增加id是否存在的逻辑

tcp_server/src/main.rs

@@ -41,6 +41,21 @@ async fn connect_db(config: &Config) -> Result<tokio_postgres::Client, PgError>
 }
 
 async fn insert_instrument(client: &tokio_postgres::Client, info: &InstrumentInfo) -> Result<(), PgError> {
+    // 先检查 ID 是否存在
+    let exists = client
+        .query_one(
+            "SELECT EXISTS(SELECT 1 FROM public.hy_instrument WHERE id = $1)",
+            &[&info.id],
+        )
+        .await?
+        .get::<_, bool>(0);
+
+    if exists {
+        println!("ID {} 已存在，跳过插入", info.id);
+        return Ok(());
+    }
+
+    // ID 不存在，执行插入
     client.execute(
         "INSERT INTO public.hy_instrument (id, informationid, instrumentcode, laboratoryid, name, remark, specification) 
          OVERRIDING SYSTEM VALUE
@@ -57,7 +72,7 @@ async fn insert_instrument(client: &tokio_postgres::Client, info: &InstrumentInf
     )
     .await?;
 
-    println!("成功插入仪器信息: {}", info.instrumentcode);
+    println!("成功插入仪器信息: {} (ID: {})", info.instrumentcode, info.id);
     Ok(())
 }