Java/Velocity/HTML

Материал из Java эксперт
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Use Velocity to generate HTML based email

import java.io.StringWriter;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
public class EmailDemo
{
    public static void main( String[] args )
        throws Exception
    {
        /*
         *   first, get and initialize an engine
         */
        VelocityEngine ve = new VelocityEngine();
        ve.init();
        /*
         *   organize our data 
         */
        ArrayList list = new ArrayList();
        Map map = new HashMap();
        map.put("name", "Cow");
        map.put("price", "$100.00");
        list.add( map );
 
        map = new HashMap();
        map.put("name", "Eagle");
        map.put("price", "$59.99");
        list.add( map );
        map = new HashMap();
        map.put("name", "Shark");
        map.put("price", "$3.99");
        list.add( map );
        /*
         *  add that list to a VelocityContext
         */
        VelocityContext context = new VelocityContext();
        context.put("petList", list);
        /*
         *   get the Template  
         */
        Template t = ve.getTemplate( "./src/email_html.vm" );
        /*
         *  now render the template into a Writer, here 
         *  a StringWriter 
         */
        StringWriter writer = new StringWriter();
        t.merge( context, writer );
        /*
         *  use the output in the body of your emails
         */
        System.out.println( writer.toString() );
    }
}
-------------------------------------------------------------------------------------
  <HTML>
    <HEAD>
      <TITLE>Pet Store Sale!</TITLE>
    </HEAD>

    <BODY>
      <CENTER>
      <B>$petList.size() Pets on Sale!</B>
      
      <BR/>
      This is an email generated by velocity
      <BR/>
      This month only, choose from :
    
      #set( $count = 1 )  
      <TABLE>
        #foreach( $pet in $petList )
          <TR>
            <TD>$count)</TD>
            <TD>$pet.name</TD>
            <TD>$pet.price</TD>
          </TR>
          #set( $count = $count + 1 )
        #end
      </TABLE>
      
     <I>Call Today!</I>
     Bests <br>
     www.jexp.ru
      </CENTER>
 
    </BODY>
  </HTML>





Use Velocity to generate HTML document

-------------------------------------------------------------------------------------
import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.tools.generic.RenderTool;
public class VMDemo {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template t = Velocity.getTemplate("./src/VMDemo.vm");
    VelocityContext ctx = new VelocityContext();
    Writer writer = new StringWriter();
    t.merge(ctx, writer);
    System.out.println(writer);
  }
}
-------------------------------------------------------------------------------------
<html>
    <head>
        <title>Gimli"s Widgetarium</title>
    </head>
    <body>
        <table>
            #set ($rowCount = 1)            
            #set ($products = ["one", "two", "three"])
            #foreach($product in $products)
                #if ($rowCount % 2 == 0)
                    #set ($bgcolor = "#FFFFFF")
                #else
                    #set ($bgcolor = "#CCCCCC")                
                #end
                <tr>
                    <td bgcolor="$bgcolor">$product</td>
                    <td bgcolor="$bgcolor">$product</td>
                </tr>                        
                #set ($rowCount = $rowCount + 1)
            #end
        </table>
    </body>
</html>





Velocity Generate Document: anakia task

Velocity works With HTML

import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.tools.generic.RenderTool;
public class VMDemo {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template t = Velocity.getTemplate("./src/VMDemo.vm");
    VelocityContext ctx = new VelocityContext();
    Writer writer = new StringWriter();
    t.merge(ctx, writer);
    System.out.println(writer);
  }
}
-------------------------------------------------------------------------------------
#set ($companyName = "Name")
<html>
  <head>
    <title>$companyName Homepage</title>
  </head>
  <body>
    <h1>Welcome!!</h1>
    #if ($userType == "VIP")
      <h2>You are a VIP!</h2>
    #else
      <h2>You are not a VIP!</h2>
    #end
  </body>
</html>