英雄联盟大电影,濑田水一,宝宝鞋子的织法
本文实例讲述了jsp结合js实现img中src更新请求的方法。分享给大家供大家参考。具体如下:
1.javascript(更新的函数)
<script type="text/javascript"> function changeimage(){ var img = document.getelementbyid("imgvcode"); if(img.name == 1){ img.name = 2; img.src = "shop.do?method=registerimage2"; }else if(img.name == 2){ img.name = 1; img.src = "shop.do?method=registerimage"; } } </script>
2.jsp中img和img改变的代码
<td> <img class="yzm_img" id='imgvcode' name="1" src="shop.do?method=registerimage" /> <input name="code" type="text" id="txtverifycode" class="yzm_input" onblur="testcode(this)"/> <div class="text_left t1"> <p class="t1"> <span id="vcodevalidmsg">请输入图片中的四个字母。</span> <span id="codeinfo" style="color:red"></span> <a href="#" id="imgchange" onclick="changeimage()">看不清楚?换个图片</a> </p> </div> </td>
3.后台action代码
public actionforward registerimage(actionmapping mapping, actionform form, httpservletrequest request, httpservletresponse response) throws exception { //将image创建,返回认证码 response.setcontenttype("image/jpeg"); outputstream out = response.getoutputstream(); string strensure = shopmanager.createimageinfo(50,20,out); //设置到session中 request.getsession().setattribute("strensure", strensure); return null; } public actionforward registerimage2(actionmapping mapping, actionform form, httpservletrequest request, httpservletresponse response) throws exception { //将image创建,返回认证码 response.setcontenttype("image/jpeg"); outputstream out = response.getoutputstream(); string strensure = shopmanager.createimageinfo(50,20,out); //设置到session中 request.getsession().setattribute("strensure", strensure); return null; }
希望本文所述对大家的javascript程序设计有所帮助。
如对本文有疑问,请在下面进行留言讨论,广大热心网友会与你互动!! 点击进行留言回复
浅析我对 String、StringBuilder、StringBuffer 的理解
使用IDEA搭建SSM框架的详细教程(spring + springMVC +MyBatis)
Springboot整合freemarker 404问题解决方案
引入mybatis-plus报 Invalid bound statement错误问题的解决方法
网友评论