freemarker-按格式输出文件

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使用步骤如下：

pospCheck.ftl模板文件如下：

<#list resultList as dto>
${${dto.oWebSeqNum?default("")},${dto.transDate?default("")},${dto.diffType?default("")},${dto.frontStatus?default("")}
</#list>

2.public void buildTestFile(String date) {
List<CheckFeeDto> fileData = CheckDao.getPctData(date);
Map map = new HashMap();
map.put("resultList", fileData);
String charset = "GBK";
// 模板文件为FTL
Writer writer = null;
try {
String saveLocalPath = FilePath + date.substring(0, 6) + "/"
+ date.substring(6, 8) + "/";
File checkFileDir = new File(saveLocalPath);
if (!checkFileDir.exists())
{
checkFileDir.mkdirs();
}

String basePath = this.getClass().getResource("/ftl_templates").getPath();

File file=new File(basePath+ "/withdrawFee.ftl");

Configuration conf = Configuration.getDefaultConfiguration();
conf.setDirectoryForTemplateLoading(new File(basePath));
conf.setEncoding(Locale.CHINA, "utf-8");
conf.setOutputEncoding(charset);

Template template = conf.getTemplate(file.getName());
writer = new CharArrayWriter();
template.process(map, writer);
writer.flush();

String filename =saveLocalPath+"FF_" + date + ".txt";
File outfile = new File(filename);
OutputStream os = new FileOutputStream(outfile);
FileUtil.save(os, writer.toString().getBytes(charset));

os.flush();
os.close();
writer.close();

} catch (Exception e) {
return null;

} finally {
if (null != writer) {
try {
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

3.FileUtil 类中的save 方法

/**
* 保存字节到输出流中.
* @param os 输出流
* @param bytes 字节流
* @throws IOException
* 调用完后由调用者应该关闭os输出流.
*/
public static void save(final OutputStream os, final byte[] bytes)
throws IOException {
BufferedOutputStream bos = new BufferedOutputStream(os);
bos.write(bytes);
bos.flush();
}

freemarker-按格式输出文件

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原文地址：http://www.cnblogs.com/tlyben/p/5141509.html