blade-tool/blade-core-report/src/main/java/com/bstek/ureport/console/excel/ExportExcel97ServletAction....

120 lines
4.3 KiB
Java

/*******************************************************************************
* 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.console.excel;
import com.bstek.ureport.build.ReportBuilder;
import com.bstek.ureport.console.BaseServletAction;
import com.bstek.ureport.console.cache.TempObjectCache;
import com.bstek.ureport.console.exception.ReportDesignException;
import com.bstek.ureport.definition.ReportDefinition;
import com.bstek.ureport.exception.ReportComputeException;
import com.bstek.ureport.export.ExportConfigure;
import com.bstek.ureport.export.ExportConfigureImpl;
import com.bstek.ureport.export.ExportManager;
import com.bstek.ureport.export.excel.low.Excel97Producer;
import com.bstek.ureport.model.Report;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Map;
/**
* @author Jacky.gao
* @since 2017年7月3日
*/
public class ExportExcel97ServletAction extends BaseServletAction {
private ReportBuilder reportBuilder;
private ExportManager exportManager;
private Excel97Producer excelProducer = new Excel97Producer();
@Override
public void execute(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String method = retriveMethod(req);
if (method != null) {
invokeMethod(method, req, resp);
} else {
buildExcel(req, resp, false, false);
}
}
public void paging(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
buildExcel(req, resp, true, false);
}
public void sheet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
buildExcel(req, resp, false, true);
}
public void buildExcel(HttpServletRequest req, HttpServletResponse resp, boolean withPage, boolean withSheet) throws IOException {
String file = req.getParameter("_u");
if (StringUtils.isBlank(file)) {
throw new ReportComputeException("Report file can not be null.");
}
String fileName = req.getParameter("_n");
if (StringUtils.isNotBlank(fileName)) {
fileName = decode(fileName);
} else {
fileName = "ureport.xls";
}
resp.setContentType("application/octet-stream;charset=ISO8859-1");
resp.setHeader("Content-Disposition", "attachment;filename=\"" + fileName + "\"");
Map<String, Object> parameters = buildParameters(req);
OutputStream outputStream = resp.getOutputStream();
if (file.equals(PREVIEW_KEY)) {
ReportDefinition reportDefinition = (ReportDefinition) TempObjectCache.getObject(PREVIEW_KEY);
if (reportDefinition == null) {
throw new ReportDesignException("Report data has expired,can not do export excel.");
}
Report report = reportBuilder.buildReport(reportDefinition, parameters);
if (withPage) {
excelProducer.produceWithPaging(report, outputStream);
} else if (withSheet) {
excelProducer.produceWithSheet(report, outputStream);
} else {
excelProducer.produce(report, outputStream);
}
} else {
ExportConfigure configure = new ExportConfigureImpl(file, parameters, outputStream);
if (withPage) {
exportManager.exportExcelWithPaging(configure);
} else if (withSheet) {
exportManager.exportExcelWithPagingSheet(configure);
} else {
exportManager.exportExcel(configure);
}
}
outputStream.flush();
outputStream.close();
}
public void setReportBuilder(ReportBuilder reportBuilder) {
this.reportBuilder = reportBuilder;
}
public void setExportManager(ExportManager exportManager) {
this.exportManager = exportManager;
}
@Override
public String url() {
return "/excel97";
}
}