心有猛虎，细嗅蔷薇: WebCenter_019：开发WebCenter Portal 应用：天气预报的例子之一

2011年7月23日星期六

WebCenter_019：开发WebCenter Portal 应用：天气预报的例子之一

首先完成《创建自己的WebCenter Portal/Portlet Server》。
因为这里例子涉及到三个应用，分别部署在三个Server上，这三个应用的开发人员可能不同，这正是开发Portal应用的魅力：用标准的方式集成大家开发的应用。

这里我们假设用户已经开发好了一个天气预报的Web应用。开发工具：JDeveloper 11.1.1.5.0。
该应用非常简单，只有一个普通的jsp页面：weather.jsp，不过大家可以把它想象成一个复杂的应用，比如从后台访问数据库获取数据，然后再展示到前台。

weather.jsp内容如下：根据zipcode参数值，返回该地区的天气状况，是以逗号间隔的CSV格式。
之所以用这种格式，是为了展示ADF URL Service Data Control功能，在下一篇文章将会介绍。


<%
  if (request.getParameter("zipcode") == null || request.getParameter("zipcode").equals("")) {
      out.println("dayOfWeek,hiTemp,img,lowTemp,precip,sky,zipCode");
      out.println("Monday,55,Rainy.gif,45,0,Rainy,94065 Tuesday,85,Sunny.gif,80,0,Sunny,94065");
      out.println("Wednesday,61,PartlyCloudy.gif,50,0,Partly Cloudy,94065");
      out.println("Thursday,80,PartlyCloudy.gif,70,0,Cloudy,94065");
      out.println("Friday,63,Rainy.gif,50,0,Rainy,94065 Saturday,70,Rainy.gif,55,0,Rainy,94065");
      out.println("Sunday,68,PartlySunny.gif,50,0,Partly Sunny,94065");
  } else if  (request.getParameter("zipcode").equals("94065")){  
      out.println("dayOfWeek,hiTemp,img,lowTemp,precip,sky,zipCode");
      out.println("Monday,55,Rainy.gif,45,0,Rainy,94065 Tuesday,85,Sunny.gif,80,0,Sunny,94065");
      out.println("Wednesday,61,PartlyCloudy.gif,50,0,Partly Cloudy,94065");
      out.println("Thursday,80,PartlyCloudy.gif,70,0,Cloudy,94065");
      out.println("Friday,63,Rainy.gif,50,0,Rainy,94065 Saturday,70,Rainy.gif,55,0,Rainy,94065");
      out.println("Sunday,68,PartlySunny.gif,50,0,Partly Sunny,94065");
  } else if (request.getParameter("zipcode").equals("60001")) {
      out.println("dayOfWeek,hiTemp,img,lowTemp,precip,sky,zipCode");
      out.println("Monday,55,Rainy.gif,45,0,Rainy,60001");
      out.println("Tuesday,85,Rainy.gif,80,0,Rainy,60001");
      out.println("Wednesday,61,PartlyCloudy.gif,50,0,Partly Cloudy,60001");
      out.println("Thursday,80,PartlyCloudy.gif,70,0,Cloudy,60001");
      out.println("Friday,63,Rainy.gif,50,0,Rainy,60001");
      out.println("Saturday,70,Rainy.gif,55,0,Rainy,60001");
      out.println("Sunday,68,PartlyCloudy.gif,50,0,Partly Sunny,60001");
  } else if (request.getParameter("zipcode").equals("90001")) {
    out.println("dayOfWeek,hiTemp,img,lowTemp,precip,sky,zipCode");
    out.println("Monday,70,PartlyCloudy.gif,55,0,Partly Cloudy,90001");
    out.println("Tuesday,80,PartlyCloudy.gif,70,0,Cloudy,90001");
    out.println("Wednesday,85,PartlyCloudy.gif,80,0,Sunny,90001");
    out.println("Thursday,68,PartlySunny.gif,50,0,Partly Sunny,90001");
    out.println("Friday,63,PartlySunny.gif,50,0,Partly Sunny,90001");
    out.println("Saturday,61,PartlyCloudy.gif,50,0,Partly Cloudy,90001");
    out.println("Sunday,55,Rainy.gif,45,0,Rainy,90001");
  } else if (request.getParameter("zipcode").equals("94401")) {
    out.println("dayOfWeek,hiTemp,img,lowTemp,precip,sky,zipCode");
    out.println("Monday,55,Sunny.gif,45,0,Sunny,94401");
    out.println("Tuesday,85,Sunny.gif,80,0,Sunny,94401");
    out.println("Wednesday,61,Sunny.gif,50,0,Sunny,94401");
    out.println("Thursday,80,Sunny.gif,70,0,Cloudy,94401");
    out.println("Friday,63,PartlyRainy.gif,50,0,Partly Sunny,94401");
    out.println("Saturday,70,PartlySunny.gif,55,0,Partly Sunny,94401");
    out.println("Sunday,68,PartlySunny.gif,50,0,Partly Sunny,94401");
  } else if (request.getParameter("zipcode").equals("94402")) {
    out.println("dayOfWeek,hiTemp,img,lowTemp,precip,sky,zipCode");
    out.println("Monday,55,Rainy.gif,45,0,Rainy,94402");
    out.println("Tuesday,85,Rainy.gif,80,0,Rainy,94402");
    out.println("Wednesday,61,PartlyCloudy.gif,50,0,Partly Cloudy,94402");
    out.println("Thursday,80,PartlyCloudy.gif,70,0,Cloudy,94402");
    out.println("Friday,63,Sunny.gif,50,0,Sunny,94402");
    out.println("Saturday,70,Sunny.gif,55,0,Sunny,94402");
    out.println("Sunday,68,PartlySunny.gif,50,0,Partly Sunny,94402");
  }
%>

应用重要开发步骤如下：
（1）