Java tutorial
/* * 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. */ package com.mtt.myapp.operation.service; import java.io.IOException; import com.mtt.myapp.infra.config.AppConfig; import com.mtt.myapp.infra.config.AppHome; import org.apache.commons.io.FileUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; /** * System configuration operation service. * * @author Mavlarn * @since 1.0 */ @Service public class SystemConfigService { private static final Logger LOG = LoggerFactory.getLogger(SystemConfigService.class); @Autowired private AppHome home; /** * Get system configuration file content. * * @return file content. */ public String getOne() { try { return FileUtils.readFileToString(home.getSubFile("system.conf"), "UTF-8"); } catch (Exception e) { LOG.error("Error while reading system configuration file."); return null; } } /** * Save content to system configuration file. * * @param content file content. * * @return save successfully or not. */ public boolean save(String content) { try { FileUtils.writeStringToFile(home.getSubFile("system.conf"), content, "UTF-8"); } catch (IOException e) { LOG.error("Error while writing system configuration file."); return false; } return true; } }