dwr helloworld

最新推荐文章于 2025-08-11 17:00:09 发布

原创最新推荐文章于 2025-08-11 17:00:09 发布 · 365 阅读

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文章标签：

#dwr #tomcat #encoding #function #html #javascript

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服务器为tomcat6.0

文件部署如下：

%tomcat_home%/webapps/DWRtest/test.html

%tomcat_home%/webapps/DWRtest/WEB-INF/web.xml

%tomcat_home%/webapps/DWRtest/WEB-INF/dwr.xml

%tomcat_home%/webapps/DWRtest/WEB-INF/lib/dwr.jar

%tomcat_home%/webapps/DWRtest/WEB-INF/lib/commons-logging-1.1.1.jar

%tomcat_home%/webapps/DWRtest/WEB-INF/classes/HelloDWR.class

web.xml如下：

XML code


<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <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如下：

XML code


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">
<dwr>
  <allow>
    <create creator="new" javascript="HelloDWR" scope="application">
      <param name="class" value="test.HelloDWR"/>
    </create>
  </allow>
</dwr>

java代码如下：

Java code


package test;
public class HelloDWR
{
    public String hello()
    {
        return "hello,DWR";
    }
}

html页面如下：

HTML code


<html>
    <head>
        <title>helloDWR</title>
        <script src="/DWRtest/dwr/interface/HelloDWR.js"></script>
        <script src="/DWRtest/dwr/engine.js"></script>

       <script scc="/DWRtest/dwr/util.js"></script>
        <script>
        function sayHello()
        {
            HelloDWR.hello(function(data){document.write(data);});
        }
        </script>
    </head>
    <body>
    <script>
    sayHello();
    </script>
    </body>
</html>