调用方法:
/**
* 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:
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
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。
/*
* 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();
}
}
