target is null for setProperty(null, "username", [Ljava.lang.String;@c06258)问题
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需要把动态方法调用这个常量设成true
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
不过默认就是true
我从struts2的demo里面拷出来的时候,他设置的是false,
这个问题折磨了我2小时,网上的其他童鞋说是<constant name="struts.devMode" value="true" />的原因
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