diff --git a/src/main/java/quant/rich/emoney/annotation/ResponseDecodeExtension.java b/src/main/java/quant/rich/emoney/annotation/ResponseDecodeExtension.java
index 247b9a0..24cc825 100644
--- a/src/main/java/quant/rich/emoney/annotation/ResponseDecodeExtension.java
+++ b/src/main/java/quant/rich/emoney/annotation/ResponseDecodeExtension.java
@@ -8,7 +8,7 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.Target;
 
 /**
- * 注解在方法上以获取对 EmoneyProtocol 的额外操作
+ * 注解在方法上以获取对 Emoney Protocol 的额外操作
  * <p>
  * 目前方法必须是受 spring 管理类下的公共成员方法，且接受参数为单参数 JsonNode.
  * <p>
@@ -21,18 +21,15 @@ import java.lang.annotation.Target;
 @Target(METHOD)
 public @interface ResponseDecodeExtension {
     /**
-     * 指定的 protocolId
-     * @return
+     * @return 指定的 protocolId
      */
     String protocolId();
     /**
-     * inspect 的排序
-     * @return
+     * @return inspect 的排序
      */
     int order() default -1;
     /**
-     * 是否在模拟客户端请求和返回时启用, 默认 true
-     * @return
+     * @return 是否在模拟客户端请求和返回时启用, 默认 true
      */
     boolean client() default true;
 }
diff --git a/src/main/java/quant/rich/emoney/controller/manage/ProxySettingControllerV1.java b/src/main/java/quant/rich/emoney/controller/manage/ProxySettingControllerV1.java
index 6e73a3b..53e561e 100644
--- a/src/main/java/quant/rich/emoney/controller/manage/ProxySettingControllerV1.java
+++ b/src/main/java/quant/rich/emoney/controller/manage/ProxySettingControllerV1.java
@@ -47,23 +47,31 @@ public class ProxySettingControllerV1 extends UpdateBoolServiceController<ProxyS
 	    return super.getOne(id);
 	}
 	
-	@PostMapping("/save")
-	@ResponseBody
-	public R<?> save(@RequestBody ProxySetting proxySetting) {
-	    return super.save(proxySetting);
-	}
-	
-	@PostMapping("/delete")
-	@ResponseBody
-	public R<?> delete(String id) {
-	    return super.delete(id);
-	}
+	@PostMapping("/save")
+	@ResponseBody
+	public R<?> save(@RequestBody ProxySetting proxySetting) {
+	    R<?> result = super.save(proxySetting);
+	    proxySettingService.clearIpInfoCache();
+	    return result;
+	}
+
+	@PostMapping("/delete")
+	@ResponseBody
+	public R<?> delete(String id) {
+	    R<?> result = super.delete(id);
+	    proxySettingService.clearIpInfoCache();
+	    return result;
+	}
 
-    @Override
-    protected
-    R<?> updateBool(String id, String field, Boolean value) {
-        return super.updateBool(id, field, value);
-    }
+    @Override
+    protected
+    R<?> updateBool(String id, String field, Boolean value) {
+        R<?> result = super.updateBool(id, field, value);
+        if ("isDefault".equals(field)) {
+            proxySettingService.clearIpInfoCache();
+        }
+        return result;
+    }
 	
 	@PostMapping("/batchOp")
     @ResponseBody
@@ -79,10 +87,12 @@ public class ProxySettingControllerV1 extends UpdateBoolServiceController<ProxyS
             // op 为空是删除
         	throw RException.badRequest("操作类型不能为空");
         }
-        else if (ProxySettingBatchOp.DELETE == op) {
-            return R.judge(
-                    proxySettingService.removeBatchByIds(idArray));
-        }
+        else if (ProxySettingBatchOp.DELETE == op) {
+            R<?> result = R.judge(
+                    proxySettingService.removeBatchByIds(idArray));
+            proxySettingService.clearIpInfoCache();
+            return result;
+        }
         
