在瀏覽器上查看數據

Question

我有一個域名，如URL，lastModified等現在我想查看我從這段代碼到列表頁面的信息。我該怎麼辦THT

def url = new URL("http://www.google.com") 
HttpURLConnection connection = (HttpURLConnection)url.openConnection() 
// long contentLength = Long.parseLong(connection.getHeaderField("Content-Length")); 
connection.setRequestMethod("GET") 
connection.connect() 
connection.getURL() 
println("Date: " + new Date(connection.getDate())) 
println("LastModified Date:" + new Date(connection.getLastModified())) 
if (connection.responseCode == 200 || connection.responseCode == 201){ 
    def returnMessage = connection.content 

    //print out the full response 
    println "${returnMessage}"; 
    System.out.println(connection.getURL()); 
} else { 
    println "Error Connecting to " + url 
    println "Couldn't connect to url" 
} 

Answer 1

從你的控制器，你可以使用render方法，

render returnMessage 

（見http://grails.org/doc/2.0.x/ref/Controllers/render.html）

或模型傳遞到GSP頁面，然後從gsp打印，

return [returnMsg: returnMessage] 

....(in .gsp) 
${returnMsg} 

（見http://grails.org/doc/2.0.x/guide/theWebLayer.html#GSPBasics）