html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<th:block th:if="${#strings.length(data.message) != 0}">
<script>
top.alert("[[${data.message}]]");
</script>
</th:block>
<th:block th:if="${#strings.length(data.href) != 0}">
<script>
top.location.href = '[[${data.href}]]';
</script>
</th:block>
</head>
</html>
alert message class
@Getter
@Setter
public class Message {
String message = "";
String href = "";
public Message(String message, String href) {
this.message = message;
this.href = href;
}
}
Controller
@PostMapping(value = "/validCheck")
public ModelAndView validCheck(@ModelAttribute @Valid MemberDto memberDto, ModelAndView mav){
mav.addObject("data", new Message("alret Message", "/view/main"));
mav.setViewName("view/Message");
return mav;
}
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