Java:URI中的非法字符

Question

我尝试使用此源代码请求googles geo api

client = new DefaultHttpClient();
    HttpGet get=new HttpGet(uri);
        try {
            HttpResponse response = client.execute(get);
            int statusCode = response.getStatusLine().getStatusCode();
             if (statusCode == 200 ){
                    HttpEntity entity = response.getEntity();
                    InputStream is = entity.getContent();
                    try {
                        XMLReader parser = XMLReaderFactory.createXMLReader();
                        parser.setContentHandler(gh);
                        parser.parse(new InputSource(is));
                    } catch (IllegalStateException e) {
                        e.printStackTrace();
                    } catch (SAXException e) {
                        e.printStackTrace();
                    }
             }
        } catch (IOException e) {
            e.printStackTrace();
        }

URI是这样的 http://maps.googleapis.com:80/maps/api/geocode/xml?address =Königstraße,Berlin&sensor = false

抛出异常:非法角色!

我怎样才能逃脱ä,ü,ö,ß和空白？我尝试使用ISO-8859-1作为编码的java.net.URLEncoder没有成功:(

尊重igor

Answer 1

您需要使用UTF-8对Invididual请求参数值进行URL编码,而不是使用ISO-8859-1对整个URL进行URL编码.

String url = "http://maps.googleapis.com:80/maps/api/geocode/xml"
    + "?address=" + URLEncoder.encode("Königstraße, Berlin", "UTF-8") 
    + "&sensor=false";