portlet初学习及HelloWorld例子

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Servlet XML SUN Web JSP
在myeclipse中新建一个web project，在src中新建如下类：

 
Java代码

   1. package com.yoyo.portlet;  
   2.   
   3. import java.io.IOException;  
   4.   
   5. import javax.portlet.GenericPortlet;  
   6. import javax.portlet.PortletException;  
   7. import javax.portlet.PortletRequestDispatcher;  
   8. import javax.portlet.RenderRequest;  
   9. import javax.portlet.RenderResponse;  
  10.   
  11. public class TestPortlet extends GenericPortlet  
  12. {  
  13.   
  14.     public void doView(RenderRequest request, RenderResponse response) throws PortletException, IOException   
  15.     {  
  16.         response.setContentType("text/html");  
  17.           
  18.         PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher("/index.jsp");  
  19.       
  20.         rd.include(request, response);  
  21.     }  
  22.       
  23.     public void doEdit(RenderRequest request, RenderResponse response) throws PortletException, IOException   
  24.     {  
  25.         response.setContentType("text/html");  
  26.       
  27.         String jspName = getPortletConfig().getInitParameter("jspEdit");  
  28.       
  29.         PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher(  
  30.                 jspName);  
  31.       
  32.         rd.include(request, response);  
  33.     }  
  34. }  

package com.yoyo.portlet;

import java.io.IOException;

import javax.portlet.GenericPortlet;
import javax.portlet.PortletException;
import javax.portlet.PortletRequestDispatcher;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

public class TestPortlet extends GenericPortlet
{

	public void doView(RenderRequest request, RenderResponse response) throws PortletException, IOException 
	{
		response.setContentType("text/html");
		
		PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher("/index.jsp");
	
		rd.include(request, response);
	}
	
	public void doEdit(RenderRequest request, RenderResponse response) throws PortletException, IOException 
	{
		response.setContentType("text/html");
	
		String jspName = getPortletConfig().getInitParameter("jspEdit");
	
		PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher(
				jspName);
	
		rd.include(request, response);
	}
}

 

 

2. 在WebRoot/WEB-INF下面新建一个portlet.xml的文件，里面内容如下：

 
Xml代码

   1. <?xml version="1.0" encoding="UTF-8"?>  
   2. <portlet-app xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"  
   3.     version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
   4.     xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd  
   5.                         http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd">  
   6.   
   7.     <portlet>  
   8.         <description>Test the portlet</description>  
   9.         <portlet-name>hello</portlet-name>  
  10.         <display-name>test portlet</display-name>  
  11.         <portlet-class>com.yoyo.portlet.TestPortlet</portlet-class>  
  12.           
  13.         <expiration-cache>-1</expiration-cache>  
  14.         <supports>  
  15.             <mime-type>text/html</mime-type>  
  16.             <portlet-mode>VIEW</portlet-mode>  
  17.             <portlet-mode>EDIT</portlet-mode>  
  18.         </supports>  
  19.         <supported-locale>en</supported-locale>  
  20.         <portlet-info>  
  21.             <title>TEst the portlet</title>  
  22.             <short-title>test</short-title>  
  23.             <keywords>test,portlet</keywords>  
  24.         </portlet-info>  
  25.     </portlet>  
  26.       
  27. </portlet-app>  

<?xml version="1.0" encoding="UTF-8"?>
<portlet-app xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"
	version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd
                        http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd">

	<portlet>
		<description>Test the portlet</description>
		<portlet-name>hello</portlet-name>
		<display-name>test portlet</display-name>
		<portlet-class>com.yoyo.portlet.TestPortlet</portlet-class>
		
		<expiration-cache>-1</expiration-cache>
		<supports>
			<mime-type>text/html</mime-type>
			<portlet-mode>VIEW</portlet-mode>
			<portlet-mode>EDIT</portlet-mode>
		</supports>
		<supported-locale>en</supported-locale>
		<portlet-info>
			<title>TEst the portlet</title>
			<short-title>test</short-title>
			<keywords>test,portlet</keywords>
		</portlet-info>
	</portlet>
	
</portlet-app>

 

 

3. 修改WebRoot/WEB-INF下面的web.xml文件，内容如下：

 
Xml代码

   1. <?xml version="1.0" encoding="UTF-8"?>  
   2. <web-app version="2.4"   
   3.     xmlns="http://java.sun.com/xml/ns/j2ee"   
   4.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
   5.     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   
   6.     http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">  
   7.       
   8.     <servlet>  
   9.         <servlet-name>test</servlet-name>  
  10.         <servlet-class>org.apache.pluto.core.PortletServlet</servlet-class>  
  11.         <init-param>  
  12.             <param-name>portlet-name</param-name>  
  13.             <param-value>hello</param-value>  
  14.         </init-param>  
  15.         <load-on-startup>1</load-on-startup>  
  16.     </servlet>  
  17.       
  18.     <!-- 下面的<servlet-name>test</servlet-name>中的test和上面的<servlet></servlet>中<servlet-name></servlet- name>的名字对应 -->  
  19.     <!-- 下面的<url-pattern>/PlutoInvoker/hello</url-pattern>中的hello则与 portlet.xml中<portlet></portlet>中<portlet-name>< /portlet-name>的名字对应-->  
  20.     <servlet-mapping>  
  21.         <servlet-name>test</servlet-name>  
  22.         <url-pattern>/PlutoInvoker/hello</url-pattern>  
  23.     </servlet-mapping>  
  24.     <welcome-file-list>  
  25.         <welcome-file>index.jsp</welcome-file>  
  26.     </welcome-file-list>  
  27. </web-app>  

<?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>test</servlet-name>
		<servlet-class>org.apache.pluto.core.PortletServlet</servlet-class>
		<init-param>
			<param-name>portlet-name</param-name>
			<param-value>hello</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	
	<!-- 下面的<servlet-name>test</servlet-name>中的test和上面的<servlet></servlet>中<servlet-name></servlet-name>的名字对应 -->
	<!-- 下面的<url-pattern>/PlutoInvoker/hello</url-pattern>中的hello则与portlet.xml中<portlet></portlet>中<portlet-name></portlet-name>的名字对应-->
	<servlet-mapping>
		<servlet-name>test</servlet-name>
		<url-pattern>/PlutoInvoker/hello</url-pattern>
	</servlet-mapping>
  	<welcome-file-list>
    	<welcome-file>index.jsp</welcome-file>
  	</welcome-file-list>
</web-app>

 

4. 将tomcat/shared/lib下面的jar包引到项目中来（我的里面已经放好了，是做其他项目用的到的，在这个中可能有些jar包不需要），这些 jar包如下：castor-1.1.1.jar，commons-codec-1.3.jar，commons-httpclient- 3.0.1.jar，commons-logging.jar，log4j-1.2.11.jar，pluto-container- 1.1.6.jar，pluto-descriptor-api-1.1.6.jar，pluto-descriptor-impl- 1.1.6.jar，pluto-taglib-1.1.6.jar，portlet-api- 1.0.jar，simpleAuthClient.jar，xpp3_min-1.1.4c.jar，xstream-1.3.jar。

 

 

经过以上步骤，一个简单的portlet就建好了。下载pluto-current-bundle包，解压后启动bin目录下的startup.bat，打开http://localhost:8080/pluto/portal，登陆进去后，选择上面的Pluto Admin，新建一个页面，并在下面选择自己的portlet项目，这样就可以查看效果了。
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