如何将字符串参数传递给JavaScript函数中的Java方法

Question

我无法在JavaScript中调用Java函数。我想，当我将Var这样的参数传递给字符串方法时，我做错了。请给我你的建议。

function calculateTotalAmount()
{

    var formFldAreaCode = eval("document.AccountsSummaryListing.<%=SWPAppConstants.AREA_CODE%>");   
    alert("area code "+formFldAreaCode.value);
    var formFldExchange = eval("document.AccountsSummaryListing.<%=SWPAppConstants.EXCHANGE%>");
    alert("formFldExchange "+formFldExchange.value);
    var formFldConnector = eval("document.AccountsSummaryListing.<%=SWPAppConstants.CONNECTOR%>");
    alert("formFldConnector code "+formFldConnector.value);
    var formFldConnectorSuffix = eval("document.AccountsSummaryListing.<%=SWPAppConstants.CONNECTOR_SUFFIX%>");
    alert("formFldConnectorSuffix code "+formFldConnectorSuffix.value);
//getting error here            
     var installmentAmount = '<%=smPage.getFreeDomTerminationFee(formFldAreaCode.value,formFldExchange.value,"'formFldConnector.value,formFldConnectorSuffix.value)%>';

    alert("Alert "+installmentAmount);
}

Java方法（）  public String getFreeDomTerminationFee（String areaCode，String exchange，String connector，String suffix）抛出异常     {

    System.out.println("Ramesh areaCode "+areaCode);

m_logMgr.logMessage(LogManager.LOG_EVENT,"AccountsSummaryListing  "+areaCode+"exchange "+exchange+"connector "+connector+" suffix "+suffix, m_FTCuserContext.getCurrentUserId(), 10, 1);        
/*      Connection origConn = m_bussContext.getConnection();
        Connection sosConn = getSOSConnection();
        m_bussContext.setConnection(sosConn);*/ 


    FreedomPlnManager frdmPlnMngr = new FreedomPlnManager(this.m_bussContext, this.m_FTCuserContext);

    String installmentAmount = "0";                     

    FreedomPlnDS freedomPlnDS = frdmPlnMngr.getFreedomPlanDetails(areaCode,exchange ,connector ,suffix);

    //m_bussContext.setConnection(origConn);

    if(freedomPlnDS!= null){
        installmentAmount = freedomPlnDS.getInstallmentAmount();
    }

        m_logMgr.logMessage(LogManager.LOG_EVENT,"AccountsSummaryListing:etfValue =  "+installmentAmount, m_FTCuserContext.getCurrentUserId(), 10, 1);      

    return installmentAmount;
}

Answer 1

JavaScript在浏览器中运行，Java在服务器上运行。您需要从JavaScript进行Ajax调用以调用Java应用程序。你不能简单地“打电话”＃34;直接来自JavaScript的Java方法。