一，Action-驱动模型
Action：
public Object getModel() {
// TODO 自动生成的方法存根
student.setId(1);
student.setName("张三");
return student;
}取值：
<s:property value="name" />
<s:property value="id" />二，Action-JavaBean
Action:
public class OGNLAction extends ActionSupport {
private Student student;
public OGNLAction() {
student = new Student();
student.setId(1);
student.setName("张三");
}
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public String execute() throws Exception {
return SUCCESS;
}
}取值：
#两种方法
<s:property value="student.id" />
<s:property value="student['id']" />
<s:property value="student.name" />
<s:property value="student['name']" />
三，Action-属性内置
Action：
public class OGNLAction extends ActionSupport {
private String name;
private String id;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public OGNLAction() {
name = "tom";
id = "1";
}
public String execute() throws Exception {
return SUCCESS;
}
}
取值：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<s:property value="name" />
<s:property value="id" />
</body>
</html>四，集合类型
Action:
ServletActionContext.getServletContext().setAttribute("booklist", book_list3);
//将数组丢到Application或Session中取值：
<s:iterator value="#application['booklist']">或者<s:iterator value="#application.booklist">
<s:property value="BookId" />
<s:property value="BookName" />
<s:property value="author" />
</s:iterator>