Question

我有一个客户端正在尝试连接的API。但它会引发错误：

2015 09 22 04:21:44.297 [org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor] Could not parse Accept header: Invalid token character ',' in token "json,application/x-www-form-urlencoded"
2015 09 22 04:21:44.298 [org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver] Resolving exception from handler [public org.springframework.http.ResponseEntity<java.lang.String> com.areviews.api.restcontroller.APIOrderController.getNewOrderApi(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.lang.Exception]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
2015 09 22 04:21:44.298 [org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver] Invoking @ExceptionHandler method: public org.springframework.web.servlet.ModelAndView com.areviews.web.controller.AbstractController.handleException(java.lang.Exception,javax.servlet.http.HttpServletRequest)
org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:115)
    at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:129)
    at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:74)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)

控制器：

@RequestMapping(value = {"order/add"}, method = RequestMethod.POST, produces="application/json; charset=utf-8")
@ResponseBody
public ResponseEntity<String> getNewOrderApi(HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    .....

    return JsonUtils.createJson(jsonObj);
}

他们使用jQuery来请求我的API：

    $.ajax({
            url: "https://api.mywebsite.com/apiv1/order/add",
            type: 'POST',
            beforeSend: function(xhr) {
                xhr.setRequestHeader("Content-Type","application/json;charset=utf-8");
            },
            data : JSON.stringify(data),
            dataType: 'json',
            success: function(data) {
                if (data.success == true){
                    console.log(data);
                }else{
                    console.log("error: " + data.error_description);
                }
            }
        });

问题出在他们的Request Header中，“Content-Type”是：

Accept:application/json, text/javascript, */*
Accept-Encoding:gzip, deflate
Accept-Language:zh,zh-TW;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Content-Length:561
Content-Type:application/x-www-form-urlencoded, application/json;charset=UTF-8

我们不知道“application / x-www-form-urlencoded”来自哪里（“，”会产生问题，因为它应该是“;”）。我该怎么办？他们可以做些什么？

Answer 1

我也面临同样的问题。

我曾尝试使用Volley从Android获取API。

有2种不同的Content-Type。一个是Request标头Content-Type，另一个是Body Content-Type。当您从排球，截击请求标头发起POST或PUT请求并检查正文内容类型时。如果未提及body Content-Type，则会自行添加。 Volley结合了Content-Type和我们的服务器只能接受一种Content-Type。但是，由于volley将头部和主体的Content-Type结合起来，因此它变为＆＃34; application / json，application / x-www-form-urlencoded;字符集= UTF-8＆＃34;

此处，＆＃34; application/x-www-form-urlencoded＆＃34;是请求正文的Content-Type。因此，要解决此问题，您可以覆盖getBodyContentType()方法并返回null。

@Override
public String getBodyContentType() {
//return super.getBodyContentType();
    return null;
}

请勿使用return ""。使用return ""也会抛出异常。

[org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor] Could not parse Accept header: Invalid token character ',' in token "json, "

希望这会有所帮助。

HttpMediaTypeNotAcceptableException / HttpMediaTypeNotAcceptableException：找不到可接受的表示

1 个答案: