如何使用appId和appSecret获取accessToken以实现接口授权访问后端API？

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功能点+（1）申请获取appId和appSecret；（2）通过appId和appSecret获取accessToken；（3）使用MySQL和Redis进行key-value键值对存储；（4）对需要的接口url进行地址拦截；效果图：+（1）获取必要的appId和appSecret；（2）利用appId和appSecret获取accessToken；（3）在MySQL和Redis中存储键值对；（4）拦截必要的接口url。

功能点

（1）申请获取appId和appSecret

（2）通过appId和appSecret获取accessToken

（3）mysql和redis进行key-value键值对存储

（4）对需要的接口url进行请求地址拦截

效果图：

（1）正确的accessToken且没有过期（获取后端数据）

（2）没有填入的accessToken(提示为空)

（3）accessToken正确但是已经过了TTL时间（过期），redis进行数据删除。

（4）默认是7200s

具体实现:

(1)数据库

/* Navicat Premium Data Transfer Source Server : 本机 Source Server Type : MySQL Source Server Version : 50738 (5.7.38-log) Source Host : localhost:3306 Source Schema : coupon Target Server Type : MySQL Target Server Version : 50738 (5.7.38-log) File Encoding : 65001 Date: 20/03/2023 10:55:04*/SET NAMES utf8mb4;SET FOREIGN_KEY_CHECKS = 0;-- ------------------------------ Table structure for m_app-- ----------------------------DROP TABLE IF EXISTS `m_app`;CREATE TABLE `m_app` ( `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键id', `app_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '所申请应用名称', `app_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT 'appId', `app_secret` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '秘钥', `is_flag` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '是否可用代表状态', `access_token` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '令牌', PRIMARY KEY (`id`) USING BTREE) ENGINE = InnoDB AUTO_INCREMENT = 38 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;-- ------------------------------ Records of m_app-- ----------------------------INSERT INTO `m_app` VALUES (20, '测试', '4xMTxI9p', 'd1124a2acbc0074900e436505ccfa049f9abaa2f', '0', '95818324c9e34ff89d07f99772dee10c');INSERT INTO `m_app` VALUES (21, '积分优惠券测试', 'W0wrjQ6C', '1bf37c433b627f9d2451d250916c866ee341de86', '0', '24e2fa591d9447c9b2745d84cda3c8da');INSERT INTO `m_app` VALUES (22, 'test', 'WS09OO3s', 'cfe6b77fb68f213dedeb59f51b1a4808bfdec394', '0', 'a48e4e98314d4fa390ab31d49dd7757e');INSERT INTO `m_app` VALUES (23, '123', 'tw9PDmTA', 'd35dd6ad355d6d85e8e9bb1682ea99952ca14d85', '0', '0c4734a413b54c86b8864e3f7aa87d60');INSERT INTO `m_app` VALUES (24, '12345', 'OchZx9yE', '18e5892a2b92c016078eac4d41b25c765588073477c25b42e2c6b75859960e59', '0', '11c624f4e5394f948542673c393a820b');INSERT INTO `m_app` VALUES (25, '1', 'qiKL6XKK', '9676fd0a49381cbdb3e86ad6547e58328594e349', '0', '7f15452ea17e4b9b9bddb3750952f787');INSERT INTO `m_app` VALUES (26, '2121', 'hrGqnHC7', '4b684d90573d4bbeb4e2c504b219b3429eacc4d4', '0', '5682c190b8b54fd4904c8bf007e8708e');INSERT INTO `m_app` VALUES (27, 'ghd', 'O5ELmevg', '0b45dead09e8195053eaeb8b7451a953572bfed5', '0', '3e80b55f73a54a3895be87fe3d334eb3');SET FOREIGN_KEY_CHECKS = 1;

（2）实体类：

package com.coupon_test.coupon.model;import com.baomidou.mybatisplus.annotation.TableName;@TableName("m_app")public class AppEntity { private long id; private String appId; private String appName; private String appSecret; private String accessToken; private int isFlag; public long getId() { return id; } public void setId(long id) { this.id = id; } public String getAppId() { return appId; } public void setAppId(String appId) { this.appId = appId; } public String getAppName() { return appName; } public void setAppName(String appName) { this.appName = appName; } public String getAppSecret() { return appSecret; } public void setAppSecret(String appSecret) { this.appSecret = appSecret; } public String getAccessToken() { return accessToken; } public void setAccessToken(String accessToken) { this.accessToken = accessToken; } public int getIsFlag() { return isFlag; } public void setIsFlag(int isFlag) { this.isFlag = isFlag; } @Override public String toString() { return "AppEntity [id=" + id + ", appId=" + appId + ", appName=" + appName + ", appSecret=" + appSecret + ", accessToken=" + accessToken + ", isFlag=" + isFlag + "]"; }}

