struts2—Error message的显示
//@Override
public void validateDoLogin() {
if(null == loginname || loginname.isEmpty()){
addFieldError(“loginname”, “登录名不能为空!”);
this.addActionError(“处理动作失败!”);
}else if(null == loginpwd || loginpwd.isEmpty())
addFieldError(“loginpwd”, “密码不能为空!”);
else if( ! “admin”.equals(getLoginname())){
addFieldError(“loginname”, “登录名不正确!”);
}else if(! “pwd”.equals(getLoginpwd())){
addFieldError(“loginpwd”, “密码不正确!”);
}
}
<%@ taglib uri=”/struts-tags” prefix=”s”%>
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>
<html>
<head> <title>login</title> </head>
<body>
<s:actionerror/>
<s:actionmessage/>
<form action=”login_login.action” method=”post”>
user Name：<input name=”loginname” type=”text” value=”admin”><s:fielderrorfieldName=”loginname” />
<br>
pwd：<input type=”password” name=”loginpwd” value=”pwd”><s:fielderror fieldName=”loginpwd” /><br>
<input type=”submit” value=”submit”>
</form>
</body>
</html>