blocks|key|897039|text|我不知道这是否再有意义了，但是我用@RequestMapping注解修复了它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|897040|@RequestMapping(method=RequestMethod.GET,+produces={"application/json;+charset=UTF-8"})|code-block|syntax|javascript|897041|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|$]]

I don´t know if this is relevant anymore, but I fixed it with the @RequestMapping annotation.

<pre><code>@RequestMapping(method=RequestMethod.GET, produces={"application/json; charset=UTF-8"})
</code></pre>

blocks|key|1111739|text|首先，您发布的数据不是有效的JSON。这将是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1111740|{"value":+"aériennes"}|code-block|syntax|javascript|1111741|请注意双引号:它们是必需的。|1111742|JSON+data+should+be+application/json的Content-Type。实际的JSON数据(我们上面有的)应该使用UTF-8、UTF-16或UTF-32进行编码-我建议使用UTF-8。|offset|length|style|CODE|1111743|您可以使用诸如Wireshark之类的工具来监控网络流量并查看数据的外观，您应该会看到é的字节c3+89。我从来没有使用过Spring，但是如果它做的是JSON编码，那么这个问题可能已经为您处理好了。|1111744|一旦JSON到达浏览器，它应该是好的，如果它是有效的。但是，如何将来自JSON响应的数据插入到网页中呢？|1111745|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ietf.org/rfc/rfc4627.txt^0|0|0|0|K|G|A|9|0|0|1B|5|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|13|8|@$K|14|L|15|M|N]]|9|@$K|16|L|17|1|18]]|A|$]]|$1|O|3|P|5|6|7|19|8|@$K|1A|L|1B|M|N]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1C|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

First, your posted data isn't valid JSON. This would be:

<pre><code>{"value": "aériennes"}
</code></pre>

Note the double quotes: They are required.

The Content-Type for JSON data <a href="http://www.ietf.org/rfc/rfc4627.txt" rel="noreferrer">should be</a> <code>application/json</code>. The actual JSON data (what we have above) should be encoded using UTF-8, UTF-16, or UTF-32 - I'd recommend using UTF-8.

You can use a tool like Wireshark to monitor network traffic and see how the data looks, you should see the bytes <code>c3 89</code> for the é. I've never worked with Spring, but if it's doing the JSON encoding, this is probably taken care of properly, for you.

Once the JSON reaches the browser, it should good, if it is valid. However, how are you inserting the data from the JSON response into the webpage?

blocks|key|897151|text|最后我得到了解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|897152|只把这一行|897153|@RequestMapping(value+=+"/YOUR_URL_Name",method+=+RequestMethod.POST,produces+=+"application/json;+charset=utf-8")|code-block|syntax|javascript|897154|这肯定会有所帮助。|897155|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

finally I got the solution:

Only put this line 

<pre><code>@RequestMapping(value = "/YOUR_URL_Name",method = RequestMethod.POST,produces = "application/json; charset=utf-8")
</code></pre>

this will definitely help.

blocks|key|1111799|text|同样的事情也发生在我身上：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1111800|<%25@+page+language="java"+contentType="application/json"+pageEncoding="UTF-8"%25>|code-block|syntax|javascript|1111801|但这对我来说很有效：|1111802|<%25@+page+language="java"+contentType="application/json;+charset=UTF-8"+pageEncoding="UTF-8"%25>|1111803|尝试添加|1111804|+;charset=UTF-8|1111805|发送到您的contentType。|1111806|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

That happened to me exactly the same with this:

<pre><code>&lt;%@ page language="java" contentType="application/json" pageEncoding="UTF-8"%&gt;
</code></pre>

But this works for me:

<pre><code>&lt;%@ page language="java" contentType="application/json; charset=UTF-8" pageEncoding="UTF-8"%&gt;
</code></pre>

Try adding

<pre><code> ;charset=UTF-8
</code></pre>

to your contentType.

blocks|key|1111813|text|response.setContentType("application/json;charset=utf-8");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1111814|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>response.setContentType("application/json;charset=utf-8");
</code></pre>

blocks|key|897294|text|这里的答案帮助我解决了我的问题，尽管它并不完全相关。我使用了UTF以及@Produces和@Consumes注解，并遇到了同样的问题--我在webservice中返回的javax.ws.rs不是UTF8格式的。我在我的控制器函数上添加了以下注释来解决这个问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|897295|@Produces(javax.ws.rs.core.MediaType.APPLICATION_JSON+%2B+";+charset=UTF-8")|code-block|syntax|javascript|897296|和|897297|@Consumes(javax.ws.rs.core.MediaType.APPLICATION_JSON+%2B+";+charset=UTF-8")|897298|在每个端点的get和post函数上。我没有设置字符集，这解决了它。这是jersey的一部分，所以你可能需要添加一个maven依赖项。|897299|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]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

