ThreadLocal大概结构是什么？

ThreadLocal的大概结构是由一个ThreadLocalMap类来实现的，它是ThreadLocal的内部类。ThreadLocalMap是一个键值对的数据结构，其中键是ThreadLocal对象，值是与每个线程相关联的值。每个线程都有一个threadLocals的成员变量，其本质就是一个ThreadLocalMap对象。ThreadLocalMap中保存了每个线程所维护的ThreadLocal对象及其对应的值。这样，每个线程可以独立地访问和修改自己的ThreadLocal对象的值，而不会对其他线程产生影响。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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