Here you can find the source of readfile(String filename)
public static String readfile(String filename) throws Exception
//package com.java2s; /*//w w w . j a v a 2 s . com * Copyright 2013 Cloud4SOA, www.cloud4soa.eu * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.*; public class Main { public static String readfile(String filename) throws Exception { String ret = ""; File file = new File(filename); int ch; StringBuffer strContent = new StringBuffer(""); FileInputStream fin = null; try { fin = new FileInputStream(file); while ((ch = fin.read()) != -1) strContent.append((char) ch); fin.close(); } catch (Exception e) { throw e; } ret = strContent.toString(); return ret; } }