package com.hanyixin.service; public interface SecurityService { //密钥提供者微服创建接口 String getkey(); }
package com.hanyixin.service.impl; import java.util.Random; import org.apache.dubbo.config.annotation.Service; import com.hanyixin.service.SecurityService; @Service(interfaceClass = SecurityService.class) public class SecurityServiceImpl implements SecurityService { @Override public String getkey() { Random random = new Random(); String s = ""; //密钥提供者微服随机生成16位密钥字符串 for (int i = 0; i < 16; i++) { char c = (char) ('a'+random.nextInt(26)); s += c; } return s; } }
package com.hanyixin.controller; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.dubbo.config.annotation.Reference; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.hanyixin.service.SecurityService; @Controller public class SecurityController { @Reference SecurityService securityService; //密钥请求微服创建controller @RequestMapping("tojsp") public String tojsp() { //跳转到页面 return "jsp"; } //密钥请求微服的controller能够获取密钥 @ResponseBody //加载时自动发送ajax请求 @RequestMapping("getkey") public String getkey(HttpServletRequest request,HttpServletResponse response){ String key = securityService.getkey(); //将密钥存入localStorag或cookie中 response.addCookie(new Cookie("mycookiekey",key)); return key; } }
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <!-- 引入 css --> <link rel="stylesheet" type="text/css" href="/resource/bootstrap4/css/bootstrap.css"> <!-- 引入js --> <script type="text/javascript" src="/resource/jquery/jquery-3.4.1.js"></script> <title>Insert title here</title> </head> <body> <script type="text/javascript"> function getkey() { alert("准备获取key"); $.post("getkey",{},function(data){ alert("获取到的key是"+data); }) } getkey(); </script> </body> </html>