jsp:useBean 형식
<jsp:useBean class="A" id="obj" scope="page"/>
- 클래스 객체생성 (영역:page, request, session, application)
|
start.jsp |
|
<%@ page language="java" contentType="text/html; charset=EUC-KR"
pageEncoding="EUC-KR"%>
<!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=EUC-KR">
<title>Insert title here</title>
</head>
<%--start.jsp --%>
<body>
<h3>나 스타트</h3>
<a href="forward_test.jsp">forward_test.jsp로 이동</a>
</body>
</html> |
|
forward_test.jsp |
|
<%@ page language="java" contentType="text/html; charset=EUC-KR"
pageEncoding="EUC-KR"%>
<jsp:useBean class="j0523.Person" id="p" scope="application"></jsp:useBean>
<%--j0523.Person p = new j0523.Person(); --%>
<!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=EUC-KR">
<title>Insert title here</title>
</head>
<%--foward_test.jsp --%>
<%
String str = "너무쉽다";
request.setAttribute("k", str);//저장:setAttribute(String 속성명(key), Object 속성값(value));
p.setName("홍길동");
p.setAge(13);
p.setJob("학생");
%>
<body>
<h3>forward테스트</h3>
<jsp:forward page="end.jsp"/>
</body>
</html> |
|
end.jsp |
|
<%@ page language="java" contentType="text/html; charset=EUC-KR"
pageEncoding="EUC-KR"%>
<jsp:useBean class="j0523.Person" id="p" scope="application"></jsp:useBean>
<!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=EUC-KR">
<title>Insert title here</title>
</head>
<%--end.jsp --%>
<body>
<%
out.print("이름:"+p.getName()+"<br>");
out.print("나이:"+p.getAge()+"<br>");
out.print("직업:"+p.getJob()+"<br>");
%>
<h3>나는 종착페이지</h3>
<%
String st = (String)request.getAttribute("k"); //저장
%>
STR=<%=st%>
</body>
</html> |
|
Person.java |
|
package j0523;
public class Person {
private String name;
private int age;
private String job;
public Person() {
System.out.println("기본생성자");
}
public Person(String name, int age, String job) {
super();
this.name = name;
this.age = age;
this.job = job;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getJob() {
return job;
}
public void setJob(String job) {
this.job = job;
}
} |
|
page |
|
|
|
request |
|
|
|
session |
|
브라우저 재시작 후에 end.jsp 실행 시 이름, 나이, 직업이 null,0,null |
