for example, whether www.baidu.com?name=test&sex=1, can directly obtain the name or sex parameters in this url, or add parameters, for example, I now add a tool class like age=28, is there any recommendation, online, etc.
for example, whether www.baidu.com?name=test&sex=1, can directly obtain the name or sex parameters in this url, or add parameters, for example, I now add a tool class like age=28, is there any recommendation, online, etc.
String url = "http://www.baidu.com?a=1&b=2&c=3";
int index = url.indexOf("?");
String param = url.substring(index+1);
String[] params = param.split("&");
Map<String,String> map = new HashMap<>();
for (String item:params) {
String[] kv = item.split("=");
map.put(kv[0],kv[1]);
}
System.out.println(map);
{aquired 1, baked 2, cased 3}
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
public class UrlUtil {
/**
* urlget
*
* @param url
* @param name
* @param value
* @return url
*/
public static String addOrReplaceParam(String url, String name, String value) {
if(value==null ||"".equals(value))return url;
try {
value =URLEncoder.encode(value,"UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (url.indexOf("&" + name + "=") >= 0
|| url.indexOf("?" + name + "=") >= 0) {
if (url.indexOf("&" + name + "=") >= 0) {
url = url.replaceFirst("\\&" + name + "\\=\\w+\\&", "&" + name
+ "=" + value + "&");
url = url.replaceFirst("\\&" + name + "\\=\\w+", "&" + name
+ "=" + value);
} else {
url = url.replaceFirst("\\?" + name + "\\=\\w+\\&", "?" + name
+ "=" + value + "&");
url = url.replaceFirst("\\?" + name + "\\=\\w+", "?" + name
+ "=" + value);
}
return url;
} else {
if (url.indexOf("?") > 0)
return url + "&" + name + "=" + value;
else
return url + "?" + name + "=" + value;
}
}
}
if spring-web is used, there is a UriComponentBuilder that can be used
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