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  • 记录Java中对url中的参数进行编码

    Code:

    import java.net.URLEncoder;
    import java.util.HashMap;
    import java.util.Iterator;
    import java.util.Map;
    import java.util.StringTokenizer;
    
    public class url {
        public static void main(String[] args)throws Exception {
          String str="http://nufm.dfcfw.com/EM_Finance2014NumericApplication/JS.aspx?type=CT&cmd=C._A&sty=FCOIATA&sortType=C&sortRule=-1&page=1&pageSize=70&js=var%20quote_123%3d{rank:[(x)],pages:(pc)}&token=7bc05d0d4c3c22ef9fca8c2a912d779c&jsName=quote_123&_g=0.5927966693718834";
          String result=GetRealUrl(str);
          System.out.println(result);
        }
    
        //对url中的参数进行url编码
        public static String GetRealUrl(String str) {
            try {
                int index = str.indexOf("?");
                if (index < 0) return str;
                String query = str.substring(0, index);
                String params = str.substring(index + 1);
                Map map = GetArgs(params);
                //Map map=TransStringToMap(params);
                String encodeParams = TransMapToString(map);
                return query + "?" + encodeParams;
            } catch (Exception ex) {
                System.out.println(ex.getMessage());
            }
            return "";
        }
    
        //将url参数格式转化为map
        public static Map GetArgs(String params) throws Exception{
            Map map=new HashMap();
            String[] pairs=params.split("&");
            for(int i=0;i<pairs.length;i++){
                int pos=pairs[i].indexOf("=");
                if(pos==-1) continue;
                String argname=pairs[i].substring(0,pos);
                String value=pairs[i].substring(pos+1);
                value= URLEncoder.encode(value,"utf-8");
                map.put(argname,value);
            }
            return map;
        }
    
        //将map转化为指定的String类型
        public static String TransMapToString(Map map){
            java.util.Map.Entry entry;
            StringBuffer sb = new StringBuffer();
            for(Iterator iterator = map.entrySet().iterator(); iterator.hasNext();)
            {
                entry = (java.util.Map.Entry)iterator.next();
                sb.append(entry.getKey().toString()).append( "=" ).append(null==entry.getValue()?"":
                        entry.getValue().toString()).append (iterator.hasNext() ? "&" : "");
            }
            return sb.toString();
        }
    
        //将String类型按一定规则转换为Map
        public static Map TransStringToMap(String mapString){
            Map map = new HashMap();
            java.util.StringTokenizer items;
            for(StringTokenizer entrys = new StringTokenizer(mapString, "&"); entrys.hasMoreTokens();
                map.put(items.nextToken(), items.hasMoreTokens() ? ((Object) (items.nextToken())) : null))
                items = new StringTokenizer(entrys.nextToken(), "=");
            return map;
        }
    }

    Output:

    http://nufm.dfcfw.com/EM_Finance2014NumericApplication/JS.aspx?sortType=C&sortRule=-1&_g=0.5927966693718834&sty=FCOIATA&pageSize=70&js=var%2520quote_123%253d%7Brank%3A%5B%28x%29%5D%2Cpages%3A%28pc%29%7D&cmd=C._A&page=1&type=CT&token=7bc05d0d4c3c22ef9fca8c2a912d779c&jsName=quote_123

    上面code里面有两个方法,分别是String转换成map,一个是map转换成String,收集记录!

    http://blog.csdn.net/ziwen00/article/details/7976144

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  • 原文地址:https://www.cnblogs.com/hongdada/p/7565506.html
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