Refine MySQL status messaging and SQL page copy

tools/web_server.py

@@ -214,6 +214,20 @@ def run_command(args: list[str]) -> subprocess.CompletedProcess[str]:
     )
 
 
+def sanitize_mysql_message(message: str, host: str | None = None, port: str | None = None) -> str:
+    lines = [line.strip() for line in str(message or "").splitlines() if line.strip()]
+    filtered = [line for line in lines if not line.startswith("WARNING:")]
+    text = "\n".join(filtered or lines)
+    host_text = host or os.environ.get("MYSQL_HOST", "mysql")
+    port_text = port or os.environ.get("MYSQL_PORT", "3306")
+
+    if "Can't connect to server on" in text or "Can't connect to MySQL server on" in text:
+        return f"MySQL 当前无法连接: {host_text}:{port_text}"
+    if "Access denied" in text:
+        return f"MySQL 账号或密码无效: {host_text}:{port_text}"
+    return text or f"MySQL 当前无法连接: {host_text}:{port_text}"
+
+
 def normalize_text(text: str) -> str:
     return NORMALIZE_RE.sub("", (text or "").lower())
 
@@ -255,7 +269,9 @@ def run_mysql_query(sql: str, database: str | None = None) -> list[dict[str, str
         check=False,
     )
     if proc.returncode != 0:
-        message = proc.stderr.strip() or proc.stdout.strip() or f"mysql exited with {proc.returncode}"
+        message = sanitize_mysql_message(
+            proc.stderr.strip() or proc.stdout.strip() or f"mysql exited with {proc.returncode}"
+        )
         raise RuntimeError(message)
 
     lines = [line for line in proc.stdout.splitlines() if line.strip()]
@@ -369,7 +385,11 @@ def get_status_payload() -> dict[str, object]:
             mysql_ready = True
             mysql_status = mysql_proc.stdout.strip() or "MySQL ready"
         else:
-            mysql_status = mysql_proc.stderr.strip() or mysql_proc.stdout.strip() or "MySQL unavailable"
+            mysql_status = sanitize_mysql_message(
+                mysql_proc.stderr.strip() or mysql_proc.stdout.strip() or "MySQL unavailable",
+                host=mysql_host,
+                port=mysql_port,
+            )
     else:
         mysql_status = "MySQL auto load disabled"