response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
ServletOutputStream out = response.getOutputStream();
out.println(...MY-UTF-8 CODE...);
</code></pre>

...

then I get the error:

<pre><code>java.io.CharConversionException: Not an ISO 8859-1 character: ש
 javax.servlet.ServletOutputStream.print(ServletOutputStream.java:89)
 javax.servlet.ServletOutputStream.println(ServletOutputStream.java:242)
 rtm.servlets.CampaignLogicServlet.doPost(CampaignLogicServlet.java:68)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
</code></pre>

How can I switch the charset of Servlet's outputstream ???

how to send through ServletOutputStream characters in UTF-8 encoding

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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我的servlet代码如下所示：response.setContentType("text/html; charset=UTF-8");response.setCharacterEncoding("UTF-8");ServletOutputStream out = response.getOutputStream();out.println(...MY-UTF-8 CODE...);..。然后我得

问如何发送UTF8编码的ServletOutputStream字符
EN

回答 6

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问如何发送UTF8编码的ServletOutputStream字符
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