Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.glaf.wechat.service.impl; import java.util.Date; import java.util.List; import org.apache.ibatis.session.RowBounds; import org.mybatis.spring.SqlSessionTemplate; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.glaf.core.config.SystemProperties; import com.glaf.core.dao.EntityDAO; import com.glaf.core.id.IdGenerator; import com.glaf.core.util.FileUtils; import com.glaf.core.util.UUID32; import com.glaf.wechat.domain.WxFile; import com.glaf.wechat.mapper.WxFileMapper; import com.glaf.wechat.query.WxFileQuery; import com.glaf.wechat.service.WxFileService; @Service("wxFileService") @Transactional(readOnly = true) public class WxFileServiceImpl implements WxFileService { protected final Logger logger = LoggerFactory.getLogger(getClass()); protected EntityDAO entityDAO; protected IdGenerator idGenerator; protected SqlSessionTemplate sqlSessionTemplate; protected WxFileMapper wxFileMapper; public WxFileServiceImpl() { } public int count(WxFileQuery query) { return wxFileMapper.getWxFileCount(query); } @Transactional public void deleteById(Long id) { if (id != null) { wxFileMapper.deleteWxFileById(id); } } @Transactional public void deleteByIds(List<Long> ids) { if (ids != null && !ids.isEmpty()) { for (Long id : ids) { wxFileMapper.deleteWxFileById(id); } } } /** * ?? * * @param categoryId */ @Transactional public void deleteByCategoryId(Long categoryId) { WxFileQuery query = new WxFileQuery(); query.categoryId(categoryId); List<WxFile> rows = list(query); if (rows != null && !rows.isEmpty()) { for (WxFile file : rows) { FileUtils.deleteFile(SystemProperties.getAppPath() + file.getPath()); wxFileMapper.deleteWxFileById(file.getId()); } } } public WxFile getWxFile(Long id) { if (id == null) { return null; } WxFile wxFile = wxFileMapper.getWxFileById(id); return wxFile; } public WxFile getWxFileByUUID(String uuid) { return wxFileMapper.getWxFileByUUID(uuid); } public int getWxFileCountByQueryCriteria(WxFileQuery query) { return wxFileMapper.getWxFileCount(query); } public List<WxFile> getWxFilesByQueryCriteria(int start, int pageSize, WxFileQuery query) { RowBounds rowBounds = new RowBounds(start, pageSize); List<WxFile> rows = sqlSessionTemplate.selectList("getWxFiles", query, rowBounds); return rows; } public List<WxFile> list(WxFileQuery query) { List<WxFile> list = wxFileMapper.getWxFiles(query); return list; } @Transactional public void save(WxFile wxFile) { if (wxFile.getId() == 0) { wxFile.setId(idGenerator.nextId()); wxFile.setCreateDate(new Date()); if (wxFile.getUuid() == null) { wxFile.setUuid(UUID32.getUUID()); } wxFileMapper.insertWxFile(wxFile); } else { wxFile.setLastUpdateDate(new Date()); wxFileMapper.updateWxFile(wxFile); } } @Transactional public void saveAll(List<WxFile> files) { for (WxFile file : files) { this.save(file); } } @javax.annotation.Resource public void setEntityDAO(EntityDAO entityDAO) { this.entityDAO = entityDAO; } @javax.annotation.Resource public void setIdGenerator(IdGenerator idGenerator) { this.idGenerator = idGenerator; } @javax.annotation.Resource public void setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate) { this.sqlSessionTemplate = sqlSessionTemplate; } @javax.annotation.Resource public void setWxFileMapper(WxFileMapper wxFileMapper) { this.wxFileMapper = wxFileMapper; } }