1 package day2016_10_25_Thread;
2
3 import java.util.LinkedList;
4 import java.util.Random;
5
6 public class Productor {
7 public static void main(String[] args) throws InterruptedException {
8
9 //多个容器
10 Box box = new Box();
11 Box box2 = new Box();
12
13 //解决生产者，消费者，容器共用一个对象锁的问题
14 Object obj=new Object();
15 Producter p = new Producter(box, box2,obj);
16 Customer c = new Customer(box, box2,obj);
17
18 Thread tp = new Thread(p, "productor");
19 Thread tc = new Thread(c, "consumer");
20
21 tp.start();
22 tc.start();
23
24 Thread.sleep(3000);
25 System.out.println(box.size() + "--------------------" + box2.size());
26 }
27 }
28
29 class Producter implements Runnable {
30 Object obj;
31 Box box1;
32 Box box2;
33
34 Producter(Box box1, Box box2,Object obj) {
35 this.box1 = box1;
36 this.box2 = box2;
37 this.obj=obj;
38 }
39
40 @Override
41 public void run() {
42
43 System.out.println(Thread.currentThread().getName());
44
45 for (int i = 0; i < 30; i++) {
46 synchronized (obj) {
47 obj.notify();
48 if(i==49){
49 System.out.println("生产者30次循环结束！");
50 }
51 if (box1.size() >= 10 && box2.size() >= 10) {
52 try {
53 obj.wait(); // 本线程等待
54 } catch (InterruptedException e) {
55 e.printStackTrace();
56 }
57 } else if (box1.size() >= 10 && box2.size() < 10) {
58 box2.push(new Bread("bread-" + i));
59 System.out.println(Thread.currentThread().getName()
60 + "-> box2 : " + box2.size());
61 } else if (box1.size() < 10 && box2.size() >= 10) {
62 box1.push(new Bread("bread-" + i));
63 System.out.println(Thread.currentThread().getName()
64 + "-> box1 : " + box1.size());
65 } else {
66 Random ran = new Random();
67 int num = ran.nextInt(2);
68 if (num == 0) {
69 box1.push(new Bread("bread-" + i));
70 System.out.println(Thread.currentThread().getName()
71 + "-> box1 : " + box1.size());
72 } else {
73 box2.push(new Bread("bread-" + i));
74 System.out.println(Thread.currentThread().getName()
75 + "-> box2 : " + box2.size());
76 }
77 }
78 }
79 }
80
81 }
82 }
83
84 class Customer implements Runnable {
85 Object obj;
86 Box box1;
87 Box box2;
88
89 Customer(Box box1, Box box2,Object obj) {
90 this.box1 = box1;
91 this.box2 = box2;
92 this.obj=obj;
93 }
94
95 @Override
96 public void run() {
97
98 System.out.println(Thread.currentThread().getName());
99
100 for (int i = 0; i < 30; i++) {
101 synchronized (obj) {
102 obj.notify();
103 if(i==49){
104 System.out.println("消费者30次循环结束！");
105 }
106 if (box1.size() <= 3 && box2.size() <= 3) {
107 try {
108 obj.wait();
109 } catch (InterruptedException e) {
110 e.printStackTrace();
111 }
112 } else if (box1.size() <= 3 && box2.size() > 3) {
113 Bread b2 = box2.pop();
114 System.out.println(Thread.currentThread().getName()
115 + "-> box2 : " + b2);
116 } else if (box1.size() > 3 && box2.size() <= 3) {
117 Bread b1 = box1.pop();
118 System.out.println(Thread.currentThread().getName()
119 + "-> box1 : " + b1);
120 } else {
121 Random ran = new Random();
122 int num = ran.nextInt(2);
123 if (num == 0) {
124 Bread b1 = box1.pop();
125 System.out.println(Thread.currentThread().getName()
126 + "-> box1 : " + b1);
127 } else {
128 Bread b2 = box2.pop();
129 System.out.println(Thread.currentThread().getName()
130 + "-> box2 : " + b2);
131 }
132
133 }
134 }
135 }
136 }
137 }
138
139 class Box {
140 LinkedList<Bread> list = new LinkedList<Bread>();
141 int maxNum = 20;
142
143 public void push(Bread b) {
144 if (list.size() < maxNum) {
145 list.add(b);
146 }
147
148 }
149
150 public Bread pop() {
151 if (list.size() > 0) {
152 return list.remove();
153 }
154 return null;
155 }
156
157 public int size() {
158 return list.size();
159 }
160 }
161
162 class Bread {
163 private String sid;
164
165 Bread(String sid) {
166 this.sid = sid;
167 }
168
169 @Override
170 public String toString() {
171 return "sid= " + sid;
172 }
173
174 }
