直接上代码
@Component
public class CustomBlockConfig implements BlockExceptionHandler {
public void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, BlockException e) throws Exception {
R r = R.error(-101, "流控异常");
if (e instanceof ParamFlowException) {
r = R.error(-102, "hot-spot异常");
}
if (e instanceof AuthorityException) {
r = R.error(-103, "流控异常");
}
if (e instanceof DegradeException) {
r = R.error(-104, "降级异常");
}
if (e instanceof SystemBlockException) {
r = R.error(-105, "系统规则异常");
}
if (e instanceof FlowException) {
r = R.error(-106, "流控异常");
}
httpServletResponse.setStatus(200);
httpServletResponse.setContentType("application/json;charset=utf-8");
PrintWriter out = httpServletResponse.getWriter();
out.print(JSON.toJSON(r).toString());
out.flush();
out.close();
}
}
效果
image.png
其他
特别想试试这个异常会不会和全局异常冲突,然后代码试试
@RestControllerAdvice
@Slf4j
public class GlobalException {
@ExceptionHandler(value = Exception.class)
@ResponseBody
public R exceptionHandler(Exception e){
log.error("发生业务异常！原因是：{}",e.getMessage());
return R.error(500,e.getMessage());
}
}
//get接口处手写一个异常
@GetMapping("user_value")
public String getUserValue() {
int i = 10;
int b = i/0;
log.info("name:"+name+" pwd:"+pwd);
return "name:"+name+" pwd:"+pwd;
}
然后f5刷起来
image.png
image.png
效果来看sentinal的流控应该在运行异常之前所以完全不受影响，可以放心coding...
