Java调用bat文件

自动获取管理员权限命令

@echo off
mode con lines=30 cols=60
%1 mshta vbscript:CreateObject("Shell.Application").ShellExecute("cmd.exe","/c %~s0 ::","","runas",1)(window.close)&&exit
cd /d "%~dp0"
pause

批量创建环境变量

@echo off 
wmic ENVIRONMENT where "name='JRE64_HOME'" delete
wmic ENVIRONMENT where "name='TC_JRE_HOME'" delete
wmic ENVIRONMENT create name="TC_JRE_HOME",username="<system>",VariableValue="C:\Java\jre7"
wmic ENVIRONMENT create name="JRE64_HOME",username="<system>",VariableValue="C:\Java\jre7"
pause

批量编辑hosts文件

@echo off 
set stHosts=192.168.1.20 plm20
echo.>>%SystemRoot%\system32\drivers\etc\hosts
FOR /F "eol=# tokens=1 delims=" %%i in (%SystemRoot%\system32\drivers\etc\hosts) do if "%stHosts%"=="%%i" exit  
echo %stHosts%>> %SystemRoot%\system32\drivers\etc\hosts
pause

Java生成并调用bat文件

public void setbat() {
		String cmd = "@echo off\r\n" + "ipconfig/all\r\n" + "pause";
		String url = ".\\查看ip.bat";
		FileWriter fw = null;
		try {
			// 生成bat文件
			fw = new FileWriter(url);
			fw.write(cmd);
			fw.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
		try {
			// 运行bat文件
			Process process = Runtime.getRuntime().exec(url);
			InputStream in = process.getInputStream();
			String line;
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			while ((line = br.readLine()) != null) {
				System.out.println(line);
			}
			in.close();
			process.waitFor();
			System.out.println("执行成功");
		} catch (Exception e) {
			System.out.println("执行失败");
		}
	}