控制器类中的Spring初始化错误接口

编辑2因为您没有模型属性,所以需要使用实现错误的具体类。 BeanPropertyBindingResult 就是这样。

您可以使用 BeanPropertyBindingResult 如下所示

@RequestMapping(value = "/publicar", method = { RequestMethod.GET, RequestMethod.POST }, produces = MediaType.APPLICATION_XML_VALUE)
@ResponseBody
public ApiPubPortalPublicarOut publicar(@RequestParam(value = PARAM_XML) String xml, Locale locale) {
    //This object is my return, it creates an XML with the validation.
    ApiPubPortalPublicarOut xmlTaxOut = new ApiPubPortalPublicarOut();


    //validate incoming xml is empty
    if ((xml == null) || (xml.length() == 0)) {
        xmlTaxOut.setDescription("xml is Empty!");
        return xmlTaxOut;
    }else{
        try{
            //I transform the xml into an object
            JAXBContext jc = JAXBContext.newInstance(ApiPubPortalPublicarPortal.class);
            Unmarshaller unmarshaller = jc.createUnmarshaller();
            StreamSource streamSource = new StreamSource(new StringReader(xmlEntrada));
            JAXBElement<ApiPubPortalPublicarPortal> je = unmarshaller.unmarshal(streamSource, ApiPubPortalPublicarPortal.class);

            // Using concrete implementation of error interface
            BeanPropertyBindingResult result = new BeanPropertyBindingResult(je.getValue(), "apiPubPortal");


            //Here is the validation method.
            parsingPublicacion(je.getValue(), result, locale);
            if(result.hasErrors()){
                xmlTaxOut.setDescription(result.getAllErrors().toString());
                return xmlTaxOut;
            }
        }catch(Exception){
            xmlTaxOut.setDescription("Error parsing!");
            return xmlTaxOut;
        }
    }
}

编辑1 您也可以将错误接口用作方法参数。Spring仍将填充一个实现。

使用 BindigResults 像 方法参数 并将其用于 错误 。Spring将自动为您填充一个实现。

@RequestMapping(value = "/publicar", method = { RequestMethod.GET, RequestMethod.POST }, produces = MediaType.APPLICATION_XML_VALUE)
@ResponseBody
public ApiPubPortalPublicarOut publicar(@RequestParam(value = PARAM_XML) String xml,
                                        BindingResult result, Locale locale) {
            //This object is my return, it creates an XML with the validation.
            ApiPubPortalPublicarOut xmlTaxOut = new ApiPubPortalPublicarOut();
            // Use BindingResult in places of erros


        }

绑定结果 扩展错误,因此您将在其中具有错误功能。

https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html#mvc-ann-arguments

You can Binding Result & FieldErrors instead of Errors. Please find the below code.

private void parsingPublicacion(ApiPubPortalPublicarPortal portalPublicado,  BindingResult bindingResult, Locale locale) {
    ApiPubPortalPublicarPortal pubPortal = portalPublicado;
    String[] codes = {"errorCode"};
    ValidationUtils.rejectIfEmptyOrWhitespace(e, "name", "name.empty"));
    if (pubPortal.getNombre().length() > 50){
        e.rejectValue("name", "name.oversize");
        bindingResult.addError(new FieldError(Yourclass.getSimpleName(),"Name", pubPortal.getNombre(), false , codes , null , "name.oversize"));
    }

    ValidationUtils.rejectIfEmptyOrWhitespace(e, "idLanguage.empty");
    if ((pubPortal.getIdPortal() == 0)){
        e.rejectValue("idLanguage", "idLanguage.zero"));
        bindingResult.addError(new `enter code here`FieldError(Yourclass.getSimpleName(),"idLanguage", pubPortal.getIdPortal(), false , codes , null , "idLanguage.zero"));
    }

}