用request.getParameterMap()获得jsp页面元素的集合出现[Ljava.lang.String;@的问题解决

 

map.get("account_code")  得到的是数组

Map map = request.getParameterMap();  

 HashMap newMap = new HashMap();

  for(Iterator iter = map.entrySet().iterator();iter.hasNext();){  

         Map.Entry element = (Map.Entry)iter.next();    

       Object strKey = element.getKey();    

       String[] value=(String[])element.getValue();

          String valueStr="";         

  System.out.print(strKey.toString() +"=");   

        //没有 checkbox，用value[0]得到

//          for(int i=0;i <value.length;i++){

//              System.out.print(value[i]+",");

//              valueStr += value[i] +",";

//          }       

    valueStr += value[0] +",";    

       System.out.println();   

                  newMap.put(strKey,valueStr);   

}  

  for (Object key : newMap.keySet()) {

          System.out.println(key + "<------------->" + newMap.get(key));       

}