Java 多线程简单例子

我会带着你远行 2022-07-14 10:39 213阅读 0赞

因为工作需要，需要在同一时间执行多次某个操作，看看是否会引起数据的deadlock文件。

多线程具体执行类

package com.ericyang.test.cmdline; import java.util.List; import java.text.SimpleDateFormat; import java.text.DateFormat; import java.util.Date; class ThreadClass extends xxxTestBase implements Runnable\{ private static String\[\] Import\_args; public ThreadClass(String\[\] args)\{ Import\_args = args; \} public void run() \{ SimpleDateFormat bartDateFormat = new SimpleDateFormat("EEEE-MMMM-dd-yyyy"); DateFormat shortDateFormat = DateFormat.getDateTimeInstance( DateFormat.SHORT, DateFormat.SHORT); Date date = new Date(); System.out.println(bartDateFormat.format(date)); System.out.println("Thread starting time:"+shortDateFormat.format(date)); try \{ runCmd(Import\_args); \}catch (Exception ex) \{ System.out.println(ex.getMessage()); \} System.out.println("Thread ending time:"+shortDateFormat.format(date)); \} \}

/\*xxxTestBase 是我的一个执行基类，它有函数 runCmd(Import\_args);可以具体执行一些命令行操作\*/  
/\*\* \* ConcurrentExecClass.java version 1.0 March 5, 2010 \*/ package com.ericyang.test.cmdline; import com.ericyang.test.cmdline.ThreadClass; /\* \* @author Eric Yang \* \*/ public class ConcurrentBfimortProjEnvFltFullTest extends xxxTestBase \{ private static final String IMPORT\_FILE = TestConstants.BF\_TEST\_SRC\_DIR + "/etc/bf7112\_auto\_bf\_p\_I\_f\_e\_01.xml"; private static final String IMPORT\_FILE2 = TestConstants.BF\_TEST\_SRC\_DIR + "/etc/bf7112\_auto\_bf\_p\_env\_05.xml"; private static final String IMPORT\_FILE3 = TestConstants.BF\_TEST\_SRC\_DIR + "/etc/bf7112\_flt\_include4.xml"; private static ExecutionResults execResults = null; /\*\* \* This method will perform any type of \* set up. \* \* @throws Exception Any kind of exception \*/ public void runMultiCmd() throws Exception \{ String\[\] args = \{"-U", "yq", "-P", "qq", "-x", IMPORT\_FILE, "-p", "-I", "-e", "-f"\}; ThreadClass t = new ThreadClass(args); Thread thread = new Thread(t); thread.start(); String\[\] args2 = \{"-U", "yq1", "-P", "qq", "-x", IMPORT\_FILE2, "-p",\}; ThreadClass t2 = new ThreadClass(args2); Thread thread2 = new Thread(t2); thread2.start(); String\[\] args3 = \{"-U", "yq2", "-P", "qq", "-x", IMPORT\_FILE3, "-p",\}; ThreadClass t3 = new ThreadClass(args3); Thread thread3 = new Thread(t3); thread3.start(); \} \}

每个需要多线程执行类似的命令行的都可以以上方式执行。