POI处理EXCEL—个性化设计

public void createExcel(){   
        HSSFWorkbook wb = new HSSFWorkbook();  
        HSSFSheet sheet = wb.createSheet(keywords);  
        HSSFRow row = sheet.createRow((int) 0);  
        HSSFCellStyle style = wb.createCellStyle();  

        HSSFCell cell = row.createCell((short) 0);  
        cell.setCellValue("ID");  
        cell.setCellStyle(style);  
        cell = row.createCell((short) 1);  
        cell.setCellValue("摘要");  
        cell.setCellStyle(style);  
        cell = row.createCell((short) 2);  
        cell.setCellValue("位置");  
        cell.setCellStyle(style);  
       
        //关键词突出显示：标红加粗
        HSSFFont fontHl = wb.createFont();
        fontHl.setFontHeightInPoints((short) 14); // 字体高度
        fontHl.setBold(true);
        fontHl.setFontName("宋体"); // 字体
        fontHl.setColor(HSSFColor.RED.index);
        
        List<Map> docList = new ArrayList<Map>();//这里未初始化，若需要可以初始化一下.^_^

        Map docMap = null;
        for(int i = 0; i < docList.size(); i++){
        	doc = docList.get(i);
        	row = sheet.createRow((int) i + 1);
        	row.createCell((short) 0).setCellValue(String.valueOf(docMap.get("id")));
        	row.createCell((short) 2).setCellValue(String.valueOf(docMap.get("location")));
        	
        	//摘要，这里进行转换处理
        	HSSFRichTextString summary = new HSSFRichTextString(String.valueOf(docMap.get("summary")));

                //keywords：需要标红的字符串（出现在summary中）
        	Map m = hitNum(summary.getString(), "美国");
    		for (Object key:m.keySet()) {
    		     int start = Integer.parseInt(m.get(key).toString());
    		     summary.applyFont(start, start + keywords.length(), fontHl);
    		}
        	row.createCell((short) 1).setCellValue(summary);
        }
     
        FileOutputStream fout = new FileOutputStream("E:\\test.xls");  
        wb.write(fout);
        fout.close();  
}

/**
*@param source 源字符串
*@param target 目标字符串
*@return map target在source中出现的位置
*/
private Map hitNum(String source,String target){
      Map m = new HashMap();
      int count = 0;
      int prev = -1;// 用于保存前一次的索引位置
      for (int i = 0; i < source.length(); i++) {
	 if (source.indexOf(target, i) != -1) {
	     if (source.indexOf(target, i) != perv) {
		perv = source.indexOf(target, i);
		m.put(count++, perv);
	     }
          }
      }
      return m;
}