（3）mapper层：

package com.coupon_test.coupon.dao;import com.baomidou.mybatisplus.core.mapper.BaseMapper;import com.coupon_test.coupon.model.AppEntity;import org.apache.ibatis.annotations.Param;import org.apache.ibatis.annotations.Select;import org.apache.ibatis.annotations.Update;public interface AppMapper extends BaseMapper<AppEntity> { @Select("SELECT ID AS ID ,APP_NAME AS appName, app_id as appId, app_secret as appSecret ,is_flag as isFlag , access_token as accessToken from m_app " + "where app_id=#{appId} and app_secret=#{appSecret} ") AppEntity findApp(AppEntity appEntity); @Select("SELECT ID AS ID ,APP_NAME AS appName, app_id as appId, app_secret as appSecret ,is_flag as isFlag access_token as accessToken from m_app " + "where app_id=#{appId} and app_secret=#{appSecret} ") AppEntity findAppId(@Param("appId") String appId); @Update(" update m_app set access_token =#{accessToken} where app_id=#{appId} ") int updateAccessToken(@Param("accessToken") String accessToken, @Param("appId") String appId); }

（4）工具类，main方法可以进行测试。

package com.coupon_test.coupon.utils;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;import java.util.Arrays;import java.util.UUID;/** * @Title: AppUtils * @Description: 随机产生唯一的app_key和app_secret * @date 2023-02-15 */public class AppUtils { //生成 app_secret 密钥 private final static String SERVER_NAME = "积分优惠券系统"; private final static String[] chars = new String[]{"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}; /** * @Description: <p> * 短8位UUID思想其实借鉴微博短域名的生成方式，但是其重复概率过高，而且每次生成4个，需要随即选取一个。 * 本算法利用62个可打印字符，通过随机生成32位UUID，由于UUID都为十六进制，所以将UUID分成8组，每4个为一组，然后通过模62操作，结果作为索引取出字符， * 这样重复率大大降低。 * 经测试，在生成一千万个数据也没有出现重复，完全满足大部分需求。 * </p> * @date 2023-02-15 */ public static String getAppId() { StringBuffer shortBuffer = new StringBuffer(); String uuid = UUID.randomUUID().toString().replace("-", ""); for (int i = 0; i < 8; i++) { String str = uuid.substring(i * 4, i * 4 + 4); int x = Integer.parseInt(str, 16); shortBuffer.append(chars[x % 0x3E]); } return shortBuffer.toString(); } /** * <p> * 通过appId和内置关键词生成APP Secret * </P> * * @date 2023-02-15 */ public static String getAppSecret(String appId) { try { String[] array = new String[]{appId, SERVER_NAME}; StringBuffer sb = new StringBuffer(); // 字符串排序 Arrays.sort(array); for (int i = 0; i < array.length; i++) { sb.append(array[i]); } String str = sb.toString(); MessageDigest md = MessageDigest.getInstance("SHA-256"); md.update(str.getBytes()); byte[] digest = md.digest(); StringBuffer hexstr = new StringBuffer(); String shaHex = ""; for (int i = 0; i < digest.length; i++) { shaHex = Integer.toHexString(digest[i] & 0xFF); if (shaHex.length() < 2) { hexstr.append(0); } hexstr.append(shaHex); } return hexstr.toString(); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); throw new RuntimeException(); } } public static void main(String[] args) { String appId = getAppId(); System.out.println(appId); System.out.println(getAppSecret(appId)); }}

（5）请求拦截

package com.coupon_test.coupon.config;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.mvnrepository.com/artifact/com.alibaba/fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.56</version> </dependency><!--字符串操作--> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.2.1</version> </dependency>

先使用controller获取appId及appSecret,接着申请accessToken并带至请求中，获取返回数据。

(二)、将请求的http协议改为https

效果图：postman测试

首先必须的依赖是

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId></dependency><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId></dependency>

使用命令获取SSL文件

keytool -genkey -alias tomcat -storetype PKCS12 -keyalg RSA -keysize 2048 -keystore keystore.p12 -validity 3650

application.yml文件配置

server: port: 8081 ssl: enabled: true key-store: classpath:keystore.p12 key-store-type: PKCS12 key-alias: tomcat key-store-password: caojun

注意是key-store-password