Jquery ajax异步提交

2025-01-30 技术教程

Ajax原生方法：

<scripttype="text/javascript">functiondelStudent(studentid){$.ajax({url:"/project/studentRpc/"+studentid+"/deleteStudentById.json",type:"get",dataType:'json',success:function(data){varisDeleted=data.content.successed;alert(typeofisDeleted);if(isDeleted==true){alert("删除成功");window.location.reload();}}});}</script>

dataType:'json' 设置返回值类型

contentType:"application/x-www-form-urlencoded"(默认值)

contentType参考文章：

http://blog.csdn.net/mhmyqn/article/details/25561535

页面采用回调函数function(data) 处理后台返回的结果

a标签onclick事件触发

<ahref="javascript:void(0);"class="btnbtn-default"id="add"onclick="returnaddproduct(${s.id});">加入秒杀</a>

前台

functionaddproduct(id){varmprice=document.getElementById("mprice_"+id).value;varnumber=document.getElementById("number_"+id).value;varsid=document.getElementById("special.id").value;if(mprice==""){alert("请输入特价价格");returnfalse;}elseif(number==""){alert("请输入特价数量");returnfalse;}else{//重点在这儿$.get("${ctx}/special/addProduct.action?specialVo.quantity="+number+"&specialVo.memberPrice="+mprice+"&specialVo.id="+id+"&special.id="+sid,function(data){if(data=="true"){alert("添加成功");window.location.reload();}})/*window.location.href="${ctx}/special/addProduct.action?specialVo.quantity="+number+"&specialVo.memberPrice="+mprice+"&specialVo.id="+id+"&special.id="+sid;*/}}

后台

publicvoidaddProduct(){PrintWriterout=null;try{System.out.println(specialVo.getQuantity());System.out.println(specialVo.getMemberPrice());System.out.println(specialVo.getId());System.out.println(special.getId());HttpServletResponseresponse=ServletActionContext.getResponse();out=response.getWriter();out.print(true);out.flush();out.close();}catch(Exceptione){e.printStackTrace();out.flush();out.close();out.println(0);}}

struts配置action无需result

方法有两种,一是返回无类型,即void类型,二是返回Action.NONE(String类型)当是这两种类型的时候,struts2就不会对result进行主动处理了

即我们只需要在action方法中,处理ajax调用,而返回void或者"none"就行了

参考文章：

http://bbs.csdn.net/topics/390470284

http://blog.csdn.net/xuzhuang2008/article/details/6928304