自动匹配autocomplete

1.页面

$(function(){ 
		//自动匹配开始
		var onAutocompleteSelect = function(value, data) {  
		  //var str = value.split(" ")[0];
		  document.getElementById("doctitle").value = value;
		  /*var datas = $.evalJSON(data);
		  document.getElementById("sbmc").value = datas.fixDevicename;//匹配信息1
		  document.getElementById("sbpp").value = datas.fixBrand;//匹配信息2
		  document.getElementById("sbxh").value = datas.fixBrand;//匹配信息3 */
	    }
		var options = { 
			serviceUrl:"<%=AppUrl%>/common.do",
 	 		minChars:1, 
	 		onSelect:onAutocompleteSelect,
	  		params: { 
		  		tblname:"documentinfo",
	  	    	formaction:"matchtitle"
	 		},
	 		deferRequestBy: 0
		}; 
		var a = $('#doctitle').autocomplete(options);
		a.enable();
		//自动匹配结束 
});

 2.// 自动匹配搜索操作

        if (formaction.equals("matchtitle")) {
            String keyword = StrUtil.checkNull(session.getRequest().getParameter("query"), "-1");
            try {
            	//中文需要转换，使用javascript的escape编码，所有字符集都可用
            	keyword = URLDecoder.decode(keyword, "utf-8");
			} catch (UnsupportedEncodingException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
            
            String hql = " from DocumentInfo  WHERE bt like '%"
                    + keyword + "%' " + " ORDER BY xh ASC"; 
            
            String docTable = DocumentInfoManager.getDocTitleJson(hql, keyword); 
            session.getRequest().setAttribute("ResultXml", docTable);
            ar = new ActionResult("/success.jsp?isajax=true", "");
        }