Check url

zacfeng · Sep 12, 2014 · f9bcaca · f9bcaca
1 parent 8b9c4a1
commit f9bcaca
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/main/java/com/xiaoleilu/hutool/FileUtil.java b/src/main/java/com/xiaoleilu/hutool/FileUtil.java
@@ -590,6 +590,10 @@ public static String readString(String path, String charset) throws IOException
 	 * @throws IOException
 	 */
 	public static String readString(URL url, String charset) throws IOException {
+		if(url == null) {
+			throw new RuntimeException("Empty url provided!");
+		}
+
 		InputStream in = null;
 		try {
 			in = url.openStream();