1 private ReadWriteLock readWriteLock = new ReentrantReadWriteLock();
2 private Lock r = readWriteLock.readLock();
3 private Lock w = readWriteLock.writeLock();
4
5 // 读操作上读锁
6 public Data get(String key) {
7 r.lock();
8 try {
9 // TODO 业务逻辑
10 }finally {
11 r.unlock();
12 }
13 }
14
15 // 写操作上写锁
16 public Data put(String key, Data value) {
17 w.lock();
18 try {
19 // TODO 业务逻辑
20 }finally {
21 w.unlock();
22 }
23 }