Grails Ajax Timer

我正在開發一個遷移程序，它將數據從sybase傳輸到grails中的postgresql。在後端，一個grails遷移服務正在專用線程中運行。在前端，我想要顯示grails服務需要多少數據和多少時間。在這一刻，我只能手動刷新gsp頁面，以便當前時間可以在gsp頁面上顯示數據的數量。但是，一個好主意是通過ajax定時器自動刷新gsp頁面。我嘗試在HTML上使用setInterval或setTimeOut，但它根本不起作用。以下是我的Grails控制器和相應的視圖Grails Ajax Timer

def migrateSchuldner() { 
    def isRunning = personMigrationThreadService.isRunning() // boolean is the Service is running 
    def results = MigrationRun.findAllByEndDateIsNull() 
    def threadInfo 
    if (results.empty) { 
     def runCounter = personMigrationService.lastRun() 
     threadInfo = MigrationRun.findByCounter(runCounter) // threadInfo contains the Date and processedData and ErrorData 
    } 
    else { 
     threadInfo = results.get(0) 
    } 
    render view: 'migrateSchuldner', model: [threadInfo: threadInfo, isRunning: isRunning] 
}

相應的觀點是：

<%@ page import="de.rvgmbh.nemesis.domain.security.Role" %> 
<sec:ifAnyGranted roles="ROLE_ADMIN,ROLE_MIGRATION"> 
<g:applyLayout name="mainSecured" params="[currentTopNavigationIndex: 'migration', currentLeftNavigationIndex: 3]"> 
    <head> 
     <title>${message(code: 'page.migration.migrate.SchuldnerData.headline.show')} 
    </title> 
    </head> 

    <body> 
    <div class="span-20 rightBorder"> 
     <h3>${message(code: "page.migration.migrate.schuldnerData.headline.show")}</h3> 
    </div> 

    <fieldset id="migration-form"> 
     <table> 
      <tr><td style="background-color: transparent"> 
       <g:if test="${isRunning}"> 
        <legend> 
         ${message(code: 'page.migration.migrate.SchuldnerData.migrationInProgress')} 
        </legend> 
       </g:if> 
       <g:else> 
        <g:form action="migrateSchuldnerButtonClick" method="post" useToken="true"> 
         ${message(code: 'page.migration.migrate.SchuldnerData.legend.text')} 
         <input type="submit" 
           value= ${message(code: "page.migration.migrate.SchuldnerData.submit.text")}> 
        </g:form> 
       </g:else> 
       <g:if test="${threadInfo}"> 
        <g:if test="${!isRunning}"> 
         <legend> 
          ${message(code: 'page.migration.migrate.SchuldnerData.lastResult')} 
         </legend> 
        </g:if> 
        <ul> 
         <li> 
          <label>${message(code: 'page.migration.migrate.SchuldnerData.currentTime')}:</label> 
          <p>${threadInfo.currentRuntime}</p> 
         </li> 
         <li> 
          <label>${message(code: 'page.migration.migrate.SchuldnerData.processedPersons')}:</label> 

          <p>${threadInfo.processedPersons}</p> 
         </li> 
         <li> 
          <label>${message(code: 'page.migration.migrate.SchuldnerData.personErrors')}:</label> 

          <p>${threadInfo.personErrors}</p> 
         </li> 
         <li> 
          <label>${message(code: 'page.migration.migrate.SchuldnerData.processedPersonData')}:</label> 

          <p>${threadInfo.processedPersonData}</p> 
         </li> 
         <li> 
          <label>${message(code: 'page.migration.migrate.SchuldnerData.dataErrors')}:</label> 

          <p>${threadInfo.dataErrors}</p> 
         </li> 
        </ul> 
       </g:if> 
      </td></tr> 
     </table> 
    </fieldset> 
    </body> 
</g:applyLayout>

的東西是可變currentRuntime，processedPersons ......總是線程內更新。我必須刷新gsp視圖以獲取當前時間和processedPersons。有沒有人有這阿賈克斯定時器我應該使用要達到的目標

來源

2012-04-03 hyd198471

你能告訴你的Javascript代碼？ – 2012-04-03 09:37:47

1）progress.gsp將整個<fieldset id="migration-form">到一個單獨的動作，比方說，一個progress想法。在主要頁面

def progress = { 
    [threadInfo: threadInfo] 
}

：封閉動作include成一個div id爲

<div id="migration_progress"> 
    <g:include action="progress" model="[threadInfo: threadInfo]"> 
</div>

2）使用remoteFunction通過像定時更新migration_progress格：

onsomething="${remoteFunction(action: 'progress', update: 'migration_progress')"

來源

2012-04-03 12:07:48

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