英文:
Customized Exception returning empty message in Spring Boot
问题
我创建了一个自定义异常 ProduitIntrouvableException，它继承了 RuntimeException。
@ResponseStatus(HttpStatus.NOT_FOUND)public class ProduitIntrouvableException extends RuntimeException {public ProduitIntrouvableException(String s) {super(s);}}
在我的控制器中，当我的 p 为 null 时，我抛出它，如下所示：
@RestControllerpublic class ProductController {@Autowiredprivate ProductDao productDao;@GetMapping(value="/Produits/{id}")public MappingJacksonValue afficherUnProduit(@PathVariable int id) throws ProduitIntrouvableException {Product p = productDao.findById(id);if (p == null)throw new ProduitIntrouvableException("Le produit avec l'id " + id + " n'existe pas");SimpleBeanPropertyFilter monFiltre = SimpleBeanPropertyFilter.serializeAllExcept("prixAchat", "id");FilterProvider listDeNosFiltres = new SimpleFilterProvider().addFilter("monFiltreDynamique", monFiltre);MappingJacksonValue produitsFiltres = new MappingJacksonValue(p);produitsFiltres.setFilters(listDeNosFiltres);return produitsFiltres;}}
但是，当我将字符串 "product not found" 传递给构造函数时，我得到一个空消息，但我不知道为什么被忽略。
{"timestamp": "2020-08-05T16:36:06.825+00:00","status": 404,"error": "Not Found","message": "","path": "/Produits/40"}
可能的原因是 Spring Boot 版本为 2.3.2.RELEASE。
英文:
I created my custom Exception ProduitIntrouvableException which extends RuntimeException
@ResponseStatus(HttpStatus.NOT_FOUND)public class ProduitIntrouvableException extends RuntimeException {public ProduitIntrouvableException(String s) {super(s);}}
and in my controller, I throw it when my p is null as follow
@RestControllerpublic class ProductController {@Autowiredprivate ProductDao productDao;@GetMapping(value="/Produits/{id}")public MappingJacksonValue afficherUnProduit(@PathVariable int id) throws ProduitIntrouvableException {Product p = productDao.findById(id);if(p==null)throw new ProduitIntrouvableException("Le produit avec l'id "+id+" n'existe pas");SimpleBeanPropertyFilter monFiltre = SimpleBeanPropertyFilter.serializeAllExcept("prixAchat","id");FilterProvider listDeNosFiltres = new SimpleFilterProvider().addFilter("monFiltreDynamique", monFiltre);MappingJacksonValue produitsFiltres = new MappingJacksonValue(p);produitsFiltres.setFilters(listDeNosFiltres);return produitsFiltres;}}
But I am getting an empty message as follow while I pass a String "product not found" to the constructor but I don't why it is ignored
{"timestamp": "2020-08-05T16:36:06.825+00:00","status": 404,"error": "Not Found","message": "","path": "/Produits/40"}
what can be the reason.
Spring Boot version: 2.3.2.RELEASE
答案1
得分: 3
> 默认情况下，错误消息和任何绑定错误不再默认包含在默认错误页面中。这降低了向客户端泄漏信息的风险。server.error.include-message和server.error.include-binding-errors可以用于控制消息和绑定错误的包含。支持的值分别是always、on-param和never。
英文:
From Spring Boot 2.3 Release Notes:
> The error message and any binding errors are no longer included in the default error page by default. This reduces the risk of leaking information to a client. server.error.include-message and server.error.include-binding-errors can be used to control the inclusion of the message and binding errors respectively. Supported values are always, on-param, and never.
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