[多选题]下面关于jsp:setProperty说法中错误的是

A、jsp:setProperty用来设置已经实例化的Bean对象的属性
B、property属性表示要设置哪个属性
C、value属性用来指定Bean属性的值，且该属性必须存在
D、Param指定用哪个请求参数作为Bean属性的值

参考答案： A@#@B@#@D

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