ureport自定义报表存储至数据库

朱雀 2022-03-09 15:54 568阅读 0赞

转载：

[https://blog.csdn.net/qq\_35170213/article/details/80290425][https_blog.csdn.net_qq_35170213_article_details_80290425]

参考源码类：

/*******************************************************************************
     * Copyright 2017 Bstek
     * 
     * 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.bstek.ureport.provider.report.file;
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.util.ArrayList;
    import java.util.Calendar;
    import java.util.Collections;
    import java.util.Comparator;
    import java.util.List;
    
    import javax.servlet.ServletContext;
    
    import org.apache.commons.io.IOUtils;
    import org.springframework.beans.BeansException;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationContextAware;
    import org.springframework.web.context.WebApplicationContext;
    
    import com.bstek.ureport.exception.ReportException;
    import com.bstek.ureport.provider.report.ReportFile;
    import com.bstek.ureport.provider.report.ReportProvider;
    
    /**
     * @author Jacky.gao
     * @since 2017年2月11日
     */
    public class FileReportProvider implements ReportProvider,ApplicationContextAware{
    	private String prefix="file:";
    	private String fileStoreDir;
    	private boolean disabled;
    	@Override
    	public InputStream loadReport(String file) {
    		if(file.startsWith(prefix)){
    			file=file.substring(prefix.length(),file.length());
    		}
    		String fullPath=fileStoreDir+"/"+file;
    		try {
    			return new FileInputStream(fullPath);
    		} catch (FileNotFoundException e) {
    			throw new ReportException(e);
    		}
    	}
    	
    	@Override
    	public void deleteReport(String file) {
    		if(file.startsWith(prefix)){
    			file=file.substring(prefix.length(),file.length());
    		}
    		String fullPath=fileStoreDir+"/"+file;
    		File f=new File(fullPath);
    		if(f.exists()){
    			f.delete();
    		}
    	}
    
    	@Override
    	public List<ReportFile> getReportFiles() {
    		File file=new File(fileStoreDir);
    		List<ReportFile> list=new ArrayList<ReportFile>();
    		for(File f:file.listFiles()){
    			Calendar calendar=Calendar.getInstance();
    			calendar.setTimeInMillis(f.lastModified());
    			list.add(new ReportFile(f.getName(),calendar.getTime()));
    		}
    		Collections.sort(list, new Comparator<ReportFile>(){
    			@Override
    			public int compare(ReportFile f1, ReportFile f2) {
    				return f2.getUpdateDate().compareTo(f1.getUpdateDate());
    			}
    		});
    		return list;
    	}
    
    	@Override
    	public String getName() {
    		return "服务器文件系统";
    	}
    	
    	@Override
    	public void saveReport(String file,String content) {
    		if(file.startsWith(prefix)){
    			file=file.substring(prefix.length(),file.length());
    		}
    		String fullPath=fileStoreDir+"/"+file;
    		FileOutputStream outStream=null;
    		try{
    			outStream=new FileOutputStream(new File(fullPath));
    			IOUtils.write(content, outStream,"utf-8");
    		}catch(Exception ex){
    			throw new ReportException(ex);
    		}finally{
    			if(outStream!=null){
    				try {
    					outStream.close();
    				} catch (IOException e) {
    					e.printStackTrace();
    				}
    			}
    		}
    		
    	}
    
    	@Override
    	public boolean disabled() {
    		return disabled;
    	}
    	
    	public void setDisabled(boolean disabled) {
    		this.disabled = disabled;
    	}
    	
    	public void setFileStoreDir(String fileStoreDir) {
    		this.fileStoreDir = fileStoreDir;
    	}
    	
    	@Override
    	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    		File file=new File(fileStoreDir);
    		if(file.exists()){
    			return;
    		}
    		if(applicationContext instanceof WebApplicationContext){
    			WebApplicationContext context=(WebApplicationContext)applicationContext;
    			ServletContext servletContext=context.getServletContext();
    			String basePath=servletContext.getRealPath("/");
    			fileStoreDir=basePath+fileStoreDir;
    			file=new File(fileStoreDir);
    			if(!file.exists()){
    				file.mkdirs();
    			}
    		}
    	}
    
    	@Override
    	public String getPrefix() {
    		return prefix;
    	}
    }

自己修改的后的类：

package com.qingtui.server;
    
    import com.bstek.ureport.provider.report.ReportFile;
    import com.bstek.ureport.provider.report.ReportProvider;
    import com.qingtui.bean.UreportFileEntity;
    import com.qingtui.dao.UreportFileMapper;
    import java.io.ByteArrayInputStream;
    import java.io.InputStream;
    import java.util.ArrayList;
    import java.util.Date;
    import java.util.List;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    /**
     * 报表储存
     *
     * @author qiaofeng
     */
    @Component
    public class SqlProvider implements ReportProvider {
    
        private static final String NAME = "乔峰文件服务器系统";
    
        //特定前缀，ureport底层调用getPrefix方法来获报表操作的Provier类
        private String prefix = "qiaofeng";
    
        //是否禁用
        private boolean disable = false;
    
        @Autowired
        UreportFileMapper ureportFileMapper;
    
        //加载表报
        public InputStream loadReport(String fileName) {
            UreportFileEntity ureportFileEntity = ureportFileMapper.queryUreportFileEntityByName(fileName);
            byte[] content = new byte[0];
            if (ureportFileEntity != null) {
                content = ureportFileEntity.getContent();
            }
            return new ByteArrayInputStream(content);
        }
    
        //删除表报
        public void deleteReport(String fileName) {
            if (fileName != null){
                fileName = getNoCorrectName(fileName);
                ureportFileMapper.deleteReportFileByName(fileName);
            }
        }
    
        //查询所有表报
        public List<ReportFile> getReportFiles() {
            List<UreportFileEntity> ureportFileEntities = ureportFileMapper.queryReportFileList();
            List<ReportFile> reportFiles = new ArrayList<ReportFile>();
            for (UreportFileEntity ufe : ureportFileEntities){
                reportFiles.add(new ReportFile(ufe.getName(), ufe.getUpdateTime()));
            }
            return reportFiles;
        }
    
        //保存表报
        public void saveReport(String fileName, String content) {
            fileName = getNoCorrectName(fileName);
            UreportFileEntity ureportFileEntity = ureportFileMapper.queryUreportFileEntityByName(fileName);
            Date date = new Date();
            if (ureportFileEntity == null){
                ureportFileEntity = new UreportFileEntity();
                ureportFileEntity.setContent(content.getBytes());
                ureportFileEntity.setUpdateTime(date);
                ureportFileEntity.setCreateTime(date);
                ureportFileEntity.setName(fileName);
                ureportFileMapper.insertReportFile(ureportFileEntity);
            }else {
                ureportFileEntity.setContent(content.getBytes());
                ureportFileEntity.setUpdateTime(date);
                ureportFileMapper.updateReportFile(ureportFileEntity);
            }
    
        }
    
    
        /**
         * 获取没有前缀的文件名
         * @param name
         * @return
         */
        private String getNoCorrectName(String name){
            if(name.startsWith(prefix)){
                name = name.substring(prefix.length(), name.length());
            }
            return name;
    
        }
    
    
        public String getName() {
            return NAME;
        }
    
        public boolean disabled() {
            return disable;
        }
    
        public String getPrefix() {
            return prefix;
        }
    
    }

[https_blog.csdn.net_qq_35170213_article_details_80290425]: https://blog.csdn.net/qq_35170213/article/details/80290425