Java Code之线程与同步(一)

模拟一个实例，用一个线程负责写数据，一个线程负责读数据，清单如下：

Java代码

1. FileManager.java 负责读和写的具体实现
2. Main.java 主类，入口
3. TaskThread.java 自定义线程类
4. TaskRead.java 读任务
5. TaskWrite.java 写任务

FileManager.java 负责读和写的具体实现
Main.java 主类，入口
TaskThread.java 自定义线程类
TaskRead.java 读任务
TaskWrite.java 写任务

FileManager.java

Java代码

1. package com.iteye.badpie.javacode.thread.sync;
3. import java.util.Random;
5. public class FileManager {
7. private Random mRandom;
8. private String mName = "默认名字";
9. private String mEmail = "默认电子邮件";
11. public FileManager() {
12. mRandom = new Random();
13. }
15. public void write(String id, String name, String email) {
16. mName = name;
17. try {
18. Thread.sleep(getRandomInt());
19. } catch (InterruptedException e) {
20. e.printStackTrace();
21. }
22. mEmail = email;
23. System.out.println(String.format("写数据 id:%s, name:%s, email:%s", id, name, email));
24. }
26. public void read(String id) {
27. try {
28. Thread.sleep(getRandomInt());
29. } catch (InterruptedException e) {
30. e.printStackTrace();
31. }
32. System.out.println(String.format("读数据 id:%s, name:%s, email:%s", id, mName, mEmail));
33. }
35. private int getRandomInt() {
36. return mRandom.nextInt(2000);
37. }
39. }

package com.iteye.badpie.javacode.thread.sync;

import java.util.Random;

public class FileManager {

    private Random mRandom;
    private String mName = "默认名字";
    private String mEmail = "默认电子邮件";

    public FileManager() {
        mRandom = new Random();
    }

    public void write(String id, String name, String email) {
        mName = name;
        try {
            Thread.sleep(getRandomInt());
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        mEmail = email;
        System.out.println(String.format("写数据 id:%s, name:%s, email:%s", id, name, email));
    }

    public void read(String id) {
        try {
            Thread.sleep(getRandomInt());
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(String.format("读数据 id:%s, name:%s, email:%s", id, mName, mEmail));
    }

    private int getRandomInt() {
        return mRandom.nextInt(2000);
    }

}