我尝试为rest 控制器配置一个spring 异常处理程序,该控制器能够根据传入的accept 标头将映射渲染到xml 和json。它现在抛出 500 servlet 异常。
这有效,它获取了 home.jsp:
@ExceptionHandler(IllegalArgumentException.class)
public String handleException(final Exception e, final HttpServletRequest request, Writer writer)
{
return "home";
}
这不起作用:
@ExceptionHandler(IllegalArgumentException.class)
public @ResponseBody Map<String, Object> handleException(final Exception e, final HttpServletRequest request, Writer writer)
{
final Map<String, Object> map = new HashMap<String, Object>();
map.put("errorCode", 1234);
map.put("errorMessage", "Some error message");
return map;
}
在同一个控制器中,通过相应的转换器将响应映射到 xml 或 json:
@RequestMapping(method = RequestMethod.GET, value = "/book/{id}", headers = "Accept=application/json,application/xml")
public @ResponseBody
Book getBook(@PathVariable final String id)
{
logger.warn("id=" + id);
return new Book("12345", new Date(), "Sven Haiges");
}