         LambdaUpdateWrapper<ProxySetting> uw = new LambdaUpdateWrapper<>();
         uw.in(ProxySetting::getId, idArray);
diff --git a/src/main/java/quant/rich/emoney/entity/sqlite/ProxySetting.java b/src/main/java/quant/rich/emoney/entity/sqlite/ProxySetting.java
index 992e30f..ba9fba0 100644
--- a/src/main/java/quant/rich/emoney/entity/sqlite/ProxySetting.java
+++ b/src/main/java/quant/rich/emoney/entity/sqlite/ProxySetting.java
@@ -13,12 +13,19 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.annotation.Nonnull;
 import lombok.Data;
 import lombok.NoArgsConstructor;
-import lombok.experimental.Accessors;
-import quant.rich.emoney.validator.ProxySettingValid;
-
-@Data
-@Accessors(chain = true)
-@NoArgsConstructor
+import lombok.experimental.Accessors;
+import quant.rich.emoney.validator.ProxySettingValid;
+
+/**
+ * 平台代理配置。
+ * <p>
+ * SQLite 表 proxy_setting 使用触发器维护默认代理的一致性：新增或更新 is_default = 1
+ * 时会把其他记录置为非默认；不允许把最后一条默认代理改为非默认，也不允许删除默认代理。
+ * 这部分约束不在 Java 代码里重复实现，调整表结构或导入数据时需要同步检查触发器。
+ */
+@Data
+@Accessors(chain = true)
+@NoArgsConstructor
 @TableName(value = "proxy_setting", autoResultMap = true)
 @ProxySettingValid
 public class ProxySetting {
diff --git a/src/main/java/quant/rich/emoney/entity/sqlite/RequestInfo.java b/src/main/java/quant/rich/emoney/entity/sqlite/RequestInfo.java
index 7da1d92..0205eaa 100644
--- a/src/main/java/quant/rich/emoney/entity/sqlite/RequestInfo.java
+++ b/src/main/java/quant/rich/emoney/entity/sqlite/RequestInfo.java
@@ -30,12 +30,16 @@ import quant.rich.emoney.validator.RequestInfoValid;
 /**
  * 用于配置请求时的请求行为，一般而言，请求头与安卓系统的信息有关（build.prop）
  * 虽然部分请求对应服务器可能不进行审核，但合理的请求头能尽可能模仿真机行为，避免风险
- * @see DeviceInfoConfig
- * @see AndroidSdkLevelConfig
- * @see ChromeVersionsConfig
- */
-@Data
-@EqualsAndHashCode(callSuper=false)
+ * @see DeviceInfoConfig
+ * @see AndroidSdkLevelConfig
+ * @see ChromeVersionsConfig
+ * <p>
+ * SQLite 表 request_info 使用触发器维护默认请求配置的一致性：新增或更新 is_default = 1
+ * 时会把其他记录置为非默认；不允许把最后一条默认请求配置改为非默认，也不允许删除默认请求配置。
+ * 这部分约束不在 Java 代码里重复实现，调整表结构或导入数据时需要同步检查触发器。
+ */
+@Data
+@EqualsAndHashCode(callSuper=false)
 @Accessors(chain = true)
 @Slf4j
 @RequestInfoValid
diff --git a/src/main/java/quant/rich/emoney/entity/sqlite/StrategyAndPool.java b/src/main/java/quant/rich/emoney/entity/sqlite/StrategyAndPool.java
index 5f5e78d..86f283b 100644
--- a/src/main/java/quant/rich/emoney/entity/sqlite/StrategyAndPool.java
+++ b/src/main/java/quant/rich/emoney/entity/sqlite/StrategyAndPool.java
@@ -9,11 +9,14 @@ import lombok.Data;
 import lombok.ToString;
 import lombok.experimental.Accessors;
 
-/**
- * 益盟策略和策略池
- */
-@Data
-@Accessors(chain=true)
+/**
+ * 益盟策略和策略池
+ * <p>
+ * SQLite 表 strategy_and_pool 对 pool_id 设置了 UNIQUE_POOL_ID 唯一约束，并使用
+ * ON CONFLICT REPLACE。重复写入同一 pool_id 时会由 SQLite 替换旧记录。
+ */
+@Data
+@Accessors(chain=true)
 @TableName(value="strategy_and_pool")
 @ToString
 public class StrategyAndPool implements Comparable<StrategyAndPool> {
diff --git a/src/main/java/quant/rich/emoney/service/sqlite/ProxySettingService.java b/src/main/java/quant/rich/emoney/service/sqlite/ProxySettingService.java
index 4955dca..14902d1 100644
--- a/src/main/java/quant/rich/emoney/service/sqlite/ProxySettingService.java
+++ b/src/main/java/quant/rich/emoney/service/sqlite/ProxySettingService.java
@@ -36,9 +36,13 @@ public class ProxySettingService extends SqliteServiceImpl<ProxySettingMapper, P
     }
     
 
-    public synchronized IpInfo refreshIpThroughProxy() {
-        ipInfo = GeoIPUtil.getIpInfoThroughProxy(getDefaultProxySetting());
-        return ipInfo;
-    }
-    
-}
+    public synchronized IpInfo refreshIpThroughProxy() {
+        ipInfo = GeoIPUtil.getIpInfoThroughProxy(getDefaultProxySetting());
+        return ipInfo;
+    }
+
+    public void clearIpInfoCache() {
+        ipInfo = null;
+    }
+
+}