The answers here helped me solve my problem, although it's not completely related. 
I use the javax.ws.rs API and the @Produces and @Consumes annotations and had this same problem - the JSON I was returning in the webservice was not in UTF-8. I solved it with the following annotations on top of my controller functions :

<pre><code>@Produces(javax.ws.rs.core.MediaType.APPLICATION_JSON + "; charset=UTF-8")
</code></pre>

and

<pre><code>@Consumes(javax.ws.rs.core.MediaType.APPLICATION_JSON + "; charset=UTF-8")
</code></pre>

On every endpoint's get and post function. I wasn't setting the charset and this solved it. This is part of jersey so maybe you'll have to add a maven dependency.

blocks|key|1111927|text|如果您使用的是StringEntity，请尝试this，使用您选择的字符编码。它也可以处理外文字符。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1111928|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/24762641/posting-foreign-characters-using-json-produces-400/24765275#24765275^0|7|C|N|4|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

If you're using <code>StringEntity</code> try <a href="https://stackoverflow.com/questions/24762641/posting-foreign-characters-using-json-produces-400/24765275#24765275">this</a>, using your choice of character encoding. It handles foreign characters as well.

blocks|key|897228|text|如果上面建议的解决方案不能解决你的问题(对于我来说)，这也可能会有所帮助：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|897229|我的问题是我使用Springs+@ResponseBody在响应中返回了一个json字符串。如果您也这样做，这可能会有所帮助。|offset|length|style|CODE|897230|将以下bean添加到dispatcher+servlet。|897231|<bean
++++class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
++++<property+name="messageConverters">
++++++++<list>
++++++++++++<bean
++++++++++++++++class="org.springframework.http.converter.StringHttpMessageConverter">
++++++++++++++++<property+name="supportedMediaTypes">
++++++++++++++++++++<list>
++++++++++++++++++++++++<value>text/plain;charset=UTF-8</value>
++++++++++++++++++++</list>
++++++++++++++++</property>
++++++++++++</bean>
++++++++</list>
++++</property>
</bean>|code-block|syntax|javascript|897232|(点击此处：http://forum.spring.io/forum/spring-projects/web/74209-responsebody-and-utf-8)|897233|entityMap|0|LINK|mutability|MUTABLE|url|http://forum.spring.io/forum/spring-projects/web/74209-responsebody-and-utf-8^0|0|G|D|0|0|0|6|25|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@$D|10|E|11|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|13|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|14|8|@]|9|@$D|15|E|16|1|17]]|A|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

If the suggested solutions above didn't solve your issue (as for me), this could also help:

My problem was that I was returning a json string in my response using Springs <code>@ResponseBody</code>. If you're doing this as well this might help.

Add the following bean to your dispatcher servlet.


<pre><code>&lt;bean
 class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"&gt;
 &lt;property name="messageConverters"&gt;
 &lt;list&gt;
 &lt;bean
 class="org.springframework.http.converter.StringHttpMessageConverter"&gt;
 &lt;property name="supportedMediaTypes"&gt;
 &lt;list&gt;
 &lt;value&gt;text/plain;charset=UTF-8&lt;/value&gt;
 &lt;/list&gt;
 &lt;/property&gt;
 &lt;/bean&gt;
 &lt;/list&gt;
 &lt;/property&gt;
&lt;/bean&gt;
</code></pre>

(Found here: <a href="http://forum.spring.io/forum/spring-projects/web/74209-responsebody-and-utf-8" rel="nofollow">http://forum.spring.io/forum/spring-projects/web/74209-responsebody-and-utf-8</a>)

My Java web application submits an AJAX request that returns JSON such:

<pre><code>{'value': 'aériennes'}
</code></pre>

When 'aériennes' is displayed in the webpage, it appears as 'a�riennes', so I guess there's some kind of character encoding problem. The AJAX response headers include

<pre><code>Content-Type application/json
</code></pre>

which doesn't appear to include any charset information. I guess this needs to be changed to something like

<pre><code>Content-Type text/html; charset=iso-8859-1 (or charset=utf8)
</code></pre>

The server-side of the app is Spring MVC, and I guess there must be a way to set the default charset for each response?

JSON character encoding

服务器

JSON

Java

我的Java web应用程序提交一个返回JSON的AJAX请求，如下所示：{'value': 'aériennes'}当'aériennes‘显示在网页中时，它会显示为'a�riennes'，所以我猜可能存在某种字符编码问题。AJAX响应头包括Content-Type    application/json它似乎不包含任何字符集信息。我想这需要改成像这样的Content-Type    text/

问JSON字符编码
EN

回答 8

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