How to Ensure Proper Content-Type Encoding in Spring MVC @ResponseBody Responses?

Setting Response Content-Type in Spring MVC via @ResponseBody

When developing with Spring MVC and the @ResponseBody annotation, it's important to control the content-type of the response. In one instance, a user encountered an issue where the response was displaying with ISO-8859-1 encoding instead of the desired UTF-8, despite explicitly setting the content-type to UTF-8 in the controller method.

Solution

To resolve this issue, the user discovered that the @ResponseBody annotation itself supports specifying the content-type through the produces attribute. By adding the following line to the controller method, they were able to explicitly define the content-type of the response:

<code class="java">@RequestMapping(value = "ajax/gethelp")
@ResponseBody(produces = "text/plain; charset=UTF-8")
public String handleGetHelp(Locale loc, String code, HttpServletResponse response) {
    // ...
}</code>

This configuration allows the controller method to return a plain text response with UTF-8 encoding, as intended.

Additional Notes

For users utilizing Spring 3.1 and above, the @ResponseBody annotation provides a more straightforward approach for setting the response content-type compared to using a custom converter strategy.

The above is the detailed content of How to Ensure Proper Content-Type Encoding in Spring MVC @ResponseBody Responses?. For more information, please follow other related articles on the PHP Chinese website!