51工具盒子有两件事我最憎恶：没有信仰的博才多学和充满信仰的愚昧无知。------爱默生
使用了jdk默认序列化方式后报错，清除缓存后又换成了jackson序列化方式
结果还是报错SerializationException，提示我LocalDateTime没有默认构造器
既然我项目中mvc使用的fastJson配置过LocalDateTime的转换，那我就继续用fastJson进行拓展吧：
首先是配置FastJson
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | hljs java package com.ruben.xchat.config; import com.alibaba.fastjson.parser.ParserConfig; import com.alibaba.fastjson.serializer.SerializeConfig; import com.alibaba.fastjson.serializer.SerializerFeature; import com.alibaba.fastjson.support.config.FastJsonConfig; import com.ruben.xchat.handler.GlobalTimeResolver; import com.ruben.xchat.utils.Opt; import java.time.LocalDateTime; /** * FastJson配置 * * @author <achao1441470436@gmail.com> * @since 2021/10/9 12:42 */ public class FastJsonConfigHandler { /** * 配置 */ private static final FastJsonConfig FAST_JSON_CONFIG; static { FAST_JSON_CONFIG = new FastJsonConfig(); // 配置序列化策略 // ID_WORKER 生成主键太长导致 js 精度丢失 // JavaScript 无法处理 Java 的长整型 Long 导致精度丢失，具体表现为主键最后两位永远为 0，解决思路： Long 转为 String 返回 FAST_JSON_CONFIG.setSerializerFeatures(SerializerFeature.BrowserCompatible, // 处理序列化后出现$ref的坑 SerializerFeature.DisableCircularReferenceDetect, // 列化枚举值为数据库存储值 SerializerFeature.WriteEnumUsingToString); SerializeConfig serializeConfig = SerializeConfig.globalInstance; // 设置全局LocalDateTime转换 serializeConfig.put(LocalDateTime.class, (serializer, object, fieldName, fieldType, features) -> Opt.ofNullable(object).ifPresentOrElse(obj -> serializer.out.writeString(((LocalDateTime) obj).format(GlobalTimeResolver.DATE_TIME_FORMATTER)), serializer.out::writeNull)); FAST_JSON_CONFIG.setSerializeConfig(serializeConfig); ParserConfig parserConfig = ParserConfig.getGlobalInstance(); FAST_JSON_CONFIG.setParserConfig(parserConfig); } private FastJsonConfigHandler() { } /** * 获取配置 * * @return com.alibaba.fastjson.support.config.FastJsonConfig * @author <achao1441470436@gmail.com> * @since 2021/10/9 12:46 */ public static FastJsonConfig getConfig() { return FAST_JSON_CONFIG; } } |
然后是注入SaTokenDao的实现：
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 | hljs java package com.ruben.xchat.manager; import cn.dev33.satoken.dao.SaTokenDao; import cn.dev33.satoken.session.SaSession; import cn.dev33.satoken.util.SaFoxUtil; import com.alibaba.fastjson.JSONObject; import com.alibaba.fastjson.support.spring.FastJsonRedisSerializer; import com.ruben.xchat.config.FastJsonConfigHandler; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.core.StringRedisTemplate; import org.springframework.data.redis.serializer.StringRedisSerializer; import org.springframework.stereotype.Component; import javax.annotation.Resource; import java.util.ArrayList; import java.util.List; import java.util.Optional; import java.util.Set; import java.util.concurrent.TimeUnit; /** * Sa-Token持久层接口 [Redis版] (使用 fastJson 序列化方式) * * @author VampireAchao */ @Component public class SaTokenDaoRedisFastJson implements SaTokenDao { /** * key序列化 */ public static final StringRedisSerializer KEY_SERIALIZER; /** * value序列化 */ public static final FastJsonRedisSerializer<Object> VALUE_SERIALIZER; /** * String专用 */ public StringRedisTemplate stringRedisTemplate; /** * Object专用 */ public RedisTemplate<String, Object> objectRedisTemplate; /** * 标记：是否已初始化成功 */ public boolean isInit; static { // 指定相应的序列化方案 KEY_SERIALIZER = new StringRedisSerializer(); VALUE_SERIALIZER = new FastJsonRedisSerializer<>(Object.class); VALUE_SERIALIZER.setFastJsonConfig(FastJsonConfigHandler.getConfig()); } @Resource public void init(RedisConnectionFactory connectionFactory) { // 构建StringRedisTemplate StringRedisTemplate stringTemplate = new StringRedisTemplate(); stringTemplate.setConnectionFactory(connectionFactory); stringTemplate.afterPropertiesSet(); // 构建RedisTemplate RedisTemplate<String, Object> template = new