前台中文搜索到后台乱码

前台， 用encodeURI

 $.getJSON("/portal/edu/findEduList?keyword="+encodeURI(keyword,"utf-8")+"&rn="+Math.random(),function(data){	

后台用decode解析

try {
			URLDecoder.decode(keyword,"utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		}