uploadPreview 上传图片预览

1.引入js文件

<script src="<%=basePath%>/js/common/uploadPreview.js" type="text/javascript"></script>

2. 

$(function(){
new uploadPreview({ UpBtn: "imgview", DivShow: "photodiv", ImgShow: "photoimg" });
});

3. jsp 中 html 代码

<span class="sczp" id="imgDiv">
        <div id="photodiv" >
        <img id="photoimg"  width="100px" height="100px"  />
        </div>
        </span>
        <span class="sctp_yq" >
        <span class="red">*</span>建议上传生活照片<br />
        <span class="red">*</span>建议尺寸300*300像素<br />
        <span class="red">*</span>格式为jpg或png<br />
        <input type="file" name="upload" id="imgview"  value="上传照片"  style="margin-top:6px;" />
        </span>