我只想知道我们如何从 URL 中检索所有变量及其在 android(Java) 中的值。
例如,如果我有如下 URL,
http://www.sample.com/json/just_in.asp? variable1=value1&variable2=value2
然后想用它的值检索variable1
and并将其存储在where和variable2
hashmap
key=variable name(variable1)
value=variable value(value1)
我只想知道我们如何从 URL 中检索所有变量及其在 android(Java) 中的值。
例如,如果我有如下 URL,
http://www.sample.com/json/just_in.asp? variable1=value1&variable2=value2
然后想用它的值检索variable1
and并将其存储在where和variable2
hashmap
key=variable name(variable1)
value=variable value(value1)
Like so:
HashMap<String, String> map = new HashMap<String, String>();
try {
String url = "http://www.sample.com/json/just_in.asp?variable1=value1&variable2=value2";
List<NameValuePair> parameters = URLEncodedUtils.parse(new URI(url), "UTF-8");
for (NameValuePair p : parameters) {
map.put(p.getName(), p.getValue());
}
} catch (URISyntaxException e) {
e.printStackTrace();
}
map
will contain key/value pairs of your parameters.
Create a Uri
object out of your URL/string.
String myUrl = "http://www.sample.com/json/just_in.asp?variable1=value1&variable2=value2";
Uri uri = Uri.parse(myUrl);
String variable1 = uri.getQueryParameter("variable1");
String variable2 = uri.getQueryParameter("variable2");
See http://developer.android.com/reference/android/net/Uri.html for more information on the topic.
使用这个简单的代码
final String[] params = url.split("&");
final Map<String, String> map = new HashMap<String, String>();
try {
for (final String param : params) {
final String name = param.split("=")[0];
final String value = param.split("=")[1];
map.put(name, value);
}
} catch (final Exception e) {
e.printStackTrace();
}
就我而言,我写了
private static final String SYMBOL_EQUAL = "=";
private static final String SYMBOL_COMMA = ",";
private static final String SYMBOL_AND = "&";
public static HashMap<String, String> getParamList(String encodedUrl) throws IOException {
final HashMap<String, String> map = new HashMap<String, String>();
final String url = URLDecoder.decode(encodedUrl, StandardCharsets.UTF_8.name());
final String[] params = url.split(SYMBOL_AND);
try {
for (final String param : params) {
final String name = param.split(SYMBOL_EQUAL)[0];
final String value = param.split(SYMBOL_EQUAL)[1];
map.put(name, value);
}
} catch (final Exception e) {
LOGGER.error(e.getMessage());
}
return map;
}