调用方法:
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/** * 点击量/月(年)Thread */ public void yearlyClickThread() { // 获取参数 String year = getPara("year"); // 统计数据集X List<String> xList = new ArrayList<String>(); xList.add("January"); xList.add("February"); xList.add("March"); xList.add("April"); xList.add("May"); xList.add("June"); xList.add("July"); xList.add("August"); xList.add("September"); xList.add("October"); xList.add("November"); xList.add("December"); // 统计数据集Y List<Integer> yList = new ArrayList<Integer>(); // 统计线程状态 List<Thread> threadList = new ArrayList<Thread>(); // 线程状态码 int threadStatusCode = 0; // 计数器 int count = 0; // 每月的日志分析 for (int m = 1; m <= 12; m++) { // 收集日期参数 List<String> dateList = new ArrayList<String>(); // String date = ""; // 判断有多少天 int days = CalendarUtil.weekForMonth(Integer.valueOf(year), m); // 组合日期 for (int i = 1; i <= days; i++) { if (i <= 9) { if (m <= 9) { date = year + "-0" + m + "-0" + i; } else { date = year + "-" + m + "-0" + i; } } else { if (m <= 9) { date = year + "-0" + m + "-" + i; } else { date = year + "-" + m + "-" + i; } } dateList.add(date); } // 启动线程 Thread thread = new ReadLogFileThreadByYear(dateList); thread.start(); try { // 休眠 Thread.sleep(1000L); } catch (InterruptedException e) { e.printStackTrace(); } threadList.add(thread); } // 获取线程状态 for (Thread t : threadList) { if (t.getState().toString().equals("TERMINATED")) { threadStatusCode += 1; } } // 判断线程是否都执行完毕 if (threadStatusCode == 12) { // 接收参数 // List<Map<String, Object>> list = ReadLogFileThread.list.subList(0, 12); List<Map<String, Object>> list = ReadLogFileThreadByYear.list; // 设置参数 for (int p = 0; p < list.size(); p++) { count += (int) list.get(p).get("clickCount"); if (list.get(p).get("month").equals("01")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("02")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("03")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("04")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("05")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("06")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("07")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("08")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("09")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("10")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("11")) { yList.add((Integer) list.get(p).get("clickCount")); } else if (list.get(p).get("month").equals("12")) { yList.add((Integer) list.get(p).get("clickCount")); } } } setAttr("totalCount", count); setAttr("x", xList); setAttr("y", yList); renderJson(); } |
线程方法:
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package com.ninemax.util.loganalysis;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import com.ninemax.util.loganalysis.tool.ConstantUtil;/** * 多线程无返回值 * * @author Darker * */public class ReadLogFileThreadByYear extends Thread { // 日期数组 private List<String> clickDate; // 共享数据 public static List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); public ReadLogFileThreadByYear(List<String> clickDate) { this.clickDate = clickDate; } /** * 读取点击日志文件 * * 例子:article.click.2016-05-20.txt * * @return */ public void run() { // 接收参数 Map<String, Object> map = new HashMap<String, Object>(); // 利用FileInputStream读取文件信息 FileInputStream fis = null; // 利用InputStreamReader进行转码 InputStreamReader reader = null; // 利用BufferedReader进行缓冲 BufferedReader bufReader = null; // 利用StringBuffer接收文件内容容器 StringBuffer buf = new StringBuffer(); // 点击量/月 int monthClick = 0; for (int i = 0; i < clickDate.size(); i++) { // 获取文件 File clickLogFile = new File(ConstantUtil.LOGLOCATION, "article.click."+ clickDate.get(i) + ".txt"); // 判断文件是否存在 if (!clickLogFile.exists() || clickLogFile.isDirectory()) { System.err.println(clickDate.get(i) + "的文件不存在..."); } else { try { // 节点流 fis = new FileInputStream(clickLogFile); // 转换流 reader = new InputStreamReader(fis, "utf-8"); // 处理流 bufReader = new BufferedReader(reader); // 计数器 int count = 0; // 按行读取 String line = ""; // 读取文件 while ((line = bufReader.readLine()) != null) { count++; // 接收数据 if (!line.equals(null) && !line.equals("")) { buf.append(line + "\n"); } } if (count == 0) { count = 0; } else { count = count - 1; } monthClick += count; } catch (Exception e) { e.printStackTrace(); } finally { // 关闭流 try { bufReader.close(); reader.close(); fis.close(); } catch (IOException e) { e.printStackTrace(); } } } } map.put("month", clickDate.get(0).subSequence(5, 7)); if(monthClick==0){ map.put("clickCount", 0); }else{ map.put("clickCount", monthClick); } // map.put("clickContent", buf.toString()); list.add(map); } } |
同样给大家分享下网友的实例
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package JavaThread;class firstThread extends Thread{ private String name = null; public firstThread(String str) { this.name = str; } public void run() { for(int i=1;i<=3;i++) { System.out.println("线程"+this.name+"第"+i +"执行"); try { Thread.sleep(50); } catch (InterruptedException e) { e.printStackTrace(); } } }}class secondThread extends Thread{ private String name = null; public secondThread(String s) { this.name = s; } public void run() { for(int i=1;i<=3;i++) { System.out.println("线程"+this.name+"第"+i +"执行"); try { Thread.sleep(50); Thread.yield(); } catch (InterruptedException e) { e.printStackTrace(); } } }}public class TestThread{ public static void main(String[] args) { firstThread p = new firstThread("first"); secondThread pth = new secondThread("second"); p.setPriority(4); pth.setPriority(9); p.start(); pth.start(); }} |
简单讲下继承Thread类
步骤：
a，定义类继承Thread类。
b，覆盖Thread类中的run方法，将需要被多线程执行的代码定义到该run方法当中。
c，建立Thread类的子类创建线程对象。
d，调用start方法，开启线程并调用该线程的run方法。
下面有个示例来让你直观的了解怎么用继承Thread类的方式来创建线程。
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/** 示例：创建三个线程，每过2秒打印一下线程的名称，打印三次*/public class Thread1 extends Thread{ private final int MAX = 3;//最大打印次数 private int COUNT = 1;//计数 private final int TIME = 2;//间隔时间 //接收线程名称 public Thread1(String name) { super(name); } //覆盖run方法，在里面写我们要执行的代码 public void run() { while(COUNT<= MAX){ System.out.println(this.getName()); COUNT++; //每次打印后，在一段时间后再打印 try { Thread.sleep(TIME*1000); } catch (InterruptedException e) { e.printStackTrace(); } } } public static void main(String[] args) { Thread1 t1 = new Thread1("线程1");//创建线程 Thread1 t2 = new Thread1("线程2"); Thread1 t3 = new Thread1("线程3"); t1.start(); //开启线程 t2.start(); t3.start(); //也可以使用下面这种方式书写 //new Thread1("线程4").start(); }} |
