一直都不明白为什么mac就是不现实8080端口，现在明白了

USERtekiiMac-3:~ user$ netstat -an | grep tcp46tcp46      0      0  *.8009                 *.*                    LISTEN     tcp46      0      0  *.8080                 *.*                    LISTEN     tcp46      0      0  *.8888                 *.*                    LISTEN     tcp46      0      0  *.49162                *.*                    LISTEN     USERtekiiMac-3:~ user$ netstat -a | grep tcp46tcp46      0      0  *.8009                 *.*                    LISTEN     tcp46      0      0  *.http-alt             *.*                    LISTEN     tcp46      0      0  *.ddi-tcp-1            *.*                    LISTEN     tcp46      0      0  *.49162                *.*                    LISTEN

可以知道：

tcp46      0      0  *.8080                 *.*                    LISTEN   tcp46      0      0  *.http-alt             *.*                    LISTEN