调试开启StrictMode，发现网络数据流未关闭导致App Crash！对高频使用TTS播报且长时间运行的App影响有OOM风险，影响较大

E/StrictMode: A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
java.lang.Throwable: Explicit termination method 'close' not called
at dalvik.system.CloseGuard.open(CloseGuard.java:180)
at java.net.AbstractPlainSocketImpl.create(AbstractPlainSocketImpl.java:103)
at java.net.Socket.createImpl(Socket.java:470)
at java.net.Socket.getImpl(Socket.java:536)
at java.net.Socket.shutdownOutput(Socket.java:1535)
at org.apache.http.impl.SocketHttpClientConnection.close(SocketHttpClientConnection.java:200)
at org.apache.http.impl.conn.DefaultClientConnection.close(DefaultClientConnection.java:166)
at org.apache.http.impl.conn.tsccm.AbstractConnPool.closeConnection(AbstractConnPool.java:325)
at org.apache.http.impl.conn.tsccm.ConnPoolByRoute.shutdown(ConnPoolByRoute.java:683)
at org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager.shutdown(ThreadSafeClientConnManager.java:261)
at org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager.finalize(ThreadSafeClientConnManager.java:110)
at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:222)
at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:209)
at java.lang.Thread.run(Thread.java:761)