JSON character encoding

Question

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

{\'value\': \'aériennes\'}

When \'aériennes\' is displayed in the w

Answer 1

The symptoms indicate that the JSON string which was originally in UTF-8 encoding was written to the HTTP response using ISO-8859-1 encoding and the webbrowser was instructed to display it as UTF-8. If it was written using UTF-8 and displayed as ISO-8859-1, then you would have seen aériennes. If it was written and displayed using ISO-8859-1, then you would have seen a�riennes.

To fix the problem of the JSON string incorrectly been written as ISO-8859-1, you need to configure your webapp / Spring to use UTF-8 as HTTP response encoding. Basically, it should be doing the following under the covers:

response.setCharacterEncoding("UTF-8");

Don't change your content type header. It's perfectly fine for JSON and it is been displayed as UTF-8.

Answer 2

finally I got the solution:

Only put this line

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

this will definitely help.

Answer 3

If you're using StringEntity try this, using your choice of character encoding. It handles foreign characters as well.

Answer 4

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 @ResponseBody. If you're doing this as well this might help.

Add the following bean to your dispatcher servlet.

<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>

(Found here: http://forum.spring.io/forum/spring-projects/web/74209-responsebody-and-utf-8)