url="jdbc:mysql://192.169.1.201:3306/raker?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"
xml中&必须写成&
url="jdbc:mysql://192.169.1.201:3306/raker?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"