java + jquery + ajax + json 交互
java + jquery + ajax + json 交互
- 前端js格式:
$.ajax({ async:true, cache:false, type:"POST", dataType : 'json', url:"/shopping/cart/cartNum", error:function(json){alert(json);}, timeout:60000, success:function(json){ if(json.isSuc){ $("#dscCartNum").html(json.datas); }else{ $("#dscCartNum").html(json.des); } } });
- 后端(servlet)写法:
try{ response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); out.write("{\"des\" : \""+des+"\" , \"isSuc\" : "+isSuc+" , \"datas\" : \""+dataStr+"\"}";); }catch(Exception ex){ ex.printStackTrace(); }
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