SSH+DWR3

Struts2.318+Spring2.5.6+Hibernate3.x+DWR3
主要步骤如下：
在前一篇SSH整合基础上主要作以下修改：
1，dwr.jar and commons-logging.jar(Place it into the WEB-INF/lib directory of your web application.)
2，web.xml
增加如下：
<servlet><display-name>DWR Servlet</display-name><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></servlet><servlet-mapping><servlet-name>dwr-invoker</servlet-name><url-pattern>/dwr/*</url-pattern></servlet-mapping>
3，WEB-INF下新建一个dwr.xml文件（注意：web.xml与dwr.xml是在同一个目录内），内容如下：


<dwr><allow><create creator="new" javascript="DWRUserAccess"><param name="class" value="com.ebooking.dwr.DWRUserAccess"></create><convert converter="bean" match="com.ebooking.model.EBooking"></convert></allow></dwr>
4，EBooking.java及DWRUserAccess.java:
===========DWRUserAccess.java 开发给前端用的后台服务===========
package com.ebooking.dwr;

import com.ebooking.dao.HelloWordDao;
import com.ebooking.dao.impl.HelloWordDaoImpl;
import com.ebooking.model.EBooking;

public class DWRUserAccess {

HelloWordDao helloWordDao = new HelloWordDaoImpl();

public boolean save(EBooking ebooking) {
System.out.println("in dwr method " + ebooking);
helloWordDao.list();
return true;
}
public boolean list() {
System.out.println("in dwr method ");
helloWordDao.list();
return true;
}
}
======================EBooking.java 为了从js转换成java bean所用========
package com.ebooking.model;

public class EBooking {
private Integer id;
private String name;
private String content;

public Integer getId() {
return id;
}

public void setId(Integer id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getContent() {
return content;
}

public void setContent(String content) {
this.content = content;
}

@Override
public String toString() {
return "name:"+this.name+" content:"+this.content;
}

}
5,前台调用 index.jsp==========


<script src="/ebooking/dwr/engine.js"></script><script src="/ebooking/dwr/util.js"></script><script src="/ebooking/dwr/interface/DWRUserAccess.js"></script><base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>&lt;meta http-equiv="pragma" content="no-cache"&gt;
&lt;meta http-equiv="cache-control" content="no-cache"&gt;
&lt;meta http-equiv="expires" content="0"&gt;
&lt;meta http-equiv="keywords" content="keyword1,keyword2,keyword3"&gt;
&lt;meta http-equiv="description" content="This is my page"&gt;
&lt;!--
&lt;link rel="stylesheet" type="text/css" href="styles.css"&gt;
--&gt;
This is my JSP page.
<a>doMethod</a>
<br>&lt;script type="text/javascript"&gt;
    function doMethod()
    {
    alert("in here.....");
        //调用方法:若公开的类是AAA,公开的AAA里的方法是bbb([参数]);
        var stu = {name:"zhangsan",content:"zspassword"}; //这是json的表示方法
// AAA.bbb(stu,callBack);
        //AAA.bbb([参数],callBack);//回调函数callBack()
        DWRUserAccess.save(stu,callBack);
    }

    function callBack(data)//data是后台返回的值，名字自取，也可省略，因为JS允许
    {
       //如果callBack()没有写明返回值，可以通过argments[0]拿到
       if(data){
       alert("ok");
       }else{
       alert("not ok");
       }
    }
&lt;/script&gt;

启动tomcat,运行：http://localhost:8080/ebooking/
成功后，在后台会看到如下内容：
log4j:WARN No appenders could be found for logger (com.opensymphony.xwork2.config.providers.XmlConfigurationProvider).
log4j:WARN Please initialize the log4j system properly.
setSessionFactory sessionFactory:org.hibernate.impl.SessionFactoryImpl@668de5
in dwr method name:zhangsan content:zspassword
the list method in HelloWordDaoImpl

评论

1 楼 jjxboy 2012-08-13  

能不能发个原始的出处啊？这个代码完全看不懂啊！