java 获取request参数集

Enumeration enu=request.getParameterNames(); 
while(enu.hasMoreElements()){ 
　　String paraName=(String)enu.nextElement(); 
　　System.out.println(paraName+": "+request.getParameter(paraName)); 
} 

	Map map=request.getParameterMap(); 
			Set keSet=map.entrySet(); 
			for(Iterator itr=keSet.iterator();itr.hasNext();){ 
			Map.Entry me=(Map.Entry)itr.next(); 
				Object key=me.getKey(); 
				Object keyvalue=me.getValue(); 
				String[] value=new String[1]; 
				if(keyvalue instanceof String[]){ 
			       value=(String[])keyvalue; 
				}else{ 
				   value[0]=keyvalue.toString(); 
				} 
	
				for(int k=0;k<value.length;k++){ 
				   System.out.println(key+"="+value[k]); 
				} 
			}