improve LogFilter

src/test/java/com/alibaba/druid/bvt/filter/log/LogFilterTest2.java

@@ -0,0 +1,40 @@
+package com.alibaba.druid.bvt.filter.log;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+
+import junit.framework.TestCase;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class LogFilterTest2 extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+        dataSource.setUrl("jdbc:derby:classpath:petstore-db");
+        dataSource.setFilters("log4j");
+    }
+    
+    public void test_select() throws Exception {
+        Connection conn = dataSource.getConnection();
+        
+        PreparedStatement stmt = conn.prepareStatement("SELECT * FROM ITEM WHERE LISTPRICE > 10");
+        
+        for (int i = 0; i < 10; ++i) {
+            ResultSet rs = stmt.executeQuery();
+            rs.close();
+        }
+        
+        stmt.close();
+        
+        conn.close();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+}

src/test/java/com/alibaba/druid/bvt/hibernate/HibernateCRUDTest.java

@@ -34,6 +34,7 @@ public class HibernateCRUDTest extends TestCase {
 		dataSource.setUsername("sa");
 		dataSource.setPassword("");
 		dataSource.setDefaultAutoCommit(false);
+		dataSource.setFilters("log4j");
 
 		/*init sessionFactory*/
 		LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean();