add YamlUtil

hutool-db/src/test/java/cn/hutool/db/PicTransferTest.java

@@ -0,0 +1,34 @@
+package cn.hutool.db;
+
+import cn.hutool.core.collection.ListUtil;
+import cn.hutool.core.io.FileUtil;
+import cn.hutool.core.util.StrUtil;
+import org.junit.Ignore;
+import org.junit.Test;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public class PicTransferTest {
+
+	@Test
+	@Ignore
+	public void findTest() throws SQLException {
+		Db.use().find(
+				ListUtil.of("NAME", "TYPE", "GROUP", "PIC"),
+				Entity.create("PIC_INFO").set("TYPE", 1),
+				rs -> {
+					while(rs.next()){
+						save(rs);
+					}
+					return null;
+				}
+		);
+	}
+
+	private static void save(ResultSet rs) throws SQLException{
+		String destDir = "d:/test/pic";
+		String path = StrUtil.format("{}/{}-{}.jpg", destDir, rs.getString("NAME"), rs.getString("GROUP"));
+		FileUtil.writeFromStream(rs.getBlob("PIC").getBinaryStream(), path);
+	}
+}