Caused by: com.opensymphony.xwork2.config.ConfigurationException: Action class [cn.com.action.Produc
com.opensymphony.xwork2.config.ConfigurationException: Unable to load configuration.
Caused by: com.opensymphony.xwork2.config.ConfigurationException: Action class [cn.com.action.Product] does not have a public no-arg constructor
Caused by: java.lang.NoSuchMethodException: cn.com.action.Product.<init>()
我是struts2的初學者,剛學就出現這個錯誤!
原因:
類裡面缺少無參的建構函式!
如果一個類裡面沒有任何建構函式,預設是無參的;
如果一個類裡面有一個有引數的建構函式,預設的無參建構函式就會被覆蓋掉
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