package com.moral.util;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Component;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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/**
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* @ClassName tokenUtils
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* @Description token生成、解析工具类
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* @Author 陈凯裕
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* @Date 2021/3/10 11:35
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* @Version TODO
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**/
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@Component
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@Slf4j
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public class TokenUtils {
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private static RedisTemplate redisTemplate;
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@Autowired
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@Qualifier("tokenRedisTemplate")
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public void setRedisTemplate(RedisTemplate redisTemplate) {
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TokenUtils.redisTemplate = redisTemplate;
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}
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//token有效期 单位：秒
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private static final int validity_time = 60*60*24*7;
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//token非法,生成错误
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public static final int error = -1;
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//token过期
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public static final int timeout = -2;
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//token有效，生成成功
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public static final int valid = 1;
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/**
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* @Description: 生成token
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* @Param: [type, uid] type： 后台取值：manage 前台取值：api
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* @return: java.lang.String
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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public static Map<String, Object> getToken(String uid, Map<String, Object> userInfo) {
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Map<String, Object> result = new HashMap<>();
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//生成加密token
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try {
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//生成token
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String token = TokenEncryptUtils.encoded(uid + "/" + System.currentTimeMillis() / 1000);
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//查询旧的token
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String oldToken = (String) redisTemplate.opsForHash().get("user_token", uid);
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if(oldToken!=null)
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redisTemplate.delete(oldToken);
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//新token写入到value中
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redisTemplate.opsForValue().set(token, userInfo);
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redisTemplate.expire(token, validity_time, TimeUnit.SECONDS);
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//新token写入到Hash中
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redisTemplate.opsForHash().put("user_token",uid,token);
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result.put("code", valid);
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result.put("token",token);
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}catch (Exception e){
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e.printStackTrace();
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log.error(e.getMessage());
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result.put("code",error);
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}
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return result;
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}
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/**
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* @Description: 校验token
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* @Param: [type, token] type： 后台取值：manage 前台取值：api
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* @return: java.util.Map<java.lang.String , java.lang.Object>
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* @Author: 陈凯裕
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* @Date: 2021/3/10
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*/
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public static Map<String, Object> checkToken( String token) {
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Map<String, Object> result = new HashMap<>();
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try {
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String[] tokenArray = TokenEncryptUtils.decoded(token).split("/");
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//校验token是否合法
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if (tokenArray.length != 2) {
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result.put("code", error);
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result.put("msg", "无效的token");
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return result;
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}
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//校验token是否过期
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int tokenTime = Integer.parseInt(tokenArray[1]);
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if ((System.currentTimeMillis() / 1000) - tokenTime > validity_time) {
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result.put("code", timeout);
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result.put("msg", "登陆身份已过期，请重新登陆");
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return result;
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}
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result.put("code", valid);
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return result;
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} catch (Exception e) {
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log.error("token工具类校验token异常" + e.getMessage());
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result.put("code", error);
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result.put("msg", "无效的token");
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return result;
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}
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}
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//通过token获取用户信息
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public static Map<String, Object> getUserInfoByToken(String token) {
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Map<String, Object> userInfo = (Map<String, Object>) redisTemplate.opsForValue().get(token);
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return userInfo;
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}
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}
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