Dwr-ajax Open Source Framework

DWR Full Name Direct WEB Remoting principle transforms Java code into JS object for cross-domain access

Xml

<?xml version= "1.0"  encoding= "UTF-8"? ><web-app xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "    xmlns=" Http://java.sun.com/xml/ns/javaee " xmlns:web="/HTTP/ Java.sun.com/xml/ns/javaee/web-app_2_5.xsd "    xsi:schemalocation=" Http://java.sun.com/xml /ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "    id=" WebApp_ID "  version= "2.5" ><display-name>DWR  (direct web remoting) </display-name>   <description>A Simple Demo DWR</description>  <listener>     <listener-class>org.directwebremoting.servlet.DwrListener</listener-class>   </listener>    <servlet>    <servlet-name> Dwr-invoker</servlet-name>    <servlet-class> org.directwebremoting.servlet.dwrservlet</servlet-class>        <init-param>      < param-name>debug</param-name>      <param-value>true</ param-value>    </init-param>      < load-on-startup>1</load-on-startup>  </servlet>     < servlet-mapping>    <servlet-name>dwr-invoker</servlet-name>     <url-pattern>/dwr/*</url-pattern>  </servlet-mapping>     </web-app>

Dwr.xml

<?xml version= "1.0"  encoding= "UTF-8"? ><! doctype dwr public  "-//getahead limited//dtd direct web remoting 3.0// EN " " HTTP://GETAHEAD.ORG/DWR/DWR30.DTD "><dwr>  <allow>     <!--    <filter class= "Com.example.dwr.monitor.MonitoringAjaxFilter"/>     <filter class= "Org.directwebremoting.filter.ExtraLatencyAjaxFilter" >       <param name= "delay"  value= "/>    </filter" >    -->    <!-- intro - for the  Test on index.html -->    <create creator= "New" >       <param name= "Class"  value= "ORG.KONGHAO.DWR.MODEL.MYDWR"/>     </create>    <convert conVerter= "Bean"  match= "Org.konghao.dwr.model.User"/>    <convert converter= " Bean " match=" Org.konghao.dwr.model.Group "/>        <convert  match= "Java.lang.Exception"  converter= "Exception"/>    <convert  Converter= "Bean"  match= "java.lang.StackTraceElement"/>  </allow></dwr>

package org.konghao.dwr.model;import java.io.file;import java.io.ioexception;import  java.io.inputstream;import java.util.arraylist;import java.util.list;import  javax.servlet.http.httpservletrequest;import org.apache.commons.io.fileutils;import  org.apache.commons.io.filenameutils;import org.directwebremoting.webcontext;import  Org.directwebremoting.webcontextfactory;public class mydwr {    public  string hello (String world)  {         System.out.println ("hello " +world);        return  "Hello   "+world;    }        public user  Load ()  {        user u = new user (1, "Zhang San", New  group (1, "Finance Office")); &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;RETURN&NBSP;U;&NBSP;&NBsp;  }        public list<user> list ()  {        List<User> users = new  Arraylist<user> ();         users.add (New User (1, "Zhang San", New  group (1, "Finance Office"));         users.add (New user (2, "John Doe", new  group (2, "Science and Technology Branch"));         users.add (New user (3, "Harry", new  group (3, "propaganda Department")));        return users;     }        public void add (User user)  {         system.out.println (user);    }     public void deleteuser ()  {        throw new  myexception ("Error while deleting the user");  &nBsp;  }        public int add (int a,int  b)  {        return a+b;    }         public string upload (Inputstream is,string filename)  throws ioexception {        // Webcontext can get HttpServlet objects         WebContext wc =  Webcontextfactory.get ();         httpservletrequest req =  wc.gethttpservletrequest ();         string realpath =  req.getsession (). Getservletcontext (). Getrealpath ("Upload");         string fn = filenameutils.getname (filename);         string filepath = realpath+ "/"+fn;        fileutils.copyinputstreamtofile (Is, new File ( filepath));         return filepath;    }}

package org.konghao.dwr.model;public class myexception extends runtimeexception  {    public myexception ()  {        super ();         // todo auto-generated constructor stub     }    public myexception (string message, throwable  cause)  {        super (message, cause);         // TODO Auto-generated constructor stub     }    public myexception (string message)  {         super (message);         // todo  Auto-generated constructor stub    }    public  MyException (Throwable cauSE)  {        super (cause);         // todo auto-generated constructor stub    }}

Package org.konghao.dwr.model;public class user {    private int  id;    private string username;    private group  group;    public int getid ()  {         return id;    }    public void setid (int  id)  {        this.id = id;     }    public string getusername ()  {         return username;    }    public void  Setusername (String username)  {        this.username =  username;    }    public group getgroup ()  {         return group;    }    public void setgroup ( Group group)  {        this.group = group;     }    public user (Int id, string username, group  group)  {        super ();         this.id = id;        this.username =  username;        this.group = group;     }    public user ()  {        super ( );    }     @Override     public String  ToString ()  {        return  "user [id="  + id  +  ",  usErname= " + username + ",  group= " + group                 +  "]";     }}

Package org.konghao.dwr.model;public class group {    private int  id;    private String name;             public int getid ()  {         return id;    }    public void setid (Int id)  {        this.id = id;    }     public string getname ()  {         Return name;    }    public void setname (String  Name)  {        this.name = name;     }    public group (Int id, string name)  {         sUper ();        this.id = id;         this.name = name;    }    public  Group ()  {        super ();    }      @Override     public string tostring ()  {         return  "group [id="  + id +  " name="  +  name +  "]";     }        }

No refresh upload file

<%@ page language= "java"  contenttype= "Text/html; charset=utf-8"      pageencoding= "UTF-8"%><! doctype html public  "-//w3c//dtd html 4.01 transitional//en"   "HTTP// Www.w3.org/TR/html4/loose.dtd ">

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Dwr-ajax Open Source Framework