Change query string in JAVA

person shubham sharmafolder_openAndroid, JAVA, Minelocal_offerJAVA, Mine, Query stringaccess_time March 17, 2017

import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URLEncoder; import java.util.HashMap; import java.util.Map; public class MyURLClass { public String addOrChangeQuery(String mainUrl, String key, String newValue) throws MalformedURLException, UnsupportedEncodingException { int queryStart = mainUrl.indexOf('?'); String newUrl; if (queryStart == -1) { newUrl = mainUrl + "?" + getNewQuery(null, key, newValue); } else { newUrl = mainUrl.substring(0, queryStart) + "?" + getNewQuery(mainUrl.substring(queryStart + 1), key, newValue); } return newUrl; } private String getNewQuery(String query, String key, String newValue) throws UnsupportedEncodingException { Map<String, String> map = new HashMap<>(); if (query == null) { map.put(key, newValue); } else { String[] params = query.split("&"); Boolean isKey = false; for (String param : params) { String queryName = param.split("=")[0]; String queryValue = param.split("=")[1]; if (queryName.equalsIgnoreCase(key)) { isKey = true; queryValue = newValue; } map.put(queryName, queryValue); } if (!isKey) { map.put(key, newValue); } } StringBuilder sb = new StringBuilder(); for (HashMap.Entry<String, String> e : map.entrySet()) { if (sb.length() > 0) { sb.append('&'); } sb.append(URLEncoder.encode(e.getKey(), "UTF-8")).append('=').append(URLEncoder.encode(e.getValue(), "UTF-8")); } return sb.toString(); } private Map<String, String> getQueryMap(String query) { Map<String, String> map = new HashMap<>(); String[] params = query.split("&"); for (String param : params) { String queryName = param.split("=")[0]; String queryValue = param.split("=")[1]; map.put(queryName, queryValue); } return map; } }

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import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URLEncoder; import java.util.HashMap; import java.util.Map;   public class MyURLClass {     public String addOrChangeQuery(String mainUrl, String key, String newValue) throws MalformedURLException, UnsupportedEncodingException {         int queryStart = mainUrl.indexOf('?');         String newUrl;         if (queryStart == -1) {             newUrl = mainUrl + "?" + getNewQuery(null, key, newValue);         } else {             newUrl = mainUrl.substring(0, queryStart) + "?" + getNewQuery(mainUrl.substring(queryStart + 1), key, newValue);         }         return newUrl;     }       private String getNewQuery(String query, String key, String newValue) throws UnsupportedEncodingException {         Map<String, String> map = new HashMap<>();         if (query == null) {             map.put(key, newValue);         } else {             String[] params = query.split("&");             Boolean isKey = false;             for (String param : params) {                 String queryName = param.split("=")[0];                 String queryValue = param.split("=")[1];                 if (queryName.equalsIgnoreCase(key)) {                     isKey = true;                     queryValue = newValue;                 }                 map.put(queryName, queryValue);             }             if (!isKey) {                 map.put(key, newValue);             }         }         StringBuilder sb = new StringBuilder();         for (HashMap.Entry<String, String> e : map.entrySet()) {             if (sb.length() > 0) {                 sb.append('&');             }             sb.append(URLEncoder.encode(e.getKey(), "UTF-8")).append('=').append(URLEncoder.encode(e.getValue(), "UTF-8"));         }         return sb.toString();     }       private Map<String, String> getQueryMap(String query) {         Map<String, String> map = new HashMap<>();         String[] params = query.split("&");         for (String param : params) {             String queryName = param.split("=")[0];             String queryValue = param.split("=")[1];             map.put(queryName, queryValue);         }         return map;     } }