5. thymeleaf获取作用域中对象的数据和URL表达式

一 获取作用域中对象的数据

  1. 创建congtroller
@RequestMapping("/show5")
	public String showInfo5(HttpServletRequest request ,Model model) {
		request.setAttribute("req", "HttpServletRequest");
		request.getSession().setAttribute("sess", "HttpSession");
		request.getSession().getServletContext().setAttribute("con", "contenxt");
		return "index5";
	}

2.编写index5

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
request:<span th:text="${#httpServletRequest.getAttribute('req')}"></span>
session:<span th:text="${session.sess}"></span>
Context:<span th:text="${application.con}"></span>
</body>
</html>

二 URL表达式

  1. 创建controller
package com.synda.controller;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * thymeleaf-URL
 * @author admin
 *
 */
@Controller
public class DemoController {
	
	@RequestMapping("/{page}")
	public String showInfo(@PathVariable String page ,String id) {
		System.out.println(id);
		return page;
	}
}

2 . 页面

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>thymeleaf-URL</title>
</head>
<body>
<a th:href="@{http://www.baidu.com}">绝对路径</a>
<a href="http://www.baidu.com">绝对路径</a>
<!-- 相对于上下文的相对路径 -->
<a th:href="@{/show}">相对路径-相对于当前项目的根</a>
<a th:href="@{~/project2/resourcename}">相对于服务器路径的根</a>
<!-- 两个参数则在中间加逗号 -->
<a th:href="@{/show(id=1,name='chsn')}">参数传递</a>
<!--  -->
</body>
</html>
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