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分享有关ajax问题(帮帮忙看一下吧)
各位大姐,大哥帮我看一下吧.
我用的是dwr 开发环境eclipse 不知道为什么总是调试不出下面是原代码
我把dwr.jar文件放在 工程文件的 \WebRoot\WEB-INF\lib 下面 工程名叫ajax.
有个叫 DWRTest.java 代码如下
package a;
public class DWRTest {
public DWRTest(){
}
public String getMyName(){
return "James Fang";
}
}
web.xml文件如下
?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>uk.ltd.getahead.dwr.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>
</web-app>
dwr.xml文件如下
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN" "http://www.getahead.ltd.uk/dwr//dwr20.dtd">
<dwr>
<allow>
<create creator="new" javascript="MyTest" scope="application">
<param name="class" value="a.DWRTest"/>
</create>
</allow>
</dwr>
a.jsp代码如下.
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'a.jsp' starting page</title>
<script type='text/javascript' src='/a/dwr/interface/MyTest.js'></script>
<script type='text/javascript' src='/a/dwr/engine.js'></script>
<script type='text/javascript' src='/a/dwr/util.js'></script>
<script language="javascript">
function showMyName(){
document.getElementById("myTest").innerText=MyTest.getMyName();
}
</script>
</head>
<body>
<input type="button" value="setMyName" onclick="javascript:showMyName()"><br>
<div id="myTest">
</div>
</body>
</html>
提示说mytest没定义
我用的是dwr 开发环境eclipse 不知道为什么总是调试不出下面是原代码
我把dwr.jar文件放在 工程文件的 \WebRoot\WEB-INF\lib 下面 工程名叫ajax.
有个叫 DWRTest.java 代码如下
package a;
public class DWRTest {
public DWRTest(){
}
public String getMyName(){
return "James Fang";
}
}
web.xml文件如下
?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>uk.ltd.getahead.dwr.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>
</web-app>
dwr.xml文件如下
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN" "http://www.getahead.ltd.uk/dwr//dwr20.dtd">
<dwr>
<allow>
<create creator="new" javascript="MyTest" scope="application">
<param name="class" value="a.DWRTest"/>
</create>
</allow>
</dwr>
a.jsp代码如下.
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'a.jsp' starting page</title>
<script type='text/javascript' src='/a/dwr/interface/MyTest.js'></script>
<script type='text/javascript' src='/a/dwr/engine.js'></script>
<script type='text/javascript' src='/a/dwr/util.js'></script>
<script language="javascript">
function showMyName(){
document.getElementById("myTest").innerText=MyTest.getMyName();
}
</script>
</head>
<body>
<input type="button" value="setMyName" onclick="javascript:showMyName()"><br>
<div id="myTest">
</div>
</body>
</html>
提示说mytest没定义
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bubizhidao 2007-11-20
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你放在 body里 试试
ruanguanfei 2007-11-20
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<script type= 'text/javascript ' src= '/a/dwr/interface/MyTest.js '> </script>
<script type= 'text/javascript ' src= '/a/dwr/engine.js '> </script>
<script type= 'text/javascript ' src= '/a/dwr/util.js '> </script>
把它改为:
<script type= 'text/javascript ' src= './dwr/interface/MyTest.js '> </script>
<script type= 'text/javascript ' src= './dwr/engine.js '> </script>
<script type= 'text/javascript ' src= './dwr/util.js '> </script>
<script type= 'text/javascript ' src= '/a/dwr/engine.js '> </script>
<script type= 'text/javascript ' src= '/a/dwr/util.js '> </script>
把它改为:
<script type= 'text/javascript ' src= './dwr/interface/MyTest.js '> </script>
<script type= 'text/javascript ' src= './dwr/engine.js '> </script>
<script type= 'text/javascript ' src= './dwr/util.js '> </script>
