Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
715 views
in Technique[技术] by (71.8m points)

int 是线程安全的吗?

例如在springmvc的controller中

    public class EnchashmentController extends BaseController {
            private int a = 0;
            
            @requestMapping("")
            public ModelAndView add(){
                a++;
                return null;
            }
    }

每一个请求都在这里都执行一次a加一操作,1万次请求(并发)甚至更多次以后,这里输出的a是否就是 10000 或者 100000呢?


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

应该说a++不是线程安全的


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...