Struts2表单验证xml后台提示“严重: Validation error for....”
按实验楼中的代码敲得,对了好几遍都是一样的,但一直无法达到在前台提示错误信息的效果,仅能在后台的控制台找到如下类似的信息:
严重: Validation error for user.name:user name cannot be empty!找了好久才知道,原来Action类中里要继承ActionSupport类才行。 如,将实验楼中源代码为:
public class ValidateAction { private User user; public User getUser() { return user; } public void setUser(User user) { this.user = user; } public String execute() { return "success"; } }需改为如下代码才可实现:
public class ValidateAction extends ActionSupport{ private User user; public User getUser() { return user; } public void setUser(User user) { this.user = user; } public String execute() { return "success"; } }
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