RedisTemplate<>(); template.setConnectionFactory(connectionFactory); template.setKeySerializer(KEY_SERIALIZER); template.setHashKeySerializer(KEY_SERIALIZER); template.setValueSerializer(VALUE_SERIALIZER); template.setHashValueSerializer(VALUE_SERIALIZER); template.afterPropertiesSet(); // 开始初始化相关组件 if (!this.isInit) { this.stringRedisTemplate = stringTemplate; this.objectRedisTemplate = template; this.isInit = true; } } /** * 获取Value，如无返空 */ @Override public String get(String key) { return stringRedisTemplate.opsForValue().get(key); } /** * 写入Value，并设定存活时间 (单位: 秒) */ @Override public void set(String key, String value, long timeout) { if (timeout == 0 || timeout <= SaTokenDao.NOT_VALUE_EXPIRE) { return; } // 判断是否为永不过期 if (timeout == SaTokenDao.NEVER_EXPIRE) { stringRedisTemplate.opsForValue().set(key, value); } else { stringRedisTemplate.opsForValue().set(key, value, timeout, TimeUnit.SECONDS); } } /** * 修修改指定key-value键值对 (过期时间不变) */ @Override public void update(String key, String value) { long expire = getTimeout(key); // -2 = 无此键 if (expire == SaTokenDao.NOT_VALUE_EXPIRE) { return; } this.set(key, value, expire); } /** * 删除Value */ @Override public void delete(String key) { stringRedisTemplate.delete(key); } /** * 获取Value的剩余存活时间 (单位: 秒) */ @Override public long getTimeout(String key) { return Optional.ofNullable(stringRedisTemplate).map(t -> t.getExpire(key)).orElseThrow(IllegalStateException::new); } /** * 修改Value的剩余存活时间 (单位: 秒) */ @Override public void updateTimeout(String key, long timeout) { // 判断是否想要设置为永久 if (timeout == SaTokenDao.NEVER_EXPIRE) { long expire = getTimeout(key); if (expire == SaTokenDao.NEVER_EXPIRE) { // 如果其已经被设置为永久，则不作任何处理 return; } // 如果尚未被设置为永久，那么再次set一次 this.set(key, this.get(key), timeout); return; } stringRedisTemplate.expire(key, timeout, TimeUnit.SECONDS); } /** * 获取Object，如无返空 */ @Override public Object getObject(String key) { return objectRedisTemplate.opsForValue().get(key); } /** * 写入Object，并设定存活时间 (单位: 秒) */ @Override public void setObject(String key, Object object, long timeout) { if (timeout == 0 || timeout <= SaTokenDao.NOT_VALUE_EXPIRE) { return; } // 判断是否为永不过期 if (timeout == SaTokenDao.NEVER_EXPIRE) { objectRedisTemplate.opsForValue().set(key, object); } else { objectRedisTemplate.opsForValue().set(key, object, timeout, TimeUnit.SECONDS); } } /** * 更新Object (过期时间不变) */ @Override public void updateObject(String key, Object object) { long expire = getObjectTimeout(key); // -2 = 无此键 if (expire == SaTokenDao.NOT_VALUE_EXPIRE) { return; } this.setObject(key, object, expire); } /** * 删除Object */ @Override public void deleteObject(String key) { objectRedisTemplate.delete(key); } /** * 获取Object的剩余存活时间 (单位: 秒) */ @Override public long getObjectTimeout(String key) { return Optional.ofNullable(objectRedisTemplate).map(t -> t.getExpire(key)).orElseThrow(IllegalStateException::new); } /** * 修改Object的剩余存活时间 (单位: 秒) */ @Override public void updateObjectTimeout(String key, long timeout) { // 判断是否想要设置为永久 if (timeout == SaTokenDao.NEVER_EXPIRE) { long expire = getObjectTimeout(key); if (expire == SaTokenDao.NEVER_EXPIRE) { // 如果其已经被设置为永久，则不作任何处理 return; } // 如果尚未被设置为永久，那么再次set一次 this.setObject(key, this.getObject(key), timeout); return; } objectRedisTemplate.expire(key, timeout, TimeUnit.SECONDS); } /** * 获取Session，如无返空 * * @param sessionId sessionId * @return SaSession */ @Override public SaSession getSession(String sessionId) { return Optional.ofNullable(getObject(sessionId)).map(o -> ((JSONObject) o).toJavaObject(SaSession.class)).orElse(null); } /** * 搜索数据 */ @Override public List<String> searchData(String prefix, String keyword, int start, int size) { Set<String> keys = stringRedisTemplate.keys(prefix + "*" + keyword + "*"); return Optional.ofNullable(keys).map(ArrayList::new).map(list -> SaFoxUtil.searchList(list, start, size)).orElseGet(ArrayList::new); } } |
最后成功实现
