从Java中的查询字符串发送和获取数据 [英] send and get data from query string in java

问题描述

大家好....
有人可以告诉我如何从查询字符串中收集数据吗?
我的查询字符串是geiveBelow ...
< a href ="EditServlet?ConId =<％out.print(str);％>">
那么如何在名为Servlet的下一个servlet上获取ConId的值?

hello to all of you....
can anybody will tell me how can i collect data from query string
my query string is geiveBelow...
<a href="EditServlet?ConId=<%out.print(str) ;%>">
then how can i get value of ConId on next servlet named as EditServlet

推荐答案

Java?您确定您不是指JavaScript吗?

Java代码:

Java? are you sure you dont mean javascript?

Java Code:

# public static Map<String, String> getQueryMap(String query)
# {
#     String[] params = query.split("&");
#     Map<String, String> map = new HashMap<String, String>();
#     for (String param : params)
#     {
#         String name = param.split("=")[0];
#         String value = param.split("=")[1];
#         map.put(name, value);
#     }
#     return map;
# }

Javascript代码:

Javascript Code:

function getArgs() {
 var args = new Object();
 var query = location.search.substring(1);
 var pairs = query.split("&");
  for(var i = 0; i < pairs.length; i++) {
   var pos = pairs[i].indexOf('=');
   if (pos == -1) continue;
    var argname = pairs[i].substring(0,pos);
    var value = pairs[i].substring(pos+1);
    args[argname] = unescape(value);
   }
  return args;
 }
var args = getArgs();
if (args.a) a = parseInt(args.a);
document.write(a);

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