this.httpServer = HttpServer.create(new InetSocketAddress("0.0.0.0", 8080), 0, "/", this);

我换了好几个jdk版本都没有接收这种参数的create(), 后面查了下才发现.应该是

this.httpServer = HttpServer.create(new InetSocketAddress("0.0.0.0", 8080), 0);
this.httpServer.createContext("/", this);