跨域请求

最新推荐文章于 2024-05-19 22:47:02 发布

原创最新推荐文章于 2024-05-19 22:47:02 发布 · 155 阅读

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CC 4.0 BY-SA版权

本文介绍了一种处理跨域请求的方法，并展示了如何在Java Spring框架中设置和操作Cookie，包括添加P3P头信息、设置HttpOnly属性以及通过重定向实现跨域链接跳转。

1、直接在页面修改链接

2、在执行跨域请求前，对请求进行处理。代码参考如下：

package com.databasesearch.web.controller;

import java.io.IOException;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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


@Controller
@RequestMapping("/test")
public class Test {
	
	@RequestMapping(value="/test.do")
	public void index(HttpServletRequest request,HttpServletResponse response, ModelMap map){
		
		response.addHeader("P3P", "CP=CAO PSA OUR");
		response.addHeader("SET-COOKIE", "JESSIONID="+request.getSession().getId()+ "; HttpOnly");
		Cookie cookie = new Cookie("JESSIONID",request.getSession().getId());
		cookie.setPath(request.getContextPath());
		response.addCookie(cookie);
		
		try {
			String url = "http://"+request.getServerName();
			int port = request.getServerPort();
			if(port != 80){
				url += ":"+port;
			}
			String serverName = request.getContextPath();
			if(serverName != null && !"".equals(serverName)){
				url += serverName;
			}
			url += "/jzSearch.do";
			response.sendRedirect(url);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}