我需要3個嘗試塊進行網址編碼嗎？

Question

我嘗試這樣做：

String query = "http://maps.googleapis.com/maps/api/geocode/xml?address="+country+"+"+province+"+"+city+"&sensor=false"; 

try { 
    query = URLEncoder.encode(query, "UTF-8"); 
} 
catch (Exception e) { 
    println("getLatLonFromAdress URLEncoder error: "+e); 
    return new float[] { -1f, -1f }; 
} 

但事實證明了網址爲：

http%3A%2F%2Fmaps.googleapis.com%2Fmaps%2Fapi%2Fgeocode%2Fxml%3Faddress%3DCanada%2BAlberta%2BGrande+Cache%26sensor%3Dfalse 

所以我只是想編碼的國家，省，市。在一個嘗試塊中處理這個問題不好嗎？如：

try { 
    country = URLEncoder.encode(country, "UTF-8"); 
    province = URLEncoder.encode(province, "UTF-8"); 
    city = URLEncoder.encode(city, "UTF-8"); 
} 
catch (Exception e) {…} 

Answer 1

如果您傳遞的是「UTF-8」，則不會拋出UnsupportedEncodingException，因爲它始終存在。因此，你可以愉快地處理它們全部在1捕獲。