feat: update druid datasouece when select datasource

Author: banzhe

src/main/java/io/github/linyimin/plugin/sql/DatasourceComponent.java

@@ -26,13 +26,23 @@ public Connection getConnection() throws Exception {
     }
 
     public void updateDatasource() {
+        this.close();
         try {
-            if (dataSource != null && !dataSource.isClosed()) {
+            dataSource = createDatasource();
+        } catch (Exception ignored) {
+            if (dataSource != null) {
+                dataSource.close();
+            }
+        }
+    }
+
+    public void close() {
+        try {
+            if (dataSource != null) {
                 dataSource.close();
             }
-            dataSource = createDatasource();
         } catch (Exception ignored) {
-            if (dataSource != null && !dataSource.isClosed()) {
+            if (dataSource != null) {
                 dataSource.close();
             }
         }

src/main/java/io/github/linyimin/plugin/ui/DatasourceDialog.java

@@ -141,6 +141,9 @@ private void initDatasource() {
             password.setText(component.getPassword());
             database.setText(component.getDatabase());
 
+            DatasourceComponent datasourceComponent = project.getService(DatasourceComponent.class);
+            datasourceComponent.updateDatasource();
+
         });
 
     }