黑馬旅遊網

各類坑啊

坑1：
Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.1:run (default-cli) on project travel: Could not start Tomcat
緣由:多是某個servlet的例如這個@WebServlet("category/*")寫錯了
坑2
引入resource下的druid.properties的時候必要
InputStream is = JDBCUtils.class.getClassLoader().getResourceAsStream("druid.properties");