spring基于注解的全局异常处理方式

需求：

系统运行有运行时异常，这些异常又不能呈现给客户，那么就需要进行全局处理

实现：

基于@ExceptionHandler

1.定义一个BaseController的所有的Controller都继承他

public class BaseController {
	@ExceptionHandler({ RuntimeException.class })
	public String exception(RuntimeException e) {
		//do your biz
		return "usr/tologin";
	}
}

当有异常产生时定位到usr/tologin

2.所有的Controller都继承他

@Controller
@RequestMapping("upload")
public class UploadController extends BaseController {
	private Logger log = LoggerFactory.getLogger(UploadController.class);

	@RequestMapping(value = "/image", method = RequestMethod.POST, headers = "content-type=application/octet-stream")
	public String image(HttpServletRequest request) throws Exception {
		 //you biz
		return "image";
	}
}