APN没有规定？ [英] APN is not specified?

问题描述

IAM创建的HttpConnection，但运行应用程序时，它提供以下异常？

iam creating httpConnection ,but when run the application it gives following exception ?

java.io.IOException异常
未指定APN？

java.io.IOException APN is not specified ?

推荐答案

我想看到开发人员知识库文章：链​​接可以解决你的问题
<一href=\"http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800451/800563/What_Is_-_Different_ways_to_make_an_HTTP_or_socket_connection.html?nodeid=826935&vernum=0\" rel=\"nofollow\">http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800451/800563/What_Is_-_Different_ways_to_make_an_HTTP_or_socket_connection.html?nodeid=826935&vernum=0

I think the See the Developer Knowledge Base article: link can solve your problem http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800451/800563/What_Is_-_Different_ways_to_make_an_HTTP_or_socket_connection.html?nodeid=826935&vernum=0

也看到这个示例code

also see this sample code

private static String getConnectionString(){
    String connectionString="";
    if(WLANInfo.getWLANState()==WLANInfo.WLAN_STATE_CONNECTED){
        connectionString="?;interface=wifi";
    }

    else if((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS){
         connectionString = "?;&deviceside=false";
    }
    else if((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_DIRECT)==CoverageInfo.COVERAGE_DIRECT){
        String carrierUid=getCarrierBIBSUid();
        if(carrierUid == null) {
            connectionString = "?;deviceside=true";
        }
        else{
            connectionString = "?;deviceside=false?;connectionUID="+carrierUid + "?;ConnectionType=mds-public";
        }               
    }
    else if(CoverageInfo.getCoverageStatus() == CoverageInfo.COVERAGE_NONE) {          
            }
        return connectionString;
    }

这篇关于APN没有规定？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！