采用velocity根据模块自动生成java类

pengchua

<div style="padding-right: 5.4pt; padding-left: 5.4pt; background: #e6e6e6; padding-bottom: 4px; width: 95%; padding-top: 4px;">import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringWriter;
import java.util.Properties;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;

public class Test ...{
    private static Properties props = null;    
    /** *//**
     * @param args
     * @throws Exception 
     */
    public static void main(String[] args) throws Exception ...{
        // TODO Auto-generated method stub
        /**//* first, get and initialize an engine */
          VelocityEngine ve = new VelocityEngine();
          ve.init();
          /**//* next, get the Template */
          Template t = ve.getTemplate( "src/Action.vm","gb2312" );  
        //          Template t = ve.getTemplate( "src/Action.vm" );
          //如果改为上面则出现乱码．
          
          /**//* create a context and add data */
          VelocityContext context = new VelocityContext();
          Object[] classNames=null;
//              classNames.add("Jgss");
//              classNames.add("Jgfs");
//              classNames.add("Tcfj");
          classNames=prop2List();
          for(int i=0;i<classNames.length;i++ )...{
          context.put("className", classNames);

          /**//* now render the template into a StringWriter */
          StringWriter writer = new StringWriter();
          t.merge( context, writer );
          
          writeJavaFile(classNames+"Action.java",writer.toString());
        
          /**//* show the World */
         // System.out.println( writer.toString() ); 
          }
    }
    
    
    private static void writeJavaFile(String name, String str) ...{
        try ...{
            FileWriter fw = new FileWriter(new File(name), true);
            BufferedWriter bw = new BufferedWriter(fw);

            // 将读入的字符串写入到文件中
            bw.write(str, 0, str.length());
            bw.flush();
            bw.close();
            fw.close();
        } catch (IOException e) ...{
            System.out.println("Error-- :" + e.toString());
        }
    }

    private static void loadProperties()...{
        props = new Properties();
        try ...{
            props.load(Test.class.getResourceAsStream("action.properties"));
        } catch (IOException e) ...{
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    
    private static Object[] prop2List()...{
        loadProperties();
        System.out.println(props.size());
        if(props.isEmpty())  return null;
        Object[] aa = props.values().toArray();
        return aa;
    }
    
    
}



 部分Action.vm代码：

public ActionForward edit$...{className}(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response)
   throws Exception ...{

  logger.debug("--- edit${className} start ---");
  checkToken(request);
  $...{className}Form $...{className.toLowerCase()}Form = ($...{className}Form)form;

action.properties:

A=Jaaas
B=Jbbbs
C=Tcccs