此代码在tryandcatch中给出了意外token错误。怎么了？publicclassWeatherTest{Stringweatherurl="http://weather.yahooapis.com/forecastrss?w=35801&u=c";HttpClienthttpClient=newDefaultHttpClient();HttpGethttpGet=newHttpGet(weatherurl);try{HttpEntityhttpEntity=httpClient.execute(httpGet).getEntity();InputStreaminputStrea