使用Spring Data REST处理自定义异常（i18n）

大佬教程收集整理的这篇文章主要介绍了使用Spring Data REST处理自定义异常（i18n），大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

如何解决使用Spring Data REST处理自定义异常（i18n）？

@ControllerAdvice(Annotations = RepositoryRestController.class)
public class GenericExceptionHandler {
    @autowired
    private messagesource messagesource;

    @ExceptionHandler
    //if you don't use Exception e in method you can remove it , live only Locale
    public ResponseEntity handle(Exception e, Locale localE) {

            String errormessage = messagesource.getmessage(
                                 "error.message", new Object[]{},localE);  
            //set message  or return it instead of exceptionmessageObject
            exceptionmessageObject.setmessage(exceptionmessageObject);

            return new ResponseEntity(exceptionmessageObject, 
                   new httpheaders(), httpStatus);
    }

参见Spring7.15.1使用messagesource进行国际化

创建您自己的错误包装器，例如：

public class CustomError {
    private httpStatus status;
    private String message;
    private Exception originalException;//if you need it        
    // getter setter
}

创建解析器

private String resolveExceptionTomessage(Exception exceptio){
    //or put in map<Exceptio,String error.message.type1> 
    // String errorCode = map.get(excptio);
    //eturn messagesource.getmessage(errorCode , new Object[]{},localE);
    if(exceptio instanceof ....){
        return messagesource.getmessage("error.message.type1", new Object[]{},localE);
    }
    return "";
}

或将方法与@ExceptionHandler（{CustomException1.class}），@ExceptionHandler（{CustomException1.class}）....一起使用，并在每个方法中仅添加errror.code，其他所有部分都相似

 @ExceptionHandler({ CustomException1.class})
    public ResponseEntity handleException1() {
        return createError(code for this exceptio 1);
    }
    @ExceptionHandler({ CustomException2.class})
    public ResponseEntity handleException2() {
        return createError(code for this exceptio 2);
    }
    private ResponseEntity createError(String errorCode ) {
            CustomError customError = new CustomError();
            customError.sethttpStatus(httpStatus.bAD_requEST);
            String errormessage = messagesource.getmessage(
                                 errorCode , new Object[]{},localE);

            customError.setmessage(errormessage );
            customError.setoriginalException(E);
            return new ResponseEntity<Object>(customError, new httpheaders(), 
                          customError.getStatus());
    }

public ResponseEntity handle(Exception e, Locale localE) {
        CustomError customError = new CustomError();
        customError.sethttpStatus(httpStatus.bAD_requEST);
        customError.setmessage(resolveExceptionTomessage(E));
        customError.setoriginalException(E);
        return new ResponseEntity<Object>(customError, new httpheaders(), 
                      customError.getStatus());
}

解决方法

    {
    "timestamp": "2017-06-24T16:08:54.107+0000","status": 500,"error": "Internal Server Error","exception": "org.springframework.dao.InvalidDataAccessApiUsageException","message": "org.hibernate.TransientPropertyValueException: Not-null property references a transient value - transient instance must be saved beforequery current operation : com.test.server.model.workflows.WorkSession.checkPoint -> com.test.server.model.checkpoints.checkPoint; nested exception is java.lang.IllegalStateException: org.hibernate.TransientPropertyValueException: Not-null property references a transient value - transient instance must be saved beforequery current operation : com.test.server.model.workflows.WorkSession.checkPoint -> com.test.server.model.checkpoints.checkPoint","path": "/api/v1/workSessions/start"
}

@Bean
public LocaleResolver localeResolver() {
    return new smartLocaleResolver();
}

public class smartLocaleResolver extends CookieLocaleResolver {

    @Override
    public Locale resolveLocale(httpServletrequest request) {
        String acceptLanguage = request.getHeader("Accept-Language");
        if (acceptLanguage == null || acceptLanguage.trim().isEmpty()) {
            return super.determineDefaultLocale(request);
        }
        return request.getLocale();
    }

}

@Bean
public resourceBundlemessagesource messagesource() {
    resourceBundlemessagesource source = new resourceBundlemessagesource();
    source.setBasenames("i18n/messages"); // name of the resource bundle
    source.setUseCodeAsDefaultmessage(true);
    return source;
}

    @ControllerAdvice(Annotations = RepositoryRestController.class)
public class GenericExceptionHandler {

    @ExceptionHandler
    public ResponseEntity handle(Exception e,Locale localE) {
          //missing part...
            return new ResponseEntity(exceptionmessageObject,new httpHeaders(),httpStatus);
    }

大佬总结

以上是大佬教程为你收集整理的使用Spring Data REST处理自定义异常（i18n）全部内容，希望文章能够帮你解决使用Spring Data REST处理自定义异常（i18n）所遇到的程序开发问题。

如果觉得大佬教程网站内容还不错，欢迎将大佬教程推荐给程序员好友。

本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。