问题
- 使用jstl 的el表达式 传递数据刷新页面，页面数据不显示，经过验证，数据的确传递过去，但是官方文档并没有详细描述，getModel（） 不需要设get set（） ，但是使用jstl el表达式必须设置
model 代码
package Model;
import java.util.List;
import com.jfinal.plugin.activerecord.Model;
import com.jfinal.plugin.activerecord.Page;
public class User extends Model<User> {
private int id;
private String name;
private String pwd;
public int getId() {
return id;
}
public String getName() {
return name;
}
public String getPwd() {
return pwd;
}
public void setId(int id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
/**
*
*/
private static final long serialVersionUID = 1L;
public final static User me = new User();
/*
* 删除用户
*/
public void delUser() {
// me.deleteById("1");
}
/*
* 普通无参数查询
*/
public List<User> queryUserList() {
List<User> find = me.find("select * from user where id>1");
return find;
}
/*
* 带参数查询
*/
public List<User> queryparamList() {
List<User> find = me.find("select * from user where id>?", 2);
return find;
}
/*
* 分页查询
*/
public Page<User> queryUserListpage() {
Page<User> page = me.paginate(1, 4, "select *",
" from user where id > ?", 2);
return page;
}
}
数据传递代码
public void pagejava(){
User user=getModel(User.class);
List<User> list = user.queryUserList();
System.out.println(list.toString());
setAttr("listname", list);
render("/pagelist.jsp");
}前端代码
<%@ page language="Java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page isELIgnored="false"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>??</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
</head>
<body>
sss
<c:forEach items="${listname}" var="list">
<label>${list.id}</label>
<label>${list.name}</label>
<label>${list.pwd}</label>
</c:forEach>
</body>
</html>可以正确显示数据