Static pages Technology

1. In eclipse the click Window , select Reference , the following pop-up box
2. Found : General -> Editors -> File Associations

As follows : If there are * .ftl file, do not click on the above the Add . If not, click Add New

 

 

 

1. Then click on this page below the Add button:

 

 

 

 

 

 

1. Then select General - Content Types : 
2. 

    

    Programming steps, where we write a utility class to help us use

3. 

   Package cn.jiedada.util; 
   
   Import java.io.File;
    Import java.io.IOException;
    Import java.io.PrintWriter;
    Import a java.io.Writer;
    Import java.util.UUID; 
   
   Import freemarker.template.Configuration;
    Import freemarker.template.Template; 
   
   public  class FreeMakerUtil { 
   
       / ** 
        * @param the templatePath - FTL parent directory path file 
        * @param templateName - FTL file name 
        * @param Object - incoming data 
        * @param suffix - file suffix 
        * @return
        * / 
       Public  static String CreateFile (the templatePath String, String templateName, Object Data, String suffix) {
            // create a configuration object 
           the Configuration = the conf new new the Configuration (Configuration.VERSION_2_3_28); 
           Writer PW = null ; 
           String htmluri = null ;
            the try {
                / / create a parent directory file 
               file file = new new file (the templatePath);
                // set the default template file path and character set 
               conf.setDirectoryForTemplateLoading (file); 
               conf.setDefaultEncoding ( "UTF-8");
                // create Template 
               Template Template = conf.getTemplate (templateName);
                // set the new name 
               String uuid = UUID.randomUUID () toString () the replace ( "-", ".". ); 
               Htmluri = uuid + suffix;
                // set the output path 
               PW = new new the PrintWriter ( new new File (File, htmluri)); 
               template.process (Data, PW); 
           } the catch (Exception E) {
                // the TODO Auto-Generated Block the catch 
               e.printStackTrace (); 
           } a finally {
               if(pw!=null){
                   try {
                       pw.close();
                   } catch (IOException e) {
                       // TODO Auto-generated catch block
                       e.printStackTrace();
                   }
               }
           }
           return htmluri;
       }
   }

   View Code

    Incoming data can only map or entity class

4. and entity class map traversal
5. Entity class field names directly
6. a list object is added to a plurality of entities in the map traversal

7. < HTML > 
   
       < head > 
       < Meta charset = "UTF-. 8" > 
       </ head > 
       < body > 
                  data // passed in the map as a single data our 
           < #list List as L > 
               City: $ {l .cname} 
               city level 
                   < #if L.ID lt 10 > 
                   tier cities 
                   < #ElseIf L.ID lt 21 is > 
                   second city 
                   < #else > 
                   three cities 
                   </ #if > 
           </ #list >
       </body>
   </html>        

    So we need to modify and delete data deleted when the project what we need to do, because we delete, and update stored into the address of html

8. Here is a modification

9. @RequestMapping("/modify")
       public String modify(Jobs jobs,HttpServletRequest req){
           //先删除url在修改
           String realPath = req.getServletContext().getRealPath("/freemakser");
           File file = new File(realPath,jobs.getHtmlurl());
           if(file.exists()){
               file.delete();
           }
           service.modify(jobs);
           return "forward:page";
       }

    Here is deleted

10. 

    @RequestMapping("/del")
        public String delete(Integer id,String htmlurl,HttpServletRequest req){
            service.del(id);
            String realPath = req.getServletContext().getRealPath("/freemakser");
            File file = new File(realPath,htmlurl);
            if(file.exists()){
                file.delete();
            }
            return "forward:page";
        }

    View Code

     service may be modified to

11. 

    @Override
        public void modify(Jobs jobs) {
            String templatePath = "F:\\JAVAEE\\2019_09_11_cms4\\src\\main\\webapp\\freemakser";
            String templateName ="join_us_details.ftl";
            String htmlurl = FreeMakerUtil.createFile(templatePath, templateName, jobs, ".html");
            jobs.setHtmlurl(htmlurl);
            dao.modify(jobs);
        }
    
        @Override
        public void add(Jobs jobs) {
            String templatePath = "F:\\JAVAEE\\2019_09_11_cms4\\src\\main\\webapp\\freemakser";
            String templateName ="join_us_details.ftl";
            String htmlurl = FreeMakerUtil.createFile(templatePath, templateName, jobs, ".html");
            jobs.setHtmlurl(htmlurl);
            dao.add(jobs);
        }

    View Code