使用Aspose.Words for Java 可以导出复杂WORD PDF HTML 多种数据格式
官方下载地址:http://www.aspose.com/java/word-component.aspx
我所用的版本是Aspose.Words.jdk16.jar
先看效果图
1-对数据行的导出,分别是PDF与WORD格式
2-对类似于个人简历的数据导出带图片,分别是PDF与WORD格式
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使用该组件一共分为4个步骤
1-定义模板
2-加载模板
3-填充数据
4-设置导出格式并导出
接下来我们按照以上4个步骤进行报表的导出
首先定义模板(可以再附件中下载)这里只介绍最后一个个人简历的模板
一个普通的自定义word就可以
«TableStart:Employees»
«TableEnd:Employees»
这一对标记代表一个数据单元 Employees 是可以自定义的 填充数据源时要对应上
其他的就好理解了 比如«FirstName» 就是数据源中的属性
接下来开始我们的导出之旅吧!!!!
第一步定义一个导出的抽象类
package com.epkj.words; import org.springframework.stereotype.Component; import com.aspose.words.Document; @Component("ProcessWord") public abstract class ProcessWord { public abstract Document execute(String templatePath) throws Exception; }
第二部写一个具体的实现类
package com.epkj.words; import java.io.FileInputStream; import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.springframework.stereotype.Component; import com.aspose.words.Document; /** * 带图片的导出 */ @Component("EmployeesReportDemo") public class EmployeesReportDemo extends ProcessWord { @Override public Document execute(String templatePath) throws Exception { //1 读取模板 Document doc = new Document(templatePath + "/" + "EmployeesReportDemo.doc"); String imagePath = templatePath + "/" + "employees.jpg"; //2 填充数据源 doc.getMailMerge().executeWithRegions(new MapMailMergeDataSource(getMapList(imagePath), "Employees")); return doc; } private List<Map<String, Object>> getMapList(String imagePath) throws IOException { List<Map<String, Object>> dataList = new ArrayList<Map<String,Object>>(); //读取一个二进制图片 FileInputStream fis = new FileInputStream(imagePath); byte[] image = new byte[fis.available()]; fis.read(image); fis.close(); for (int i = 0; i < 20; i++) { Map<String, Object> record = new HashMap<String, Object>(); //这里的key要与模板中的<<xxxxx>>对应 record.put("FirstName", "欧阳"); record.put("LastName", "夏丹"); record.put("Title", "个人简历导出Word PDF"); record.put("Address", "中国 北京市 东城区"); record.put("City", "北京"); record.put("Country", "辽宁沈阳"); //二进制数据 record.put("PhotoBLOB", image); dataList.add(record); } return dataList; } }
!!!因为Aspose.Words for Java不支持HashMap的数据格式,需要我们自己实现
好在它提供了IMailMergeDataSource接口
package com.epkj.words; import java.util.ArrayList; import java.util.List; import java.util.Map; import com.aspose.words.IMailMergeDataSource; /** * 实现对HashMap的支持 */ public class MapMailMergeDataSource implements IMailMergeDataSource { private List<Map<String, Object>> dataList; private int index; //word模板中的«TableStart:tableName»«TableEnd:tableName»对应 private String tableName = null; /** * @param dataList 数据集 * @param tableName 与模板中的Name对应 */ public MapMailMergeDataSource(List<Map<String, Object>> dataList, String tableName) { this.dataList = dataList; this.tableName = tableName; index = -1; } /** * @param data 单个数据集 * @param tableName 与模板中的Name对应 */ public MapMailMergeDataSource(Map<String, Object> data, String tableName) { if(this.dataList == null) { this.dataList = new ArrayList<Map<String,Object>>(); this.dataList.add(data); } this.tableName = tableName; index = -1; } /** * 获取结果集总数 * @return */ private int getCount() { return this.dataList.size(); } @Override public IMailMergeDataSource getChildDataSource(String arg0) throws Exception { return null; } @Override public String getTableName() throws Exception { return this.tableName; } /** * 实现接口 * 获取当前index指向数据行的数据 * 将数据存入args数组中即可 * @return ***返回false则不绑定数据*** */ @Override public boolean getValue(String key, Object[] args) throws Exception { if(index < 0 || index >= this.getCount()) { return false; } if(args != null && args.length > 0) { args[0] = this.dataList.get(index).get(key); return true; } else { return false; } } /** * 实现接口 * 判断是否还有下一条记录 */ @Override public boolean moveNext() throws Exception { index += 1; if(index >= this.getCount()) { return false; } return true; } }
这样我们就把数据填充好了。接下来就是导出了
package com.epkj.words; import javax.servlet.ServletContext; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; import com.aspose.words.Document; import com.aspose.words.SaveFormat; /** * 所有导出功能由该类完成 */ @Controller @RequestMapping("/DemoBaseController.do") public class DemoBaseController { @RequestMapping(params = "method=exportDoc") public Object exportDoc(HttpServletRequest request, HttpServletResponse response) { ServletContext sc = request.getSession().getServletContext(); //加载对应的模板 String command = request.getParameter("command"); //下载的文件名 String docName = request.getParameter("docName"); if(docName == null) { docName = System.currentTimeMillis() + ""; } //返回到客户端的格式(DOC DOCX PDF) String formatType = request.getParameter("formatType"); if(formatType == null) { formatType = "DOCX"; } ProcessWord pw = getProcessWordByName(command, sc); try { Document doc = pw.execute(sc.getRealPath("/Designer")); sendToBrowser(doc, docName, formatType, true, response); response.flushBuffer(); } catch (Exception e) { throw new RuntimeException(e); } return null; } public WebApplicationContext getWebApplicationContext(ServletContext sc) { return WebApplicationContextUtils.getRequiredWebApplicationContext(sc); } private ProcessWord getProcessWordByName(String name, ServletContext sc) { return (ProcessWord) this.getWebApplicationContext(sc).getBean(name); } /** * 向客户端发送数据 * @param doc com.aspose.words.Document * @param docName 返回客户端的word文件名 * @param formatType DOC 或者 DOCX * @param openNewWindow 在线打开或者下载 * @param response * @throws Exception */ private void sendToBrowser(Document doc, String docName, String formatType, boolean openNewWindow, HttpServletResponse response) throws Exception { String extension = formatType; if (formatType.equals("WML") || formatType.equals("FOPC")) extension = "XML"; String fileName = docName + "." + extension; if (openNewWindow) response.setHeader("content-disposition", "attachment; filename=" + fileName); else response.addHeader("content-disposition", "inline; filename=" + fileName); if ("DOC".equals(formatType)) { response.setContentType("application/msword"); doc.save(response.getOutputStream(), SaveFormat.DOC); } else if ("DOCX".equals(formatType)) { response.setContentType("application/vnd.openxmlformats-officedocument.wordprocessingml.document"); doc.save(response.getOutputStream(), SaveFormat.DOCX); } else if ("PDF".equals(formatType)) { response.setContentType("application/pdf"); doc.save(response.getOutputStream(), SaveFormat.PDF); } } }
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