饶钱树

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关于异步两次进入preHandler可以参考这个解决方案: https://stackoverflow.com/questions/26995395/spring-mvc-interceptorhandler-called-twice-with-deferredresult

![image](https://user-images.githubusercontent.com/7897522/42123324-8c0b2988-7c82-11e8-94e5-854e0216bc91.png) 将SqlTemplate.class.getResourceAsStream("script-1.0.dtd") 改成 SqlTemplate.class.getClassLoader().getResourceAsStream("script-1.0.dtd") 试试