java截取url中的值

 1    Map<String, Object> urlSplit(String data){
 2         StringBuffer strbuf = new StringBuffer();
 3         StringBuffer strbuf2 = new StringBuffer();
 4         Map<String ,Object> map = new HashMap<String,Object>();
 5         for(int i =0;i<data.length();i++){
 6 
 7             if(data.substring(i,i+1).equals("=")){
 8 
 9                 for(int n=i+1;n<data.length();n++){
10                     if(data.substring(n,n+1).equals("&")|| n ==data.length()-1){
11                         map.put(strbuf.toString(), strbuf2);
12                         strbuf =new  StringBuffer("");
13                         strbuf2 =new  StringBuffer("");
14                         i=n;
15                         break;
16                     }
17                     strbuf2.append(data.substring(n,n+1));
18                 }
19                 continue;
20             }
21             strbuf.append(data.substring(i,i+1));
22         }
23 
24         return map;
25     }