理解jsp:declaration的另一种用法。

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.util.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>测试类是否能使用</title>
</head>
<body>
<%!public class PersonT {
private String name;
private int age;


public void setName(String name) {
this.name = name;
}


public String getName() {
return this.name;
}


public void setAge(int age) {
this.age = age;
}


public int getAge() {
return this.age;
}
}


public class ManT extends PersonT {


}


ManT man = new ManT();


//man.setAge(23);//错误
String getDate() {
//man.setAge(23);//第一次不显示,但是经过第二次就显示了
return new java.util.Date().toLocaleString();
}%>
<%
man.setAge(23);
man.setName("小湮没");
out.println("name: " + man.getName() + "\tage: " + man.getAge() + "\t当前时间: " + getDate());
%>
</body>
</html>

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转载自blog.csdn.net/jake_aaron/article/details/78635279
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