fix

6 years ago · c117be5e40
1 changed files with 14 additions and 9 deletions
--- a/fine-druid/src/com/fr/third/alibaba/druid/pool/vendor/MSSQLValidConnectionChecker.java
+++ b/fine-druid/src/com/fr/third/alibaba/druid/pool/vendor/MSSQLValidConnectionChecker.java
@ -31,15 +31,20 @@ public class MSSQLValidConnectionChecker extends ValidConnectionCheckerAdapter i
    
    private static final long serialVersionUID = 1L;
    
-    public MSSQLValidConnectionChecker(){
+    public MSSQLValidConnectionChecker() {
    
    }
    
    public boolean isValidConnection(final Connection c, String validateQuery, int validationQueryTimeout) throws Exception {
+        
        if (c.isClosed()) {
            return false;
        }
        
+        if (validateQuery == null || validateQuery.isEmpty()) {
+            validateQuery = "select 1";
+        }
+        
        Statement stmt = null;
        
        try {