Who sets request content-type in Spring MVC

Question

I have read through the post "Who sets response content-type in Spring MVC (@ResponseBody)", it helped me to resolve my problem of displaying UTF-8 (CJK characters) data at client side using JSON method.

Now find I have problem to post UTF-8 data to server side using JSON. The javascript method I am using:

function startSomething() {

    console.log("startSomething()");
    console.log("  getOriginName() = " + getOriginName());
    console.log("  getDestinationName() = " + getDestinationName());

    $.ajaxSetup({ scriptCharset: "utf-8" , 
                  contentType: "application/json; charset=utf-8"});

    // send the data to server side
    $.ajax({
        url: "/mywebapp/something/start",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        data: {
            originName          : getOriginName(),
            destinationName     : getDestinationName()
        },
        success: function(response) {
            // do something
        }
    });
}

After triggering the javascript method, I can see the value printed out in browser console correctly, something as:

  getOriginName() = N Bridge Rd
  getDestinationName() = 夢幻之城@ Boat Quay

My server side code:

@RequestMapping("/something")
@Controller
public class TestController {

    // the logger
    private Logger logger = Logger.getLogger(TestController.class);

    @RequestMapping(value = "/start", method = RequestMethod.GET)
    public ResponseEntity<String> start(@RequestParam String originName, 
                                        @RequestParam String destinationName,
                                        HttpServletRequest request, 
                                        HttpServletResponse response) {

        String characterEncoding = request.getCharacterEncoding();
        String contentType = request.getContentType();

        logger.debug("  characterEncoding = " + characterEncoding);
        logger.debug("  contentType = " + contentType);

        if (logger.isDebugEnabled()) {
            String logMessage = StringUtils.join(
                    new Object[]{
                            "  originName = ", originName,
                            "  destinationName = ", destinationName
                    }
            );
            logger.debug(logMessage);
        }

        ...
    }
}

The output from my server side code:

TestController -   characterEncoding = UTF-8
TestController -   contentType = application/json; charset=utf-8
TestController -   originName = N Bridge Rd  destinationName = å¤¢å¹»ä¹å@ Boat Quay

You can see that the request encoding is UTF-8, but the value from client side is wrongly encoded CJK character.

What can go wrong here? Please give me some hints, thank you. George

Do mean to be using the POST HTTP method? You might be running into URL encoding issues passing the UTF-8 strings as URL params. — Peter Bratton, Dec 28 '11 at 18:14
Unfortunately POST does not work for my case, I don't know why. ;( — George Sun, Dec 29 '11 at 10:31

score 4 · Accepted Answer · answered Dec 28 '11 at 21:59

4

I had a similar problem with JSON & Spring and solved the issue by specifying URIEncoding="UTF-8" on <Connector> in my Tomcat server.xml config, as described here:

http://wiki.apache.org/tomcat/FAQ/CharacterEncoding#Q8

answered Dec 28 '11 at 21:59

nickdos

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1

Awesome! After deploying my application to a tomcat server with above Connector configuration, the problem is resolved! Thank you so much! – George Sun Dec 29 '11 at 10:30

Who sets request content-type in Spring MVC

1 Answers1