$.ajax({ type:"post", traditional: true, data:{arr:arr}, url:"${pageContext.request.contextPath}/customer/deleteById", dataType:"json", success: function (msg) { if(msg.code==200){ window.location.href="${pageContext.request.contextPath}/customer/findAll"; }else{ alert("删除失败"); window.location.href="${pageContext.request.contextPath}/customer/findAll"; } } 控制层代码: @RequestMapping("deleteById") @ResponseBody public Map<String ,Object> deleteById(String [] arr){ Map<String,Object> map=new HashMap<>(); boolean b= customerService.deleteById(arr); if(b){ map.put("code",200); }else { map.put("code",500); } return map; }