使用spring-mvc将异常序列化为JSON [英] Serialize exceptions to JSON with spring-mvc

问题描述

@RequestMapping(..)
@ResponseBody
public SearchResponse search(SearchRequest request) throws SearchException { .. }

我想返回请求者:

• 在一切正常的情况下以JSON序列化的搜索响应
如果抛出SearchException，则
• JSON序列化的异常详细信息.

第一部分工作正常(在类路径和<mvc:annotation-driven />上具有Jackson)，但是我看不到将异常序列化为json的简单方法.

The first part works fine (having Jackson on the classpath and <mvc:annotation-driven />) but I don't see an easy way to serialize the exception as json.

我可以注册一个自定义处理程序，然后从那里编写一个JSON字符串，但是我可能还需要XML序列化，这意味着我将需要在处理程序中使用条件.还没准备好吗?

I can register a custom handler, and write a JSON string from there, but I may also need XML serialization, which will mean I'll need conditionals in the handler. Isn't there something ready for that?

推荐答案

这是有效的方法:我使用了

Here's what worked: I took axtavt's suggestion (annotating it with @Component), and added this method to the controller:

@ExceptionHandler(CustomException.class)
public @ResponseBody CustomException handleException(CustomException ex) {
    return ex;
}

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