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1. 编写HelloWorldPortlet,HelloJSPPortlet类

 1package com.educhina.portal;
 2
 3import javax.portlet.GenericPortlet;
 4import java.io.IOException;
 5import javax.portlet.PortletException;
 6import javax.portlet.PortletRequestDispatcher;
 7import javax.portlet.RenderRequest;
 8import javax.portlet.RenderResponse;
 9
10
11public class HelloJSPPortlet extends GenericPortlet {
12    public void doView(RenderRequest req, RenderResponse res)
13    throws IOException,PortletException
14    {
15        res.setContentType("text/html");
16        String jspName=getPortletConfig().getInitParameter("view-jsp");
17        PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher(jspName);
18        rd.include(req,res);
19        
20    }

21    public void doEdit(RenderRequest req, RenderResponse res)
22    throws IOException,PortletException
23    {
24        res.setContentType("text/html");
25        String jspName=getPortletConfig().getInitParameter("edit-jsp");
26        PortletRequestDispatcher rd=getPortletContext().getRequestDispatcher(jspName);
27        rd.include(req,res);        
28    }

29    
30}

31

HelloJSPPortlet: 调用jsp.

 1package com.educhina.portal;
 2
 3import java.io.IOException;
 4import javax.portlet.GenericPortlet;
 5import javax.portlet.RenderRequest;
 6import javax.portlet.RenderResponse;
 7import javax.portlet.PortletException;
 8public class HelloWorldPortlet extends GenericPortlet{
 9    public void doView(RenderRequest req, RenderResponse res) 
10     throws IOException,PortletException
11    {
12        res.setContentType("text/html");
13        res.getWriter().println("hello world");
14        
15    }

16    public void doEdit(RenderRequest req, RenderResponse res)
17    throws IOException,PortletException
18    {
19        res.setContentType("text/html");
20        res.getWriter().println("hello world");
21    }

22
23}

HelloWorldPortlet:直接输出到portlet

2.为HelloJSPPortlet建立jsp页面.代码如下:

 1<table cellpadding="8" cellspacing="0" width="100%">
 2    <tr>
 3        <td>
 4            <font class="Portlet-font" style="font-size:x-small;">
 5                this is a <b>Sample JSP Portlet</b> used in viewing in viewing model. use this a quick 
 6                way to include jsps.
 7            </font>
 8        </td>
 9    </tr>
10</table>
11

注意:不能包含有<head><bady><html>的标签.只能包含原来是<body></body>内部的html内容,<head>,<body> <html>信息由Portal页面来提供.  只在在jsp页面里使用了

1<%@taglib uri="http://java.sun.com/portlet" prefix="portlet" %>
2<portlet:defineObjects/>

才可以直接操作portlet的一些变量,比如renderResponse, renderRequest, PortletConfig .

3.部署liferay portal
  一>修改portlet.xml文件(C:\liferay-portal-tomcat-jdk5-4.2.1\webapps\ROOT\WEB-INF)中.
portlet定义portlet初始化信息
在<portlet-app>节点下增加:

 1<portlet>
 2        <portlet-name>HelloWorldPortlet</portlet-name>
 3        <display-name>HelloWorldPortlet</display-name>
 4        <portlet-class>com.educhina.portal.HelloWorldPortlet</portlet-class>
 5        <expiration-cache>0</expiration-cache>
 6        <supports>
 7            <mime-type>text/html</mime-type>
 8        </supports>
 9            <supports>
10            <mime-type>text/html</mime-type>
11            <portlet-mode>edit</portlet-mode>
12        </supports>
13        <portlet-info>
14          <title>HelloWorldPortlet</title>
15          <short-title>HelloWorldPortlet</short-title>
16          <keywords>HelloWorldPortlet</keywords>
17        </portlet-info>
18        <security-role-ref>
19            <role-name>guest</role-name>
20        </security-role-ref>
21        <security-role-ref>
22            <role-name>power-user</role-name>
23        </security-role-ref>
24        <security-role-ref>
25            <role-name>user</role-name>
26        </security-role-ref>
27    </portlet>
28    <portlet>
29        <portlet-name>HelloJSPPortlet</portlet-name>
30        <display-name>HelloJSPPortlet</display-name>
31        <portlet-class>com.educhina.portal.HelloJSPPortlet</portlet-class>
32        <init-param>
33            <name>view-jsp</name>
34            <value>/portlet/testPortlet/view.jsp</value>
35        </init-param>
36        <init-param>
37            <name>edit-jsp</name>
38            <value>/portlet/testPortlet/edit.jsp</value>
39        </init-param>
40        <expiration-cache>0</expiration-cache>
41        <supports>
42            <mime-type>text/html</mime-type>
43        </supports>
44            <supports>
45            <mime-type>text/html</mime-type>
46            <portlet-mode>edit</portlet-mode>
47        </supports>
48        <portlet-info>
49          <title>HelloJSPPortlet</title>
50          <short-title>HelloJSPPortlet</short-title>
51          <keywords>HelloJSPPortlet</keywords>
52        </portlet-info>
53        <security-role-ref>
54            <role-name>guest</role-name>
55        </security-role-ref>
56        <security-role-ref>
57            <role-name>power-user</role-name>
58        </security-role-ref>
59        <security-role-ref>
60            <role-name>user</role-name>
61        </security-role-ref>
62    </portlet>

注意:
 <init-param>
   <name>edit-jsp</name>
   <value>/portlet/testPortlet/edit.jsp</value>
  </init-param> 
告诉系jsp的位置,也就是HelloJSPPortlet类中
 String jspName=getPortletConfig().getInitParameter("view-jsp");
  PortletRequestDispatcher rd = getPortletContext().getRequestDispatcher(jspName);
  rd.include(req,res);
所用到的.
所以编写好的edit.jsp放入(C:\liferay-portal-tomcat-jdk-mytest\webapps\ROOT\html\portlet\testPortlet)中.
      二>修改liferay-portay.xml ------定义portlet模板,实例总数,是否允许重重定义等
<liferay-portay-app>节点下:

 1 <portlet>
 2        <portlet-name>HelloWorldPortlet</portlet-name>
 3        <struts-path>HelloWorldPortlet</struts-path>
 4        <use-default-template>true</use-default-template>
 5      <instanceable>true</instanceable>
 6    </portlet>
 7    <portlet>
 8        <portlet-name>HelloJSPPortlet</portlet-name>
 9        <struts-path>HelloJSPPortlet</struts-path>
10        <use-default-template>true</use-default-template>
11      <instanceable>true</instanceable>
12    </portlet>

    三>修改:liferay-display.xml---定义portlet所属的类别.liferay Portal定义了一个category.test类别.将HelloWorldPortlet和HelloJSPPortlet归属于category.test
 <category name="category.test">
   <portlet id="HelloWorldPortlet" />
  <portlet id="HelloJSPPortlet" />
  <portlet id="47" />
</category>

另外把两个类包拷贝到(C:\liferay-portal-tomcat-jdk-mytest\webapps\ROOT\WEB-INF\classes)目录下.
运行bin/startup.bat ok!

 


 

 



 


 


 


 

 

posted on 2007-04-19 09:24 lixiaoji 阅读(1047) 评论(0)  编辑  收藏

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