Java的Runtime.getRuntime().exec(commandStr)可以调用执行cmd指令。 cmd /c dir 是执行完dir命令后封闭命令窗口。 cmd /k dir 是执行完dir命令后不封闭命令窗口。 cmd /c start dir 会打开一个新窗口后执行dir指令,原窗口会封闭。 cmd /k start dir 会打开一个新窗口后执行dir指令,原窗口不会封闭。 可...
jdbc.SQLServerStatement$StmtExecCmd.doExecute(SQLServerStatement.java:759) at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7240) at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2869) at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(...
public static boolean firstCmd() throws IOException { Process process = null; String command = "D:\\platform-tools\\adb connect 127.0.0.1:7555"; //sdk所在位置 process = Runtime.getRuntime().exec(command); InputStreamReader ir = new InputStreamReader(process.getInputStream()); try { LineN...
业务框架是游戏框架的一部分,职责是简化程序员的业务逻辑实现,业务框架使程序员能够快速的开始编写游戏业务。 业务框架对于每个 action (即业务的处理方法) 都是通过asm与 Singleton、Flyweight 、Command 等设计模式结合,对 action 的获取上通过 array 来得到,是一种近原生的方式。 单线程中,业务框架平均每秒可以执行...
Java™ SE Development Kit 7, Update 461 (JDK 7u461) - Restricted Release date: April 15, 2025 The full version string for this update release is 1.7.0_461-b06 (where "b" means "build"). The version number is 7u461. This JDK conforms to version 7.1 of the Java SE Specification ...
Please update D:\001_Develop\052_Hadoop\hadoop-3.3.4\etc\hadoop\hadoop-env.cmd ‘-Xmx512m’ is not recognized as an internal or external command, operable program or batch file. 报错信息如下 : C:\Windows\system32>hadoop -version
This command was runusing/D:/SoftWare/hadoop-2.6.0/share/hadoop/common/hadoop-common-2.6.0.jar C:\Users\lenovo> 解决办法(如果你的jdk是安装在非C盘) 则,压根不需修改hadoop-env.cmd。 比如如下你的安装在E:\software\jdk1.8 但是,如果你的jdk是比如安装在D盘下的Program Files,是D:\Program Files"...
请求:COMMAND_HEARTBEAT_REQ(13) 响应:COMMAND_HEARTBEAT_REQ(13) 6.关闭、退出请求消息结构 { "cmd":"命令码(14)int类型", "userId":"用户ID" } 请求:COMMAND_CLOSE_REQ(14) 响应:无 7.获取用户信息请求消息结构 { "cmd":"命令码(17)int类型", ...
当输入firewall-cmd --list-ports查看端口信息时报错 报错的原因可能是没有安装firewall,安装命令为:yum install firewalld 安装完毕后下面介绍一下firewalld的常用用法: 启动: systemctl start firewalld 停止运行: systemctl stop firewalld 查看状态: systemctl status firewalld ...
Statement$StmtExecCmd.doExecute(SQLServerStatement.java:759) at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7240) at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2869) at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServer...