freemarker使用
public class ExportHtmlUtil {
?
private static Configuration cfg;
?
? ? static{
? ? ? ? cfg = new Configuration();
? ? }
/**
* 通过freemark生成html文件?
* @param rootPath ?文件生成后保存路径
* @param templetName ?模板名字 ?ftl 文件
* @param genFileName ?生成文件名字
* @param listLecture ?参数
* @return
*/
public static boolean genFileByFtl(String templetDir, String ?templetName ,String genFileName, List ?listParam ){
?
//取得工程classes的目录 作为ftl模板的目录
File dir = new File(ExportHtmlUtil.class.getClassLoader().getResource("/").getPath() );
?
Writer out = null;
try {
//加载模板存放目录
cfg.setDirectoryForTemplateLoading( dir );
//模板中传递参数
? ? ? ?Map<String, Object> root = new HashMap<String, Object>();
? ? ? ?root.put("listUser", listParam );
? ? ? ?
//Template t = cfg.getTemplate(ExportHtmlUtil.class.getClassLoader().getResource("/").getPath()+templetName );
Template t = cfg.getTemplate( templetName );
out = new OutputStreamWriter(new FileOutputStream( genFileName ), "UTF-8");
t.process(root, out);
out.flush();
out.close();
} catch ( Exception e) {
?e.printStackTrace();
?return false;
}finally{
try {
if(out!=null){
out.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
?
?
return true;
}
}
?
---------------------------
?
public String downloadHtml() ?{
FileInputStream fis = null;
OutputStream os =null;
try {
listLectureNote = lectureMng.getOneLecture(videoId,innerCwareID ,versionP );
List list = new ArrayList();
User user = new User();
user.setId(1);
user.setName("123");
user.setRealname("小王");
user.setAge(24);
String path = this.getRequest().getRealPath("/");
ExportHtmlUtil.genFileByFtl(path ,"entity.ftl" ?, path+File.separator+"user.html" , list);
HttpServletResponse response = this.getResponse();
response.setContentType("application/x-download");//设置为下载application/x-download
response.addHeader("Content-Disposition","attachment;filename=user.html");
fis = new FileInputStream(new File(path+File.separator+"user.html" ));
os = this.getResponse().getOutputStream() ;
byte[] bs = new byte[1024];
int len;
while( ? (len = fis.read(bs, 0, ?bs.length ))!=-1){
os.write(bs , 0, len);
}
os.flush();
os.close();
fis.close();
} catch ( Exception e) {
e.printStackTrace();
}finally{
try {
if(os!=null){
os.close();
}
if(fis!=null){
fis.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
---------------------------------------------------
<#list listUser as user>
${r"<!--"} NodeText(${user.id!""},${user.name!""},${user.age!""}); ${r"-->"}
${user.realname!""}
${r"<!--"} NodeTextEnd();${r"-->"}
</#list>