redis锁

src/main/java/xyz/playedu/api/checks/AppConfigCheck.java

@@ -30,7 +30,7 @@ public class AppConfigCheck implements ApplicationRunner {
                     setName("Logo");
                     setSort(20);
                     setFieldType(BackendConstant.APP_CONFIG_FIELD_TYPE_IMAGE);
-                    setKeyName("system.key");
+                    setKeyName("system.logo");
                     setKeyValue("");
                 }},
                 new AppConfig() {{

src/main/java/xyz/playedu/api/config/RedisConfig.java

@@ -20,7 +20,6 @@ public class RedisConfig {
         redisTemplate.setKeySerializer(stringRedisSerializer);
         redisTemplate.setHashKeySerializer(stringRedisSerializer);
 
-        // value值采用fastjson2序列化
         GenericJackson2JsonRedisSerializer jsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
         redisTemplate.setValueSerializer(jsonRedisSerializer);
         redisTemplate.setHashValueSerializer(jsonRedisSerializer);

src/main/java/xyz/playedu/api/controller/ExceptionController.java

@@ -20,11 +20,11 @@ import java.util.List;
 @Slf4j
 public class ExceptionController {
 
-    @ExceptionHandler(Exception.class)
+//    @ExceptionHandler(Exception.class)
-    public JsonResponse exceptionHandler(Exception e) {
+//    public JsonResponse exceptionHandler(Exception e) {
-        log.error(e.getMessage());
+//        log.error(e.getMessage());
-        return JsonResponse.error("系统错误", 500);
+//        return JsonResponse.error("系统错误", 500);
-    }
+//    }
 
     @ExceptionHandler(ServiceException.class)
     public JsonResponse serviceExceptionHandler(ServiceException e) {

src/main/java/xyz/playedu/api/controller/backend/AppConfigController.java

@@ -20,13 +20,13 @@ public class AppConfigController {
     @Autowired
     private AppConfigService configService;
 
-    @GetMapping("/")
+    @GetMapping("")
     public JsonResponse index() {
         List<AppConfig> configs = configService.allShow();
         return JsonResponse.data(configs);
     }
 
-    @PutMapping("/")
+    @PutMapping("")
     public JsonResponse save(@RequestBody AppConfigRequest req) {
         configService.saveFromMap(req.getData());
         return JsonResponse.data(null);

src/main/java/xyz/playedu/api/util/RedisLockUtil.java

@@ -0,0 +1,56 @@
+package xyz.playedu.api.util;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.redis.core.script.DefaultRedisScript;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/10 14:48
+ */
+@Slf4j
+public class RedisLockUtil {
+
+    public final static String LUA_LOCK_CREATE = """
+             if redis.call("GET", KEYS[1]) == ARGV[1] then
+             	redis.call("SET", KEYS[1], ARGV[1], "PX", ARGV[2])
+             	return "OK"
+             else
+             	return redis.call("SET", KEYS[1], ARGV[1], "NX", "PX", ARGV[2])
+             end
+            """;
+
+    public final static String LUA_LOCK_REMOVE = """
+            if redis.call("GET", KEYS[1]) == ARGV[1] then
+            	return redis.call("DEL", KEYS[1])
+            else
+            	return 0
+            end""";
+
+    public static boolean lock(String key, String value, Integer expire) {
+        DefaultRedisScript<Object> script = new DefaultRedisScript<>();
+        script.setScriptText(LUA_LOCK_CREATE);
+        // 脚本中的keys
+        List<String> keys = new ArrayList<>();
+        keys.add(key);
+
+        Object result = RedisUtil.handler().execute(script, keys, value, expire);
+        log.info("上锁结果 {}", result);
+        return false;
+    }
+
+    public static boolean remove(String key, String value) {
+        DefaultRedisScript<String> script = new DefaultRedisScript<>();
+        script.setScriptText(LUA_LOCK_REMOVE);
+        script.setResultType(String.class);
+        // 脚本中的keys
+        List<String> keys = new ArrayList<>();
+        keys.add(key);
+        String result = RedisUtil.handler().execute(script, keys, value);
+        log.info("解锁结果 {}", result);
+        return "OK".equals(result);
+    }
+
+}