From 28faead4673fcb61190b1a67aa7bb5227678d3de Mon Sep 17 00:00:00 2001
From: zhouhao <zh.sqy@qq.com>
Date: Thu, 21 Dec 2017 10:21:02 +0800
Subject: [PATCH] fix lock bug

---
 .../web/datasource/DynamicDataSourceProxy.java              | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hsweb-datasource/hsweb-datasource-api/src/main/java/org/hswebframework/web/datasource/DynamicDataSourceProxy.java b/hsweb-datasource/hsweb-datasource-api/src/main/java/org/hswebframework/web/datasource/DynamicDataSourceProxy.java
index 73307bbc9..56cfd8a58 100644
--- a/hsweb-datasource/hsweb-datasource-api/src/main/java/org/hswebframework/web/datasource/DynamicDataSourceProxy.java
+++ b/hsweb-datasource/hsweb-datasource-api/src/main/java/org/hswebframework/web/datasource/DynamicDataSourceProxy.java
@@ -50,10 +50,10 @@ public class DynamicDataSourceProxy implements DynamicDataSource {
     public DatabaseType getType() {
         if (databaseType == null) {
             lock.lock();
-            if (databaseType != null) {
-                return databaseType;
-            }
             try {
+                if (databaseType != null) {
+                    return databaseType;
+                }
                 try (Connection connection = proxy.getConnection()) {
                     databaseType = DatabaseType.fromJdbcUrl(connection.getMetaData().getURL());
                 }